Messier 77 (M77)
December 3, 2024
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Messier 77 (M77) is an intriguing spiral galaxy roughly 45 million light years away in the Cetus constellation. M77 is the quintessential example of a so-called Seyfert galaxy. A Seyfert galaxy has a very bright center containing what astronomers call an active galactic nucleus. Such a nucleus emits X-rays and ultraviolet light that indicates activity powered by a supermassive black hole.
M77 also contains a central bar surrounded by areas of intense star formation. There is also a great deal of star formation going on in its spiral arms.
Image Capture
Location:
Deep Sky West
Camera:
Total integration: 32h 54m
Integration per filter:
- Lum: 8h 42m (174 × 180")
- R: 6h 27m (129 × 180")
- G: 6h 21m (127 × 180")
- B: 6h 24m (128 × 180")
- Hα: 5h (60 × 300")
Coordinates: 2h 42m 38s · +0° 1′ 46″
Moravian C5a-100M
Finding Chart
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Telescope
Planewave CDK12.5
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