Delta Canis Majoris
Sign in to saveAlso known as Wezen, 25 Canis Majoris, HD 54605, 25 CMa, δ CMa, δ Canis Majoris, SACS 156, ROT 1146
star
Key facts
- Constellation
- Canis Major
- Right ascension
- 07 08 23.48608
- Declination
- −26 ° 23 ′ 35.5474 ″
- Spectral type
- F8 Ia
- U b color index
- +0.584
- B v color index
- +0.67
- Variable type
- Suspected
via Wikipedia infobox
Wikidata facts
- Constellation
- Canis Major
- Variable-star type
- Alpha Cygni variable
- Image
- Canis major constellation map.png
Show 17 more facts
- catalog code
- UBV M 40652
- spectral class
- F8p
- stellar rotational velocity
- 13.4
- apparent magnitude
- 0.39
- metallicity
- 0.24
- right ascension
- 107.09785021417
- declination
- -26.39319957889
- effective temperature
- 6380
- radial velocity
- 34.7
- epoch
- J2000.0
- parallax
- 2.03
- surface gravity
- 4.9
- luminosity
- 82000
- absolute magnitude
- -6.86
- right ascension component of proper motion
- -4
- declination component of proper motion
- 3
- age estimated by a dating method
- 12
Sources (3)
via Wikidata · CC0
~4 min read
Encyclopedic overview
Delta Canis Majoris is a supergiant star in the constellation of Canis Major. It is formally named Wezen (/ˈwiːzən/); Delta Canis Majoris is its Bayer designation. At an apparent magnitude of +1.83, it is the third-brightest star in the constellation. Based on parallax measurements, it is located at a distance of approximately 1,600 light years. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.
Observation
Excerpted from Wikipedia’s “Delta Canis Majoris” article, available under the CC BY-SA 4.0 licence.