| 释义 |
- References
{{Starbox begin
| name = HD 77912
}}{{Starbox observe
| epoch = J2000
| constell = Lynx
| ra = {{RA|09|06|31.76860}}[1]
| dec = {{DEC|+38|27|07.9756}}[1]
| appmag_v = 4.56[3]
}}{{Starbox character
| class = {{nowrap|G7 II Ba0.2}}[4]
| b-v = {{Val|1.037|0.003}}[5]
}}{{Starbox astrometry
| radial_v = {{Val|+16.6|0.2}}[5]
| prop_mo_ra = −27.653[1]
| prop_mo_dec = −15.055[1]
| parallax = 5.0045
| p_error = 0.1977
| parallax_footnote = [1]
| absmag_v = {{Val|−1.46|0.093}}[10]
}}{{Starbox detail
| source =
| mass = 4.60[11]
| radius = {{Val|33|5}}[3]
| luminosity = 1,168.35[5]
| gravity = 1.75[11]
| temperature = 4,899[11]
| metal_fe = −0.14[11]
| rotational_velocity =
| age_myr =
}}{{Starbox catalog
| names={{odlist | BD=+39° 2200 | FK5=1237 | HD=77912 | HIP=44700 | HR=3612 | SAO=61254 }}
}}{{Starbox reference
| Simbad = HD+77912
}}{{Starbox end}}HD 77912 is a single[18] star in the northern constellation of Lynx. It is visible to the naked eye with an apparent visual magnitude of 4.56.[3] The star is located 650 light years from the Sun, as determined from its annual parallax shift of {{Val|5.0|ul=mas}}.[1] It is moving further away with a heliocentric radial velocity of +16.6 km/s.[5] HD 77912 has a peculiar velocity of {{Val|23.1|2.9|1.1|u=km/s}}, which may mark it as a runaway star.[22]The stellar classification of HD 77912 is {{nowrap|G7 II Ba0.2}},[4] indicating it is a bright giant with a mild overabundance of Barium. It has 4.6[11] times the mass of the Sun and has expanded to 33[3] times the Sun's radius. The star is radiating 1,168[5] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,899 K.[11] References1. ^1 2 3 4 5 6 {{cite DR2}}
2. ^1 {{citation | title=A catalogue of multiplicity among bright stellar systems | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869 | date=2008 | doi=10.1111/j.1365-2966.2008.13596.x | arxiv=0806.2878 | bibcode=2008MNRAS.389..869E | postscript=. }}
3. ^1 2 3 4 5 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }}
4. ^1 {{citation | display-authors=1 | last1=Park | first1=Sunkyung | last2=Kang | first2=Wonseok | last3=Lee | first3=Jeong-Eun | last4=Lee | first4=Sang-Gak | title=Wilson-Bappu Effect: Extended to Surface Gravity | journal=The Astronomical Journal | volume=146 | issue=4 | pages=73 | year=2013 | doi=10.1088/0004-6256/146/4/73 | bibcode=2013AJ....146...73P | arxiv=1307.0592 | postscript=. }}
5. ^1 2 {{citation | postscript=. | title=Taxonomy of barium stars | journal=Astronomical Journal | last1=Lu | first1=Phillip K. | volume=101 | pages=2229 | year=1991 | bibcode=1991AJ....101.2229L | doi=10.1086/115845 }}
6. ^1 2 3 4 5 6 {{citation | postscript=. | title=The Lithium Abundances of a Large Sample of Red Giants | display-authors=1 | last1=Liu | first1=Y. J. | last2=Tan | first2=K. F. | last3=Wang | first3=L. | last4=Zhao | first4=G. | last5=Sato | first5=Bun'ei | last6=Takeda | first6=Y. | last7=Li | first7=H. N. | journal=The Astrophysical Journal | arxiv=1404.1687 | volume=785 | issue=2 | id=94 | pages=12 | date=April 2014 | doi=10.1088/0004-637X/785/2/94 | bibcode=2014ApJ...785...94L }}
7. ^1 {{citation | display-authors=1 | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | journal=Monthly Notices of the Royal Astronomical Society | volume=410 | issue=1 | pages=190–200 | date=January 2011 | doi=10.1111/j.1365-2966.2010.17434.x | bibcode=2011MNRAS.410..190T | arxiv=1007.4883 | postscript=. }}
8. ^1 2 3 4 {{citation | display-authors=1 | last1=Van Belle | first1=G. T. | last2=Creech-Eakman | first2=M. J. | last3=Hart | first3=A. | title=Supergiant temperatures and linear radii from near-infrared interferometry | journal=Monthly Notices of the Royal Astronomical Society | volume=394 | issue=4 | pages=1925 | year=2009 | doi=10.1111/j.1365-2966.2008.14146.x | arxiv=0811.4239 | bibcode=2009MNRAS.394.1925V | postscript=. }}
}}{{Stars of Lynx}} 6 : G-type bright giants|Lynx (constellation)|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |