Differences between the revised collection of sunspot group numbers (Vaquero et al., 2016) and the data by Hoyt and Schatten (1998). NAME YEAR NOTES GALIEO, G., ROME 1612 New recount for these data MARIUS, S., NUREMBERG 1617 Continuous record from 8 Jun to 31 Dec (zero values). Removed RICCIOLI, J.B., BONONIA 1618 Almost continuous record (zero values). Removed MARIUS, S., NUREMBERG 1618 Almost continuous record (zero values). Removed SMOGULECZ, D., INGOLSTADT 1625 Added additional observations SCHEINER, C., ROME 1632 Continuous record from 13 March to 8 May. Not removed RICCIOLI, J.B., BONONIA 1632 Continuous record from 12 Jul from 15 Sep. Not removed. ZAHN, J., NUREMBERG 1632 "365 ""zero values"". Removed" GASSENDI, P., PARIS 1633 Continuous record from 1 Jan from 31 Mar. Removed. GASSENDI, P., PARIS 1634 Almost continuous record (zero and no-zero values). Removed ARGOLI, A., VENICE 1634 Added according to Vaquero (2003), The Observatory GASSENDI, P., PARIS 1635 Almost continuous record (zero and no-zero values). Removed MARCGRAF, LEIDEN 1637 Added according to Vaquero et al. (2011) HORROX, J., LIVERPOOL 1638 Corrected according to Vaquero et al. (2011) CRABTREE, W., ENGLAND 1638 Estimated values. Removed CRABTREE, W., ENGLAND 1639 Estimated values. Removed HORROX, J., LIVERPOOL 1639 Added according to Vaquero et al. (2011) STRAZYC, A., KRAKOW 1640 Added according to Vaquero and Trigo (2014) RHEITA, K., BOHEMIA 1642 Corrected according to Vaquero et al. (2011) HEVELIUS, J., DANZIG 1645 Uncertain values. Removed HEVELIUS, J., DANZIG 1646 Uncertain values. Removed HEVELIUS, J., DANZIG 1647 Uncertain values. Removed UNKNOWN/KRAFT,1745 1648 Continuous record (zero values) from 1 May to 21 Aug. Not removed HEVELIUS, J., DANZIG 1648 Uncertain values. Removed HEVELIUS, J., DANZIG 1649 Uncertain values. Removed HEVELIUS, J., DANZIG 1650 Uncertain values. Removed HEVELIUS, J., DANZIG 1651 Uncertain values. Removed HEVELIUS, J., DANZIG 1652 Changed according to Vaquero and Trigo (2014) Solar Physics. UNKNOWN1/MAUNDER/JBAA 1652 Continuous values (zero) from 14 Nov to 31 Dec. Not removed PICARD/KEILL, PARIS 1653 Almost continuous values (zero). Not removed PICARD/KEILL, PARIS 1654 Almost continuous values (zero). Not removed UNKNOWN1/MAUNDER/JBAA 1654 "Almost continuous values (zeros and three ""1""). Not removed" PICARD/KEILL, PARIS 1655 Almost continuous values (zero). Removed RICCIOLI, J.B., BONONIA 1655 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) RICCIOLI, J.B., BONONIA 1656 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) CASSINI, G.D., PARIS 1656 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) PICARD/KEILL, PARIS 1656 Almost continuous values (zero). Removed RICCIOLI, J.B., BONONIA 1657 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) PICARD/KEILL, PARIS 1657 Almost continuous values (zero). Removed MARALDI, F., BONONIA 1658 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) PICARD/KEILL, PARIS 1658 Continuous record. Removed MARALDI, F., BONONIA 1659 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) PICARD/KEILL, PARIS 1659 Continuous record. Removed MOUTON, G., LYON 1659 Derived records. Not removed PICARD, J., PARIS 1660 Almost continuous values. Not removed MARALDI, F., BONONIA 1660 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MOUTON, G., LYON 1660 Derived records. Not removed RICCIOLI, J.B., BONONIA 1661 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) PICARD, J., PARIS 1661 Almost continuous values (zero). Removed PICARD, J., PARIS 1662 Continuous