Vega

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Basic data :
* alf Lyr -- Variable Star of delta Sct type 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,...), IR (AKARI,IRAS,...), ** (ADS,CCDM,...), PM* (LSPM,LTT,...), V* (V*,CSV,...), UV (CEL,EUVE,...), smm (JCMTSE,JCMTSF), dS* (Ref), X (1E) 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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 36 56.33635 +38 47 01.2802 (Optical) [ 3.51 2.81 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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 FK5 coord. (ep=J2000 eq=2000) : 18 36 56.336 +38 47 01.28 [ 3.51 2.81 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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 35 14.67 +38 44 09.8 [ 20.31 16.25 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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) : 067.4482 +19.2373 [ 3.51 2.81 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 : 200.94 286.23 [0.32 0.40 0] 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) -20.60 [0.2] / z(~) -0.000069 [0.000001] / cz -20.60 [0.20]    A 2006AstL...32..759G 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): 130.23 [0.36] A 2007A&A...474..653V Spectral type is made of 3 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 bibcode : bibcode of the spectral type reference Spectral type: A0Va C 2003AJ....126.2048G 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) : U 0.03 [~] C 2002yCat.2237....0D B 0.03 [~] C 2002yCat.2237....0D V 0.03 [~] C 2002yCat.2237....0D R 0.07 [~] C 2002yCat.2237....0D I 0.10 [~] C 2002yCat.2237....0D J -0.18 [~] C 2003yCat.2246....0C H -0.03 [~] C 2003yCat.2246....0C K 0.13 [~] C 2003yCat.2246....0C	SIMBAD with radius arcmin Interactive AladinLite view 2MASS DSS SDSSXMMIRACIRISGALEX VizieR photometry viewer    within radius 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!).

V* alf Lyr	GAT 1285	JCMTSF J183656.4+384709	SAO 67174
* alf Lyr	GC 25466	JP11 2999	SKY# 34103
* 3 Lyr	GCRV 11085	LSPM J1836+3847	TD1 22883
ADS 11510 A	GEN# +1.00172167	LTT 15486	TYC 3105-2070-1
AG+38 1711	GJ 721	2MASS J18365633+3847012	UBV 15842
AKARI-IRC-V1 J1836564+384703	GJ 721.0	N30 4138	UBV M 23118
ASCC 507896	HD 172167	NAME Vega	USNO-B1.0 1287-00305764
BD+38 3238	HGAM 706	NLTT 46746	USNO 882
CCDM J18369+3847A	HIC 91262	NSV 11128	uvby98 100172167 V
CEL 4636	HIP 91262	8pc 128.93	WDS J18369+3846A
CSI+38 3238 1	HR 7001	PLX 4293	WISE J183656.49+384703.9
CSV 101745	IDS 18336+3841 A	PLX 4293.00	Zkh 277
1E 183515+3844.3	IRAS 18352+3844	PMC 90-93 496	[HFE83] 1223
EQ 183456.7+384615.4	IRAS F18352+3844	PPM 81558
EUVE J1836+38.7	IRC +40322	RAFGL 2208
FK5 699	JCMTSE J183656.4+384709	ROT 2633

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References (2327 between 1850 and 2017) Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

number of references only bibcodes reference summary number of references by 1st author number of references by year number of references by journal from: to:

Measurements (20 types) :

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Vega

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