Photometric analysis of the young open cluster HOGG 16

Details Photometric analysis of the young open cluster HOGG 16 Photometric analysis of the young open cluster HOGG 16

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...90..317v&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 90, no. 2, Oct. 1991, p. 317-325. Research supported by CONI

Astronomy and Astrophysics

Astrophysics

12

Astronomical Photometry, Early Stars, Open Clusters, Interstellar Extinction, Spectrophotometry, Stellar Evolution, Ubv Spectra

Scientific paper

With UBVRI photoelectric photometry, the open cluster Hogg 16 was investigated. The data analysis shows that the cluster is composed by a poor concentrated central star group of 4 arcmin radius around the CPD-60 deg 4703 star, even though some members may be still found at a distance of 10 arcmin from it. A mean color excess, E(B - V) = 0.44, and a true distance modulus V(O) - M(V) = 11.65, equivalent to a distance of d = 2130 pc, were derived. So the cluster is placed within the Sagittarius arm. Its 'turn-off' point agrees with an age of (25.8 +/- 1.5) x 10 exp 6 yr while from core overshooting models it results to be 23 x 10 exp 6 yr old. A possible relation with the open cluster Cr 272 is briefly discussed.

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