Photoelectric studies of a nearby stellar ring in Aquila.
Abstract
Photoelectric Studies of a Nearby Stellar Ring in Aquila Photoelectric UBV photometry has been used to determine the distance of a stellar ring in Aquila. A distance modulus of 6rn.95 and reddening E r = 0' 8 were obtained, yielding a minor diameter of 7.4 pc. Stars in the range 0m1 <B- V <Om.6 exhibit an UV-excess similar to that observed in the very young open cluster NGC 2264. Key wor : photoelectric UBV-photometry - UV-excess - distance modulus - stellar ring Mit HIlfe lichtelektrischer Messungen in UBV wurde die Entfernung des Aquila.Rings nen bestimmt. Der kleine Durchmesser ergibt sich zu 7.4 pc. Sterne mit Farbenindizes 0m1 <B- V <($ 6 zeigen cinen deutlichen UV-ExzeB, wie er in dem sehr jungen Sternhaufen NGC 2264 beobachtet wird.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 1969
- Bibcode:
- 1969A&A.....3..210I