C.D.S. - SIMBAD4 rel 1.8 - 2024.07.04CEST19:11:35 GG Taur ------- Object V* GG Tau --- Or* --- OID=@719637 (@@114476,12) --- coobox=4872 Coordinates(ICRS,ep=J2000,eq=2000): 04 32 30.3506925552 +17 31 40.494063144 (Opt ) A [0.4264 0.2672 90] 2020yCat.1350....0G Coordinates(FK4,ep=B1950,eq=1950): 04 29 37.0938212648 +17 25 22.163253394 Coordinates(Gal,ep=J2000,eq=2000): 179.5805701537849 -20.2551537195787 hierarchy counts: #parents=2, #children=0, #siblings=0 Proper motions: 13.209 -18.211 [0.581 0.399 90] A 2020yCat.1350....0G Parallax: 8.5914 [0.4725] A 2020yCat.1350....0G Radial Velocity: 12.0 [~] D 1949ApJ...110..424J Redshift: 0.000040 [~] D 1949ApJ...110..424J cz: 12.00 [~] D 1949ApJ...110..424J Flux U : 14.84 [~] C 2002yCat.2237....0D Flux B : 14.78 [~] C 2002yCat.2237....0D Flux V : 13.40 [~] C 2002yCat.2237....0D Flux G : 11.454188 [0.005786] C 2020yCat.1350....0G Flux R : 11.54 [~] E 2003yCat.1289....0Z Flux J : 8.674 [0.035] C 2003yCat.2246....0C Flux H : 7.815 [0.026] C 2003yCat.2246....0C Flux K : 7.364 [0.018] C 2003yCat.2246....0C Spectral type: M0e+M2.0e D 2003ApJ...583..334H Morphological type: ~ ~ ~ Angular size: ~ ~ ~ (~) ~ ~ Identifiers (35): Gaia DR3 3314132593936905600 ATO J068.1265+17.5278 TIC 245830955 2MASS J04323034+1731406 AAVSO 0426+17 CSI+17-04296 GCRV 55174 GEN# +6.20078054 GSC 01270-00897 HBC 54 MHA 257-2 NAME GG Tau A+a SV* SVS 1081 TYC 1270-897-1 UBV 4358 UCAC2 38019727 V* GG Tau [DML87] 131 [RRN96] GG Tau Aa WDS J04325+1732Aa,Ab WDS J04325+1732A ** LEI 3Aa,Ab ** CHN 5A EM* AS 83 MHA 334-3 AKARI-IRC-V1 J0432303+173139 WISE J043230.35+173140.3 PMSC 04267+1919A WISE J043230.35+173140.6 PSCz P04296+1725 JCMTSE J043230.3+173143 JCMTSF J043230.3+173143 IRAS F04296+1725 IRAS 04296+1725 Gaia DR2 3314132593936244992 Bibcodes 1850-2024 () (741): 2024A&A...681A..19C 2024A&A...683A..18M 2024A&A...683A.116N 2024A&A...684A.134R 2024A&A...685A..53G 2024ApJ...964...24T 2024ApJ...966...63Y 2024ApJ...966...84A 2024MNRAS.528..388K 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1989AJ.....98.1368T 1989AJ.....98.1444S 1989ApJ...339..455C 1988AJ.....95..534S 1988ApJ...330..350B 1988IzPul.205...74K 1988LicOB1111....1H 1988MNRAS.235..441H 1987A&AS...70...95D 1987AbaOB..62....1S 1987PASP...99..141R 1986ApJ...309..275H 1986BAAS...18.1027K 1985A&AS...62..309S 1985ApJ...294..345C 1985BAAS...17..556R 1984ApJ...282..699B 1984PUSNO..25....1R 1984RMxAA...9...35C 1983AJ.....88.1017R 1982ApJ...256..168R 1982ApJ...259L..35K 1981A&A....94...80T 1981AJ.....86.1069R 1980Ap.....16..396S 1979ApJ...227..163L 1979ApJS...41..743C 1977ApJ...214..747H 1974MNRAS.169..257C 1972ApJ...174..401H 1961VeSon...5...87G 1950ApJ...112...72M Measures (distance:1 Fe_H:1 herschel:9 ISO:4 IUE:6 MK:1 PLX:1 PM:2 ROT:2 V*:2 velocities:1 ): distance:1Fe_H:1herschel:9ISO:4IUE:6MK:1PLX:1PM:2ROT:2V*:2velocities:1 Notes (1) : (S) 30-Jan-2012 - cl ref:1999ApJ...520..811W obj:V* GG Tau This binary system is designated as "GG Tau Aa" in 1999ApJ...520..811W, or as "GG Tau A+a" (i.e. bright component "A" + fainter component "a"). This is very confusing with the usual nomenclature in which the system is "Aa,Ab", the brightest component is "Aa", and the fainter one "Ab". In the literature, "GG Tau Aa" means sometimes the system, sometimes the component. ================================================================================