# Cyril Jackson (astronomer)

Asteroids discovered: 72 :
| 1116 Catriona | 5 April 1929 |
| 1186 Turnera | 1 August 1929 |
| 1193 Africa | 24 April 1931 |
| 1194 Aletta | 13 May 1931 |
| 1195 Orangia | 24 May 1931 |
| 1196 Sheba | 21 May 1931 |
| 1197 Rhodesia | 9 June 1931 |
| 1242 Zambesia | 28 April 1932 |
| 1243 Pamela | 7 May 1932 |
| 1244 Deira | 25 May 1932 |
| 1245 Calvinia | 26 May 1932 |
| 1246 Chaka | 23 July 1932 |
| 1248 Jugurtha | 1 September 1932 |
| 1264 Letaba | 21 April 1933 |
| 1268 Libya | 29 April 1930 |
| 1278 Kenya | 15 June 1933 |
| 1279 Uganda | 15 June 1933 |
| 1282 Utopia | 17 August 1933 |
| 1318 Nerina | 24 March 1934 |
| 1319 Disa | 19 March 1934 |
| 1320 Impala | 13 May 1934 |
| 1321 Majuba | 7 May 1934 |
| 1323 Tugela | 19 May 1934 |
| 1324 Knysna | 15 June 1934 |
| 1325 Inanda | 14 July 1934 |
| 1326 Losaka | 14 July 1934 |
| 1327 Namaqua | 7 September 1934 |
| 1349 Bechuana | 13 June 1934 |
| 1354 Botha | 3 April 1935 |
| 1355 Magoeba | 30 April 1935 |
| 1356 Nyanza | 3 May 1935 |
| 1357 Khama | 2 July 1935 |
| 1358 Gaika | 21 July 1935 |
| 1359 Prieska | 22 July 1935 |
| 1360 Tarka | 22 July 1935 |
| 1362 Griqua | 31 July 1935 |
| 1367 Nongoma | 3 July 1934 |
| 1368 Numidia | 30 April 1935 |
| 1393 Sofala | 25 May 1936 |
| 1394 Algoa | 12 June 1936 |
| 1396 Outeniqua | 9 August 1936 |
| 1397 Umtata | 9 August 1936 |
| 1427 Ruvuma | 16 May 1937 |
| 1428 Mombasa | 5 July 1937 |
| 1429 Pemba | 2 July 1937 |
| 1430 Somalia | 5 July 1937 |
| 1431 Luanda | 29 July 1937 |
| 1432 Ethiopia | 1 August 1937 |
| 1456 Saldanha | 2 July 1937 |
| 1467 Mashona | 30 July 1938 |
| 1468 Zomba | 23 July 1938 |
| 1474 Beira | 20 August 1935 |
| 1490 Limpopo | 14 June 1936 |
| 1505 Koranna | 21 April 1939 |
| 1506 Xosa | 15 May 1939 |
| 1595 Tanga$^A$ | 19 June 1930 |
| 1634 Ndola | 19 August 1935 |
| 1638 Ruanda | 3 May 1935 |
| 1641 Tana | 25 July 1935 |
| 1676 Kariba | 15 June 1939 |
| 1712 Angola | 28 May 1935 |
| 1784 Benguella | 30 June 1935 |
| 1816 Liberia | 29 January 1936 |
| 1817 Katanga | 20 June 1939 |
| 1948 Kampala | 3 April 1935 |
| 1949 Messina | 8 July 1936 |
| 2066 Palala | 4 June 1934 |
| 2825 Crosby | 19 September 1938 |
| 2865 Laurel | 31 July 1935 |
| 3768 Monroe | 5 September 1937 |
| (5452) 1937 NN | 5 July 1937 |
| 7102 Neilbone | 12 July 1936 |
| $^{(A)}$ with H. E. Wood ||
Cyril V. Jackson (5 December 1903 – February 1988) was a South African astronomer, known for discovering 72 asteroids and a number of comets.
He was born in Ossett, Yorkshire in England; his father emigrated to South Africa in 1911. He earned his B.Sc. at the University of the Witwatersrand.
He worked at Union Observatory in Johannesburg from 1928 to 1947 (IAU code 078, previously known as Transvaal Observatory and later known as Republic Observatory).
He served with South African forces in the Second World War, and was mentioned in despatches.
After the war he was director of the Yale-Columbia Southern Observatory (YCSO) station in Johannesburg (IAU code 077), which had been established by Yale University in the 1920s. Columbia University subsequently collaborated in that venture and the operation became known as the Yale-Columbia Southern Observatory (YCSO, Inc. was formally created in 1962).
Due to light pollution that observatory had to be shut down in 1951 and he supervised the move of its instrument, a 26-inch refracting telescope, to Mount Stromlo Observatory in Australia (IAU code 414). This Yale-Columbia telescope was given to the Australian National University in July 1963, and was destroyed in the 18 January 2003 firestorm that devastated Mount Stromlo.
Jackson worked at Mount Stromlo from 1957 to 1963. In 1963, Yale reopened its Columbia Southern Observatory at El Leoncito, Argentina (IAU code 808), and he served as its director there until 1966, when he retired. He discovered a number of comets, including the periodic comets 47P/Ashbrook-Jackson and 58P/Jackson-Neujmin. He also discovered 72 asteroids in the earlier part of his career at Union Observatory.