Dreyer's description: Cl, vF, pL, vRi, vC st 15...18
Cross Identifications: GC 4648, h 2110, H 6. 24.
| Right Ascension: | 21 : 12.9 (hours : minutes) | 
|---|---|
| Declination: | +42 : 29 (degrees : minutes) | 
| Apparent Magnitude: | 11. p | 
| Apparent Diameter: | (arc minutes) | 
Please type in the NGC number (number only, or preceded by "N" or "NGC") or the IC number preceded by "I" or "IC", or the Messier number preceded by "M".