Mensa
Table Mountain. Genitive Mensae, abbreviated Men. Introduced by Lacaille.
Area
153.48 sq°
75 of 88 by size
Brightest star
α Mensae
magnitude 5.09
Best seen
December
on the meridian at midnight
Visible from
20°N to 90°S
some part above the horizon
Where it is
| Measure | Value |
|---|---|
| Centre | 5h 29m, −77.5° |
| Declination range | −85.2° to −69.8° |
| Naked-eye stars | 22 to magnitude 6.5, 0 to magnitude 3 |
| Borders | Chamaeleon, Dorado, Hydrus, Octans, Volans |
Principal stars
Mensa has no star brighter than magnitude 4, so its five brightest are listed instead.
| Star | Magnitude | HR |
|---|---|---|
| α Mensae | 5.09 | 2261 |
| γ Mensae | 5.19 | 1953 |
| β Mensae | 5.31 | 1677 |
| θ Mensae | 5.45 | 2689 |
| η Mensae | 5.47 | 1629 |
Deep sky
No object in Mensa carries a Messier number or a common name. It contains catalogued objects all the same, identified by number only.
My Sky
Rise, highest and set over your place, for any night: Mensa
Further info
Sources
Principal stars: Bright Star Catalogue
Deep sky: NGC 2000.0
Area and borders: IAU constellation boundaries
