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TYCHO :The Tycho-2 Catalogue is an astrometric reference catalogue containing positions, proper motions and two-colour photometry for the 2.5 million brightest stars in the sky. The catalogue is based on observations made using the Hipparcos satellite
TYCHO/TYCHO :TYCHO filtersid:TYCHO/TYCHO.a
GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full TYCHO/TYCHO filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

TYCHO/TYCHO.B_MvB4194.964220.394219.083543.205014.00741.393887.246.62e-9TYCHO TYCHO B, revised by Mann & von Braun 2014
TYCHO/TYCHO.B_bes4196.924221.094234.303520.835012.50686.373596.916.12e-9TYCHO TYCHO B, Bessell 2000 calibration
TYCHO/TYCHO.B4280.004280.004280.003535.794973.00708.433793.836.51e-9TYCHO TYCHO B
TYCHO/TYCHO.V5340.005340.005340.004572.646690.201005.673712.194.0e-9TYCHO TYCHO V
X
TYCHO/TYCHO.V
Filter Description

Filter ID (?) :TYCHO/TYCHO.V
Description (?) :TYCHO V
Phot.System (?) :TYCHO
Detector Type (?) :Energy counter
Band Name (?) :V
Obs. Facility (?) :TYCHO
Instrument (?) :------
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λref (?) : 5277.95 5340 (Angstrom)
λmean (?) : 5321.86 5340 (Angstrom)
λcen (?) : 5232.14 ------- (Angstrom)
λeff (?) : 5243.42 5340 (Angstrom)
λpeak (?) : 5050.00 ------- (Angstrom)
λpivot (?) : 5277.95 ------- (Angstrom)
λphot (?) : 5270.33 ------- (Angstrom)
λmin (?) : 4572.64 ------- (Angstrom)
λmax (?) : 6690.20 ------- (Angstrom)
Weff (?) : 1005.67 ------- (Angstrom)
FWHM (?) : 978.26 ------- (Angstrom)
Af/AV (?) : 1.06 ------- ()
Fsun (?) : 189.35 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: ADPS

Transmission components: Filter + Instrumentid:TYCHO/TYCHO.V
 

You can download here the GaiaXPy base XML file for the full TYCHO/TYCHO filter set.
Please, take a look to GaiaXPy documentation for more information.

- GaiaXPy base XML file.

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.99504e-9(erg/cm2/s/A)
  ------- 3712.19(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : TYCHO/TYCHO.V/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.90766e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : TYCHO/TYCHO.V/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 3373.93(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : TYCHO/TYCHO.V/ST
 

Reference for calibration: Grossmann et al 1995, A&A, 304., 110


Filter added: 2010-04-17 05:58:58
Last update: 2021-07-27 20:43:09
TYCHO/TYCHO.V_bes5301.295346.615260.324555.366708.331063.673745.013.99e-9TYCHO TYCHO V, Bessell 2000 calibration
TYCHO/TYCHO.V_MvB5300.195352.175258.484519.236769.201133.553692.283.94e-9TYCHO TYCHO V, revised by Mann & von Braun 2014
 

Filter Plots

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If your research benefits from the use of the SVO Filter Profile Service, we would appreciate if you could include the following acknowledgement in your publication:

This research has made use of the Spanish Virtual Observatory (https://svo.cab.inta-csic.es) project funded by MCIN/AEI/10.13039/501100011033/ through grant PID2020-112949GB-I00

and we would appreciate if you could include the following references in your publication: