C.D.S. - SIMBAD4 rel 1.8 - 2024.04.16CEST09:46:02 Q0957+561 --------- Object 8C 0958+561 --- QSO --- OID=@507146 (@@3217,3) --- coobox=3507 Coordinates(ICRS,ep=J2000,eq=2000): 10 01 20.6918953728 +55 53 55.593949272 (Opt ) A [0.0401 0.0410 90] 2020yCat.1350....0G Coordinates(FK4,ep=B1950,eq=1950): 09 57 57.2613660930 +56 08 22.566003597 Coordinates(Gal,ep=J2000,eq=2000): 157.5694800133507 +48.1869999737969 hierarchy counts: #parents=1, #children=0, #siblings=0 Proper motions: -0.037 0.006 [0.053 0.064 90] A 2020yCat.1350....0G Parallax: 0.0483 [0.0766] A 2018yCat.1345....0G Radial Velocity: 211972 [~] C 2017AJ....154..114O Redshift: 1.414 [~] C 2017AJ....154..114O cz: 423907 [~] C 2017AJ....154..114O Flux B : 17.16 [~] D 2010A&A...518A..10V Flux V : 16.95 [~] D 2010A&A...518A..10V Flux G : 17.108419 [0.004049] C 2020yCat.1350....0G Flux u : 17.2251 [0.0255] C 2020ApJS..250....8L Flux g : 17.1134 [0.0277] C 2020ApJS..250....8L Flux r : 16.9234 [0.0249] C 2020ApJS..250....8L Flux i : 16.8075 [0.0298] C 2020ApJS..250....8L Flux z : 16.8607 [0.0246] C 2020ApJS..250....8L Spectral type: ~ ~ ~ Morphological type: ~ ~ ~ Angular size: ~ ~ ~ (~) ~ ~ Identifiers (51): Gaia DR3 1045166002126206848 EQ 0957+56 QSO B0957+561A QSO B0956+56A QSO B0957+5608A QSO J1001+5553A RGB J1001+558A YGKOW 83 [BDW2002] q0957+5608a [HB93] 0957+561A [RGH85] A [VV2000] J100120.8+555354 [VV2003] J100120.8+555354 [VV2006] J100120.8+555354 [VV96] J100120.8+555354 [VV98] J100120.8+555354 [ZEH2003] RX J1001.3+5553 1 IERS B0957+561 GB6 J1001+5553 [VV2010] J100120.8+555354 8C 0958+561 BWE 0957+5608 GB6 B0957+5608 NVSS J100121+555355 QSO J1001+5553 QSO B0957+561 RGB J1001+558C RIXOS 252-31 SBSS 0957+561 TXS 0957+561 WB 0957+5608 1E 0957.9+5608 1E 0957.9+5607 1E 0957+56.1 1RXS J100121.5+555351 87GB 095758.5+560808 FIRST J100121.1+555357 RX J100120.3+555349 RX J1001.3+5553 WN B0957.9+5608 SDSS J100120.68+555355.9 RGB J1001.4+5553 6C 095757+560821 7C 095757.60+560823.00 VLSS J1001.3+5553 WISE J100120.68+555355.4 NAME Twin Quasar SDSS J100120.69+555355.6 Gaia DR2 1045166002126206848 KODIAQ J100120+555355 WISEA J100120.68+555355.4 Bibcodes 1850-2024 () (733): 2023A&A...672A..20M 2023A&A...678A.108F 2023ApJ...948...47H 2023ApJ...952...54R 2023ApJS..265....8R 2023MNRAS.518.3222B 2023MNRAS.519.2528M 2023MNRAS.525...91P 2023NatAs...7..967M 2023RAA....23c5001Z 2022A&A...658A...7B 2022A&A...663A.179V 2022A&A...666A..11P 2022A&A...667A..67F 2022ApJ...929..123E 2022ApJS..259...27O 2022MNRAS.513.2491T 2021A&A...647A..98P 2021A&A...653A.109F 2021A&A...654A..70F 2021A&A...655A.109B 2021ApJ...911...44T 2021ApJ...912L..29L 2021MNRAS.503.3848H 2020A&A...633A.107H 2020A&A...640A.105M 2020A&A...642A.150L 2020AJ....160..265H 2020ApJ...888L..25C 2020ApJ...889..186Z 2020ApJ...892...62D 2020ApJ...894..153D 2020ApJ...895...93C 2020ApJ...904...28C 2020ApJ...905....7C 2020ApJS..249...17R 2020ApJS..250....8L 2020MNRAS.493.3331N 