C.D.S. - SIMBAD4 rel 1.8 - 2024.04.18CEST19:29:44 3C_20 ----- Object 3C 20 --- Sy2 --- OID=@45234 (@@4388,0) --- coobox=2099 Coordinates(ICRS,ep=J2000,eq=2000): 00 43 08.8 +52 03 34 (Rad ) D [1000 1000 0] 1996AJ....111.1945D Coordinates(FK4,ep=B1950,eq=1950): 00 40 19.6 +51 47 08 Coordinates(Gal,ep=J2000,eq=2000): 121.6348 -10.7915 hierarchy counts: #parents=0, #children=0, #siblings=0 Proper motions: ~ ~ [~ ~ ] ~ ~ Parallax: ~ [~] ~ ~ Radial Velocity: 47683 [~] D 2002A&A...381..757L Redshift: 0.174 [~] D 2002A&A...381..757L cz: 52164 [~] D 2002A&A...381..757L Flux B : 19.0 [~] E ~ Spectral type: ~ ~ ~ Morphological type: ~ ~ ~ Angular size: ~ ~ ~ (~) ~ ~ Identifiers (35): GB6 B0040+5147 TGSSADR J004308.7+520334 MY 004020.8+520337.0 TXS 0040+517 WN B0040.3+5147 WN B0040.3+5147B WISEA J004309.18+520336.1 NVSS J004308+520334 WISE J004309.18+520336.1 GRA B0039+51 1Jy 0040+517 1Jy 0040+51 3C 20 3C 20.0 3CR 20 4C 51.02 BP 3 BWE 0040+5147 CTB 6 DA 22 DB 3 LEDA 2817481 NRAO 36 OHIO B 567 QSO B0040+517 S4 0040+51 S4 0040+517 WB 0040+5147 WK 24 87GB 004020.4+514714 [VV2000c] J004309.6+520335 [VV2003c] J004309.6+520335 [VV2006c] J004309.6+520335 [VV98c] J004309.6+520335 [VV2010c] J004309.6+520335 Bibcodes 1850-2024 () (213): 2024ApJ...961..241K 2023MNRAS.521.2593H 2022MNRAS.517.5144D 2021A&A...655A..17S 2021ApJ...912...88G 2021ApJ...914...59F 2021ApJ...922..197W 2021ApJS..255...22M 2021MNRAS.500..215D 2020MNRAS.493.4355M 2020MNRAS.499.3660T 2019ApJ...886...37D 2019ApJS..242....4D 2019MNRAS.482..240K 2019MNRAS.482.2502K 2018ApJS..234....7M 2018ApJS..235...32S 2018MNRAS.474..460W 2018MNRAS.474.3361T 2017MNRAS.467.2234D 2016AJ....151..120W 2016MNRAS.458L..24D 2016RAA....16i...4H 2014AJ....148...16S 2014ApJ...786....3S 2014ApJS..212...19F 2014ApJS..215...14D 2014MNRAS.438.1149G 2014MNRAS.438.3233D 2014MNRAS.440..269M 2014MNRAS.443.1482H 2013A&A...550A.113W 2013A&A...560A..81B 2013ApJ...770...31W 2013ApJS..206....7M 2013MNRAS.433..147D 2012A&A...545A.143B 2012ApJ...744...84Y 2012ApJS..203...31M 2012MNRAS.419.2338O 2011A&A...525A..28B 2011MNRAS.416.1900R 2010A&A...509A...6B 2010A&A...518A..10V 2010AJ....139.2494Y 2010ApJ...714..589M 2010ApJ...725.2426B 2010MNRAS.401.1388J 2009A&A...495.1033B 2009ARep...53...30T 2009ApJ...695..156S 2009MNRAS.396.1929H 2009RAA.....9..751F 2008A&A...478..321B 2008ApJ...687..141K 2008ApJS..174...74K 2008ApJS..174..313H 2008ApJS..177..148F 2008MNRAS.388..176H 2008MNRAS.390..595M 2007A&A...462..547F 2007A&A...470..531W 2007ApJ...666..109T 2007ApJ...667..780D 2007ApJ...669..841S 2007PNAOC...4...11Y 2006A&A...455..773V 2006ApJS..164..307M 2005APh....23...31C 2005ApJ...629...88S 2005ApJ...629..757D 2004A&A...421..129S 2004A&A...424..531H 2004ApJ...601..142C 2003A&A...412...45P 2003ApJ...586...33A 2003ApJ...591..695K 2003ApJ...599L..13F 2003MNRAS.345L..40B 2002A&A...381..757L 