| 词条 | HD 87822 |
| 释义 |
| name=HD 87822 }}{{Starbox observe | epoch=J2000 | ra={{RA|10|08|15.88717}} | dec={{DEC|+31|36|14.5875}} | appmag_v=6.240[3] {{nowrap|(6.90 + 7.20)}}[4] | constell=Leo Minor }}{{Starbox character | class=F4V[5] | b-v=+0.445[6] | u-b=+0.01[6] | variable= }}{{Starbox astrometry | radial_v=−8.0[3] | prop_mo_ra=−80.47 | prop_mo_dec=−92.07 | parallax=16.33 | p_error=0.42 | parallax_footnote= | absmag_v=2.23[3] }}{{Starbox orbit | reference = [13] | period = 17.765 ± 0.036 | axis = 0.1560 ± 0.0005 | eccentricity = 0.3960 ± 0.0038 | inclination = 84.59 ± 0.20 | node = 349.57 ± 0.15 | periastron = B 1989.133 ± 0.042 | periarg = 7.73 ± 0.95 }}{{Starbox detail | mass= | radius= | luminosity= | temperature=6,533[5] | metal_fe=0.10[5] | gravity=4.18[5] | rotational_velocity=8[17] | age_gyr=1.6[3] }}{{Starbox catalog | names=BD+32° 1982, HD 87822, HIP 49658, HR 3979, SAO 61882. }}{{Starbox reference | Simbad=HD+87822 }}{{Starbox end}}HD 87822 is a binary star in the northern constellation of Leo Minor. The pair orbit each other with a period of about 18 years.[4] References1. ^1 {{cite journal | bibcode=1996AJ....111..370H | doi=10.1086/117790 | title=Binary Star Orbits From Speckle Interferometry. VIII. Orbits of 37 Close Visual System | author1=Hartkopf, William I. | author2=Mason, Brian D. | author3=McAlister, Harold A. | journal=Astronomical Journal | volume=111 | page=370 | date=1996}} [1][2][3][4][5][6]2. ^1 2 3 4 {{citation | display-authors=1 | last1=Holmberg | first1=J. | last2=Nordström | first2=B. | last3=Andersen | first3=J. | title=The Geneva-Copenhagen survey of the Solar neighbourhood. II. New uvby calibrations and rediscussion of stellar ages, the G dwarf problem, age-metallicity diagram, and heating mechanisms of the disk | journal=Astronomy & Astrophysics | volume=475 | issue=2 | pages=519–537 | date=2007 | arxiv=0707.1891 | bibcode=2007A&A...475..519H | doi=10.1051/0004-6361:20077221}} 3. ^1 2 3 4 {{citation | display-authors=1 | last1=Cenarro | first1=A. J. | last2=Peletier | first2=R. F. | last3=Sánchez-Blázquez | first3=P. | last4=Selam | first4=S. O. | last5=Toloba | first5=E. | last6=Cardiel | first6=N. | last7=Falcón-Barroso | first7=J. | first8=Gorgas | last8=J. | last9=Jiménez-Vicente | first9=J. | title=Medium-resolution Isaac Newton Telescope library of empirical spectra - II. The stellar atmospheric parameters | journal=Monthly Notices of the Royal Astronomical Society | volume=374 | issue=2 | pages=664–690 | date=January 2007 | doi=10.1111/j.1365-2966.2006.11196.x | bibcode=2007MNRAS.374..664C | arxiv=astro-ph/0611618}} 4. ^1 {{cite journal | last1=Uesugi | first1=Akira | last2=Fukuda | first2=Ichiro | title=Catalogue of rotational velocities of the stars | journal=Contributions from the Institute of Astrophysics and Kwasan Observatory | date=1970 | publisher=University of Kyoto | bibcode=1970crvs.book.....U}} 5. ^1 2 {{citation | last1=Mermilliod | first1=J.-C. | title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) | journal=Catalogue of Eggen's UBV data. SIMBAD | date=1986 | bibcode=1986EgUBV........0M}} 6. ^1 2 {{citation | display-authors=1 | last1=Malkov | first1=O. Yu. | last2=Tamazian | first2=V. S. | last3=Docobo | first3=J. A. | last4=Chulkov | first4=D. A. | title=Dynamical Masses of a Selected Sample of Orbital Binaries | journal=Astronomy & Astrophysics | volume=546 | id=A69 | pages=5 | date=2012 | doi=10.1051/0004-6361/201219774 | bibcode =2012A&A...546A..69M}} }}{{Stars of Leo Minor}}{{multi-star-stub}} 7 : Spectroscopic binaries|Leo Minor|Double stars|Henry Draper Catalogue objects|HR objects|Hipparcos objects|Durchmusterung objects |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。