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| Nebula | |
|---|---|
.png) Sh 2-312 seen very faintly,Gamma Pyxidis in lower-right corner | |
| Observation data:J2000epoch | |
| Right ascension | 08h 59m 12s |
| Declination | −25° 41′ 00″[1] |
| Apparent magnitude (V) | 17.82 |
| Apparent dimensions (V) | 12° x 3° |
| Constellation | Pyxis |
| Designations | LBN 1077 |
| See also:Lists of nebulae | |
Sh 2-312 is anebula in the southern constellation ofPyxis. It is very large and diffuse, making it largely ignored and unstudied outside of its relation to theGum Nebula. Sh 2-312 is located approximately 56 parsecs away fromRCW 22,[2] another nebula postulated to be a part of the larger Gum Nebula,[3] which is itself estimated to be approximately 300 parsecs in width based onangular diameter approximation.[4][5] It responds well toHydrogen-alpha filters; however, it requires extended exposure time to become visible during observation.[6]
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