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词条 HD 192685
释义

  1. Description

  2. Companions

  3. References

  4. External links

{{Starbox begin
| name = HD 192685
}}{{Starbox image
|image={{Location mark
|image=Vulpecula constellation map.svg|alt=|float=center|width=280
|label=|position=right
|mark=Red circle.svg|mark_width=10|mark_link=HD 192685
|x=480|y=376
}}
|caption=Location of HD 192685 (circled)
}}{{Starbox observe
| epoch = J2000
| constell = Vulpecula
| ra = {{RA|20|15|15.89542}}[1]
| dec = {{DEC|25|35|31.0549}}[1]
| appmag_v = 4.60 - 4.80[3]
}}{{Starbox character
| class = B3V[2]
| b-v = -0.18[3]
| u-b = -0.73[3]
| variable = γ Cas[4]
}}{{Starbox astrometry
| radial_v = -7.00[5]
| prop_mo_ra = +6.93[1]
| prop_mo_dec = -3.89[1]
| parallax = 3.29
| p_error = 0.51
| parallax_footnote = [1]
| absmag_v = -2.56[6]
}}{{Starbox detail
| mass = 8.0[7]
| temperature = 18,700[8]
| luminosity = 3331[6]
| rotational_velocity = 160[9]
| gravity = 3.49[10]
| metal_fe = -0.10[10]
}}{{Starbox catalog
| names = BD+25° 4165, CCDM J20153+2536AB, GC 28140, HIP 99824, HR 7739, HD 192685, SAO 88410, WDS J20153+2536AB
}}{{Starbox reference
| Simbad = HD+192685
}}{{Starbox end}}

HD 192685, also known as QR Vul or HR 7739, is a Be star 1,199 ly away in the Vulpecula constellation. It is visible to the naked eye.

Description

HD 192685 varies slightly in brightness and is classified as a γ Cassiopeiae variable.[4]

From October to December 1982 the Hydrogen alpha absorption line increased in emission strength by 30%.[11] The line is partially filled by redshifted emission.[12]

HD 192685 has excess infrared emissions (12-100 μm) which are interpreted to be free-free radiation in the gas surrounding the star.[13]

Companions

It has at least one companion with separation 0.55" and magnitude 7.55,[14] and may also be a long-period spectroscopic binary.[15]

References

1. ^1 2 3 4 {{cite journal | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653 | year=2007 | last1=Van Leeuwen | first1=F. }} Vizier catalog entry
2. ^{{cite journal|last=Walker|first=G. A. H.,|author2=Yang, S. |author3=Witt, A. N. |author4=Fahlman, G. G. |date=Aug–Sep 1980|title=The extinction of HD 200775 by dust in NGC 7023|journal=Publications of the Astronomical Society of the Pacific|volume=92|page=414|url=http://articles.adsabs.harvard.edu//full/1980PASP...92..411W/0000414.000.html |doi=10.1086/130687|bibcode = 1980PASP...92..411W }}
3. ^1 {{cite journal | bibcode=2006yCat.2168....0M | title=VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991) | journal=VizieR On-line Data Catalog: II/168. Originally published in: Institut d'Astronomie | volume=2168 | author1=Mermilliod | first1=J. C. | year=2006 }}Vizier catalog entry
4. ^1 2 {{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}
5. ^{{Cite journal | doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G| title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system| journal=Astronomy Letters| volume=32| issue=11| pages=759| year=2006| last1=Gontcharov| first1=G. A.|arxiv = 1606.08053 }}
6. ^1 {{cite journal | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | title=XHIP: An extended hipparcos compilation | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | last1=Anderson | first1=E. | last2=Francis | first2=Ch. }} Vizier catalog entry
7. ^{{cite journal | bibcode=2011MNRAS.410..190T | doi=10.1111/j.1365-2966.2010.17434.x | arxiv=1007.4883 | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | journal=Monthly Notices of the Royal Astronomical Society | volume=410 | pages=190 | year=2011 | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. }} Vizier catalog entry
8. ^{{cite journal | bibcode=2010AN....331..349H | doi=10.1002/asna.200911355 | arxiv=1003.2335 | title=Masses and luminosities of O- and B-type stars and red supergiants | journal=Astronomische Nachrichten | volume=331 | issue=4 | pages=349 | year=2010 | last1=Hohle | first1=M.M. | last2=Neuhäuser | first2=R. | last3=Schutz | first3=B.F. }} Vizier catalog entry
9. ^{{cite journal | bibcode=2002ApJ...573..359A | doi=10.1086/340590 | title=Rotational Velocities of B Stars | journal=The Astrophysical Journal | volume=573 | pages=359 | year=2002 | last1=Abt | first1=Helmut A. | last2=Levato | first2=Hugo | last3=Grosso | first3=Monica }}
10. ^1 {{cite journal | bibcode=2011A&A...525A..71W | doi=10.1051/0004-6361/201015014 | arxiv=1009.1491 | title=Coudé-feed stellar spectral library – atmospheric parameters | journal=Astronomy & Astrophysics | volume=525 | pages=A71 | year=2010 | last1=Wu | first1=Yue | last2=Singh | first2=H. P. | last3=Prugniel | first3=P. | last4=Gupta | first4=R. | last5=Koleva | first5=M. }}
11. ^{{cite journal|last=Pavlovski|first=K.|author2=Bozic, H. |author3=Harmanec, P. |author4=Horn, J. |author5=Koubsky, P. |date=14 November 1983|title=Sudden Brightening of the Recently Discovered Be Star HR 7739|journal=Information Bulletin on Variable Stars|volume=2431|issue=1|pages=1|issn=0374-0676|url=http://adsabs.harvard.edu/full/1983IBVS.2431....1P |bibcode=1983IBVS.2431....1P}}
12. ^{{cite journal|url=http://www.cbat.eps.harvard.edu/iauc/03700/03710.html#Item2|title=2 Vul AND HR 7739|last=Green|first=Daniel W. E.|date=July 14, 1982|journal=IAU Circular |volume=3710|publisher=IAU Central Bureau for Astronomical Telegrams|accessdate=11 December 2012}}
13. ^{{cite journal|last=Cote|first=J.|date=July 1987|title=B and A type stars with unexpectedly large colour excesses at IRAS wavelengths|journal=Astronomy and Astrophysics|volume=181|issue=1|page=83|issn=0004-6361|url=http://articles.adsabs.harvard.edu//full/1987A%26A...181...77C/0000083.000.html|bibcode=1987A&A...181...77C}}
14. ^{{cite journal | bibcode=2008MNRAS.389..869E | doi=10.1111/j.1365-2966.2008.13596.x | arxiv = 0806.2878 | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869 | year=2008 | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. }} Vizier catalog entry
15. ^{{cite journal | bibcode=2001AJ....122.3466M | doi=10.1086/323920 | title=The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog | journal=The Astronomical Journal | volume=122 | issue=6 | pages=3466 | year=2001 | last1=Mason | first1=Brian D. | last2=Wycoff | first2=Gary L. | last3=Hartkopf | first3=William I. | last4=Douglass | first4=Geoffrey G. | last5=Worley | first5=Charles E. }} Vizier catalog entry

External links

  • {{cite web|url=http://www.astrosurf.com/aras/spiris_en4/spriris_en4.htm|title=Processing the spectrum of the star HD192685|work=PROCESSING LHIRES SPECTRA|author= Robin Leadbeater (translation)}}
  • {{WikiSky}}
{{Stars of Vulpecula}}

9 : Be stars|Vulpecula|Objects with variable star designations|B-type main-sequence stars|Gamma Cassiopeiae variable stars|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects
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