Trumpler 16

Trumpler 16
The inner region of the Carina Nebula as seen in near-infrared. Trumpler 16 is the cluster of stars at the left, around Eta Carinae (the brightest star in the image).
Observation data (J2000 epoch)
Right ascension	10h 45m 10s[1]
Declination	−59° 43′ 00″[1]
Distance	9,270 ly (2,842 pc)[1]
Apparent magnitude (V)	5.0[1]
Physical characteristics
Other designations	Cr 234, C 1043-594, Cl VDBH 105, OCl 829.0, [KPR2004b] 265, [KPS2012] MWSC 1850[1]
Associations
Constellation	Carina
See also: Open cluster, List of open clusters

Trumpler 16 (Tr 16) is a massive open cluster that is home to some of the most luminous stars in the Milky Way galaxy. It is situated within the Carina Nebula complex in the Carina–Sagittarius Arm, located approximately 9,270 ly (2,842 pc) from Earth.^[1] The cluster has one star visible to the naked eye from the tropics southward, Eta Carinae.