22 Tau

Query : 22 Tau
C.D.S. - SIMBAD4 rel 1.5.11 - 2017.03.24CET17:01:28

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
* 22 Tau -- Double or multiple star
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
* (*,AG,...), IR (IRAS,2MASS,...), ** (**,WDS), *iC (Cl*,Cl), UV (CEL)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
03 46 02.90043 +24 31 40.4331 (Optical) [ 6.41 5.70 90 ] A 2007A&A...474..653V
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK5 coord. (ep=J2000 eq=2000) :
03 46 02.900 +24 31 40.43 [ 6.41 5.70 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
03 43 03.86 +24 22 24.3 [ 36.94 33.13 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
166.0947 -23.3618 [ 6.41 5.70 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
19.88 -44.37 [0.73 0.65 0] A 2007A&A...474..653V
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, ~ =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) 6.90 [1.3] / z(~) 0.000023 [0.000004] / cz 6.90 [1.30]
   B 2006AstL...32..759G
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
8.58 [0.56] A 2007A&A...474..653V
Spectral type is made of 3 parts:
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality->E=worst quality, ~ =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
A0Vn C 1969AJ.....74..375C
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, ~ =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (6) :
B 6.402 [0.015] D 2000A&A...355L..27H
V 6.421 [0.010] D 2000A&A...355L..27H
I 6.41 [~] D 2007ApJS..172..663S
J 6.399 [0.026] C 2003yCat.2246....0C
H 6.48 [0.04] C 2003yCat.2246....0C
K 6.433 [0.024] C 2003yCat.2246....0C
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within radius arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (46) :

* 22 Tau Cl* Melotte 22 WCZ 121 HIP 17588 UBV M 41035
** OCC 193 Cl* Melotte 22 HII 859 HR 1152 UCAC3 230-19703
** HJL 1026B Cl Melotte 22 859 IRAS 03430+2422 uvby98 520220859
** HL 14A Cl Melotte 22 8591 JP11 4634 WDS J03459+2433Ba,Bb
AG+24 337 GAT 827 2MASS J03460288+2431403 WDS J03459+2433B
BD+24 556 GC 4506 PLX 803.01 YZ 24 1147
CEL 329 GCRV 2103 PPM 92850 [AKS95] 27
Cl* Melotte 22 K 26 GEN# +5.20220859 ROT 3760 [KSP2003] G166.0952-23.3613
Cl* Melotte 22 VM 1 GSC 01804-02521 SAO 76164 [KSP2003] J034603.05+243140.1
Cl* Melotte 22 MSH 121 HD 23441 SKY# 5729 [SCG94] O 106
Cl* Melotte 22 MSK 73 HGAM 266 TYC 1804-2521-1
Cl* Melotte 22 TRU 247 HIC 17588 UBV 3595

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References (130 between 1850 and 2017)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Measurements (17 types) :


GEN : 1    Hbet1 : 5    IRAS : 1    ISO : 5    IUE : 4    JP11 : 2    MK : 6    oRV : 4    PLX : 3    PM : 1    pos : 1    posa : 1   
ROT : 2    SAO : 1    UBV : 7    uvby1 : 5    velocities : 5   

   


External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 22 Tau

Link by name to the catalogue in VizieR :

AG+24 337 BD+24 556 GSC 01804-02521 HD 23441 HIC 17588
HIP 17588 HR 1152 IRAS 03430+2422 2MASS J03460288+2431403 PPM 92850
SAO 76164 TYC 1804-2521-1 UCAC3 230-19703 uvby98 520220859 WDS J03459+2433Ba,Bb
WDS J03459+2433B

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The list of all annotations to SIMBAD objects can be found here .

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2017.03.24-17:01:28

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