MASHPNCAT ivo://nasa.heasarc/mashpncat NASA/GSFC HEASARC Parker et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The first part of the Macquarie/AAO/Strasbourg H-alpha Planetary Nebula Catalog (MASH) contains 903 new true, likely and possible Galactic planetary nebulae (PNe) discovered in the AAO/UKST H-alpha survey of the southern Galactic Plane. The combination of depth, resolution, uniformity, and areal coverage of the H-alpha survey has opened up an hitherto unexplored region of parameter space permitting the detection of this significant new PN sample. The second part, MASH-II, consists of over 300 true, likely and possible new Galactic PNe found after re-examination of the entire AAO/UKST H-alpha survey of the Southern Galactic Plane in digital form. Over 240 of these new candidates were confirmed as bona fide PNe on the basis of spectroscopic observations. This HEASARC table contains all 1238 objects from the combined MASH and MASH-II catalogs. This table was created by the HEASARC in April 2010 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/V/127A">CDS Catalog V/127A</a> files mash1.dat and mash2.dat. This is a service provided by NASA HEASARC . 2008MNRAS.384..525M https://heasarc.gsfc.nasa.gov/W3Browse/all/mashpncat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=mashpncat& GET text/xml 180 99999 true 181.41666667 -71.0325 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=mashpncat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_mashpncat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 NEBULA CATALOG 0.0833333333333333 Optical public mashpncat MASH Catalogs of MASH Planetary Nebulae pn_name Designation of PN Based on Galactic Position meta.id char nullable name Usual Designation of the PN meta.id;meta.main char nullable catalog_part Number [12] Indicates from Which Part of the Catalog Entry Originates meta.code short nullable source_type Flag [TLP] Indicates True, Likely, or Possible PN Nature src.class char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable major_diameter Major Diameter of the PN from H-Alpha Image (arcsec) arcsec phys.angSize.smajAxis double nullable minor_diameter Minor Diameter of the PN from H-Alpha Image (arcsec) arcsec phys.angSize.sminAxis double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable nebula_morphology Morphology of the Nebula src.morph.type char nullable central_star_type Type of Central Star meta.code.class char nullable bii Galactic Latitude degree pos.galactic.lat double nullable comments Notes and Comments meta.note char nullable telescope Telescope Used instr.tel char nullable field_number H-Alpha Survey Field Number meta.id;obs.field char nullable lii Galactic Longitude degree pos.galactic.lon double nullable obs_date Date of First Spectroscopic Observation mjd time.epoch;obs int nullable exposure_number H-Alpha Survey Exposure Number meta.id;time.duration;obs.exposure char nullable