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Beta Hydri
*** Shopping-Tip: Beta Hydri
{{Starbox begin
| name=Beta Hydri }}
{{Starbox observe
| epoch=J2000
| ra=00
h 25
m 45.1
s
| dec=-77° 15′ 15″
| appmag_v=2.80
| constell=
Hydrus }}
{{Starbox character
| class=G2 IV
| b-v=0.61
| u-b=0.11
| variable=Suspected }}
{{Starbox astrometry
| radial_v=22.9
| prop_mo_ra=2,220.12
| prop_mo_dec=324.37
| parallax=133.86
| p_error=0.51
| dist_ly=24.35
| dist_pc=7.47
| absmag_v=3.43 }}
{{Starbox detail
| mass=1.1
| radius=1.46
| luminosity=3.53
| temperature=5,750
| metal=49-100%
| rotation=3.3 km/sec. (~29 days)
| age=6 × 10
9 }}
{{Starbox catalog
| names=
Henry L. Giclas catalogue Gl 19,
Harvard Revised catalogue HR 98,
Cordoba Durchmusterung CD -77°15,
Henry Draper catalogue HD 2151,
Luyten Half-Second catalogue LHS 6,
Luyten Two-Tenths catalogue LTT 226,
General Catalogue of Trigonometric Parallaxes GCTP 69,
Smithsonian Astrophysical Observatory SAO 255670, CP(D)-77 16, FK5 11, LPM 22, LFT 43,
Hipparcos catalogue HIP 2021. }}
{{Starbox end}}
'''Beta Hydri''' (β Hyi / β Hydri) is a
star in the
constellation Hydrus (Note that Hydrus is not the same as
Hydra (constellation) Hydra).
It is about 24.4
light years away from
Earth. Beta Hydri is often studied because it might give insights on what might happen to our
Sun in the next 2.5 billion years.
At around 150 B.C., this star was two degrees away from the southern celestial pole. It is currently the nearest relatively bright star to the southern pole.
{{star-stub}}
See also
*
List of nearest bright stars
External links
* {{cite web |
title=Beta Hydri |
work=SolStation |
url=http://www.solstation.com/stars/bethydri.htm |
accessdate=November 3 |
accessyear=2005}}
* {{cite web |
title=Beta Hydri |
work=Dr. Jim Kaler |
url=http://www.astro.uiuc.edu/~kaler/sow/betahyi.html |
accessdate=March 15 |
accessyear=2005}}
-
Stellar Activity - Beta Hydri
Category:Bayer objects Hydri, Beta
Category:Hydrus constellation
Category:Yellow dwarfs
de:Beta Hydri
sk:Beta Hydri
fi:Beta Hydri
