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BLASTA Leicester Database and Archive Service
 
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BLASTA: Browser Help

Catalogues supported

Name Resolver

Uses SIMBAD name resolver to generate co-ordinates for object given. Enter source name and press "Resolve Name" button.

Search Coordinates

 Alternatively, enter coordinates in the box supplied, either in sexigesimal format, for example

12 34 56.67, -23 45 56
8 55 -27

or decimal degrees, for example

123.4567, -45.678

Search Type

Choose the shape of the search region (circular, square, rectangular) and the size of the search region in arcminutes.

Sort by

Sort output list by distance from search centre (in arcminutes), increasing right ascension or declination, or stellar magnitude.

Output format

Output search results as an HTML table, a "plain" (space-delimited) ASCII table, or an ASCII table with a user-supplied delimiting character.

Output co-ordinates in:

Give stellar co-ordinates in decimal or sexigesimal format.

Output system:

Give stellar co-ordinates in Equatorial, Ecliptic or Galactic system.

Output equinox:

Give stellar co-ordinates in J2000 or B1950 epoch.

Magnitude limits:

Show stars between upper and lower magnitude limits. See note below regarding accuracy of astrometry for bright stars in USNO-A2.

Number of output lines:

Restrict the output to the first n lines (default 100).

BLASTA is powered by WCSTools software. WCSTools is created by Doug Mink of Harvard CfA.
 
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