| 词条 | Gliese 408 |
| 释义 |
| name = Gliese 408 }}{{Starbox observe | epoch = J2000 | constell = Leo | ra = {{RA|10|00|04.25686}}[1] | dec = {{DEC|+22|49|58.6491}}[1] | appmag_v=10.020[2] }}{{Starbox character | class = M2.5V[4] |b-v=+1.55[3] |u-b=+1.22[3] |v-r=+1.08[3] |r-i=+1.31[3] }}{{Starbox astrometry | radial_v=3.15[4] | prop_mo_ra=-427.01[1] | prop_mo_dec=-281.82[1] | parallax=150.10 | p_error=1.70 | parallax_footnote=[1] | absmag_v=10.82[3] }}{{Starbox detail |mass=0.406 ± 0.007[5] |radius=0.43[6] |luminosity_visual=0.0037[16] |metal_fe=-0.14[5] |temperature=3530[7] |gravity=5.0[7] |rotational_velocity=<2.3[5] }}{{Starbox catalog | names=HIP 53767, Gliese 408, LTT 12942, LHS 6193, Ross 104 }}{{Starbox reference |Simbad=GJ+408 |ARICNS=00834 }}{{Starbox end}}Gliese 408 is a star located 21.6 light years from the Solar System, located in the constellation of Leo. The stars nearest to Gliese 408 are Gliese 402, at 6.26 light years, and AD Leonis, at 6.26 light years.[8] Gliese 408 is a red dwarf with a spectral type of M2.5V.[7] Much dimmer than the Sun, it has a luminosity of only 0.37% compared to the Sun,[8] but still it is much more luminous than other red dwarf stars, like Proxima Centauri. Its effective temperature is about 3400 to 3500 K;[7] its mass is about 41% compared to the Sun,[5] and its radius is about 43% that of the Sun.[6] Its rotational velocity is at most 2.3 km/s. No evidence of a circumstellar disk has been found around Gliese 408.[9] References1. ^1 2 3 4 {{cite journal|title=Validation of the new Hipparcos reduction|url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL|author1=van Leeuwen, F.|display-authors=etal|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 }} {{Stars of Leo}}{{reddwarf-star-stub}}2. ^{{cite simbad|title=GJ 408}} 3. ^1 2 3 4 {{cite web|title=ARICNS 4C00834|url=http://wwwadd.zah.uni-heidelberg.de/datenbanken/aricns/cnspages/4c00834.htm|work=ARICNS|accessdate=23 January 2017}} 4. ^{{cite journal|author1=Nidever, David L.|display-authors=etal|date=2013|title=Radial Velocities for 889 Late-Type Stars|journal=The Astrophysical Journal Supplement Series|volume=141|issue=2|pages=503–522|bibcode=2002ApJS..141..503N|doi=10.1086/340570|arxiv=astro-ph/0112477}} 5. ^1 2 3 {{cite journal|author1=Jenkins, J. S.|author2=Ramsey, L. W.|author3=Jones, H. R. A.|author4=Pavlenko, Y.|author5=Gallardo, J.|author6=Barnes, J. R.|author7=Pinfield, D. J.|title=Rotational Velocities for M Dwarfs|year=2009|journal=The Astrophysical Journal|volume=704|issue=2|pages=975–988|bibcode=2009ApJ...704..975J|doi=10.1088/0004-637X/704/2/975|arxiv=0908.4092}} 6. ^1 {{cite journal|display-authors=1|author1=Pasinetti Fracassini, L. E.|author2=Pastori, L.|author3=Covino, S.|author4=Pozzi, A.|title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics|journal=Astronomy & Astrophysics|volume=367|pages=521–24|date=2001|bibcode=2001A&A...367..521P|doi=10.1051/0004-6361:20000451|arxiv=astro-ph/0012289}} 7. ^1 2 3 4 {{cite journal|author1=Lépine, Sébastien|display-authors=etal|date=2013|title=A Spectroscopic Catalog of the Brightest (J < 9) M Dwarfs in the Northern Sky|journal=The Astronomical Journal|volume=145|issue=4|bibcode=2013AJ....145..102L|doi=10.1088/0004-6256/145/4/102|arxiv=1206.5991}} 8. ^1 2 {{cite web|url=http://www.stellar-database.com/Scripts/search_star.exe?Catalog=Gl&CatNo=408|title=Catalogue Astrographique +23°468-46|work=The Internet Stellar Database}} 9. ^{{cite journal|author1=Lestrade, J.-F.|author2=Wyatt, M. C.|author3=Bertoldi, F.|author4=Dent, W. R. F.|author5=Menten, K. M.|title=Search for cold debris disks around M-dwarfs|year=2006|journal=Astronomy and Astrophysics|volume=460|issue=3|pages=773–741|bibcode=2006A&A...460..733L|doi=10.1051/0004-6361:20065873|arxiv=astro-ph/0609574}} 3 : M-type main-sequence stars|Gliese and GJ objects|Hipparcos objects |
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