R Doradus
Sign in to saveAlso known as P Doradus, HD 29712, HR 1492, R Dor, P Dor, V* R Dor, GCRV 2726, HIC 21479
variable star in the constellation Dorado
Key facts
- Constellation
- Dorado
- Right ascension
- 04 36 45.59127
- Declination
- −62 ° 04 ′ 37.7974 ″
- Apparent magnitude v
- 4.78 – 6.32
- Evolutionary stage
- AGB
- Spectral type
- M8III:e
- Apparent magnitude j
- −2.6
- Apparent magnitude k
- −4.2
- U b color index
- +0.86
- B v color index
- +1.58
- Variable type
- SRb
via Wikipedia infobox
Wikidata facts
- Instance of
- semiregular variable star
- Constellation
- Dorado
- Image
- R Doradus ESO.jpg
Show 11 more facts
- catalog code
- WDS J04368-6205A
- spectral class
- Mc
- right ascension
- 69.189963636
- declination
- -62.077165937
- apparent magnitude
- -3.85
- Commons category
- R Doradus
- radial velocity
- 26.1
- parallax
- 18.31
- epoch
- J2000.0
- right ascension component of proper motion
- -54
- declination component of proper motion
- -81
Sources (1)
via Wikidata · CC0
~4 min read
Encyclopedic overview
R Doradus (HD 29712 or P Doradus) is a red giant variable star in the far-southern constellation Dorado, close to the border with Reticulum. Its distance from Earth is 178 light-years (55 parsecs). Having a uniform disk diameter of 57±5 mas, it is thought to be the extrasolar star with the largest apparent size as viewed from Earth.
Variability
Excerpted from Wikipedia’s “R Doradus” article, available under the CC BY-SA 4.0 licence.