2020MNRAS.497..556H 2019A&A...621A..91W 2019ApJ...886...83K 2019ApJS..242....4D 2019ApJS..244...36C 2019MNRAS.483.1104Q 2019MNRAS.484.3552B 2019MNRAS.484.4337T 2019MNRAS.487.5263D 2019MNRAS.489.2525A 2019MNRAS.489L..32M 2018A&A...613A...6W 2018A&A...613A..51P 2018A&A...616A.118G 2018ApJ...859...50F 2018ApJ...862..104M 2018ApJ...867...50C 2018ApJ...869..106M 2018ApJS..235...11C 2018MNRAS.473...80T 2018MNRAS.474.3391A 2018MNRAS.476..663K 2018MNRAS.476.5075S 2017A&A...597A..79P 2017AJ....154..114O 2017ApJ...834...75X 2017ApJ...850..102G 2017MNRAS.468.3757W 2017MNRAS.471.2013A 2017MNRAS.471.3378H 2017MNRAS.472...90D 2016ApJ...818..113N 2016ApJ...832...46M 2016MNRAS.456..870B 2016MNRAS.459..573A 2016MNRAS.460.1428C 2016MNRAS.461.2192C 2016MNRAS.461.3714T 2016MNRAS.462.1405J 2015A&A...580A..38R 2015ARep...59...12S 2015ApJ...799...48B 2015ApJ...799..149J 2015ApJ...799..168D 2015ApJ...805..161W 2015ApJ...806..251J 2015ApJ...807..138C 2015ApJS..219...29M 2015MNRAS.451..383W 2015MNRAS.452.2423Y 2015MNRAS.454..862W 2015MNRAS.454.1404S 2015Sci...347.1123K 2014A&A...568A.116S 2014ApJ...783...47J 2014ApJ...788..190W 2014ApJS..212...15F 2014ApJS..215...14D 2014MNRAS.437..600S 2014MNRAS.445.2181C 2013A&A...553A.120T 2013A&A...553A.121E 2013A&A...556A..22T 2013A&A...559A..37S 2013ApJ...764..160G 2013ApJ...765..139R 2013ApJ...774...69H 2013ApJ...778..123G 2013MNRAS.431.1528B 2012A&A...538A..43C 2012A&A...538A..99S 2012A&A...540A.132S 2012AJ....143..120O 2012ApJ...744...47G 2012ApJ...744...90B 2012ApJ...744..104H 2012ApJ...751..106J 2012ApJ...755...24C 2012ApJ...755...31C 2012ApJ...755...82M 2012MNRAS.420.3574G 2012MNRAS.421..971R 2012MNRAS.424..325J 2012MNRAS.424.2864C 2012MNRAS.425.3077L 2012MmSAI..83...54B 2011A&ARv..19...47K 2011ApJ...730..108R 2011ApJ...738...96M 2011ApJ...740...97L 2011ApJ...742...93A 2011ApJS..197...24M 2011BaltA..20..125H 2011ChA&A..35..218Y 2011JRASC.105...61F 2011MNRAS.412..900M 2011MNRAS.412.2631L 2011MNRAS.413..887C 2011MNRAS.413.2121M 2011MNRAS.415.2744H 2011RAA....11.1003Q 2010A&A...511A..53V 2010A&A...518A..10V 2010A&A...520A.113B 2010AJ....140..403I 2010ApJ...709..937G 2010ApJ...711..201S 2010ApJ...711..246F 2010ApJ...712.1378P 2010ApJ...716.1579L 2010ApJ...719.1672H 2010ApJ...724..400C 2010MNRAS.401.2805K 2010MNRAS.402...35C 2010MNRAS.405.2579O 2010MNRAS.409..679C 2010MmSAI..81..138K 2010MmSAI..81..144B 2010NewA...15...16T 2009A&A...501..475T 2009AJ....138..421S 2009ATel.2228....1G 2009ApJ...693..174C 2009ApJ...694..924M 2009ApJ...697.1793N 2009ApJ...705L..40K 2009ApJ...706.1451M 2009ApJS..184..138H 2009MNRAS.392..998E 2009MNRAS.394L..61K 2009MNRAS.396..385K 2009MNRAS.397..943M 2009MNRAS.398..201G 2009MNRAS.400..875L 2009MNRAS.400.1493K 2009MNSSA..68...78S 2009NewAR..53..179L 2009RMxAC..35..195F 2008A&A...478...95Y 2008A&A...489..489R 2008A&A...492..401S 2008A&A...492..411G 2008AJ....135..496I 2008AJ....135..512O 2008AJ....135..947S 