* bet Lyr

Basic data :
* bet Lyr -- 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: * (*,AG,...), ** (**,ADS,...), IR (IRAS,IRC,...), SB* (SBC7,SBC9), V* (V*,AAVSO), X (2E,1RXS), EB* (2009AJ), Em* (EM*), Rad (RORF), UV (CEL), NIR (2MASS) 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) : 18 50 04.7952472 +33 21 45.609978 (Optical) [ 0.12 0.15 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] : 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) : 18 48 13.9404172 +33 18 12.460322 [ 0.12 0.15 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) : 063.1876119048 +14.7834605414 [ 0.12 0.15 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 : 1.90 -3.53 [0.12 0.20 90] 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) 2.20 [0.7] / z(~) 0.000007 [0.000002] / cz 2.20 [0.70]    A 2004A&A...424..727P 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): 3.39 [0.17] A 2007A&A...474..653V 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: B8.5Ib-II C 1986ApJ...304..688A 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 2.85 [~] C 2002yCat.2237....0D B 3.42 [~] C 2002yCat.2237....0D V 3.42 [~] C 2002yCat.2237....0D R 3.31 [~] C 2002yCat.2237....0D G 3.604878 [0.015088] C 2020yCat.1350....0G I 3.29 [~] C 2002yCat.2237....0D J 3.35 [~] C 2002yCat.2237....0D H 3.31 [~] C 2002yCat.2237....0D K 3.11 [~] C 2002yCat.2237....0D	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!).

* bet Lyr	EM* MWC 306	2MASS J18500479+3321455	SBC9 1092
* 10 Lyr	FK5 705	N30 4183	SKY# 34642
** STF 4039A	GC 25847	NAME Sheliak	SRS 30705
** BU 293A	GCRV 11294	PLX 4353	TIC 28569279
** RBR 11	GEN# +1.00174638A	PMC 90-93 500	TYC 2642-2929-1
ADS 11745 A	GSC 02642-02929	PMSC 18464+3314Aab	UBV 21442
AG+33 1690	HD 174638	PPM 81887	UBV M 23269
ALS 19761	HIC 92420	RAFGL 5305S	V* bet Lyr
BD+33 3223	HIP 92420	Renson 48890	WDS J18501+3322Aa,Ab
CCDM J18501+3322A	HR 7106	RORF 1848+333	WDS J18501+3322A
CEL 4657	IDS 18464+3315 A	1RXS J185006.6+332123	WEB 15967
CSI+33 3223 1	IRAS 18482+3318	SAO 67452	[HFE83] 1239
2E 4146	IRC +30343	SAO 67451	AAVSO 1846+33
2E 1848.2+3318	JP11 3029	SBC7 710	Gaia DR3 2090687795056051328

References (922 between 1850 and 2023) (Total 922) 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 : * bet Lyr

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