- HR 4796
Starbox begin
name = HR 4796Starbox observe
epoch =J2000.0
equinox =J2000.0
constell =Centaurus
ra = RA|12|36|01.0316cite web |url=http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=HD+109573 |title=HD 109573 -- Star in double system |work=SIMBAD |publisher=Centre de Données astronomiques de Strasbourg |accessdate=2007-01-08 ]
dec = DEC|−39|52|10.219
appmag_v = 5.783Starbox character
class = A0V
r-i =
v-r =
b-v = +0.01
u-b =
variable = Starbox astrometry
radial_v =
prop_mo_ra = -55.92
prop_mo_dec = −24.00
parallax = 14.91
p_error = 0.75
parallax_footnote =
dist_ly = 220 ± 10
dist_pc = 67 ± 3
space_v_u =
space_v_v =
space_v_w =
absmag_v = Starbox detail
source =
mass = 2
radius =
gravity =
luminosity = 20
luminosity_bolometric =
luminosity_visual =
temperature =
metal =
rotation =
age = 8 millionStarbox catalog
names =2MASS J12360103-3952102, CCDM J12360-3952, CD-39°7717, CPD-39°5622,EXO 1233.3-3935, GC 17164, GSC 07762-01973, HD 109573, HIP 6149, HR 4796, IDS 12307-3919, TYC 7762-1973-1, SAO 203621Starbox reference
Simbad = HD+109573
ARICNS =HR 4796 is a binary star system approximately 220
light-year s away in theconstellation of Centaurus. The system includes an A-type main sequencestar and ared dwarf star. The primary star is twice as massive as the Sun and twenty times more luminous. It is thought to be approximately 8 million years old and is surrounded by aprotoplanetary disk that was discovered in 1991. The dust in the disk appears to be the result of collisions betweenplanetesimal s.cite web
author=Anonymous
date=January 4 ,2008
url=http://www.centauri-dreams.org/?p=1658
title=Suggestive Red Dust in Protoplanetary Disk
publisher=Centauri Dreams
accessdate=2008-01-08]In 2007 observations using the Near-Infrared Multi-Object Spectrometer aboard the
Hubble Space Telescope indicated that the dust had a reddish spectrum similar to that oftholin s. [cite journal| journa=ApJL| title=Complex Organic Materials in the Circumstellar Disk of HR 4796A| first= J.H.|last= Debes|coauthors= A.J. Weinberger, G. Schneider| id=arxiv|0712.3283]See also
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Vega References
External links
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