NGC 3918
Blue Planetary
 
NGC 3918 is a planetary nebula located in the constellation of Centaurus. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 3918:
| NGC: | NGC 3918 | 
| Common name: | Blue Planetary | 
| Type: | planetary nebula | 
| Constellation: | Centaurus | 
| V-mag (visual): | 8.1 | 
| B-mag (blue): | 8.4 | 
| Right Ascension: | 11:50:17.95 | 
| Declination: | -57:10:56.40 | 
| Major axis: | 0.32 ' | 
| Radial velocity: | -16 km/s | 
| Redshift: | -0.00005 | 
| PN central star ID: | HD 102854 | 
| PN star B-mag: | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS