RGU photometry of eight open clusters near eta Carinae: NGC 3572, NGC 3590, Tr 18, Tr 17, Ru 92, Ru 93, Stock 13 and Ba 17.
By means of RGU three-colour photographic photometry eight open clusters near Carinae have been investigated. The distances, reddening E(G - R) and earliest spectral types for these clusters are summarized in the following table: cluster distance reddening earliest spectral E(G-R) type NGC 3572 2700 pc G .50 bO.9 NUC 3590 2360 pc (Y 62 b2.5 Tr18 1100pc 023 b2.5 Tr 17 2300 pc OW64 b3 Ru92 3100pc (Y 61 b2.5 Ru93 1570pc b7 Stock 13 2650pc 0W39 bOS Ba 17 1650 pc (r.22 b4 The last of these, Ba 17, is a previously undetected cluster. Key words: open clusters
Astronomy and Astrophysics Supplement Series
- Pub Date:
- March 1977