| 词条 | LSS 4067 |
| 释义 |
|name=LSS 4067}}{{Starbox observe |constell=Scorpius |epoch=J2000 | ra = {{RA|17|19|05.548}}[1] | dec = {{DEC|-29|43|41.1989}}[1] |appmag_v=11.176[3] }}{{Starbox character |class=O4.5Ifpe[2] |b-v=+1.505[3] |u-b=+0.353[3] }}{{Starbox astrometry |radial_v=-51.0[4] |prop_mo_ra=-2.5[5] |prop_mo_dec=-6.6[5] |dist_ly=9,500–12,700 |dist_pc=2,900–3,900[6] |absmag_v=-7.0[7] |absmag_bol=-11.4[7] }}{{Starbox detail |mass=120[7] |temperature=32800[4] |gravity=3.92[4] |rotational_velocity=<107[4] |age_myr=1.10[7] }}{{Starbox catalog |names=LS 4067, CD−38° 11748, Hen 3-1374, HM 1 VB 4, TYC 7870-896-1, 2MASS J17190554-3848496}}{{Starbox reference |Simbad=LS+4067}}{{Starbox end}}LSS 4067, also known as CD−38° 11748, is an O-type blue supergiant star located in the constellation Scorpius, very close to the galactic plane. It is part of the open cluster HM 1,[8] although its distance is not well known; it may be anywhere between 9,500 and 12,700 light years (2900 to 3900 parsecs) away from the Earth. Despite being a blue supergiant, it is extremely reddened by interstellar extinction, so its apparent magnitude is brighter for longer-wavelength passbands.[3] LSS 4067 has an absolute bolometric magnitude of −11.4,[7] making it one of the most luminous stars known. Indeed, many of the hottest and most luminous stars known are O-type supergiants, or Wolf-Rayet stars. LSS 4067 has an unusual spectrum, with various emission lines including N III and He II emission lines, thus the "f" in its spectral type.[4] Because of this unusual spectrum, classifying the star or deducing its properties has proved relatively difficult: for example, the effective temperature is predicted to be too cool and the surface gravity too high.[4] See also
References1. ^1 {{cite journal|title=2MASS All-Sky Catalog of Point Sources|date=2003|journal=VizieR On-line Data Catalog|author1=Cutri, R. M.|bibcode=2003yCat.2246....0C}} {{Stars of Scorpius}}2. ^{{cite journal|title=The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright Southern Stars|author1=Sota, A.|display-authors=etal|date=2014|journal=The Astrophysical Journal Supplement|volume=211|issue=1|bibcode=2014ApJS..211...10S|arxiv=1312.6222|doi=10.1088/0067-0049/211/1/10}} 3. ^1 2 3 {{cite journal|author=Kozok, J. R.|title=Photometric observations of emission B-stars in the southern Milky Way|journal=Astronomy and Astrophysics Supplement Series|volume=61|pages=387–405|date=1985|bibcode=1985A&AS...61..387K}} 4. ^1 2 3 4 5 {{cite journal|title=Radial Velocities of Galactic O-type Stars. I. Short-term Constant Velocity Stars|author1=Williams, S. J.|display-authors=etal|date=2011|journal=The Astronomical Journal|volume=142|issue=5|bibcode=2011AJ....142..146W|doi=10.1088/0004-6256/142/5/146}} 5. ^1 {{cite journal|title=The Tycho-2 catalogue of the 2.5 million brightest stars|author1=Høg, E.|display-authors=etal|date=2000|journal=Astronomy and Astrophysics|volume=355|pages=L27–L30|bibcode=2000A&A...355L..27H}} 6. ^{{cite journal|author1=Vázquez, R. A.|author2=Baume, G.|doi=10.1051/0004-6361:20010410|title=The open cluster Havlen-Moffat No. 1 revisited|journal=Astronomy and Astrophysics|volume=371|pages=908–920|date=2001|bibcode=2001A&A...371..908V}} 7. ^1 2 3 4 {{cite journal|author1=Massey, P.|author2=Degioia-Eastwood, K.|author3=Waterhouse, E.|doi=10.1086/318769|title=The Progenitor Masses of Wolf-Rayet Stars and Luminous Blue Variables Determined from Cluster Turnoffs. II. Results from 12 Galactic Clusters and OB Associations|journal=The Astronomical Journal|volume=121|issue=2|pages=1050–1070|date=2001|arxiv=astro-ph/0010654|bibcode=2001AJ....121.1050M}} 8. ^{{cite simbad|title=CD-38 11748|accessdate=19 January 2016}} 6 : Scorpius (constellation)|O-type supergiants|Durchmusterung objects|Emission-line stars|2MASS objects|Double stars |
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