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User Specified Search Field

You may search on any column listed below. Where reasonable, the table lists the range of valid values or a set of sample values. A description of the column is also given. Note the column "label" is the name displayed on the search forms and in search results. The column "name" is the actual column name in the table and needs to be specified in GET requests.

From a MAST search form, simply select the column "label" in the forms pulldown menu and type in the qualification in the adjacent box. Note that if you specify constraints on the same column in more than one form element, they will all be included in the query and you may not get results you expect. In a HTTP GET request, specify the column "name" in the service request. (See the MAST Services web page for information on sumbitting GET requests.)


Column Name Column Label Description Examples/Valid Values Data Type
st_target Target Name Target name as specified in Skiff's catalog Examples: 10 Lac, HD 141556 char
st_string Spec Class Spectral classification as specified in Skiff's catalog. String is mixed case and matches must be exact. Only spectral types determined from spectra (viz.line and band strengths or ratios) are included, omitting those determined from photometry (e.g. DDO, Vilnius) or inferred from broadband colors or spectral energy distributions. B0Vpe char
st_ra Target RA Right Ascension (J2000) Range 0 to 360 deg double
st_dec Target Dec Declination (J2000) Range: -90 to +90 deg double
st_type TT Encoded spectral type TT specified as an integer (e.g., TT=12 for A stars). See the Spectral Classification Tables. Range: 0 and 10 to 56 (see table ?) long
st_subt tt Encoded spectral subtype specified as an integer. See the Spectral Classification Tables. Range: 0 for unknown, 10 to 20 for normal stars, 10-12 for novae, and 10-16 for supernovae (see table ?) long
st_lum LL Luminosity class specified as an integer from 10 to 35. See the Spectral Classification Tables. Example: 0 and 10 to 35 (see table ?) long
st_p1 P1 First encoded global peculiarity. Also indicates composites stars (p1=1). See the Spectral Classification Tables. Range: 0 to 9, 0 = unknown long
st_p2 P2 Second encoded global peculiarity (must have a different value from P1). See the Spectral Classification Tables. Range: 0 to 9, 0 = unknown long
st_p3 P3 third encoded peculiarity, specific to a particular type or group of spectral types. Note for composites, P3 and P4 specify the TT value of the secondary star (e.g., for an A secondary (TT=12), P3=1 and P4 = 2). See the Spectral Classification Tables. Range: 0 to 9, 0 = unknown long
st_p4 P4 fourth encoded peculiarity, specific to a particular type or group of spectral types. Note for composites, P3 and P4 specify the TT value of the secondary star (e.g., for an A secondary (TT=12), P3=1 and P4 = 2). See the Spectral Classification Tables. Range: 0 to 9, 0 = unknown long
st_rest unparsed text Part of original spectral clasification ignored or unable to be parsed in the encoding process. Mixed-case string char
st_date Pub. Year Year of paper in which spectral classification was first published (from Skiff's catalog) 2001 long
st_bibcode Bibcode Bibcode for latest publication found (from Skiff's catalog) char
st_mag Magnitude Magnitude (from Skiff's catalog) Magnitudes were provided as an indication of brightness, but these data are not necessarily accurate, as they often derive from photographic photometry or rough estimates. long
st_cflag D Flag Flags special cases needing further explanation. d=0 normal, d=1 a classification in which a decimal subtype was truncated to an integer value, d=2 a ambiguous classification such as kA3, d=3 an unparsed classification long
st_id st_id A sequential integer used internally as a unique ID. long
Column Name Column Label Description Examples/Valid Values Data Type