Our website is made possible by displaying online advertisements to our visitors.
Please consider supporting us by disabling your ad blocker.
Gamma Corvi
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Corvus |
| Right ascension | 12h 15m 48.37081s[1] |
| Declination | –17° 32′ 30.9496″[1] |
| Apparent magnitude (V) | 2.585[2] |
| Characteristics | |
| Spectral type | B8 III[3] |
| U−B color index | –0.344[2] |
| B−V color index | –0.111[2] |
| Astrometry | |
| Radial velocity (Rv) | -4.2[4] km/s |
| Proper motion (μ) | RA: –158.61[1] mas/yr Dec.: +21.86[1] mas/yr |
| Parallax (π) | 21.23 ± 0.20 mas[1] |
| Distance | 154 ± 1 ly (47.1 ± 0.4 pc) |
| Absolute magnitude (MV) | −0.79[5] |
| Details | |
| γ Crv A | |
| Mass | 4.2+0.4 −0.3[6] M☉ |
| Radius | 4.086[7] R☉ |
| Luminosity | 301±5[7] L☉ |
| Surface gravity (log g) | 3.5[8] cgs |
| Temperature | 12,000[8] K |
| Rotation | 5.938[7] days |
| Rotational velocity (v sin i) | 35[7] km/s |
| Age | 160+40 −30[6] Myr |
| γ Crv B | |
| Mass | 0.8[9] M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gamma Corvi (γ Corvi, abbreviated Gamma Crv, γ Crv) is a binary star and the brightest star in the southern constellation of Corvus, having an apparent visual magnitude of 2.59.[11] The system's two components are designated Gamma Corvi A (officially named Gienah /ˈdʒiːnə/, traditionally the name of the system)[12][13] and Gamma Corvi B, whose magnitude is 9.7 and which is 1.1 arcseconds away from Gamma Corvi A.[14] The distance to this system has been measured directly using the parallax technique, yielding an estimated 154 light-years (47 parsecs) from the Sun.[1]
- ^ a b c d e f Cite error: The named reference
aaa474_2_653was invoked but never defined (see the help page). - ^ a b c Cite error: The named reference
csaao8was invoked but never defined (see the help page). - ^ Cite error: The named reference
houk1978was invoked but never defined (see the help page). - ^ Cite error: The named reference
gcsrvwas invoked but never defined (see the help page). - ^ Cite error: The named reference
Anderson2012was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
apj736_2_89was invoked but never defined (see the help page). - ^ a b c d Cite error: The named reference
TESSwas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
aaa320_580was invoked but never defined (see the help page). - ^ Cite error: The named reference
aj133_2_545was invoked but never defined (see the help page). - ^ Cite error: The named reference
SIMBADwas invoked but never defined (see the help page). - ^ Kaler, James B. (Jim) (2004), "Gienah Corvi", Stars, University of Illinois, retrieved 18 March 2015
- ^ Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
- ^ "Naming Stars". IAU.org. Retrieved 16 December 2017.
- ^ "WDS 12158-1733 RBR 5 (Gienah)". www.stelledoppie.it. Retrieved 2024-02-01.
Previous Page Next Page
