Yadav, R. K. S; Kumar, B; Subramaniam, A; Sagar, R; Mathew, B
(Royal Astronomical Society, 2008-11)
We present UBVRI CCD photometry in the region of the open clusters NGC 637 and 957. The radii are found to be 4.2 and 4.3 arcmin. Their reddenings E(B - V) are 0.64 +/- 0.05 and 0.71 +/- 0.05 mag and their distances, from ...