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Abell 21
Abell 21 — Medusa Nebula
Planetary Nebula
· GeminiAdvanced
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Observing: Tonight · 8:00 PM–5:00 AM
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Target information
- Object type
- Planetary Nebula
- Constellation
- Gemini
- Right ascension
- 7h 29m 03s
- Declination
- +13° 14′ 49″
- Magnitude
- Not recorded
- Angular size
- 10.25′
- Surface brightness
- Not recorded
- Difficulty
- Advanced
- Best months
- December, January, February, March, April
- Catalog IDs
- Abell 21;PN A66 21;Sh2-274;PN G205.1+14.2;PK 205+14 1
About this target
Large evolved planetary nebula in Gemini. SIMBAD lists a 10.25 arcmin angular size.
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