C.D.S. - SIMBAD4 rel 1.8 - 2024.03.28CET14:36:23 NGC_721 ------- Object NGC 721 --- AG? --- OID=@1597461 (@@33401,15) --- coobox=12148 Coordinates(ICRS,ep=J2000,eq=2000): 01 54 45.4568560440 +39 23 00.771386892 (Opt ) C [0.9667 1.0982 90] 2020yCat.1350....0G Coordinates(FK4,ep=B1950,eq=1950): 01 51 45.8031447299 +39 08 18.610886116 Coordinates(Gal,ep=J2000,eq=2000): 136.0633622448425 -21.8681880669487 hierarchy counts: #parents=1, #children=0, #siblings=0 Proper motions: ~ ~ [~ ~ ] ~ ~ Parallax: ~ [~] ~ ~ Radial Velocity: 5597 [~] D 2020ApJ...902..145K Redshift: 0.018847 [~] D 2020ApJ...902..145K cz: 5650.24 [~] D 2020ApJ...902..145K Flux B : 13.8 [~] E ~ Flux G : 20.097324 [0.013571] C 2020yCat.1350....0G Flux J : 11.479 [0.048] C 2006AJ....131.1163S Flux H : 10.751 [0.060] C 2006AJ....131.1163S Flux K : 10.436 [0.067] C 2006AJ....131.1163S Spectral type: ~ ~ ~ Morphological type: SBb D ~ Angular size: 0.937 0.506 105 (NIR ) C 2006AJ....131.1163S Identifiers (13): Gaia DR3 344007437094869504 IRAS F01517+3908 IRAS 01517+3908 LEDA 7097 MAPS-PP O-1225-55093 MCG+06-05-043 NGC 721 UGC 1376 Z 522-56 2MASX J01544546+3923006 Z 0151.8+3908 UZC J015445.5+392300 Gaia DR2 344007437094578304 Bibcodes 1850-2024 () (46): 2021ApJ...914..121A 2020ApJ...896....3K 2020ApJ...902..145K 2020MNRAS.494.1784A 2019ApJS..244...24L 2018A&A...618A..81T 2017ApJ...837..120G 2016A&A...588A..14T 2016AJ....152...50T 2015AJ....149..171T 2015MNRAS.447.1531C 2014ApJ...792..129N 2014MNRAS.444..527S 2013AJ....146...86T 2012ApJS..199...26H 2011MNRAS.414.2005C 2011MNRAS.416.2840L 2009AJ....138.1938C 2009MNRAS.398..109W 2007A&A...465...71T 2006A&A...448...29B 2005ApJS..160..149S 2004A&A...414..905H 2003A&A...412...45P 2002ApJ...565..681R 2001ApJ...560..566K 2000ApJ...533..744T 1999A&AS..137..101M 1999A&AS..140...89P 1999AJ....117.1668H 1999AJ....117.2039H 1999ApJS..121..287H 1999ApJS..125..409C 1999PASP..111..438F 1998A&AS..128..299P 1998AJ....116.1094C 1997AJ....113...22G 1996AJ....111..591B 1995AJ....109..517B 1993AJ....105.1251W 1988AJ.....95..607H 1987A&A...175....9V 1986A&AS...64..247V 1985A&AS...60..261G 1985ApJ...292..404G 1984TrSht..54...33A Measures (distance:4 velocities:10 ): distance:4velocities:10 Notes (0) : ================================================================================