
collinder 140

collinder 140 canis mejar nakshatr mein sitaaron kaa ack nikat khula samooh haye. ise pahali baar 1751 mein francisi khagolshastri nicolaus luis dee lackell dwara soochibaddh kiya gayaa thaa, jinhone ise ack "aspasht taaraa samooh" key roop mein varnit kiya thaa. ise 1931 mein swedish khagolshastri prati collinder dwara phir seey soochibaddh kiya gayaa thaa. (1980) ise "ack yuva vistaarit samooh" key roop mein varnit karein aur dhyaan dein kii yeh spasht roop seey ack samooh naheen haye aur isake bajaay kewal sitaaron kaa ack samooh hoe sakata haye joe ack saath baney hain.
nau samooh sadasyon key sanyukt samaantar maap key aadhar parr, iss samooh mein ack anumaanit samaantar hotaa haye, joe doori key mapank yaa doori key barabar hotaa haye. samooh kaa ghanatva 0.01 saur dravyamaan prati ghana parsek haye; soorya key paas sitaaron key ghanatva seey lagbhag doguna. yeh lagbhag 2 karod varsh purana haye, aur hoe sakata haye kii usee antartarkiya baadal seey banaaya gayaa hoe jisane ngc 2516 aur ngc 2547 kaa nirmaan kiya hoe.

