J/PASP/120/380ivo://CDS.VizieR/J/PASP/120/380doi:10.26093/cds/vizier.61200380CDSWeidmann W.A.Diaz R.J.2025-09-09T14:13:26Z2008-10-07T14:25:33ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frplanetary-nebulaeWe analyze the spatial orientation of a homogeneous sample of 440 elongated Planetary Nebulae (PNe) in order to determine the orientation of their apparent major axis with respect to the Milky Way plane. We present some important geometrical and statistical considerations that have been overlooked by previous works on the subject. The global distribution of galactic position angles (GPA) of PNe is quantitatively not very different from a random distribution of orientations in the Galaxy. Nevertheless, we find that there is at least one region on the sky, toward the Galactic center, where a weak correlation may exist between the orientation of the major axis of some PNe and the Galactic equator, with an excess of axes with GPA~100{deg}. Therefore, we confirm that extrinsic phenomena (i.e., global Galactic magnetic fields, shell compression from motion relative to the Interstellar Medium) do not determine the morphology of PNe on most of the sky, with a possible exception toward the Galactic center.2008PASP..120..380Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/120/380CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/127 : MASH Catalogues of Planetary Nebulae (Parker+ 2006-2008)IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001)V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)J/AN/323/484 : Accurate coordinates of Planetary Nebulae (Kohoutek+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASP/120/380https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASP/120/380http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASP/120/380https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PASP/120/380https://vizier.iucaa.in/viz-bin/votable?-source=J/PASP/120/380http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PASP/120/380GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/PASP/120/380/table1 (PN Data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASP/120/380/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/PASP/120/380/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASP/120/380/table1?GETtext/xml+votable180.050000true268.2433333-29.88972220.0055555555555555565/7217 7221 6/1051 1238 1399 1562 1930 2993 3059 3771 3819 6292 12907 12981 12983 12992 13040 13048 13055 13076 13149 13225 13297 13786 13814 13968 14008 14048 14060 14076 14118 14172 14198 14214 14226 14245 14258 14303 14320 14356 14390 14402 14429 14440 14443 14462 14592 14596 14606 14608 14610 14642 14644 14709 14719 14736 14743 14786 14796 14853 15377 15379 15384 15413 15428 15472 15508 15552 15561 15621 15639 15681 15693 15721 15739 15741 15750 15752 22478 23389 23576 23616 23626 23658 23663 23704 23830 23949 24008 24036 24379 24395 24555 28686 28701-28703 28710-28711 28713-28714 28716-28718 28721 28728 28730 28733 28735 28754 28765 28771-28772 28777 28779-28780 28782-28783 28798-28799 28802 28805 28818 28820 28822-28823 28825 28835 28837 28840 28842 28844 28849 28854-28855 28861 28863 28865-28867 28872-28873 28876 28879 28881 28893 28898 28905-28906 28908 28917 28920 28923 28975 29022 29058 29066 29081 29088-29089 29092 29094 29096 29099 29105 29109 29119 29121 29130 29154 29161 29166 29182 29185 29189 29193 29200-29201 29207 29210 29212-29213 29250 29253-29254 29257 29259 29266-29267 29272 29277 29285-29286 29292 29297 29306 29317 29326 29393 29405 29427 29446 29451 29454 29457 29459 29470 29476 29481 29520 29523 29531 29534 29541 29547 29566 29654 29718 29743 29866 29868 29886 30208 30212 30217 30222-30223 30225-30227 30249 30255 30258 30265 30349 30379 30803 30806 31095 36938 37110 37191 37235 37245 37247 37277 37310 37323 37335-37337 37348 37361 37363 37693 37701 37703 37705 37708 37710 37724 37731-37734 37739 37745 37753 37848 37864 37895 37913-37914 37918 37929-37930 37934 37941 37959 37962 37982 38028 38041 38062 38064 38105 38432 38436 38475 38512 38541-38542 38563 39194 39234 39261 39279 39283 39291 39405 39407 39419 39702 39795 39801 39822 39860 39873 39956 40075 40114 40130 40525 40577 41608 41640-41641 42005 42056 42088 42094-42095 42099 42109 42125 42138 42142 42148 42157 42160 42162-42163 42167-42168 42174 42185 42194 42209 42215 42230 42234 42237 42296 42306 42312-42313 42355 42358 42361 42374-42375 42383 42387 42389 42396 42403 42410 42413 42422 42435 42437 42440 42446 42464 42479 42481 42494-42495 42511-42512 42514 42534 42577 42579 42599 42601 42621 42691 42709 42711 42771 42792 42811 42837 42872 43011 43016 43046 43053-43054 43579 43648 47618 47627 47663 47793 47859 48107https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PASP/120/380?format=asciidefaultJ/PASP/120/380/table1PN DatarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePN namemeta.id;meta.maincharEPA? Position angle of the projected major axis (1)degpos.posAngintnullableGPA? Galactic position angledegpos.posAng;pos.galacticintnullableSourceReferences (2)meta.refcharMASHDisplay the details from MASH for this PNmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainSimbadNameSimbad column added by the CDSmeta.idcharnullable