2002ARep...46..543G 2001A&A...372..719M 2001A&A...377..827G 2001AJ....122...83F 2001MNRAS.320..355H 2000ApJ...534..172L 2000ApJS..129...33D 2000MNRAS.311..397J 2000MNRAS.311..846A 2000MNRAS.319..562H 2000MNRAS.319..963S 1999A&AS..135..571Z 1999AJ....117.1168L 1999ApJ...520...97V 1999MNRAS.302L..60S 1999MNRAS.304..135H 1999MNRAS.308.1096L 1999MNRAS.309..681G 1999MNRAS.309..969H 1998A&AS..132...31N 1998ApJ...503L.109H 1998MNRAS.296..445H 1997A&A...325...57M 1997AJ....114.2292F 1997ApJ...476..489Z 1997MNRAS.286..241J 1997MNRAS.288..859H 1996ApJS..107..541L 1996ApJS..107..621D 1996PASA...13..132P 1995Ap&SS.226..245B 1995ApJ...450L..55S 1995MNRAS.275..976M 1995MNRAS.275.1171B 1995MNRAS.276.1215S 1994A&A...286...25H 1994A&AS..103..349S 1994A&AS..105..211S 1994AJ....107.1977D 1994AcApS..14..290N 1994Ap&SS.213....1B 1994MNRAS.266..669C 1994MNRAS.270..897S 1993A&A...272..161R 1993AJ....105.1690F 1993ApJ...413..453N 1993MNRAS.263..707L 1993MNRAS.264..421C 1992A&A...260...49K 1992ApJ...399...16A 1992ApJS...81...83H 1991ApJ...371..478M 1991ApJ...375...46I 1991ApJ...377...36O 1991MNRAS.252..558C 1990AJ.....99.1397K 1989A&A...219...63M 1989BAAS...21.1143Y 1988A&AS...75..317S 1988Ap&SS.141..303B 1988ApJ...328..114P 1988MNRAS.233...87S 1988MNRAS.233..225R 1987A&A...178....1W 1986A&AS...65..485R 1986AJ.....91..494L 1986AJ.....92...12L 1985Afz....23...47A 1985MNRAS.214...67S 1985MNRAS.216..173W 1985Natur.313...34W 1985PASP...97..932S 1984A&A...140..148V 1984AJ.....89.1111H 1984IAUS..110...15P 1984MNRAS.210..611A 1984MNRAS.211..833L 1983ApJS...52..293W 1983MNRAS.204..151L 1983PASP...95..842S 1982IAUS...97..161L 1981ApJ...248...61P 1981ApJS...45...97S 1981MNRAS.194..331P 1981MNRAS.195..261L 1980MNRAS.192..233R 1978AJ.....83..451P 1977A&AS...30..131V 1977AJ.....82....1R 1977MmRAS..84....1C 1977MmRAS..84...61J 1976AJ.....81.1084G 1976MNRAS.177..137S 1975A&A....42...25L 1975AJ.....80..931V 1974A&A....34..341H 1974MNRAS.167p..31F 1973AJ.....78..828K 1973AJ.....78.1030R 1972AJ.....77..405B 1972MNRAS.156..377B 1971A&A....11..171W 1971AJ.....76....5F 1971ApJS...23..323H 1970AJ.....75.1015M 1969AJ.....74..366R 1969AJ.....74..827D 1969ApJ...156..815B 1969ApJ...157....1K 1969MNRAS.146..265W 1968AJ.....73..135G 1968AJ.....73..298K 1968AJ.....73..717B 1968AJ.....73..953P 1968ApJ...153..743G 1968ApJS...15..203F 1968MNRAS.138...51B 1968MNRAS.138..259M 1968MNRAS.138..393L 1966ApJ...144..459W 1966ApJS...13...65P 1965ApJ...142.1156E 1965MNRAS.131..159C 1964AJ.....69..641M 1964ApJ...140..969K 1963AJ.....68..181W 1963MNRAS.125..261C 1963MmRAS..68..163B 1962ApJS....7..141M 1962MmRAS..68..163B 1960PASP...72..331W 1959MmRAS..68...37E 1959MmRAS..68...61E Measures (herschel:1 ISO:7 velocities:2 ): herschel:1ISO:7velocities:2 Notes (0) : ================================================================================