values (zero). Removed FOGEL, M., HAMBURG 1662 Continuous values (zero). Removed WEIGEL, E., JENA 1662 Continuous values (zero). Removed MARALDI, F., BONONIA 1663 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MEZZAVACCA, C., BONONIA 1663 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MENGOLI, P., BONONIA 1663 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) PICARD, J., PARIS 1663 Continuous values (zero). Removed FOGEL, M., HAMBURG 1663 Continuous values (zero). Removed WEIGEL, E., JENA 1663 Continuous values (zero). Removed PICARD, J., PARIS 1664 Continuous values (zero). Removed FOGEL, M., HAMBURG 1664 Continuous values (zero). Removed WEIGEL, E., JENA 1664 Continuous values (zero). Removed MEZZAVACCA, C., BONONIA 1665 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) PICARD, J., PARIS 1665 Continuous values (zero). Removed FOGEL, M., HAMBURG 1665 Continuous values (zero). Removed MARALDI, F., BONONIA 1666 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MENGOLI, P., BONONIA 1666 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) WEICKMANN, C., GERMANY 1666 Continuous values (zero). Removed FOGEL, M., HAMBURG 1666 Continuous values (zero). Removed MARALDI, F., BONONIA 1667 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MENGOLI, P., BONONIA 1667 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MEZZAVACCA, C., BONONIA 1667 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) WEICKMANN, C., GERMANY 1667 Continuous values (zero). Removed FOGEL, M., HAMBURG 1667 Continuous values (zero). Removed FABRIUS, A., BONONIA 1668 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MENGOLI, P., BONONIA 1668 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) FOGEL, M., HAMBURG 1668 Continuous values (zero). Removed FABRIUS, A., BONONIA 1669 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MARALDI, F., BONONIA 1669 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MENGOLI, P., BONONIA 1669 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) FOGEL, M., HAMBURG 1669 Continuous values (zero). Removed MARALDI, F., BONONIA 1670 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) FABRIUS, A., BONONIA 1670 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MENGOLI, P., BONONIA 1670 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MEZZAVACCA, C., BONONIA 1670 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) FOGEL, M., HAMBURG 1670 Continuous values (zero). Removed MONTANARI, G., BONONIA 1671 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) FOGEL, M., HAMBURG 1671 Almost continouos zero values except the late year. Not remove MONTANARI, G., BONONIA 1672 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MARALDI, F., BONONIA 1672 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) BION, N., PARIS 1672 Added according to Table 2 of Vaquero (2007) MONTANARI, G., BONONIA 1673 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) FABRIUS, A., BONONIA 1673 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MANZIUS, D., BONONIA 1673 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) CALCINA, J.C., BONONIA 1674 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) GULIELMINI, J.F., BONONIA 1675 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) FABRIUS, A., BONONIA 1675 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) SIVERUS, H., HAMBURG 1675 Continuous values (zero). Removed SIVERUS, H., HAMBURG 1676 Continuous values (zero) from 1 Jan to 19 Jun. Removed GULIELMINI, J.F., BONONIA 1676 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) GULIELMINI, J.F., BONONIA 