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Four-color and H$beta$ photometry of the galactic cluster NGC 6633

Journal Article · · Publ. Astron. Soc. Pac., v. 88, no. 521, pp. 63-66
DOI:https://doi.org/10.1086/129897· OSTI ID:4029724
Photometric measurements of stars in the intermediate-age galactic cluster NGC 6633 are presented. From these data the color excess is found to vary slightly across the cluster with an average of E/sub b-y/ = 0.124m. The distance modulus is found to be 7.71m and the turnoff occurs at about (b--y)$sub 0$ = 0.1m. The cluster is slightly metal poor. (auth)
Research Organization:
Univ. of Nebraska, Lincoln
Sponsoring Organization:
USDOE
NSA Number:
NSA-33-030652
OSTI ID:
4029724
Journal Information:
Publ. Astron. Soc. Pac., v. 88, no. 521, pp. 63-66, Journal Name: Publ. Astron. Soc. Pac., v. 88, no. 521, pp. 63-66; ISSN PASPA
Country of Publication:
United States
Language:
English

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