1978•Publications of the Astronomical Society of the PacificOpen access

Multicolor photometry of the ZET Scl open cluster.

Charles L. Perry, D. K. Walter, Douglas L. Crawford

Abstract

New multicolor photometry is presented for 23 stars in the vicinity of the Scl open cluster. A number of methods for the determination of intrinsic colors and absolute magnitudes were used to compute a mean cluster color excess of E(B - V) = 0=00 and a distance modulus of V0 - M = 6=9. Several criteria were employed in an examination of cluster membership; 16 of the 23 stars are probable cluster members. The metal deficiency found by Eggen is not confirmed. An age of approximately 50 x 106 yr was obtained for the aggregate. Key words: open cluster-interstellar reddening-south galactic pole

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Key concepts: Open cluster, Distance modulus, Photometry (optics), Physics, Astrophysics, Stars, Cluster (spacecraft), Astronomy