1677 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) SIVERUS, H., HAMBURG 1677 Almost continuous values (zero). Removed SIVERUS, H., HAMBURG 1678 "Almost continuous values (zeros and two ""1""). Not removed" GULIELMINI, J.F., BONONIA 1678 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) GULIELMINI, J.F., BONONIA 1679 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) SIVERUS, H., HAMBURG 1679 Almost continuous values (zero). Removed SIVERUS, H., HAMBURG 1680 "Almost continuous values (zeros and three ""1""). Not removed" SIVERUS, H., HAMBURG 1681 Almost continuous values (zeros and ones). Not removed SIVERUS, H., HAMBURG 1682 Continuous values (zero). Removed SIVERUS, H., HAMBURG 1683 Continuous values (zero). Removed SIVERUS, H., HAMBURG 1684 Almost continuous values (zeros). Removed KIRCH, G., BERLIN 1684 Value removed (31-Jun) SIVERUS, H., HAMBURG 1685 Continuous values (zero). Removed SIVERUS, H., HAMBURG 1686 Almost continuous values (zeros). Removed SIVERUS, H., HAMBURG 1687 Almost continuous values (zeros). Removed SIVERUS, H., HAMBURG 1688 Almost continuous values (zeros). Removed SIVERUS, H., HAMBURG 1689 Almost continuous values (zeros) and 7 active days. Removed DECHALES, M., LUGDUNI 1689 Almost continuous values (zeros). Removed CASSINI, G.D., PARIS 1689 Almost continuous values (zeros). Removed MARALDI, M., BONONIA 1689 Almost continuous values (zeros). Removed GULIELMINI, J.F., BONONIA 1690 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) SIVERUS, H., HAMBURG 1690 Continuous values (zero). Removed GULIELMINI, J.F., BONONIA 1691 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) UCCELLI, I., BONONIA 1695 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) MEZZAVACCA, C., BONONIA 1695 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) AGERHOLM, C., COPENHAGEN 1695 Continuous values from 30 May (zero and one). Not removed GULIELMINI, J.F., BONONIA 1696 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) UCCELLI, I., BONONIA 1696 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) STANCARIUS, V.F., BONONIA 1696 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) AGERHOLM, C., COPENHAGEN 1696 Continuous values (zero). Removed STANCARIUS, V.F., BONONIA 1697 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) AGERHOLM, C., COPENHAGEN 1697 Continuous values (zero). Removed STANCARIUS, V.F., BONONIA 1698 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) AGERHOLM, C., COPENHAGEN 1698 Continuous values (zero). Removed STANCARIUS, V.F., BONONIA 1699 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) AGERHOLM, C., COPENHAGEN 1699 Continuous values (zero). Removed STANCARIUS, V.F., BONONIA 1700 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) AGERHOLM, C., COPENHAGEN 1700 Continuous values (zero) from 1 Jan to 31 Oct. Removed STANCARIUS, V.F., BONONIA 1701 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) STANCARIUS, V.F., BONONIA 1702 Removed. Meridian line in San Petronio. Table 3 of Vaquero (2007) WIEDENBURG, J.B., HELMSTADT 1708 Almost continuous values for Feb-Aug. Not removed BECKER, P., ROSTOCK 1708 Added 3 records ANONYMOUS, BERLIN 1708 Added 1 records BECKER, P., ROSTOCK 1709 Added 1 record UNKNOWN3/MAUNDER/JBAA 1709 "Continuous ""zero"" values from 18 Feb to 18 Aug. Removed" WURZELBAUR, J.P., NUREMBERG 1710 "Continuous ""zero"" values from 29 Oct to 31 Dec. Removed" DERHAM, W., UPMINSTER 1710 Almost continuous values (0 and 1) from 14 Oct. Not removed WURZELBAUR, J.P., NUREMBERG 1711 Continuous zero