| 释义 |
- References
{{DISPLAYTITLE:Pi1 Columbae}}{{other stars by Bayer designation|Pi Columbae{{!}}π Columbae}}{{Starbox begin
| name = Pi1 Columbae
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Columba
| ra = {{RA|06|06|41.04076}}
| dec = {{DEC|−42|17|55.6872}}
| appmag_v = 6.13[3]
}}{{Starbox character
| class = A2mA5-A9[4]
| b-v = +0.25[3]
| u-b = +0.11[3]
| r-i =
| variable =
}}{{Starbox astrometry
| radial_v = {{Val|2.0|4.3}}[7]
| prop_mo_ra = −34.36
| prop_mo_dec = −1.97
| parallax = 11.99
| p_error = 0.58
| parallax_footnote =
| absmag_v = +1.55[11]
}}{{Starbox detail
| source =
| mass =
| radius = {{Val|2.952|0.282}}[12]
| luminosity = 18.4[13]
| temperature = {{Val|7564|74|fmt=commas}}[12]
| gravity =
| metal_fe =
| rotational_velocity =
| age_gyr =
}}{{Starbox catalog
| names = π1 Col, CD−42° 2343, HD 42078, HIP 28957, HR 2171, SAO 217720.[15]
}}{{Starbox reference
| Simbad = pi01+Col
}}{{starbox end}}Pi1 Columbae, Latinized from π1 Columbae, is an A-type star in the southern constellation of Columba. With an apparent visual magnitude of 6.13,[3] it is a dim star that is near the limit of visibility for the naked eye. It is approximately 270 light years from Earth. References1. ^1 {{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=. }}
2. ^1 2 {{citation | title=Effective temperature scale and bolometric corrections from 2MASS photometry | display-authors=1 | last1=Masana | first1=E. | last2=Jordi | first2=C. | last3=Ribas | first3= I. | journal=Astronomy and Astrophysics | postscript=. | volume=450 | issue=2 | pages=735 | year=2006 | doi=10.1051/0004-6361:20054021 | bibcode=2006A&A...450..735M |arxiv = astro-ph/0601049 }}
3. ^1 {{citation | display-authors=1 | last1=McDonald | first1=I. | last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L. | title=Fundamental Parameters and Infrared Excesses of Hipparcos Stars | journal=Monthly Notices of the Royal Astronomical Society | volume=427 | issue=1 | pages=343–57 | date=2012 | bibcode=2012MNRAS.427..343M | arxiv=1208.2037 | doi=10.1111/j.1365-2966.2012.21873.x | postscript=. }}
4. ^1 {{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 | postscript=. }}
5. ^1 {{citation | last1=Houk | first1=Nancy | title=Michigan catalogue of two-dimensional spectral types for the HD stars | volume=2 | publication-place=Ann Arbor | publisher=Dept. of Astronomy, University of Michigan | year=1978 | bibcode=1978mcts.book.....H | postscript=. }}
6. ^1 2 3 4 {{citation | title=Photoelectric UBVRI observations of AM stars | last1=Feinstein | first1=A. | journal=Astronomical Journal | volume=79 | page=1290 | date=1974 | postscript=. | bibcode=1974AJ.....79.1290F | doi=10.1086/111675 }}
7. ^1 {{cite simbad | title=* pi.01 Col | accessdate=2017-01-02 | postscript=. }}
}}{{Stars of Columba|state=collapsed}} 7 : Am stars|Columba (constellation)|Bayer objects|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |