Dreyer's description: F, vL, vmE, ** att
Cross Identifications: GC 4561, H 4. 72. Crescent Nebula .
| Right Ascension: | 20 : 12.0 (hours : minutes) |
|---|---|
| Declination: | +38 : 21 (degrees : minutes) |
| Apparent Magnitude: | |
| Apparent Diameter: | 20. (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".