DT Vir

Basic data :
BD+13 2618 -- Eruptive 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: * (BD,ASCC,...), PM* (2013MNRAS,Ci,...), X (2E,1ES,...), V* (ASAS,CSV,...), ** (**,WDS), Er* (2017ARep,[GKL99]), UV (EUVE,2RE), RS* (2013AJ), 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) : 13 00 46.5566863405 +12 22 32.677229903 (Optical) [ 0.1015 0.0685 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) : 12 58 18.7513610748 +12 38 42.847761909 [ 0.1015 0.0685 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) : 311.8250445167967 +75.0860180920577 [ 0.1015 0.0685 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 : -628.715 -33.472 [0.184 0.133 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) -12.52 [0.0031] / z(spectroscopic) -0.000042 [0.000000] / cz -12.52 [0.00]    (Opt) A 2018MNRAS.475.1960F 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): 86.9010 [0.1170] 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: M0V C 1986AJ.....92..139S 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 (12) : U 12.314 [~] C 2010MNRAS.403.1949K B 11.233 [~] C 2010MNRAS.403.1949K V 9.750 [0.064] C 2012AcA....62...67K R 8.785 [~] C 2010MNRAS.403.1949K G 8.899140 [0.002932] C 2020yCat.1350....0G I 7.653 [0.015] C 2012AcA....62...67K J 6.437 [0.021] C 2003yCat.2246....0C H 5.786 [0.017] C 2003yCat.2246....0C K 5.578 [0.016] C 2003yCat.2246....0C g 10.499 [0.01] D 2012yCat.1322....0Z r 9.215 [0.01] D 2012yCat.1322....0Z i 8.278 [0.01] 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 points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to 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!).
Some important notes on this object about identifications and objects associations. notes: Unconfirmed planet detected, see Ross 458(AB) in the Extrasolar Planets Encyclopaedia.

BD+13 2618	G 61-27	PLX 2982.01	UCAC4 512-052485
** BEU 16	GJ 494 B	PM 12583+1239	USNO-B1.0 1023-00261371
** GDM 1AB	GJ 494 A	PM J13007+1222	V* DT Vir
ASAS J130047+1222.3	GJ 494	RBS 1203	VVO 4
ASCC 954910	GSC 00886-00839	2RE J1300+122	WDS J13008+1223AB
Ci 20 755	HIC 63510	2RE J130044+122308	WEB 11241
CSV 6977	HIP 63510	RE J130042+122245	WISEA J130046.11+122232.4
2E 2940	JP11 5151	Ross 458	Wolf 462
2E 1258.2+1238	LFT 964	RX J1300.7+1222	Zkh 191
1ES 1258+12.6	LHS 2665	1RXS J130047.2+122224	[FS2003] 0659
EUVE J1300+12.3	LSPM J1300+1222	StKM 2-896	[GKL99] 275
GCRV 7760	LTT 13752	SV* WR 86	[RHG95] 2045
GEN# +6.10010494	2MASS J13004666+1222325	TIC 88138162	[ZEH2003] RX J1300.7+1222 1
GEN# +0.01302618	MCC 140	TYC 886-839-1	Gaia DR2 3737308025028857600
G 60-57	NLTT 32600	UCAC2 36124151	Gaia DR3 3737308025029348608

References (348 between 1850 and 2024) (Total 348) 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

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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : DT Vir

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