Alpha Pegasi
Sign in to saveAlso known as Markab, Alpha Peg, α Peg, α Pegasi, * alf Peg, alf Peg, 54 Peg, 54 Pegasi
star in the constellation Pegasus
Key facts
- Constellation
- Pegasus
- Right ascension
- 23 04 45.65345
- Declination
- +15 ° 12 ′ 18.9617 ″
- Spectral type
- B9V, B9.5III, B9III A0 IV
- U b color index
- −0.06
- B v color index
- −0.04
- Variable type
- suspected
via Wikipedia infobox
Wikidata facts
- Instance of
- star
- Part of
- Great Square of Pegasus
- Constellation
- Pegasus
- Distance from Earth
- 140
- Image
- Pegasus constellation map.png
Show 19 more facts
- catalog code
- ALS 16176
- Commons category
- Orion (constellation)
- spectral class
- B9.5VSB:,V
- stellar rotational velocity
- 100
- different from
- Mount Markab
- apparent magnitude
- 2.503658
- right ascension
- 346.190222691
- declination
- 15.205267148
- effective temperature
- 11000
- radial velocity
- -2.5
- parallax
- 23.36
- epoch
- J2000.0
- luminosity
- 160
- absolute magnitude
- -0.57
- right ascension component of proper motion
- 58
- declination component of proper motion
- -39
- age estimated by a dating method
- 200
- surface gravity
- 10000
- metallicity
- 0
via Wikidata · CC0
~2 min read
Encyclopedic overview
Alpha Pegasi (α Pegasi, abbreviated Alpha Peg, α Peg), formally named Markab /ˈmɑːrkæb/, is the third-brightest star in the constellation of Pegasus and one of the four stars in the asterism known as the Great Square of Pegasus.
Properties
Excerpted from Wikipedia’s “Alpha Pegasi” article, available under the CC BY-SA 4.0 licence.