4C 21.55

Query : 4C 21.55

Basic data :
4C 21.55 -- Blazar
Other object types: otypes_help 		Rad (2020A&A,4C,...), QSO (2010A&A,SNUQSO,...), X (2022MNRAS,2MAXI,...), AGN (2020MNRAS,CGRaBS), Bla (2022ApJS), rG ([BPM2022]), G (2MASX), * (Gaia), NIR (2MASS)
ICRS coord. (ep=J2000) : 		20 33 32.0312455675 +21 46 22.406044129 (Optical) [ 0.0947 0.1234 90 ] A 2018yCat.1345....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 31 19.1588421373 +21 36 03.919511480 [ 0.0947 0.1234 90 ]
Gal coord. (ep=J2000) : 		064.3841425589487 -10.7772495083043 [ 0.0947 0.1234 90 ]
Proper motions mas/yr : 		0.119 0.261 [0.183 0.235 90] A 2018yCat.1345....0G
Radial velocity / Redshift / cz : 		V(km/s) 47582 [150] / z(emission) 0.17359192 [0.0005] / cz 52041.5484 [150]
   (Opt) C 2022ApJS..261....2K
Angular size (arcmin): 		0.297 0.107 170 (NIR) C 2006AJ....131.1163S
Fluxes (6) :
B 18.5 [~] E ~
R 16.2 [~] D 2007ApJ...664...64I
G 17.4125 [0.0045] C 2018yCat.1345....0G
J 14.118 [0.119] D 2006AJ....131.1163S
H 13.637 [0.146] D 2006AJ....131.1163S
K 12.737 [0.092] C 2006AJ....131.1163S
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Identifiers (39) :
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4C 21.55 JVAS B2031+215 RGB J2033+217 VRO 21.20.01
BWE 2031+2135 JVAS J2033+2146 RGB J2033.5+2146 WB 2031+2135
CGRaBS J2033+2146 2MASS J20333202+2146223 RX J2033.5+2146 XSS J20348+2157
DA 516 2MASX J20333202+2146225 SNUQSO J203332.03+214622.3 [BPM2022] J2033+2146
GB6 B2031+2135 2MAXI J2033+219 SWIFT J2033.4+2147 [ILC2007] 35
87GB 203119.8+213543 MITG J203332+2146b SWIFT J2033.4+2144 [VV2010] J203332.0+214621
GLEAM J203333+214617 MITG J203332+2146c SWIFT J2033.7+2147 Gaia DR3 1818540142979855488
ICRF J203332.0+214622 PBC J2033.5+2144 TGSSADR J203333.1+214617 Gaia DR1 1818540142979855488
IERS B2031+216 PKS 2031+216 TIC 417328397 Gaia DR2 1818540142979855488
IVS B2031+216 PKS J2033+2146 VCS1 J2033+2146

References (69 between 1850 and 2026) (Total 69)
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 : 2    PM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 4C 21.55

Link by name to the catalogue in VizieR :

4C 21.55 BWE 2031+2135 IERS B2031+216 2MASS J20333202+2146223 2MASX J20333202+2146225
MITG J203332+2146b MITG J203332+2146c PKS 2031+216 PKS J2033+2146 Gaia DR3 1818540142979855488
Gaia DR1 1818540142979855488 Gaia DR2 1818540142979855488

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