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| Catalogue and alternative designations | HaTr
3, PK333-4.1
|
| Type | Planetary Nebula |
| Position | 16 39 37.4, -52 49 13 |
| Constellation | Norma |
| Camera and Telescope | STLXL6303E and 36.8 cm Ritchey Chretien |
| Focal Ratio | F9 |
| Exposure Details | HaOIIILRGB image (Hydrogen Alpha and Oxygen III supplemented with RGB stars). Ha = 200 minutes, OIII = 140 minutes, L = R = G = B = 30 minutes. All unbinned. |
| Description | HaTr3
is one of 14 low surface
brightness planetary nebulae
cataloged by Herbert Hartl and
Sue Tritton in 1985. The
diameter is 42 arcseconds and
the photographic magnitude is
16.1. The colour appears bluish
because OIII emission
predominates. This image is a
full resolution crop.
|