values. Removed DERHAM, W., UPMINSTER 1711 Continuous zero values. Removed WURZELBAUR, J.P., NUREMBERG 1712 Continuous zero values. Removed DERHAM, W., UPMINSTER 1712 Continuous zero values. Removed WURZELBAUR, J.P., NUREMBERG 1713 "Continuous ""zero"" and ""one"" values to 26 May . Not removed" DERHAM, W., UPMINSTER 1713 Almost continouos zero values. Removed DERHAM, W., UPMINSTER 1714 Continuous zero values from 1 Jan to 9 Sep. Removed MARALDI, M., BONONIA 1716 Four months of continuous zero values. Not removed. Please, revise. There are others values. HALLERSTEIN, A., PEKING 1718 Removed. See Vaquero et al. (2007) The Observatory. HALLERSTEIN, A., PEKING 1723 Removed. See Vaquero et al. (2007) The Observatory. WEIDLER, J.F., WITTENBERG 1728 Added three sunspot observations (31 July, 12 and 15 August) HALLERSTEIN, A., PEKING 1730 Changed according to Vaquero et al. (2007) The Observatory. HALLERSTEIN, A., PEKING 1731 Removed. See Vaquero et al. (2007) The Observatory. ADELBURNER, M., NUREMBERG 1733 Continuous zero values. Removed HUXHAM, J., ENGLAND 1736 Added according to Vaquero, Gallego and Trigo (2007) ASR WEIDLER, J.F., WITTENBERG 1736 Changed according to Vaquero, Gallego and Trigo (2007) ASR BEVIS, J., LONDON 1736 Added according to Vaquero, Gallego and Trigo (2007) ASR GRANDJEAN DE FOUCHY, BRETAGNE 1736 Added according to Vaquero, Gallego and Trigo (2007) ASR CASSINI DE THURY, PARIS 1737 From 1 May to 1 Mar. Vaquero, Gallego and Trigo (2007) ASR ANONYMOUS, BONONIA 1737 From 1 May to 1 Mar. Vaquero, Gallego and Trigo (2007) ASR GRAHAM, G., LONDON 1737 From 1 May to 1 Mar. Vaquero, Gallego and Trigo (2007) ASR CLERK, J., EDINBURG 1737 Added according to Vaquero, Gallego and Trigo (2007) ASR MACLAURIN, C., EDINBURG 1737 Added according to Vaquero, Gallego and Trigo (2007) ASR MASON, C., CAMBRIDGE 1737 Added according to Vaquero, Gallego and Trigo (2007) ASR GARIPUY 1737 Added according to Vaquero, Gallego and Trigo (2007) ASR CASSINI DE THURY, PARIS 1738 Changed according to Vaquero, Gallego and Trigo (2007) ASR ANONYMOUS, TOULOUSE 1738 Added according to Vaquero, Gallego and Trigo (2007) ASR HUXHAM, J., ENGLAND 1739 Removed according to Vaquero, Gallego and Trigo (2007) ASR WEIDLER, J.F., WITTENBERG 1739 Changed according to Vaquero, Gallego and Trigo (2007) ASR WINTHROP, J., CAMBRIDGE, MA 1741 Changed according to Vaquero and Trigo (2014) Solar Physics. HALLERSTEIN, A., PEKING 1746 Removed. See Vaquero et al. (2007) The Observatory. WARGENTHIN, P., UPPSALA 1747 Added according to R. Artl (personal communication) STAUDACH, J.C., NUREMBERG (LEIF RECOUNT) 1749-1799 Recount for these data HALLERSTEIN, A., PEKING 1751 Added according to Vaquero et al. (2007) The Observatory. HORREBOW/WOLF, COPENHAGEN 1767 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1768 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1769 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW - VERSION 2 1770 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1770 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1771 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW - VERSION 2 1772 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1772 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW - VERSION 2 1773 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1773 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW - VERSION 2 1774 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1774 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1775 Removed. We used the data from Horrebow, C., Copenhagen