* tau Boo

Query : * tau Boo

Basic data :
* tau Boo -- Rotating Variable
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,...), PM* (2000A&A,Ci,...), X (2015A&A,2E,...), ** (**,ADS,...), V* (CSV,NSV), MIR (AKARI,WISEA), Ro* (1996ApJ), UV (TD1), NIR (2MASS), IR (IRAS)
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • 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) : 		13 47 15.7381720026 +17 27 24.809555600 (Optical) [ 0.0689 0.0643 90 ] A 2020yCat.1350....0G
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • 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) : 		13 44 53.0645082361 +17 42 18.297140622 [ 0.0689 0.0643 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • 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) : 		358.9367359169750 +73.8889879970058 [ 0.0689 0.0643 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 : 		-468.923 63.469 [0.095 0.074 90] A 2020yCat.1350....0G
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) -16.03 [0.15] / z(~) -0.000053 [0.000001] / cz -16.03 [0.15]
   A 2002ApJS..141..503N
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): 		64.0470 [0.1093] A 2020yCat.1350....0G
Spectral type is made of 3 parts: %coding is composed of 4 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 %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type: 		F7IV-V C 2001AJ....121.2148G
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 (9) :
U 5.02 [~] C 2002yCat.2237....0D
B 4.98 [~] C 2002yCat.2237....0D
V 4.49 [0.05] C 2009ApJ...694.1085V
R 4.09 [~] C 2002yCat.2237....0D
G 4.356021 [0.002864] C 2020yCat.1350....0G
I 3.85 [~] C 2002yCat.2237....0D
J 3.62 [0.28] D 2003yCat.2246....0C
H 3.55 [0.24] D 2003yCat.2246....0C
K 3.36 [0.05] C 2009ApJ...694.1085V
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within 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!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 1 		: 1753 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (61) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* tau Boo GC 18637 N30 3139 TYC 1460-132-1
* 4 Boo GCRV 8140 NLTT 35234 UBV 12303
* tau Boo A GEN# +1.00120136 NSV 6444 USNO-B1.0 1074-00267954
** STT 270A GJ 527 A PLX 3144 uvby98 100120136
ADS 9025 A GJ 527 PMC 90-93 361 WDS J13473+1727A
AG+17 1387 GSC 01460-00132 PPM 130070 WEB 11837
AKARI-IRC-V1 J1347155+172724 HD 120136 RBS 1315 WISEA J134715.36+172725.6
ASCC 869404 HIC 67275 ROT 1996 2XMM J134715.6+172726
BD+18 2782 HIP 67275 RX J1347.2+1727 YZ 17 5012
CCDM J13473+1727A HR 5185 RX J1347.2+1726 [HFE83] 972
Ci 20 807 IDS 13425+1757 A 1RXS J134716.2+172733 [ZEH2003] RX J1347.2+1727 1
CSI+18 2782 1 IRAS 13448+1742 SAO 100706 Gaia DR3 1244571953471006720
CSV 7085 JP11 2426 SKY# 25297 Gaia DR2 1244571953471006720
2E 3138 LSPM J1347+1727 SPOCS 577
2E 1344.8+1742 LTT 14021 TD1 17060
FK5 507 2MASS J13471581+1727249 TIC 72506701

References (988 between 1850 and 2024) (Total 988)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 15    distance : 3    Fe_H : 48    V* : 1    diameter : 4    ROT : 9    PLX : 4    PM : 5    MK : 4   

   

Observing logs


ISO : 7    herschel : 2    IUE : 6    XMM : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : * tau Boo

Link by name to the catalogue in VizieR :

AG+17 1387 AKARI-IRC-V1 J1347155+172724 BD+18 2782 CCDM J13473+1727A 2E 3138
FK5 507 GJ 527 A GJ 527 GSC 01460-00132 HD 120136
HIC 67275 HIP 67275 HR 5185 IRAS 13448+1742 LSPM J1347+1727
2MASS J13471581+1727249 NLTT 35234 NSV 6444 PLX 3144 PPM 130070
1RXS J134716.2+172733 SAO 100706 TD1 17060 TYC 1460-132-1 USNO-B1.0 1074-00267954
uvby98 100120136 WDS J13473+1727A WISEA J134715.36+172725.6 Gaia DR3 1244571953471006720 Gaia DR2 1244571953471006720

Search by coordinates in Vizier (radius: 10 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object



Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:* tau Boo and select 'bookmark this link' or equivalent in the popup menu