| Date 2021/12/29 et 2022/01/02 Observation place New Mexico |
Technical
| Telescope | Takahashi Epsilon 250 - 10 “, 850mm FL @ f / 3.4 |
| Mount | Paramount ME |
| Imaging camera | SBIG ST10XME - Non Anti Bloomin Gate (NABG) regulated at -10o Celsius |
| Image type | L (RGB) (Vs for synghetic green) |
| Exhibition | Luminance (10 x 5' bin 1×1), R (10 x 1' bin 2×2) and B (10 x 1' bin 2×2) |
| Pretreatment | Maxim DL |
| Treatment | Photoshop and PixInsight |
| Specific treatment | Create a synthetic green image |
Object description
| Object type | reflection nebula |
| Constellation | Orion |
| Visual magnitude | 8,3 |
| Surface gloss | 12,24 |
| Distance | 1600 light years |
| Diameter | 3,5 light years |
| Dimension seen from Earth | 8 ′ x 6 ′ of arc |
| M78 is a reflection nebula located in the constellation Orion. It is an interstellar dust cloud illuminated by young stars. It is 1600 light years from Earth and its diameter is 3,5 light years. It was discovered in 1780 by Pierre Méchain. It is the brightest diffuse nebula in the local group. Charles Messier added it to his catalog on December 17 of the same year. Visually, in low light pollution skies, M78 looks like a faint comet. With binoculars it is just visible as a very small speck. Small instruments already allow you to see it very bright, and reveal the stars that highlight it. In my image, which was taken in a sky without light pollution (in New Mexico), we see the M78 nebula in the center of the image. We can also see the very faint dark blue nebulae surrounding the nebula. We also see the NGC2067 nebula to the right of the M78 nebula which is separated by a dark dust cloud. We also see the NGC2071 nebula at the top of the image. |
| Richard Beauregard Sky Astro - CCD My impression "We cannot be alone in this gigantic universe" |