Cursa
Star Cursa (β Eridani) |
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AladinLite | |||||||||||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Eridanus | ||||||||||||||||
Right ascension | 05 h 07 m 50.99 s | ||||||||||||||||
declination | -05 ° 05 ′ 11.2 ″ | ||||||||||||||||
Apparent brightness | 2.78 likes | ||||||||||||||||
Typing | |||||||||||||||||
B − V color index | +0.13 | ||||||||||||||||
U − B color index | +0.10 | ||||||||||||||||
R − I index | +0.08 | ||||||||||||||||
Spectral class | A3 IIIvar | ||||||||||||||||
Astrometry | |||||||||||||||||
Radial velocity | (−6.0 ± 0.8) km / s | ||||||||||||||||
parallax | (36.50 ± 0.42) mas | ||||||||||||||||
distance | (89.4 ± 1.0) ly (27.40 ± 0.32) pc |
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Visual absolute brightness M vis | +0.59 mag | ||||||||||||||||
Proper movement | |||||||||||||||||
Rec. Share: | (−82.82 ± 0.49) mas / a | ||||||||||||||||
Dec. portion: | (-75.39 ± 0.31) mas / a | ||||||||||||||||
Physical Properties | |||||||||||||||||
Other names and catalog entries |
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Cursa (from Arabic كرسي الجوزاء, DMG kursī al-ǧauzāʾ ' chair [of Orion ]') is a proper name of the star β Eridani (Beta Eridani). Cursa has an apparent magnitude of 2.8 mag and marks the northeastern end of the constellation Eridanus . The spectral type of Cursa is A3 IIIvar. Cursa is 90 light years from Earth. Other names: Dhalim, El Dhalim.
The IAU Working Group on Star Names (WGSN) has the proper name on 20 July 2016 Cursa defined as standardized proper name for this star.
Individual evidence
- ↑ a b c Hipparcos catalog (ESA 1997)
- ↑ a b c Bright Star Catalog
- ↑ Pulkovo radial velocities for 35493 HIP stars
- ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)
- ↑ Bulletin of the IAU Working Group on Star Names, No. 1, July 2016. (PDF) Retrieved November 9, 2016 (English, 184 KiB).