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 Database: FIRST
   Faint Images of the Radio Sky at Twenty cm (FIRST)
Database Index | Basic Search | Advanced Search
 Name Resolver
Name:

 Search Co-ordinates
Co-ords:

Co-ordinate system:
Equatorial Ecliptic Galactic
Equinox: 1950 2000

 Search Type
Cone search, radius: arcmin.
Square search, width: arcmin.
Rectangle search, size: arcmin
 Output Options
 Output coordinates in:
Decimal  Sexagesimal
 Output system:
Equatorial   Ecliptic   Galactic
 Output epoch:
J2000   B1950
 Output format:
Filter Search  
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Parameter
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Definition
 
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<- Sort by distance from search centre (default)
 NAME 
FIRST Source Designation
 RA 
Right Ascension
 DECL 
Declination
 LII 
Galactic Longitude
 BII 
Galactic Latitude
 SIDELOBE_PROB 
Probability That Source Is a Sidelobe
 FLUX_20_CM 
Peak Flux Density at 1.4GHz (mJy)
 INT_FLUX_20_CM 
Integrated Flux Density at 1.4GHz (mJy)
 FLUX_20_CM_ERROR 
Local Noise Estimate of Source (mJy)
 MAJOR_AXIS 
Major Axis FWHM (arcsecs)
 MINOR_AXIS 
Minor Axis FWHM (arcsecs)
 POSITION_ANGLE 
Position Angle of Major Axis (degrees)
 FIT_MAJOR_AXIS 
Fitted Major Axis before Deconvolution (arcsecs)
 FIT_MINOR_AXIS 
Fitted Minor Axis before Deconvolution (arcsecs)
 FIT_POSITION_ANGLE 
Position Angle of the Fitted Major Axis before Deconvolution (degrees)
 FIELD_NAME 
Name of the Image Containing the Source
 SDSS_MATCHES 
Number of SDSS Sources within 8 Arcsecs
 SDSS_FIRST_OFFSET 
Offset of Nearest SDSS Source
 SDSS_IMAG 
i Magnitude of Nearest SDSS Source
 SDSS_CLASS 
Morphological Class of Nearest SDSS Source
 TWOMASS_MATCHES 
Number of 2MASS Sources within 8 Arcsecs
 TWOMASS_FIRST_OFFSET 
Offset of Nearest 2MASS Source
 TWOMASS_KMAG 
K Magnitude of Nearest 2MASS Source
 MEAN_EPOCH 
Mean Observation Epoch
 RMS_EPOCH 
RMS of Observation Epoch

 Output number of lines:  
If you have any problems, please consult the help page or mail ledas-help@star.le.ac.uk
 
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