| 释义 |
- References
{{Starbox begin
| name = χ Ophiuchi
}}{{Starbox observe
| epoch = J2000.0
| equinox = J2000.0 (ICRS)
| constell = Ophiuchus
| ra = {{RA|16|27|01.4349}}[1]
| dec = {{DEC|−18|27|22.504}}[1]
| appmag_v={{nowrap|4.18 to 5.0}}[3]
}}{{Starbox character
| class = B2Vne[1]
| u-b = −0.75[5]
| b-v = +0.28[5]
| r-i = +0.22[5]
| variable = GCAS[3] + LERI[1]
}}{{Starbox astrometry
| radial_v = {{nowrap|−3.2 ± 5}}[1]
| prop_mo_ra = −5.58[1]
| prop_mo_dec = −22.22[1]
| parallax = 6.67
| p_error = 0.74
| parallax_footnote = [1]
| absmag_v= −4.6
}}{{Starbox detail
| mass = {{nowrap|10.1 ± 0.7}}[15]
| radius = 4.5[16]
| luminosity =200,000
| temperature = 41,700
| metal_fe =
| gravity = 4.13
| rotational_velocity = 134[5]
| age_myr = {{nowrap|22.5 ± 2.6}}[15]
}}{{Starbox catalog
| names=χ Oph, Chi Ophiuchi, Chi Oph, 7 Ophiuchi, 7 Oph, BD−18 4282, FK5 3298, GC 22117, HD 148184, HIP 80569, HR 6118, PPM 231703, SAO 159918.[1]
}}{{Starbox reference
| Simbad=chi+oph
}}{{Starbox end}}Chi Ophiuchi (Chi Oph / χ Ophiuchi / χ Oph) is a Be star in the constellation of Ophiuchus.[1] It has an apparent visual magnitude which varies between 4.18 and 5.0.[3]This star is a proper motion member of the Upper Scorpius sub-group in the Scorpius-Centaurus OB association, the nearest such co-moving association of massive stars to the Sun. References1. ^{{cite journal|bibcode=2006SASS...25...47W|title=The International Variable Star Index (VSX)|journal=The Society for Astronomical Sciences 25th Annual Symposium on Telescope Science. Held May 23-25|volume=25|pages=47|author1=Watson|first1=C. L.|year=2006}}
2. ^1 2 3 4 5 6 7 8 9 {{cite simbad|title=* chi Oph|accessdate=January 12, 2011}}
3. ^1 2 3 khi Oph, database entry, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line January 12, 2011.
4. ^1 2 3 4 HR 6118, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line January 12, 2011.
5. ^1 HD 148184, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line January 12, 2011.
6. ^1 2 {{citation | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | journal=Monthly Notices of the Royal Astronomical Society | volume=410 | issue=1 | pages=190–200 |date=January 2011 | doi=10.1111/j.1365-2966.2010.17434.x | bibcode=2011MNRAS.410..190T |arxiv = 1007.4883 }}
}}{{Stars of Ophiuchus}} 11 : Ophiuchus (constellation)|Be stars|Bayer objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|Upper Scorpius|Lambda Eridani variables|Gamma Cassiopeiae variable stars|HR objects|Durchmusterung objects |