Emission nebula
Sh2-18
Sh2-18
Catalogue data
- Right ascension
- 17h 48m 59.6s
- Declination
- -29° 15' 46"
- Size
- 4.0′ × 4.0′
- Position angle
- not available
- Magnitude
- not available
- Brightness class
- medium brightness
- Surface brightness
- not available
- Difficulty
- not available
- Suggested techniques
- SHO, HOO, NARROWBAND, OSC
- Data source
- VizieR VII/20 — Sharpless (1959)
Sharpless: circular, intermediate, medium brightness.
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