HORREBOW/WOLF, COPENHAGEN 1776 Removed. We used the data from Horrebow, C., Copenhagen ALZATE, J.A., MEXICO 1784 Added according to Vaquero (2004) Solar Physics FLAUGERGUES, H., VIVIERS 1788 Corrected according to drawings in Richard's notes BODE, J.E., BERLIN 1791 Corrected according to drawings in Richard's notes HUBER, D., BASEL 1793 Corrected according to drawings in Richard's notes HAHN, F., BERLIN 1793 Added according to Richard's notes. SUNSPOTS OBSERVED on 7th and about 15th Febraury but its number is not specific BODE, J.E., BERLIN 1794 Added according to Richard's notes FLAUGERGUES, H., AUBENAS 1794 Corrected according to Richard's notes. Sunspots observed without a specific number on 31th January FLAUGERGUES, H., AUBENAS 1795 Corrected according to Richard's notes ENDE, F.A., CELLE 1795 Not added but sunspots were observed on 5th November SCHRÖTER, GOTTINGEN 1795 Added according to Richard's notes FLAUGERGUES, H., VIVIERS 1796 Corrected and added according to Richard's notes and MÉMOIRES DE L'INSTITUT NATIONAL DES SCIENCES ET ARTS FLAUGERGUES, H., C. DE T. 1796 Removed. Continuous zero values. FLAUGERGUES, H., VIVIERS 1797 Corrected and added according to Richard's notes and MÉMOIRES DE L'INSTITUT NATIONAL DES SCIENCES ET ARTS. FLAUGERGUES, H., C. DE T. 1797 Removed. Continuous zero values and inconsistency with other Flaugergues. FLAUGERGUES, H. (C.DE T.) 1800 Removed. Continuous zero values. FLAUGERGUES, H. (C.DE T.) 1807 Removed. Continuous zero values. FRITSCH, J.H., GERMANY 1808 Removed. Continuous zero values. FRITSCH, J.H., GERMANY 1809 Removed. Continuous zero values. ENDE, F.A., CELLE 1810 Removed. Continuous zero values. GRUITHUISEN, B., MUNICH 1811 Removed. Continuous zero values. ENDE, F.A., CELLE 1811 Removed. Continuous zero values. FRITSCH, J.H., GERMANY 1811 Not removed. Continuous zero values. STARK, AUGSBURG, ZERO DAYS 1813 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1813 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, AUGSBURG, ZERO DAYS 1814 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1814 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, AUGSBURG, ZERO DAYS 1815 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1815 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, AUGSBURG, ZERO DAYS 1816 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1816 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, AUGSBURG, ZERO DAYS 1817 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1817 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, AUGSBURG, ZERO DAYS 1818 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1818 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, AUGSBURG, ZERO DAYS 1819 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1819 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. PASTORFF/WOLF, DROSSEN 1819 Removed. We used the data from original manuscript revised by Hoyt and Schatten. STARK, AUGSBURG, ZERO DAYS 1820 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1820 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, AUGSBURG, ZERO DAYS 1821 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1821 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. PASTORFF/WOLF, DROSSEN 1821 Removed. We used the data from original manuscript revised by Hoyt and Schatten. STARK, AUGSBURG, ZERO DAYS 1822 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1822 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. PASTORFF/WOLF, DROSSEN 1822 Removed. We used the data from original manuscript revised by Hoyt and