J/MNRAS/224/61 J/MNRAS/224/61 NGC 6649 UBV photometry A R Walker C D Laney Mon. Not. R. Astron. Soc. 224 61 1987 1987MNRAS.224...61W Clusters, open Photometry, CCD Stars, variable A colour magnitude diagram to V=20 is given for 395 stars in the heavily reddened open cluster NGC 6649. The absorption-corrected distance modulus is 11.00+/-0.15mag (1585+/-110pc) assuming R(OB)=3.27+/-0.10 for NGC 6649 and based on a ZAMS with zero point referenced to a Pleiades distance modulus of 5.56mag. The range of reddening over the 5arcmin diameter of the cluster is {DELTA}E(B-V)=0.3mag. NGC 6649 contains the double mode Cepheid V367 Sct, which has <M_V_>=-3.80+/-0.06 and <B_0_>-<V_0_>=0.58+/-0.02.

NGC 664918 33.5 -10 24

No Sequential number --- DRA Offest in right ascension number=1 Coordinates with respect to star No. 19, in the sense that any star to the NE of star No. 19 has positive DRA and DDE. arcsec DDE Offest in declination number=1 Coordinates with respect to star No. 19, in the sense that any star to the NE of star No. 19 has positive DRA and DDE. arcsec Vmag V magnitude mag B-V B-V colour index mag U-B U-B colour index mag o_Vmag Number of observation in V magnitude --- o_Bmag Number of observation in B magnitude --- o_Umag Number of observation in U magnitude --- Marie-Jose Wagner, Patricia Bauer CDS 1997Jun19 UNKNOWN UNKNOWN Prepared via OCR at CDS. J_MNRAS_224_61.xml