BD+31 4391

Query : BD+31 4391

Basic data :
BD+31 4391 -- S Star
Other object types: otypes_help 		* (BD,GSC,...), S* (CSS,S1*), SB* (SBC9), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		21 15 41.1687655320 +31 45 39.469496148 (Optical) [ 0.0089 0.0137 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		21 13 34.6066342357 +31 33 07.097607240 [ 0.0089 0.0137 90 ]
Gal coord. (ep=J2000) : 		078.3197033098648 -11.8545991115658 [ 0.0089 0.0137 90 ]
Proper motions mas/yr : 		-1.233 -0.051 [0.011 0.017 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 21.90 [0.31] / z(spectroscopic) 0.000073 [0.000001] / cz 21.90 [0.31]
   (Opt) A 2018yCat.1345....0G
Parallaxes (mas): 		0.644 [0.0185] A 2020yCat.1350....0G
Spectral type: 		S2.5/3.5 B 1980ApJS...43..379K
Fluxes (7) :
B 11.53 [0.11] D 2000A&A...355L..27H
V 9.690 [0.024] D 2000A&A...355L..27H
R 9.13 [0.03] D 2009yCat.1315....0Z
G 8.744216 [0.002809] C 2020yCat.1350....0G
J 6.033 [0.021] C 2003yCat.2246....0C
H 5.200 [0.038] C 2003yCat.2246....0C
K 4.925 [0.024] C 2003yCat.2246....0C
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Identifiers (16) :
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BD+31 4391 IRAS 21135+3133 TIC 430100815 [C97] 66
CSS 1267 2MASS J21154116+3145394 TYC 2702-960-1 Gaia DR3 1854380687297108096
GSC 02702-00960 S1* 680 UCAC2 43014033 Gaia DR1 1854380682992946176
Hen 4-236 SBC9 3784 UCAC3 244-260828 Gaia DR2 1854380687297108096

References (13 between 1850 and 2026) (Total 13)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 1    Distance : 2    Plx : 3    PM : 2    SpT : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : BD+31 4391

Link by name to the catalogue in VizieR :

BD+31 4391 GSC 02702-00960 IRAS 21135+3133 2MASS J21154116+3145394 TYC 2702-960-1
UCAC2 43014033 UCAC3 244-260828 Gaia DR3 1854380687297108096 Gaia DR1 1854380682992946176 Gaia DR2 1854380687297108096

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