V* GT Peg

Query : V* GT Peg

Basic data :
V* GT Peg -- BY Dra 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:
* (HIP,AC,...), PM* (2013MNRAS,G,...), X (2009ApJ,1E,...), ** (**,WDS), V* (1SWASP,V*), UV (2EUVE,EUVE), BY* (2017ARep), Er* ([GKL99]), NIR (2MASS), MIR (WISEA)
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) :
22 51 53.5351209551 +31 45 15.192825225 (Optical) [ 0.0299 0.0326 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) :
22 49 29.9658420585 +31 29 20.992064234 [ 0.0299 0.0326 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) :
095.1594255312009 -24.5921540657385 [ 0.0299 0.0326 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 :
523.800 -48.320 [0.037 0.039 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) -2.284 [0.0032] / z(spectroscopic) -0.000008 [0.000000] / cz -2.28 [0.00]
   (Opt) A 2018A&A...616A...7S
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):
66.2052 [0.0435] 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:
M3.5Ve C 2013AJ....145..102L
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 (8) :
R 11.281 [0.03] D 2012yCat.1322....0Z
G 10.501047 [0.002863] C 2020yCat.1350....0G
J 7.697 [0.020] C 2003yCat.2246....0C
H 7.129 [0.018] C 2003yCat.2246....0C
K 6.874 [0.021] C 2003yCat.2246....0C
g 12.362 [0.05] D 2012yCat.1322....0Z
r 11.023 [0.06] D 2012yCat.1322....0Z
i 9.694 [0.05] D 2012yCat.1322....0Z
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
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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.
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 60 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (47) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HIP 112909 G 128-8 2MASS J22515345+3145153 USNO 681
** LAF 70A G 189-42 NLTT 55079 V* GT Peg
AC +31 70565 GJ 9799 PLX 5537 WDS J22519+3145A
AC +31 70565-0 GJ 875.1 PLX 5537.00 WEB 20107
ASCC 642809 HIC 112909 PM J22518+3145 WISEA J225153.97+314514.7
CSI+31-22495 Karmn J22518+317 1RXS J225153.6+314513 [FS2003] 1181
1E 2249.5+3129 LFT 1741 1SWASP J225154.86+314457.5 [GKL99] 436
2E 4641 LHS 3861 TIC 188878355 [RHG95] 3598
2E 2249.5+3129 L 1510-27 TYC 2749-801-1 Gaia DR3 1889703529122914560
2EUVE J2251+31.7 LSPM J2251+3145 UCAC2 43030795 Gaia DR1 1889703524825960960
EUVE J2251+31.7 LTT 16719 UCAC4 609-131443 Gaia DR2 1889703525209960960
GCRV 14355 2MASS J22515348+3145153 USNO-B1.0 1217-00598904

References (158 between 1850 and 2024) (Total 158)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

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Collections of Measurements


velocities : 10    V* : 3    distance : 4    ROT : 4    Fe_H : 9    PLX : 6    PM : 8    MK : 8   

   

Observing logs


ISO : 2   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* GT Peg

Link by name to the catalogue in VizieR :

HIP 112909 2E 4641 EUVE J2251+31.7 G 128-8 G 189-42
GJ 9799 GJ 875.1 HIC 112909 LHS 3861 LSPM J2251+3145
2MASS J22515348+3145153 2MASS J22515345+3145153 NLTT 55079 PLX 5537 1RXS J225153.6+314513
TYC 2749-801-1 UCAC2 43030795 UCAC4 609-131443 USNO-B1.0 1217-00598904 V* GT Peg
WDS J22519+3145A WISEA J225153.97+314514.7 [GKL99] 436 Gaia DR3 1889703529122914560 Gaia DR1 1889703524825960960
Gaia DR2 1889703525209960960

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