2008AJ....135..984H 2008ARep...52..517K 2008ApJ...676..761F 2008ApJ...679...17C 2008MNRAS.386..307L 2008MNRAS.387.1303S 2008NewA...13..182G 2007A&A...461..813C 2007A&A...462..581H 2007A&A...464..471H 2007A&A...470...53A 2007A&A...475..453Z 2007AJ....133..313A 2007AJ....133..564W 2007ApJ...660....1O 2007ApJ...660L..31M 2007ApJ...661...88K 2007ApJ...662...62F 2007ApJ...663...29S 2007ApJ...667..645R 2007ApJ...669..821H 2007ApJ...671.1568J 2007MNRAS.376..673M 2007MNRAS.377.1623Z 2007MNRAS.381L..55B 2007MNRAS.382..308K 2007MNRAS.382..819V 2006A&A...447..905V 2006A&A...450..461S 2006A&A...451..865C 2006A&A...452...25U 2006A&A...452...37K 2006A&A...454..695C 2006A&A...455..773V 2006A&A...455L...1P 2006A&A...460..647D 2006AJ....131....1H 2006AJ....131.1934I 2006AJ....132..420S 2006ARep...50...79Z 2006ApJ...636..610R 2006ApJ...636L...5S 2006ApJ...640...47K 2006ApJ...641..683S 2006ApJ...642...30F 2006ApJ...643..667K 2006ApJ...649..616P 2006ApJ...650L..17S 2006MNRAS.367.1209L 2006MNRAS.367.1241O 2006MNRAS.368..171Z 2006MNRAS.368..335E 2006MNRAS.369..485S 2006MNRAS.371..356C 2006PASJ...58..271K 2005A&A...431..103J 2005A&A...431..879K 2005A&A...436...25E 2005AJ....129.1225S 2005AJ....130.1967I 2005ARA&A..43..677S 2005ApJ...619...19G 2005ApJ...619..733M 2005ApJ...622..106O 2005ApJ...622..797K 2005ApJ...622L.101W 2005ApJ...624..118M 2005ApJ...624..463G 2005ApJ...625..633D 2005ApJ...627...32S 2005ApJ...630..142G 2005ApJ...635...35K 2005MNRAS.356.1509C 2005MNRAS.357..124Y 2005MNRAS.357..135P 2005MNRAS.359.1165G 2005MNRAS.360L..60G 2005PASP..117..311T 2005RMxAA..41..155S 2004A&A...414..425S 2004A&A...420..881Z 2004A&A...422..477S 2004A&A...428..741F 2004AAS...205.2810W 2004AJ....128.2631W 2004ApJ...600L..23C 2004ApJ...601..692V 2004ApJ...605...78O 2004ApJ...608..698S 2004ApJ...609...61H 2004ApJ...611....1P 2004ApJ...613..129W 2004ApJS..150..165K 2004IAUC.8298....1P 2004IAUS..220..133Z 2004LAstr.118...76O 2004MNRAS.348..519L 2004MNRAS.352.1291P 2004PASP..116..187T 2003A&A...399..857K 2003A&A...402..891O 2003A&A...406..535Z 2003A&A...412..399V 2003A&A...412..707R 2003AJ....126...24H 2003AJ....126..689S 2003AJ....126.2281J 2003ApJ...582..141G 2003ApJ...583...49K 2003ApJ...583..575G 2003ApJ...584..657S 2003ApJ...587...71C 2003ApJ...587...80W 2003ApJ...587..143R 2003ApJ...588..711C 2003ApJ...592..710A 2003ApJ...593..203C 2003ApJ...594...97C 2003ApJ...594..101O 2003ApJ...594..107Y 2003ApJ...599...70K 2003MNRAS.345..795O 2003MNRAS.345.1351E 2003MNRAS.346..415U 2003MNRAS.346.1103P 2003RMxAC..16..317U 2002A&A...381..428G 2002A&A...381..757L 2002A&A...383...71B 2002A&A...389L..57P 2002A&ARv..10..263C 2002AAS...201.6704C 2002AJ....123..627F 2002ApJ...565...96C 2002ApJ...565..105C 2002ApJ...568..488O 2002ApJ...570...17M 2002ApJ...571..654D 2002ApJ...571..712B 2002ApJ...573L...1O 2002ApJ...574..623I 2002ApJ...575..650W 2002ApJ...576..107M 2002ApJ...577..615W 2002ApJ...578...25K 2002ApJ...580....2O 