Schatten. STARK, AUGSBURG, ZERO DAYS 1823 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1823 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. PASTORFF/WOLF, DROSSEN 1823 Removed. We used the data from original manuscript revised by Hoyt and Schatten. STARK, AUGSBURG, ZERO DAYS 1824 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1824 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. PASTORFF/WOLF, DROSSEN 1824 Removed. We used the data from original manuscript revised by Hoyt and Schatten. STARK, AUGSBURG, ZERO DAYS 1825 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. STARK, J.M., AUGSBURG 1825 Removed. Hoyt and Schatten noted problems (see bibliography). These records must be revised. PASTORFF/WOLF, DROSSEN 1825 Removed. We used the data from original manuscript revised by Hoyt and Schatten. SCHWABE, H., DESSAU 1825-1867 Recount for these data PASTORFF/WOLF, DROSSEN 1826 Removed. PASTORFF/WOLF, DROSSEN 1827 Removed. PASTORFF/WOLF, DROSSEN 1828 Removed. PASTORFF/WOLF, DROSSEN 1829 Removed. PASTORFF/WOLF, DROSSEN 1830 Removed. PASTORFF/WOLF, DROSSEN 1831 Removed. PASTORFF/WOLF, DROSSEN 1832 Removed. PASTORFF/WOLF, DROSSEN 1833 Removed. WOLF, R., ZURICH (SMALL TELESCOPE) 1858 Added 71 records WOLF, R., ZURICH (SMALL TELESCOPE) 1859 Added 71 records WOLF, R., ZURICH (SMALL TELESCOPE) 1860 Added 89 records WOLF, R., ZURICH (SMALL TELESCOPE) 1861 Added 232 records WOLF, R., ZURICH (SMALL TELESCOPE) 1862 Added 248 records WOLF, R., ZURICH (SMALL TELESCOPE) 1863 Added 248 records WOLF, R., ZURICH (SMALL TELESCOPE) 1864 Added 138 records WOLF, R., ZURICH (SMALL TELESCOPE) 1865 Added 29 records WOLF, R., ZURICH (SMALL TELESCOPE) 1866 Added 17 records WOLF, R., ZURICH (SMALL TELESCOPE) 1867 Added 86 records WOLF, R., ZURICH (SMALL TELESCOPE) 1868 Added 81 records WOLF, R., ZURICH (SMALL TELESCOPE) 1869 Added 150 records WOLF, R., ZURICH (SMALL TELESCOPE) 1870 Added 235 records WOLF, R., ZURICH (SMALL TELESCOPE) 1871 Added 264 records WOLF, R., ZURICH (SMALL TELESCOPE) 1872 Added 290 records WOLF, R., ZURICH (SMALL TELESCOPE) 1873 Added 290 records WOLF, R., ZURICH (SMALL TELESCOPE) 1874 Added 291 records WOLF, R., ZURICH (SMALL TELESCOPE) 1875 Added 279 records WOLF, R., ZURICH (SMALL TELESCOPE) 1876 Added 269 records WOLF, R., ZURICH (SMALL TELESCOPE) 1877 Added 286 records WOLF, R., ZURICH (SMALL TELESCOPE) 1878 Added 283 records WOLF, R., ZURICH (SMALL TELESCOPE) 1879 Added 288 records SPOERER, G., ANCLAM 1879 Value removed (31-Sep) WOLF, R., ZURICH (SMALL TELESCOPE) 1880 Added 286 records WOLF, R., ZURICH (SMALL TELESCOPE) 1881 Added 292 records WOLF, R., ZURICH (SMALL TELESCOPE) 1882 Added 289 records SPOERER, G., ANCLAM 1882 Value removed (31-Jun) WOLF, R., ZURICH (SMALL TELESCOPE) 1883 Added 298 records WOLF, R., ZURICH (SMALL TELESCOPE) 1884 Added 295 records WOLF, R., ZURICH (SMALL TELESCOPE) 1885 Added 290 records WOLF, R., ZURICH (SMALL TELESCOPE) 1886 Added 301 records ROYAL GREENWICH OBSERVATORY 1886 "Values removed (29,30,31-Feb; 31-Apr; 31-Jun; 31-Sep; 31-Nov)" WOLF, R., ZURICH (SMALL TELESCOPE) 1887 Added 303 records WOLF, R., ZURICH (SMALL TELESCOPE) 1888 Added 285 records WOLF, R., ZURICH (SMALL TELESCOPE) 1889 Added 265 records WOLF, R., ZURICH (SMALL TELESCOPE) 1890 Added 287 records HADDEN, D.E., ALTA, IOWA 1890 Corrected and incorporated according to Carrasco et al. (2013) WOLF, R., ZURICH (SMALL TELESCOPE) 1891 Added 311 records HADDEN, D.E., ALTA, IOWA 1891 Incorporated according to Carrasco et al. (2013) WOLF, R., ZURICH (SMALL TELESCOPE) 1892 Added 284 records