UBV photometry of TR 24 and its relation to SCO OB1

Details UBV photometry of TR 24 and its relation to SCO OB1 UBV photometry of TR 24 and its relation to SCO OB1

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...57..205h&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 57, Aug. 1984, p. 205-212.

Astronomy and Astrophysics

Astrophysics

18

Astronomical Photometry, Star Clusters, Ubv Spectra, B Stars, Color-Color Diagram, Interstellar Extinction, O Stars, Photographic Plates, Stellar Color, Stellar Magnitude

Scientific paper

In an area of 1.3 x 0.3 deg centered on Tr 24 UBV photometry down to about 14m has been obtained. From color-magnitude and color-color diagrams a distance of 2300 pc, a foreground reddening of Av = 1.10m and a cluster with an age of less than 10 to the 7th yr is derived. Tr 24 and Sco OB1 form one large cluster containing many pre-main sequence stars. The existence of a small (8 x 3 pc) subgroup is pointed out which contains more than 20 stars and could be a T Tau-association embedded in Tr 24.

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