or stars in the region around the open cluster NGC6530, cluster memberships are calculated based on the maximum likelihood principle using proper motions obtained from photographic plates acquired with the 40 cm refraction telescope at Shanghai Astronomical Observatory. Analyses show that the membership ...
Finder Chart for NGC 663 (credit:- freestarcharts)Finder Chart for NGC 663 - pdf format (credit:- freestarcharts)NGC 663 Data TableNGC 663 Caldwell 10 Object Type Open Cluster Constellation Cassiopeia Distance (light-years) 7,000 Apparent Mag. +7.1...
star c Pup; not a true cluster-NGC 2575 Galaxy CNC 12.7 14.2 2.3' Sc NGC 2452 Pln Neb PUP 12.6 9.4 22'' 4(3) 17.5 -NGC 2577 Galaxy CNC 12.4 13 1.8' SO H II 259 NGC 2453 Opn CL PUP 8.3 - 5' I 2 p 30 9.5 -NGC 2578 Galaxy PUP 12.6 13.4 2.2' SBO-a H III 902 NGC ...
【星系吧】NGC天体..NGC 1是一个漩涡星系,在飞马座。直径约90,000光年,比银河系小。NGC 11860年使用时列表显示,这个星系有所有星系最低的经度,但是现在它已不是原来的位置,这个星系不再有NGC星系最低的经度
In the present study, we have used Deep CCD images of the extremely young open star cluster NGC 6611, up to a limiting magnitude ofV∼22.86 mag inV,RandIpassbands. The resulting color-magnitudeV; (V–I) diagram as well as their radial density profiles has been determined. Using 2MASS ...
The Open Star Cluster NGC 1245 has a distance of about 2.5 kpc in the direction of the constellation Perseus. Like in NGC 2194 most bright stars of the cluster show a slightly blue color. These are the "normal" hydrogen core burning stars with their hot surface temperature. But there are...
The rich SMC star cluster NGC419 has recently been found to present both a broad main sequence turn-off and a dual red clump of giants, in the sharp colour-magnitude diagrams (CMD) derived from the High Resolution Channel of the Advanced Camera for Surveys on board the Hubble Space ...
The bright globular cluster M 10 has a distance of 7.6 kpc in the direction of the constellation Ophiuchus. With its age of about 17 Gyr it belongs to a population of particular old globular star clusters. From Colors to Astrophysics:...
star. NGC 6934 can be partially resolved with a 300mm (12-inch) telescope. At about 200x magnification dozens of stars are revealed, especially on nights of good seeing. The cluster appears compressed and grainy. A very large 450mm (18-inch) scope at high powers will resolve some of ...