HD 168607: Perbedaan antara revisi

{{Starbox character|class=B9Ia⁺<ref name=chentsov>{{cite journal|last1=Chentsov|first1=E. L.|last2=Ermakov|first2=S. V.|last3=Klochkova|first3=V. G.|last4=Panchuk|first4=V. E.|last5=Bjorkman|first5=K. S.|last6=Miroshnichenko|first6=A. S.|title=An atlas of spectra of B6-A2 hypergiants and supergiants from 4800 to 6700Å|journal=Astronomy and Astrophysics|volume=397|issue=3|year=2003|pages=1035–1042|doi=10.1051/0004-6361:20021430|bibcode=2003A&A...397.1035C|url=http://libres.uncg.edu/ir/uncg/f/A_Miroshnichenko_AnAtlasofSpectra_2003.pdf|access-date=2020-08-21|archive-date=2019-04-27|archive-url=https://web.archive.org/web/20190427142209/http://libres.uncg.edu/ir/uncg/f/A_Miroshnichenko_AnAtlasofSpectra_2003.pdf|dead-url=no}}</ref>|b-v=1.54<ref name=ducati/>|u-b=0.41<ref name=ducati/>|j-k=1.06<ref name=ducati/>|variable=[[Luminous blue variable|LBV]]<ref name=naze>{{cite journal|bibcode=2012A&A...538A..47N|title=The first X-ray survey of Galactic luminous blue variables|journal=Astronomy & Astrophysics|volume=538|pages=A47|author1=Nazé|first1=Y.|last2=Rauw|first2=G.|last3=Hutsemékers|first3=D.|year=2012|doi=10.1051/0004-6361/201118040|arxiv = 1111.6375 }}</ref>}}

{{Starbox astrometry|radial_v=-30<ref>{{cite journal|bibcode=2007AN....328..889K|title=Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ˜55000 stars and mean radial velocities of 516 Galactic open clusters and associations|journal=Astronomische Nachrichten|volume=328|issue=9|pages=889|author1=Kharchenko|first1=N. V.|last2=Scholz|first2=R.-D.|last3=Piskunov|first3=A. E.|last4=Röser|first4=S.|last5=Schilbach|first5=E.|year=2007|doi=10.1002/asna.200710776|arxiv = 0705.0878 }}</ref>|prop_mo_ra=-0.27<ref name=hipparcos/>|prop_mo_dec=-1.01<ref name=hipparcos/>|parallax=1.85|p_error=1.29|parallax_footnote=<ref name=hipparcos/>|absmag_v=&minus;8−8.4<ref name=variable>{{cite journal|bibcode=1992A&A...264...88V|title=Light variations of massive stars (Alpha Cygni variables). XIII - the B-type hypergiants R81 (LBV), HD 80077 (LBV?), HD 168607 = V 4029 Sagittarii (LBV) and HD 168625 = V 4030 Sagittarii|journal=Astronomy and Astrophysics|volume=264|pages=88|author1=Van Genderen|first1=A. M.|last2=Van Den Bosch|first2=F. C.|last3=Dessing|first3=F.|last4=Fehmers|first4=G. C.|last5=Van Grunsven|first5=J.|last6=Van Der Heiden|first6=R.|last7=Janssens|first7=A. M.|last8=Kalter|first8=R.|last9=Van Der Meer|first9=R. L. J.|last10=Van Ojik|first10=R.|last11=Smit|first11=J. M.|last12=Zijderveld|first12=M. J.|year=1992}}</ref>}}

HD 168607 biasanya diasumsikan berada pada jarak yang sama dari Nebula Omega (2,2 kilo parsec, 7.200 tahun cahaya, dari Matahari) dan secara fisik dapat dikaitkan dengan [[HD 168625]].<ref name="Chentsov 461–468">{{Cite journal|last=Chentsov|first=E. L.|last2=Gorda|first2=E. S.|date=2004-07|title=Spatial closeness of the white hypergiants HD 168607 and HD 168625|url=http://dx.doi.org/10.1134/1.1774398|journal=Astronomy Letters|volume=30|issue=7|pages=461–468|doi=10.1134/1.1774398|issn=1063-7737|access-date=2020-08-21|archive-date=2023-08-12|archive-url=https://web.archive.org/web/20230812103717/https://link.springer.com/article/10.1134/1.1774398|dead-url=no}}</ref> Dengan asumsi jarak ini benar, bintang ini<ref name="van Genderen 508–531">{{Cite journal|last=van Genderen|first=A. M.|date=2001-02|title=S Doradus variables in the Galaxy and the Magellanic Clouds|url=http://dx.doi.org/10.1051/0004-6361:20000022|journal=Astronomy & Astrophysics|volume=366|issue=2|pages=508–531|doi=10.1051/0004-6361:20000022|issn=0004-6361|access-date=2020-08-21|archive-date=2023-08-12|archive-url=https://web.archive.org/web/20230812103730/https://www.aanda.org/articles/aa/abs/2001/05/aads1896/aads1896.html|dead-url=no}}</ref> memiliki luminositas 240.000 kali lebih terang dari Matahari dengan suhu permukaan dari 9300 K.<ref>{{Cite journal|lastname="van Genderen|first=A. M.|date=2001-02|title=S Doradus variables in the Galaxy and the Magellanic Clouds|url=http://dx.doi.org/10.1051/0004-6361:20000022|journal=Astronomy & Astrophysics|volume=366|issue=2|pages=508–531|doi=10.1051"/0004-6361:20000022|issn=0004-6361}}</ref> Magnitudo tampaknya bervariasi, yaitu 0,25-0,30 m. dengan jangka waktu 64 hari, tetapi tidak ada ledakan yang teramati.<ref>{{Cite journal|lastname="Chentsov|first=E. L.|last2=Gorda|first2=E. S.|date=2004-07|title=Spatial closeness of the white hypergiants HD 168607 and HD 168625|url=http://dx.doi.org/10.1134/1.1774398|journal=Astronomy Letters|volume=30|issue=7|pages=461–468|doi=10.1134"/1.1774398|issn=1063-7737}}</ref> Tidak seperti tetangganya HD 168625, tidak ada nebula yang ditemukan di sekitar bintang ini.<ref>{{Cite journal|last=Smith|first=Nathan|date=2007-02-07|title=Discovery of a Nearby Twin of SN 1987A's Nebula around the Luminous Blue Variable HD 168625: Was Sk -69 202 an LBV?|url=http://dx.doi.org/10.1086/510838|journal=The Astronomical Journal|volume=133|issue=3|pages=1034–1040|doi=10.1086/510838|issn=0004-6256}}</ref>

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