Ross 557

Query : Ross 557

Basic data :
Ross 557 -- Spectroscopic Binary
Other object types: otypes_help 		PM* (2016ApJ,G,...), * (ASCC,Ross,...), SB* (2004A&A,SBC9), NIR (2MASS), MIR (WISEA)
ICRS coord. (ep=J2000) : 		02 44 21.5873757672 +27 40 04.366376760 (Optical) [ 0.0461 0.0391 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		02 41 24.1201143123 +27 27 32.350572988 [ 0.0461 0.0391 90 ]
Gal coord. (ep=J2000) : 		151.5101664776448 -28.8638630392552 [ 0.0461 0.0391 90 ]
Proper motions mas/yr : 		257.404 -150.397 [0.057 0.046 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 29.67 [1.11] / z(~) 0.000099 [0.000004] / cz 29.67 [1.11]
   D 2002AJ....124.1144L
Parallaxes (mas): 		4.2889 [0.058] A 2020yCat.1350....0G
Spectral type: 		K0 D 1985ApJS...59..197B
Fluxes (6) :
B 14.33 [~] D 2001KFNT...17e.409K
R 13.2 [~] E 2003AJ....125..984M
G 13.404453 [0.002762] C 2020yCat.1350....0G
J 11.920 [0.020] C 2003yCat.2246....0C
H 11.435 [0.022] C 2003yCat.2246....0C
K 11.373 [0.020] C 2003yCat.2246....0C
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Identifiers (14) :
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2MASS J02442154+2740047 LSPM J0244+2740 SBC9 2275 Gaia DR2 127122240164483712
ASCC 654782 LTT 10896 TIC 436855379 Gaia DR3 127122240164483712
G 36-32 NLTT 8824 USNO-B1.0 1176-00051095
G 37-2 Ross 557 WISEA J024421.79+274002.8

References (21 between 1850 and 2026) (Total 21)
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    Rot : 1    Plx : 2    PM : 6    SpT : 1   

   

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Link by name to the catalogue in VizieR :

2MASS J02442154+2740047 G 36-32 G 37-2 LSPM J0244+2740 NLTT 8824
USNO-B1.0 1176-00051095 WISEA J024421.79+274002.8 Gaia DR2 127122240164483712 Gaia DR3 127122240164483712

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