2002ApJ...581..823F 2002ApJS..140..143B 2002BASI...30..723N 2002MNRAS.329...76H 2002MNRAS.330..205R 2002MNRAS.334..905G 2002MNRAS.337...26L 2002PABei..20..175H 2002PASA...19..455C 2002PASP..114....1W 2002RMxAC..14..146O 2001A&A...367..741S 2001A&A...374...92V 2001A&A...374..770M 2001A&A...375..701D 2001A&A...379...72C 2001A&A...380..805B 2001AJ....121...21B 2001Ap&SS.275..385S 2001ApJ...546..769M 2001ApJ...547...50K 2001ApJ...547L.115S 2001ApJ...549L..25K 2001ApJ...549L..33R 2001ApJ...550..153K 2001ApJ...550L.163C 2001ApJ...552...81O 2001ApJ...554..496T 2001ApJ...554.1216C 2001ApJ...557..594R 2001ApJ...558..119C 2001ApJ...559..531K 2001ApJ...561L..69I 2001JApA...22..263B 2001MNRAS.320..401Z 2001MNRAS.322..397G 2001MNRAS.325.1097G 2001MNRAS.325.1317K 2001MNRAS.325.1527C 2001MNRAS.326.1403P 2001MNRAS.327..552M 2001MNRAS.327..557M 2001PASA...18..172E 2001PASA...18..179K 2001PASA...18..207W 2001S&T...102c..32P 2001SciAm.285e..52W 2000A&A...355..552R 2000A&A...356..391K 2000A&A...358..793K 2000A&A...360...10R 2000A&A...362L..37W 2000A&A...363..141R 2000A&AS..147..169B 2000AJ....119..439W 2000AJ....119..451L 2000AJ....120.2868W 2000ARA&A..38...79W 2000ApJ...529...77I 2000ApJ...531...81C 2000ApJ...531..635M 2000ApJ...535..692K 2000ApJ...537..697K 2000ApJ...539..111D 2000ApJ...539..155G 2000ApJ...540..104C 2000ApJ...540L..65W 2000ApJ...542...74K 2000ApJ...543..131K 2000ApJ...543..552S 2000ApJ...543..577C 2000ApJ...544...98W 2000ApJ...544..117B 2000ApJ...544L..35K 2000ApJ...545...63E 2000ApJ...545..129K 2000ApJ...545..578C 2000ApJS..129..547B 2000ApJS..130....1R 2000INGN....3...25G 2000JBAA..110..127G 2000MNRAS.311..456M 2000MNRAS.311..689W 2000MNRAS.315...51W 2000MNRAS.319..872M 2000PASP..112..126K 1999A&A...346L...5W 1999A&A...351...21P 1999AJ....117.2034T 1999AJ....118...14B 1999AJ....118.1435W 1999AN....320..314O 1999Ap&SS.261..337P 1999Ap&SS.261..341G 1999Ap&SS.263...47G 1999Ap&SS.263...51M 1999ApJ...510...42C 1999ApJ...510...64H 1999ApJ...510..576P 1999ApJ...510..590K 1999ApJ...511..546T 1999ApJ...513..598L 1999ApJ...514..598S 1999ApJ...515..512T 1999ApJ...516...18R 1999ApJ...518..153C 1999ApJ...519L..31Y 1999ApJ...520..479B 1999ApJ...521..134S 1999ApJ...523..617F 1999ApJ...524..572P 1999ApJ...524..582C 1999ApJ...526...40S 1999ApJ...527..498F 1999ApJ...527..513K 1999AstL...25..793Z 1999IAUS..194..356K 1999MNRAS.302...68F 1999MNRAS.303....1N 1999MNRAS.304..349B 1999MNRAS.306..223W 1999MNRAS.306..567F 1999MNRAS.308..233M 1999MNRAS.309..261W 1999MNRAS.309..836M 1999Natur.400..111G 1999NewAR..43..519G 1999PASA...16...89I 1999Sci...286.2493P 1998A&A...334L..33J 1998A&A...335..379S 1998A&A...336..829P 1998A&A...337..681P 1998A&A...340L..23H 1998AJ....115....1T 1998AJ....115..377F 1998ARA&A..36..267R 1998Ap&SS.259..295O 1998ApJ...492...74G 1998ApJ...492L...9M 1998ApJ...496..177M 1998ApJ...504..661C 1998ApJ...504..671K 1998ApJ...507..108P 1998ApJ...508L..51L 