67 Ophiuchi
{{Short description|Star in the constellation Ophiuchus}}
{{Starbox begin
| name = 67 Ophiuchi
}}
{{Starbox image
|image=
{{Location mark
|image=Ophiuchus constellation map.svg|alt=|float=center|width=280
|label=|position=right
|mark=Red circle.svg|mark_width=10|mark_link=67 Ophiuchi
|x=276|y=317
}}
|caption=Location of 67 Ophiuchi (circled)
}}
{{Starbox observe
| epoch = J2000
| constell = Ophiuchus
| dec = {{DEC|+02|55|53.6324}}
}}
{{Starbox character
}}
{{Starbox astrometry
| parallax = 2.65
| p_error = 0.54
| dist_pc={{val|620|60}}
| dist_ly={{val|2020|200}}
}}
{{Starbox detail
| temperature = {{val|14700|300|fmt=commas}}
| luminosity = {{val|39,800|9200|7500|fmt=commas}}
| age_myr={{val|16.6|1.6|1.5}}
}}
{{Starbox catalog
| names = BD+02°3458, CCDM J18007+0256A, FK5 677, GC 24509, HIP 88192, HR 6714, HD 164353, SAO 123013, WDS J18006+0256A
}}
{{Starbox reference
| Simbad = 67+Ophiuchi
}}
{{Starbox end}}
67 Ophiuchi (67 Oph) is a class B5 Ib (blue supergiant) star in the constellation Ophiuchus. Its apparent magnitude is 3.93 and it is approximately 2,000 light years away based on spectroscopy. It is considered to be a member of the open cluster Collinder 359 (Melotte 186).
67 Oph has four companions. The closest is a magnitude 13.7 B1 main sequence star at 8.29", designated B. Component C (BD+02°3459) is the brightest close companion, a magnitude 8.1 B2 main sequence star at 54.32". Component D is a magnitude 12.5 star 8.37" from component C. Component E is a magnitude 10.9 star 46.53" from 67 Oph A.
This star was once considered part of the obsolete constellation Taurus Poniatovii, but after the International Astronomical Union officially recognized constellations, it was placed in Ophiuchus.
References
{{reflist|refs=
{{Cite journal |last=Weßmayer |first=D. |last2=Przybilla |first2=N. |last3=Butler |first3=K. |date=2022-12-01 |title=Quantitative spectroscopy of B-type supergiants |arxiv=2208.02692 |bibcode= 2022A&A...668A..92W |journal=Astronomy & Astrophysics |language=en |volume=668 |pages=A92 |doi=10.1051/0004-6361/202243973 |issn=0004-6361}}
}}
Further reading
- {{Cite journal |last=Underhill |first=A. B. |year=1960 |title=Some spectroscopic observations of the supergiants 67 Ophiuchi, 55 Cygni and χ2 Orionis |journal=Publ. Dominion Astrophys. Obs. |volume=11 |pages=353–361 |bibcode=1960PDAO...11..353U }}
- {{cite journal|doi=10.1002/asna.200510436|title=A study of the young open cluster Collinder 359|journal=Astronomische Nachrichten|volume=326|issue=10|pages=1001–1006|year=2005|last1=Lodieu|first1=N.|bibcode = 2005AN....326.1001L |doi-access=free}}
{{Stars of Ophiuchus}}
{{sky|18|00|38.716|+|2|55|53.63}}
{{DEFAULTSORT:67 Ophiuchi}}