HD 21840
HD 21840 is found in the constellation Eridanus. HD 21840 is a yellow-orange star and is categorized as a very cool star.
- SAO:
- 149000
- HD:
- 21840
- DM:
- BD-19 693
- Right Ascension:
- 3h 30m 37.511s
- Declination:
- -19° 5' 3.04"
- Magnitude:
- 8.9
- Spectral Type:
- K2
- Constellation:
- Eridanus