1998ApJ...509..551I 1998ApJ...509..561K 1998CR2...326..141B 1998MNRAS.295..488S 1998MNRAS.301..861W 1998NewAR..42...73N 1998NewAR..42...85H 1998NewAR..42..101W 1997A&A...317L..13B 1997A&A...319..413B 1997A&A...325..877R 1997A&A...328L..25H 1997A&G....38e..10W 1997AJ....113..130S 1997AJ....113..521F 1997AJ....114..507K 1997AJ....114.2240H 1997AJ....114.2276K 1997Ap&SS.246..299O 1997ApJ...474..598M 1997ApJ...475..457I 1997ApJ...475..512K 1997ApJ...475L..85S 1997ApJ...477..568Z 1997ApJ...479..102H 1997ApJ...479L..89O 1997ApJ...482...68K 1997ApJ...482...75K 1997ApJ...483L..13G 1997ApJ...483L..79B 1997ApJ...484...70F 1997ApJ...486..117I 1997ApJ...487...42K 1997ApJ...488L.121A 1997ApJ...489...21B 1997ApJ...489..476P 1997ApJ...489..522L 1997ApJ...491..451M 1997ApJ...491L...7O 1997MNRAS.287..155L 1997MNRAS.289..933P 1997MNRAS.291..177P 1997MNRAS.291..811H 1997MNRAS.292..148S 1997PSci..242...58C 1996A&A...305...97P 1996A&A...306..391A 1996A&A...309...59O 1996A&A...314...73P 1996ApJ...457..529B 1996ApJ...457L...5F 1996ApJ...458...67M 1996ApJ...464...54S 1996ApJ...464...92G 1996ApJ...464..125S 1996ApJ...466..638K 1996ApJ...469...48W 1996ApJ...469...78V 1996ApJ...470L..19O 1996ApJ...471..657K 1996ApJ...473..610K 1996ApJS..105..369M 1996BAAS...28Q1301H 1996BAAS...28U.843H 1996C&E...318...38A 1996FCPh...17....1W 1996JAF....52...34S 1996KFNT...12e...3A 1996MNRAS.278..787H 1996MNRAS.279..229M 1996Natur.379..115K 1996PASJ...48..265T 1996PASP..108.1083T 1996S&T....91a..20R 1995A&A...300..323J 1995A&A...301..641R 1995A&A...303....1C 1995A&A...304..341B 1995A&AS..109..147B 1995A&AS..110..213R 1995AJ....109.1956H 1995AJ....109.1970S 1995AJ....110.1476K 1995AJ....110.2566C 1995AJ....110.2570L 1995AZh....72..457K 1995ApJ...438..120E 1995ApJ...440..435L 1995ApJ...442...87D 1995ApJ...444...64S 1995ApJ...445..140C 1995ApJ...447L...9S 1995ApJ...448L..65W 1995ApJ...449..488R 1995ApJ...450...19W 1995ApJ...452..109K 1995ApJ...453..545K 1995ApJ...455L...5K 1995BAAS...27.1351F 1995BAAS...27.1351H 1995BASI...23..489N 1995IrAJ...22..137D 1995MNRAS.274L...5P 1995MNRAS.276..103L 1995MNRAS.277....1S 1995MNRAS.277..609T 1995NewSc1966...16G 1995PASA...12..118W 1995S&W....34...24B 1994A&A...281..388A 1994A&A...286..775P 1994A&A...291...74P 1994A&A...291..411A 1994A&ARv...5..239F 1994AJ....107..461B 1994ARBei..25....1S 1994ApJ...426..486C 1994ApJ...431...74G 1994ApJ...433..528M 1994ApJ...434...54T 1994ApJ...435L..79D 1994BAAS...26..965C 1994BASI...22..227C 1994BSAO...37..150B 1994MNRAS.268..690K 1994MNRAS.270..457G 1994MNRAS.271...31M 1994RPPh...57..117R 1993AJ....105..816B 1993AcApS..13..125L 1993ApJ...403..530W 1993ApJ...407...60T 1993ApJ...410...21J 1993ApJ...416..425M 1993ApJ...417..438K 1993ApJ...417L..57M 1993ApJ...419...12K 1993ApJS...87..451H 1993BAAS...25.1307M 1993BAAS...25.1403A 1993FA90..R.....88P 1993JAVSO..22...12W 1993Msngr..74...27H 1993Sci...262..846M 1992ARA&A..30..311B 1992ApJ...384..453L 1992ApJ...385..404P 1992ApJ...385..416P 1992ApJ...387L..61C 1992ApJ...397L...1W 1992ApJS...81..661C 1992MNRAS.254p..27G 1992MNRAS.256..589P 1991AJ....101..813S 1991ApJ...382...58K 1991ApJS...77..203J 1991PCMP3.R....192S 1991S&T....82..423O 1990AJ....100.1771S 1990SoSAO..64..104S 1989A&A...215....1V 1989NewSc.122...41. 