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DDO photometry of the open cluster IC 4756

Journal Article · · Publ. Astron. Soc. Pac.; (United States)
DOI:https://doi.org/10.1086/131162· OSTI ID:6403682
DDO photometry is presented for 13 red stars in the field of IC 4756, ten of which are classified as proper-motion cluster giants. Of these ten, one is found to be a dwarf, in agreement with the uvby photometry of Schmidt (1978). The strength of the delta CN cyanogen excess parameter for five of the giants indicates that the cluster has essentially solar abundance. 12 references.
Research Organization:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
OSTI ID:
6403682
Journal Information:
Publ. Astron. Soc. Pac.; (United States), Journal Name: Publ. Astron. Soc. Pac.; (United States) Vol. 95; ISSN PASPA
Country of Publication:
United States
Language:
English

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