BD+30 4459

Query : BD+30 4459

Basic data :
BD+30 4459 -- Eclipsing Binary
Other object types: otypes_help 		* (BD,GSC,...), EB* (2009yCat), V* (V*), NIR (2MASS)
ICRS coord. (ep=J2000) : 		21 30 29.8470487824 +31 14 30.352930692 (Optical) [ 0.0318 0.0351 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		21 28 20.7753819308 +31 01 17.439587710 [ 0.0318 0.0351 90 ]
Gal coord. (ep=J2000) : 		080.1818990383232 -14.4906880931586 [ 0.0318 0.0351 90 ]
Proper motions mas/yr : 		-14.984 -11.700 [0.048 0.042 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 16.70 [4.88] / z(spectroscopic) 0.000056 [0.000016] / cz 16.70 [4.88]
   (Opt) C 2018yCat.1345....0G
Parallaxes (mas): 		1.5238 [0.0505] A 2020yCat.1350....0G
Fluxes (6) :
B 10.94 [0.04] D 2000A&A...355L..27H
V 10.54 [0.04] D 2000A&A...355L..27H
G 10.443710 [0.004322] C 2020yCat.1350....0G
J 9.665 [0.021] C 2003yCat.2246....0C
H 9.502 [0.018] C 2003yCat.2246....0C
K 9.437 [0.011] C 2003yCat.2246....0C
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Identifiers (9) :
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BD+30 4459 TIC 160429821 Gaia DR2 1850730682343597440
GSC 02704-01999 TYC 2704-1999-1 Gaia DR3 1850730682343597440
2MASS J21302985+3114304 V* V2643 Cyg Gaia DR1 1850730682343597440

References (3 between 1850 and 2026) (Total 3)
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    Var : 1    Plx : 3    PM : 2   

   

External archives :

Link by name to the catalogue in VizieR :

BD+30 4459 GSC 02704-01999 2MASS J21302985+3114304 TYC 2704-1999-1 V* V2643 Cyg
Gaia DR2 1850730682343597440 Gaia DR3 1850730682343597440 Gaia DR1 1850730682343597440

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