1988AcA....38....1P 1988ApJ...334...42G 1988BAAS...20Q1001L 1988IAUS..129..201G 1988IUE88...2..257A 1987AN....308..177M 1987ARA&A..25..425T 1987AcApS...7....8X 1987ApJ...313...13S 1987ApJ...315L..83D 1987ApJ...320L..75M 1987ApJ...321...49T 1987ApJ...321..658B 1987ApJ...321L..17D 1987ApJ...322..739L 1987ApJS...64..667T 1987MNRAS.224..675B 1987MNRAS.227..453G 1987MNRAS.229..157B 1986A&A...166...36K 1986A&A...166L...5M 1986A&A...169....1B 1986AJ.....91..354Y 1986Ap&SS.119..227F 1986ApJ...300..209S 1986ApJ...303..605S 1986ApJ...308..815N 1986ApJ...309..467B 1986ApL....25...99Z 1986IAUS..119..517B 1986LAstr.100....3V 1986MNRAS.222..787M 1986NIA86......523U 1986NIA86......715G 1986Rech...17.1576K 1986S&W....25..252K 1985AJ.....90...30R 1985ApJ...289...37S 1985ApJ...289L...1F 1985ApJ...293..356R 1985ApJ...293..370G 1985ApJ...298..732C 1985MNRAS.215..639Z 1985Natur.314..402G 1984A&A...130..157C 1984A&A...132..168C 1984A&A...133..374B 1984A&A...136L...9S 1984A&A...138L..19F 1984A&A...139..289C 1984A&A...141..318B 1984AJ.....89..979B 1984ARA&A..22..319B 1984Afz....20..351K 1984ApJ...276..440S 1984ApJ...277...43S 1984ApJ...277..481S 1984ApJ...279...19W 1984ApJ...287..538G 1984BAAS...16..519H 1984ComAp..10...47G 1984ComAp..10...75B 1984IAUC.3945....0F 1984MNRAS.210...79N 1984Natur.310..112N 1984Sci...223.1255T 1983A&A...128..156K 1983ApJ...268L..57S 1983BAAS...15..936C 1983BAAS...15..936Z 1983MNRAS.203..861C 1983MmSAI..54..665S 1983Msngr..31...28S 1983PAZh....9..524M 1983S&T....66..390G 1983Sci...219...54G 1982ApJ...255...20K 1982Natur.296..415G 1981ApJ...243L..57H 1981ApJ...244..736Y 1981ApJ...244..756Y 1981ApJ...249..415Y 1981LicOB.824....1M 1981MitAG..52..132S 1981Natur.289..758P 1980AJ.....85.1555W 1980ApJ...237..319W 1980ApJ...238....1W 1980ApJ...241..507Y 1980IUE2n......295G 1980Natur.285..461G 1980Sci...208..495G 1980XXHI.........0. 1979ApJ...233L..43W 1979Natur.279..381W 1979Natur.282..271H 1979Natur.282..561C Measures (herschel:1 PLX:1 PM:2 velocities:10 ): herschel:1PLX:1PM:2velocities:10 Notes (3) : (S) 05-Apr-2006 - dc ref:~ obj:QSO B0957+561 lensed by \object{YGKOW G1}, lensed images are \object{[RGH85] A} and \object{[RGH85] B} (S) 20-Apr-2015 - bc ref:~ obj:1RXS J100121.5+555351 The X-ray source 1RXS J100121.5+555351 was identified with the active galaxy nucleus \object{SDSS J100120.84+555349.6} by Anderson et al. (2007AJ....133..313A). (S) 12-Nov-2015 - bc ref:~ obj:GB6 B0957+5608 See also \vizier{VIII/85A/spectra}{Seq= 40882 }{Specfind radio flux densities}. ================================================================================