Trumpler 31
DSS image of Trumpler 31
Overlaid DSS image of Trumpler 31, 30' x 30' with north at top and west to the right

Aladin viewer for the region around Trumpler 31
Tr 31, Collinder 357, Cr 357, C 1756-281, Lund 798, OCl 9.0

Type  Open Cluster
Magnitude  9.8
Size  5'
Right Ascension  17h 59'  (2000)
Declination  28° 12' S
Constellation  Sagittarius
Classification  III2p
Observing Notes

Andrew Cooper
Aug 15, 2020    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x

A modest 5' clump of stars in a very rich galactic starfield, a 3' equilateral triangle of 10th magnitude stars embedded in a faint haze, faint, partially resolved
Other Data Sources for Trumpler 31
Nearby objects for Trumpler 31
Credits...

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

A complete list of credits and sources can be found on the about page

Trumpler 31