SMCSTAR2 ivo://nasa.heasarc/smcstars2 NASA/GSFC HEASARC Meyssonnier, Azzopardi 2026-04-03 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Star This database table contains a list of H-alpha emission-line stars and small nebulae in the Small Magellanic Cloud (SMC) that were discovered in an objective-prism survey. This survey was performed through an H-alpha + [N II] interference filter using the 0.90m Curtis Schmidt telescope at Cerro Tololo Inter-American Observatory (CTIO). 1898 emission-line objects were detected in the main body of the SMC, almost quadrupling the number of those discovered in previous objective-prism surveys of the same region. Among these 1898 objects are newly discovered planetary nebulae, compact H II regions, and late-type stars. Continuum intensities, the shapes and strengths of the H-alpha emission line, co-ordinates and (where available) cross-identifications are provided for the listed objects. This version of the SMC H-alpha Emission-Line Stars and Small Nebulae Catalog of Meyssonnier and Azzopardi was created by the HEASARC in November 1997 based on the ADC/CDS machine-readable catalog J/A+AS/102/451. This is a service provided by NASA HEASARC . 1993A&AS..102..451M https://heasarc.gsfc.nasa.gov/W3Browse/all/smcstars2.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=smcstars2& GET text/xml 180 99999 true 12.7804 -73.9606 0.0333333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=smcstars2 GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_smcstars2&Action=More+Options&Action=Parameter+Search&ConeAdd=1 STAR CATALOG 0.0333333333333333 Optical public smcstars2 SMC H-Alpha Emission Stars/Nebulae bii Galactic Latitude degree pos.galactic.lat double nullable dec Declination degree pos.eq.dec;meta.main double nullable cross_id Cross Identification and Cluster Information char nullable "__x_ra_dec" System unit vector column double nullable lii Galactic Longitude degree pos.galactic.lon double nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable remark Flag Indicates Remark char nullable relative_intensity Estimate of Relative Intensity float nullable name Catalog Designation meta.id;meta.main char nullable class Browse Object Classification src.class short nullable catalog_number MA93 running catalog number short nullable slit_spectra Flag Indicates Spectral Data Exist char nullable type_flag Code Indicating Nature of Object char nullable "__y_ra_dec" System unit vector column double nullable catalog_number_flag Indicates doubtful nature char nullable spectrum_id Code Giving Spectral Features char nullable