| 词条 | V883 Orionis | ||||
| 释义 |
| name = V883 Orionis}}{{Starbox image | image = | caption = The location of V883 Orionis (circled) }}{{Starbox observe | constell = Orion | epoch = | ra = {{RA|05|38|18.1}}[1] | dec = {{DEC|-07|02|26}}[1] | appmag_v= }}{{Starbox character | class = | b-v = | u-b = | variable = FU Ori }}{{Starbox astrometry | radial_v= | prop_mo_ra= | prop_mo_dec= | parallax= | p_error= | parallax_footnote= | dist_pc=414 ± 7[2] | absmag_v= }}{{Starbox detail | mass=1.29 ± 0.02[2] | radius= | luminosity_bolometric=6[2] | temperature= | gravity= | age_myr=0.5[2] }}{{Starbox catalog | names= V883 Ori, HBC 489 }}{{Starbox reference | Simbad=V883+Ori }}{{Starbox end}}V883 Orionis is a protostar in the constellation of Orion. It is associated with IC 430 (Haro 13A), a peculiar Hα object surveyed by Guillermo Haro in 1952.[3] It is located about 1350 light years (414 parsecs) away,[2] and is associated with the Orion Nebula.[4] V883 Orionis, like most protostars, is surrounded by a circumstellar disc of dust. The dust has a water snow line, a certain distance where the stellar irradiance from the star is low enough that water can freeze to snow. The water snow line was directly imaged by ALMA, when a stellar outburst increased the amount of insolation and pushed the line out farther.[2] GalleryReferences1. ^1 {{cite simbad|title=V883 Ori|accessdate=20 February 2017}} {{Stars of Orion}}{{var-star-stub}}2. ^1 2 3 4 5 {{cite journal|title=Imaging the water snow-line during a protostellar outburst|author1=Cieza, Lucas A.|display-authors=etal|journal=Nature|volume=535|issue=7611|pages=258–261|date=2016|bibcode=2016Natur.535..258C|doi=10.1038/nature18612|arxiv=1607.03757}} 3. ^{{cite journal|doi=10.1093/mnras/173.1.47P|title=Haro 13a: A Luminous, Heavily Obscured Star in Orion?|journal=Monthly Notices of the Royal Astronomical Society|volume=173|pages=47P|year=1975|last1=Allen|first1=D. A.|last2=Strom|first2=K. M.|last3=Grasdalen|first3=G. L.|last4=Strom|first4=S. E.|last5=Merrill|first5=K. M.|bibcode = 1975MNRAS.173P..47A }} 4. ^{{cite web |title=The star V883 Orionis in the constellation of Orion' |publisher=ESO |url=https://www.eso.org/public/unitedkingdom/news/eso1626/}} 3 : Orion (constellation)|FU Orionis stars|Objects with variable star designations |
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