HADDEN, D.E., ALTA, IOWA 1892 Incorporated according to Carrasco et al. (2013) WOLF, R., ZURICH (SMALL TELESCOPE) 1893 Added 264 records HADDEN, D.E., ALTA, IOWA 1893 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1894 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1895 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1896 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1897 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1898 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1899 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1900 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1901 Incorporated according to Carrasco et al. (2013) HADDEN, D.E., ALTA, IOWA 1902 Incorporated according to Carrasco et al. (2013) VALENCIA OBS., VALENCIA 1920 Added according to Carrasco et al. (2014) VALENCIA OBS., VALENCIA 1923 Added according to Carrasco et al. (2014) VALENCIA OBS., VALENCIA 1924 Added according to Carrasco et al. (2014) VALENCIA OBS., VALENCIA 1925 Added according to Carrasco et al. (2014) VALENCIA OBS., VALENCIA 1926 Added according to Carrasco et al. (2014) VALENCIA OBS., VALENCIA 1927 Added according to Carrasco et al. (2014) VALENCIA OBS., VALENCIA 1928 Added according to Carrasco et al. (2014) LUFT, H. 1924 232 records incorporated LUFT, H. 1925 157 records incorporated LUFT, H. 1926 2 records incorporated LUFT, H. 1927 56 records incorporated LUFT, H. 1928 104 records incorporated LUFT, H. 1929 86 records incorporated LUFT, H. 1930 188 records incorporated LUFT, H. 1931 205 records incorporated N.A.O., JAPAN, K=0.65 1931 Value removed (31-Nov) LUFT, H. 1932 191 records incorporated LUFT, H. 1933 126 records incorporated LUFT, H. 1937 1 record incorporated LUFT, H. 1939 200 records incorporated LUFT, H. 1940 248 records incorporated LUFT, H. 1941 93 records incorporated MT. WILSON, FULL DISK 1941 Value removed (31-Nov) LUFT, H. 1942 1 record incorporated LUFT, H. 1943 143 records incorporated LUFT, H. 1944 113 records incorporated LUFT, H. 1945 125 records incorporated LUFT, H. 1946 112 records incorporated LUFT, H. 1947 212 records incorporated CRAGG, T., LOS ANGELES 1947 194 records incorporated LUFT, H. 1948 213 records incorporated CRAGG, T., LOS ANGELES 1948 306 records incorporated 5 NEW STATIONS 1949 11 NEW STATIONS 1950 3 NEW STATIONS 1951 2 NEW STATIONS 1952 2 NEW STATIONS 1953 4 NEW STATIONS 1954 12 NEW STATIONS 1955 11 NEW STATIONS 1956 14 NEW STATIONS 1957 14 NEW STATIONS 1958 9 NEW STATIONS 1959 3 NEW STATIONS 1960 11 NEW STATIONS 1961 11 NEW STATIONS 1962 11 NEW STATIONS 1963 2 NEW STATIONS 1964 3 NEW STATIONS 1965 3 NEW STATIONS 1966 20 NEW STATIONS 1967 20 NEW STATIONS 1968 23 NEW STATIONS 1969 23 NEW STATIONS 1970 23 NEW STATIONS 1971 22 NEW STATIONS 1972 22 NEW STATIONS 1973 23 NEW STATIONS 1974 24 NEW STATIONS 1975 24 NEW STATIONS 1976 26 NEW STATIONS 1977 26 NEW STATIONS 1978 26 NEW STATIONS 1979 3 NEW STATIONS 1980 53 NEW STATIONS 1981 57 NEW STATIONS 1982 69 NEW STATIONS 1983 70 NEW STATIONS 1984 83 NEW STATIONS 1985 96 NEW STATIONS 1986 97 NEW STATIONS 1987 95 NEW STATIONS 1988 99 NEW STATIONS 1989 99 NEW STATIONS 1990 106 NEW STATIONS 1991 106 NEW STATIONS 1992 105 NEW STATIONS 1993 109 NEW STATIONS 1994 107 NEW STATIONS 1995 101 NEW STATIONS 1996 100 NEW STATIONS 1997 98 NEW STATIONS 1998 91 NEW STATIONS 1999 84 NEW STATIONS 2000 81 NEW STATIONS 2001 79 NEW STATIONS 2002 84 NEW STATIONS 2003 79 NEW STATIONS 2004 84 NEW STATIONS 2005 83 NEW STATIONS 2006 86 NEW STATIONS 2007 87 NEW STATIONS 2008 85 NEW STATIONS 2009 90 NEW STATIONS 2010