IC 1644
IC 1644 is a H II region located in the constellation Tucana. Some key stats include:
| IC: | IC 1644 |
| Type: | H II region |
| Constellation: | Tucana |
| V-magnitude (visual): | 11.7 |
| J-magnitude (IR): | 12.0 |
| H-magnitude (IR): | |
| K-magnitude (IR): | 11.9 |
| Right Ascension: | 01:09:13.01 |
| Declination: | -73:11:38.80 |
| Major axis: | 0.8 ' |
| Minor axis: | 0.65 ' |
| Angle (major axis): | 40° |
| Radial velocity: | 166 km/s |
| Redshift: | 0.000554 |
Right Ascension units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula