C.D.S. - SIMBAD4 rel 1.8 - 2024.04.18CEST14:40:56 4U 1954+31 ---------- Object 4U 1954+31 --- HXB --- OID=@2873735 (@@143403,4) --- coobox=20321 Coordinates(ICRS,ep=J2000,eq=2000): 19 55 42.3383143920 +32 05 49.046285472 (Opt ) A [0.0161 0.0213 90] 2020yCat.1350....0G Coordinates(FK4,ep=B1950,eq=1950): 19 53 45.2341735665 +31 57 48.358412203 Coordinates(Gal,ep=J2000,eq=2000): 068.3919747325564 +01.9268989334214 hierarchy counts: #parents=0, #children=0, #siblings=0 Proper motions: -2.158 -6.071 [0.021 0.026 90] A 2020yCat.1350....0G Parallax: 0.2575 [0.0245] A 2020yCat.1350....0G Radial Velocity: 5.80 [0.48] A 2018yCat.1345....0G Redshift: 0.000019 [0.000002] A 2018yCat.1345....0G cz: 5.80 [0.48] A 2018yCat.1345....0G Flux B : 12.02 [0.18] D 2000A&A...355L..27H Flux V : 9.97 [0.03] D 2000A&A...355L..27H Flux G : 8.358267 [0.003021] C 2020yCat.1350....0G Flux J : 4.905 [0.039] C 2003yCat.2246....0C Flux H : 3.880 [0.234] D 2003yCat.2246....0C Flux K : 3.505 [0.358] D 2003yCat.2246....0C Spectral type: M4/5III C 2006A&A...453..295M Morphological type: ~ ~ ~ Angular size: ~ ~ ~ (~) ~ ~ Identifiers (26): Gaia DR3 2034031438383765760 TIC 87456211 IRAS 19537+3157 4U 1954+31 1RXS J195541.5+320546 3A 1954+319 GPS 1954+319 H 1954+319 1H 1958+325 INTREF 997 1M 1953+319 2U 1954+31 3U 1953+31 4U 1954+319 TYC 2673-2004-1 GSC 02673-02004 [KRL2007b] 369 USNO-A2.0 1200-13816030 2MASS J19554232+3205492 PBC J1955.6+3205 SWIFT J1955.8+3203 SWIFT J1955.6+3205 DO 18341 Gaia DR1 2034031434045616768 Gaia DR2 2034031438383765760 WISEA J195542.33+320548.8 Bibcodes 1850-2024 () (125): 2023A&A...671A.148M 2023A&A...671A.149F 2023A&A...674A..15L 2023A&A...674A.100D 2023A&A...676L...2L 2023ApJS..265...52W 2023MNRAS.520.1872B 2023MNRAS.521.2504O 2022ApJ...928L...8D 2022ApJ...930L..24A 2022ApJ...932..132Y 2022ApJ...935...36D 2022ApJ...941...35M 2022MNRAS.510.4645B 2022MNRAS.513...42B 2022RAA....22a5005X 2021A&A...645A..18D 2021A&A...656A.132S 2021ApJ...908...87N 2021MNRAS.502.5455A 2021MNRAS.507.3899V 2021PASJ...73.1389U 2020ApJ...904..143H 2019ApJ...872...43H 2019ApJS..240...21A 2019MNRAS.485..851Y 2019MNRAS.486.4098I 2019MNRAS.487.2785I 2018A&A...613A..22B 2018ApJ...861..134A 2018ApJS..235....4O 2018MNRAS.473.3204I 2018MNRAS.478..448J 2017A&A...601A.105I 2017ApJ...841...35F 2017MNRAS.469.3056S 2016ApJ...824..143L 2016ApJS..223...15B 2016Natur.531..341S 2016NewA...47...81I 2016PASJ...68S...1N 2016PASJ...68S...2S 2015ApJ...807...17R 2015AstL...41..114K 2015BaltA..24..395M 2014ApJ...786..127E 2014ApJ...788..184W 2014MNRAS.441..640B 2014PASJ...66....6K 2013A&A...556A..30B 2013A&A...559A...6L 2013AJ....146..109D 2013ApJS..207...19B 2013ApJS..209...14K 2012A&A...545A..27K 2012A&A...548A..79A 2012ApJS..201...33W 2012MNRAS.424.2265L 2011A&A...534A..89M 2011ApJ...742L..11M 2011ApJS..195....9C 2011MNRAS.413.1083W 2010A&A...510A...9F 2010A&A...510A..48C 2010A&A...516A..94N 2010A&A...522A..68T 2010A&A...523A..50F 2010A&A...523A..61K 2010A&A...524A..64C 2010ATel.2702....1S 2010ApJ...721.1843V 2010ApJS..186....1B 2010ApJS..186..378T 2010NewA...15..409S 2009A&A...494.1073R 2009ApJ...694..344T 2009ApJ...701.1627H 2009ApJS..184..138H 2008A&A...489..669B 2008ApJ...675.1424C 2008MNRAS.389..608F 2008PASJ...60S..43S 2007A&A...464..277M 2007A&A...467..585B 2007A&A...469..807L 2007A&A...470..331M 2007A&A...475..775K 2007ApJ...671..741L 2007ApJS..170..175B 2006A&A...453..295M 2006A&A...455.1165L 2006A&A...460L...1M 2006ATel..796....1P 2006ATel..797....1C 2006ApJ...647L.135V 2004ApJS..154..585H 2003A&A...411L..59E 2002A&A...390...39A 2001ApJ...554...27H 2000AstL...26..297E 1995A&AS..109....9G 1995A&AS..109..177W 1993ApJ...405..353A 1991ApJ...383L..53A 1989PASJ...41..483K 1988AZh....65...86A 1988MNRAS.232..551W 1988PAZh...14..695S 1984ApJS...54..581L 1984ApJS...56..507W 1982Ap&SS..82....3A 1981MNRAS.197..865W 1980A&A....81..185B 1979ApJS...39..573M 1979ApJS...40..657M 1979ApJS...41..327A 1978A&A....62..265M 1977ApJ...214..856J 1977ApJ...215..541D 1977ApJ...215L..65W 1977ApJ...215L..69G 1976ApJ...206L..29F 1974AJ.....79..368G 1972ApJ...178..281G 1906MNRAS..66..104B Measures (distance:3 MK:2 PLX:3 PM:2 velocities:2 ): distance:3MK:2PLX:3PM:2velocities:2 Notes (0) : ================================================================================