|
gptkbp:instanceOf
|
gptkb:star
Herbig Ae/Be star
|
|
gptkbp:age
|
4 million years
|
|
gptkbp:apparentMagnitude
|
7.06
|
|
gptkbp:declination
|
+30° 33′ 04″
|
|
gptkbp:diameter
|
2.5 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:John_Flamsteed
|
|
gptkbp:distanceFromEarth
|
514 light years
|
|
gptkbp:hasCompanion
|
possible brown dwarf
|
|
gptkbp:hasDebrisDisk
|
yes
|
|
gptkbp:hasInfraredExcess
|
yes
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
AB Aurigae
|
|
gptkbp:isPreMainSequence
|
yes
|
|
gptkbp:locatedIn
|
gptkb:constellation_Auriga
|
|
gptkbp:luminosity
|
47 solar luminosities
|
|
gptkbp:mass
|
2.4 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.08
|
|
gptkbp:observedBy
|
gptkb:VLTI
gptkb:IRAS
gptkb:Gaia
gptkb:Gemini_Observatory
gptkb:Herschel_Space_Observatory
gptkb:Keck_Observatory
gptkb:Very_Large_Array
gptkb:CHARA_Array
gptkb:Spitzer_Space_Telescope
gptkb:Chandra_X-ray_Observatory
gptkb:Hubble_Space_Telescope
gptkb:James_Clerk_Maxwell_Telescope
gptkb:SOFIA
gptkb:IRTF
gptkb:VLT
gptkb:ALMA
Canada-France-Hawaii Telescope
Subaru Telescope
|
|
gptkbp:otherDesignation
|
gptkb:BD+30_779
gptkb:HD_31293
gptkb:HIP_22910
gptkb:HR_1549
gptkb:SAO_57913
|
|
gptkbp:parallax
|
6.35 mas
|
|
gptkbp:properMotionRA
|
1.87 mas/yr
-24.24 mas/yr
|
|
gptkbp:rightAscension
|
04h 55m 45.8s
|
|
gptkbp:spectralType
|
A0Ve
|
|
gptkbp:temperature
|
9500 K
|
|
gptkbp:variableType
|
gptkb:UX_Orionis_variable
|
|
gptkbp:bfsParent
|
gptkb:pre-main-sequence_star
|
|
gptkbp:bfsLayer
|
6
|