VW Cep

Basic data :
V* VW Cep -- Eclipsing Binary 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: * (HD,AG,...), PM* (2016ApJ,Ci,...), X (2015A&A,2E,...), ** (**,CCDM,...), UV (2EUVE,EUVE,...), SB* (SBC7,SBC9), V* (2012ApJ,V*), EB* (2017ARep), NIR (2MASS), MIR (WISEA), IR (IRAS), Opt (SDSS) 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) : 20 37 21.6316723003 +75 36 01.894463230 (Optical) [ 0.1019 0.0920 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) : 20 38 03.0655673174 +75 24 58.737614521 [ 0.1019 0.0920 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) : 109.2245316882522 +20.0580652006771 [ 0.1019 0.0920 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 : 328.009 538.119 [0.129 0.118 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) -7.90 [1] / z(~) -0.000026 [0.000003] / cz -7.90 [1.00]    B 2005MNRAS.357..497B 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): 37.6838 [0.1022] 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: G8V+K0V C 2011RAA....11..181Y Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode" maj-axis : major axis size (arc minutes) min-axis : minor axis size (arc minutes) angle : orientation angle (in degrees) (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam) quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the angular size reference Angular size (arcmin): 0.0117 0.0 231 (Opt) D 2001AJ....122.3466M 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 (11) : B 8.13 [~] E ~ R 7.0 [~] E 2003AJ....125..984M G 7.268617 [0.008280] C 2020yCat.1350....0G J 5.962 [0.050] C 2003yCat.2246....0C H 5.425 [0.029] C 2003yCat.2246....0C K 5.312 [0.017] C 2003yCat.2246....0C u (AB) 13.124 [0.007] C 2009ApJS..182..543A g (AB) 11.776 [0.005] C 2009ApJS..182..543A r (AB) 11.098 [0.004] C 2009ApJS..182..543A i (AB) 10.696 [0.006] C 2009ApJS..182..543A z (AB) 7.345 [0.001] C 2009ApJS..182..543A	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!).

HD 197433	GEN# +1.00197433	2MASS J20372151+7536014	TIC 333870949
** HEI 7	G 261-28	NLTT 49671	TYC 4585-3284-1
AG+75 860	GJ 9703	PLX 4937	UBV M 25110
ASCC 56171	GJ 1255	PPM 10614	USNO-B1.0 1656-00095177
BD+75 752	GJ 9703 A	2RE J2037+753	uvby98 100197433 ABV
CCDM J20374+7536AB	GJ 1255 A	2RE J203720+753551	V* VW Cep
Ci 18 2685	GJ 9703 B	RE J2037+753	WDS J20374+7536AB
Ci 20 1222	GJ 1255 B	RE J203718+753544	WEB 18377
2E 2038.0+7525	HIC 101750	RX J2037.2+7535	WISEA J203722.45+753607.2
2E 4406	HIP 101750	1RXS J203719.4+753554	2XMM J203721.6+753603
2EUVE J2037+75.6	IRAS 20381+7525	SAO 9828	[FS2003] 1081
EUVE J2037+75.5	LFT 1558	SBC7 827	[RHG95] 3222
EUVE J2037+75.6	LHS 3565	SBC9 1258	Gaia DR2 2278045985170934016
GC 28804	LSPM J2037+7536	SDSS J203721.90+753603.6	Gaia DR3 2278045985170934016
GCRV 12953	LTT 16039	SKY# 39041

References (546 between 1850 and 2023) (Total 546) 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

Collections of Measurements

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : VW Cep

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