C.D.S. - SIMBAD4 rel 1.8 - 2024.07.04CEST16:24:46 PN Pe 1-21 ----------- Object PN Pe 1-21 --- PN --- OID=@2616181 (@@57765,11) --- coobox=18893 Coordinates(ICRS,ep=J2000,eq=2000): 18 57 49.642 -05 27 39.73 (~) D [~ ~ ] 2003A&A...408.1029K Coordinates(FK4,ep=B1950,eq=1950): 18 55 09.627 -05 31 44.30 Coordinates(Gal,ep=J2000,eq=2000): 028.790788 -03.904395 hierarchy counts: #parents=0, #children=0, #siblings=0 Proper motions: ~ ~ [~ ~ ] ~ ~ Parallax: ~ [~] ~ ~ Radial Velocity: -20 [~] D 1999ApJ...515..610B Redshift: -0.000067 [~] D 1999ApJ...515..610B cz: -20.00 [~] D 1999ApJ...515..610B Flux V : 16 [~] E ~ Spectral type: ~ ~ ~ Morphological type: ~ ~ ~ Angular size: 0.143 0.143 90 (Rad ) D 2008ApJ...689..194S Identifiers (8): GSC2 S300233233359 IRAS 18551-0531 PK 028-03 1 PN G028.7-03.9 PN Sa 3-150 PN VV' 469 PN Pe 1-21 PN Th 1-H Bibcodes 1850-2024 () (39): 2020A&A...638A.103C 2018A&A...616L...2K 2013MNRAS.431....2F 2011RMxAA..47...83P 2010ApJ...714.1096S 2008ApJ...689..194S 2004MNRAS.353..589P 2003A&A...405..627T 2003A&A...408.1029K 2002ApJ...576..285S 2001A&A...378..843K 2001RMxAA..37..115K 1999ApJ...515..610B 1998A&AS..132...13D 1998AJ....115.1989T 1998ApJS..117..361C 1997ApJS..112..487S 1995ApJS...98..659Z 1994A&AS..106..559T 1992A&AS...94..399C 1992A&AS...95..337T 1992ESOPN...1....1A 1991A&AS...90...89A 1989A&AS...77..487A 1989A&AS...79..329Z 1989Ap&SS.154...21A 1989ApJ...345..306L 1987A&AS...68...51S 1984A&AS...55..253M 1984Ap&SS.107...19A 1983A&AS...54..315A 1977A&AS...30..217A 1976PW&SO...2...57S 1974AJ.....79..129C 1973SSTor...5b...1I 1971ApJS...22..319C 1968BAICz..19....1K 1962CoBos..14....0T 1960BAICz..11..256P Measures (distance:2 ): distance:2 Notes (0) : ================================================================================