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 Database: TYCHO2
   Tycho-2 Catalog of the 2.5 Million Brightest Stars
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:
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Definition
 
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 NAME 
Tycho-2 Catalog Designation
 POSITION_FLAG 
Mean Position Flag
 MEAN_RA 
Mean Right Ascension ICRS (J2000)
 MEAN_DEC 
Mean Declination ICRS (J2000)
 PM_RA 
Proper Motion in Right Ascension (mas/yr)
 PM_DEC 
Proper Motion in Declination (mas/yr)
 MEAN_RA_ERROR 
Error in the Mean Right Ascension (mas)
 MEAN_DEC_ERROR 
Error in the Mean Declination (mas)
 PM_RA_ERROR 
Error in PM in Right Ascension (mas/yr)
 PM_DEC_ERROR 
Error in PM in Declination (mas/yr)
 MEAN_RA_EPOCH 
Epoch of the Mean Right Ascension (yr)
 MEAN_DEC_EPOCH 
Epoch of the Mean Declination (yr)
 NUM_POSITIONS 
Number of Positions Used
 GOF_MEAN_RA 
Goodness of Fit for Mean Right Ascension
 GOF_MEAN_DEC 
Goodness of Fit for Mean Declination
 GOF_PM_RA 
Goodness of Fit for Proper Motion in Right Ascension
 GOF_PM_DEC 
Goodness of Fit for Proper Motion in Declination
 BT_MAG 
Tycho-2 BT Magnitude
 BT_MAG_ERROR 
Error in BT Magnitude
 VT_MAG 
Tycho-2 VT Magnitude
 VT_MAG_ERROR 
Error in VT Magnitude
 PROXIMITY 
Proximity Indicator
 TYCHO1_STAR 
Flag Indicates Whether Star Was in the Original Tycho Catalog
 HIP_NUMBER 
Hipparchos Number
 CCDM_COMPONENTS 
CCDM Component Identifier
 RA 
Right Ascension
 DECL 
Declination
 LII 
Galactic Latitude
 BII 
Galactic Longitude
 OBSERVED_RA 
Observed Right Ascension in Degrees (ICRS)
 OBSERVED_DEC 
Observed Declination in Degrees (ICRS)
 OBSERVED_RA_EPOCH 
Epoch of the Observed Right Ascension (yr)
 OBSERVED_DEC_EPOCH 
Epoch of the Observed Declination (yr)
 OBSERVED_RA_ERROR 
Error in the Observed Right Ascension (mas)
 OBSERVED_DEC_ERROR 
Error in the Observed Declination (mas)
 SOLUTION_TYPE 
Type of Tycho-2 Solution
 RA_DEC_CORR 
RA-Dec. Correlation

 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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