SUPPORT THE WORK

GetWiki

Gamma Hydri

ARTICLE SUBJECTS
aesthetics  →
being  →
complexity  →
database  →
enterprise  →
ethics  →
fiction  →
history  →
internet  →
knowledge  →
language  →
licensing  →
linux  →
logic  →
method  →
news  →
perception  →
philosophy  →
policy  →
purpose  →
religion  →
science  →
sociology  →
software  →
truth  →
unix  →
wiki  →
ARTICLE TYPES
essay  →
feed  →
help  →
system  →
wiki  →
ARTICLE ORIGINS
critical  →
discussion  →
forked  →
imported  →
original  →
Gamma Hydri
[ temporary import ]
please note:
- the content below is remote from Wikipedia
- it has been imported raw for GetWiki
{{Short description|Variable star in the constrellation Hydrus}}{hide}Starbox begin
| name = Gamma Hydri
{edih}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Hydrus
| ra = {{RA|03|47|14.34062}}
| dec = {{DEC|−74|14|20.2686}}
| appmag_v = 3.26
}}{{Starbox character
| class = M1 III
| b-v = +1.62
| u-b = +1.98
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|+15.8|0.6}}
| prop_mo_ra = +50.85
| prop_mo_dec = +114.74
| parallax = 15.24
| p_error = 0.11
| parallax_footnote =
| absmag_v = −0.83
}}{{Starbox detail
| source =
| mass = 1.0
| radius = {{Val|62|1}}
| luminosity = 513
| temperature = 3499
| gravity = 0.84
| metal_fe = 0.0
| rotational_velocity =
| age_myr =
}}{hide}Starbox catalog
| names = {{odlist | B=γ Hyi | CD=−74° 276 | FK5= | HD=24512 | HIP=17678 | HR=1208 | SAO=256029 {edih}
}}{hide}Starbox reference
| Simbad = gam+Hyi
{edih}{{Starbox end}}γ Hydri, Latinised as Gamma Hydri, is a solitary, red-hued star in the constellation Hydrus. It has an apparent visual magnitude of 3.26, making it easily visible to the naked eye at night. Based upon an annual parallax shift of 15.24 mas as measured from Earth, the system is located about 214 light-years from the Sun.This is an evolved red giant star with a stellar classification of M1 III, and is most likely on the asymptotic giant branch of the HR diagram. It is a semiregular variable that pulsates between magnitudes 3.26 and 3.33, although its period is not known precisely. It has about the same mass as the Sun, but has expanded to around 62 times the Sun's radius. The star is radiating 513 times the Sun's luminosity from its enlarged photosphere at an effective temperature of {{val|3499|fmt=commas|ul=K}}.

References

{{reflist|refs={{citation
| title=Validation of the new Hipparcos reduction
| last1=van Leeuwen | first1=F.
| journal=Astronomy and Astrophysics
| volume=474 | issue=2 | pages=653–664 | date=2007
| arxiv=0708.1752 | bibcode=2007A&A...474..653V
| doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=. }}
{{citation
| title=Asymptotic giant branch stars near the sun
| last1=Eggen | first1=O. J. | postscript=.
| journal = The Astronomical Journal
| volume=104| pages=275 | year=1992
| doi=10.1086/116239 | bibcode=1992AJ....104..275E }}
{{citation | display-authors=1
| last1=Johnson | first1=H. L. | last2=Iriarte | first2=B.
| last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z.
| title=UBVRIJKL photometry of the bright stars
| journal=Communications of the Lunar and Planetary Laboratory
| volume=4 | issue=99 | year=1966
| page=99 | bibcode=1966CoLPL...4...99J | postscript=. }}
{{citation
| title=Michigan catalogue of two-dimensional spectral types for the HD stars
| volume=1 | last1=Houk | first1=Nancy | postscript=.
| location=Ann Arbor, Michigan
| publisher=Dept. of Astronomy, University of Michigan
| year=1979 | bibcode=1978mcts.book.....H }}
{{citation
| last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A.
| title=A catalogue of multiplicity among bright stellar systems
| journal=Monthly Notices of the Royal Astronomical Society
| volume=389 | issue=2 | pages=869–879 | date=September 2008
| doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E
| arxiv=0806.2878 | s2cid=14878976 | postscript=. }}
{{citation
| last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C.
| title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project
| journal=Astronomy & Astrophysics
| volume=546 | id=A61 | pages=14 | date=October 2012
| doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D
| arxiv=1208.3048 | s2cid=59451347 | postscript=. }}
{{citation
| title=Fundamental parameters of 16 late-type stars derived from their angular diameter measured with VLTI/AMBER
| last1=Cruzalèbes | first1=P. | last2=Jorissen | first2=A.
| last3=Rabbia | first3=Y. | last4=Sacuto | first4=S.
| last5=Chiavassa | first5=A. | last6=Pasquato | first6=E.
| last7=Plez | first7=B. | last8=Eriksson | first8=K.
| last9=Spang | first9=A. | last10=Chesneau | first10=O.
| journal=Monthly Notices of the Royal Astronomical Society
| volume=434 | issue=1 | pages=437–450 | date=September 2013
| doi=10.1093/mnras/stt1037 | bibcode=2013MNRAS.434..437C
| arxiv=1306.3288 | s2cid=49573767 | display-authors=1 | postscript=. }}
{{citation
| title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system
| journal=CDS/ADC Collection of Electronic Catalogues
| last1=Ducati | first1=J. R.
| volume=2237 | year=2002 | postscript=.
| bibcode=2002yCat.2237....0D }}
{{citation
| title=Long-term Photometry and Periods for 261 Nearby Pulsating M Giants
| last1=Tabur | first1=V. | last2=Bedding | first2=T. R. | author2-link=Tim Bedding
| last3=Kiss | first3=L. L. | last4=Moon | first4=T. T.
| last5=Szeidl | first5=B. | last6=Kjeldsen | first6=H.
| journal = Monthly Notices of the Royal Astronomical Society
| volume=400 | issue=4 | pages=1945–61 | date=2009
| doi=10.1111/j.1365-2966.2009.15588.x | arxiv=0908.3228
| bibcode=2009MNRAS.400.1945T | s2cid=15358380 | postscript=. }}
{{citation
| title=Mg II chromospheric radiative loss rates in cool active and quiet stars
| last1=Cardini | first1=D. | postscript=.
| journal=Astronomy and Astrophysics
| volume=430 | pages=303–311 | date=January 2005
| doi=10.1051/0004-6361:20041440 | bibcode=2005A&A...430..303C |arxiv = astro-ph/0409683 | s2cid=12136256 }}
SIMBAD
, gam Hyi, 2017-08-18, .,
}}{{Stars of Hydrus|state=collapsed}}

- content above as imported from Wikipedia
- "Gamma Hydri" does not exist on GetWiki (yet)
- time: 12:34am EDT - Sat, May 18 2024
[ this remote article is provided by Wikipedia ]
LATEST EDITS [ see all ]
GETWIKI 23 MAY 2022
GETWIKI 09 JUL 2019
Eastern Philosophy
History of Philosophy
GETWIKI 09 MAY 2016
GETWIKI 18 OCT 2015
M.R.M. Parrott
Biographies
GETWIKI 20 AUG 2014
CONNECT