Abstract
The first dedicated catalogue of southern double stars was published in 1829 by
James Dunlop. Basing our work solely on the published data, we describe this catalogue, give a biography of Dunlop and a history of the catalogue and look at the data presented. Of the 253 doubles presented, Dunlop himself described one as single and 14 as triples. The smallest separation claimed was ~2 arcsec and limiting magnitudes were ~7 and ~8.5 for each of the two telescopes used. All observations were across the sky and approximately south of the Tropic of Capricorn.
James Dunlop. Basing our work solely on the published data, we describe this catalogue, give a biography of Dunlop and a history of the catalogue and look at the data presented. Of the 253 doubles presented, Dunlop himself described one as single and 14 as triples. The smallest separation claimed was ~2 arcsec and limiting magnitudes were ~7 and ~8.5 for each of the two telescopes used. All observations were across the sky and approximately south of the Tropic of Capricorn.
| Original language | English |
|---|---|
| Pages (from-to) | 350-360 |
| Number of pages | 11 |
| Journal | Journal of Double Star Observations |
| Volume | 15 |
| Issue number | 3 |
| Publication status | Published - 01 Jul 2019 |