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Sh2-221
Sh2-221 — Supernova Remnant
Supernova Remnant
· AurigaAdvanced
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Observing: Tonight · 8:00 PM–5:00 AM
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Target information
- Object type
- Supernova Remnant
- Constellation
- Auriga
- Right ascension
- 5h 02m 00s
- Declination
- +46° 45′ 00″
- Magnitude
- Not recorded
- Angular size
- 120′ × 90′
- Surface brightness
- Not recorded
- Difficulty
- Advanced
- Best months
- October, November, December, January, February, March
- Catalog IDs
- Sh2-221;SNR G160.9+02.6;HB9
About this target
Very faint supernova remnant HB9 in Auriga. Large low-surface-brightness shell best suited to wide-field narrowband imaging.
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