RSGC1とは 意味・読み方・使い方

RSGC1 is a young massive open cluster belonging to the Milky Way galaxy. It was discovered in 2006 in the data generated by several infrared surveys. The only members of the cluster that are currently identified are 14 red supergiants—young massive stars undergoing helium burning in their cores. The cluster is located in the constellation Scutum at the distance of about 6.6 kpc from the Sun. It is likely situated at the intersection of the northern end of the Long Bar of the Milky Way and the inner portion of the Scutum–Centaurus Arm—one of its two major spiral arms.