eps Aur

Query : eps Aur
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.15CET19:12:14

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
* eps Aur -- Eclipsing binary of Algol 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:
Al* (), * (*,AG,...), ** (ADS,CCDM,...), IR (IRAS,IRC,...), SB* (SBC7,SBC9), Em* (EM*,[KW97]), V* (V*,AAVSO), UV (TD1)
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 defined epoch and convolved with error on propermotion),
    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) :
05 01 58.1290610816 +43 49 23.871349520 (Optical) [ 0.4790 0.4589 90 ] A 2018yCat.1345....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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    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) :
04 58 22.5230470047 +43 45 05.412148320 [ 69.0018 37.5032 0 ]
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 defined epoch and convolved with error on propermotion),
    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) :
162.7882717563813 +01.1785299845986 [ 0.4790 0.4589 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 :
-0.86 -2.66 [1.38 0.75 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) -10.40 [0.4] / z(~) -0.000035 [0.000001] / cz -10.40 [0.40]
   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):
2.4144 [0.5119] A 2018yCat.1345....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:
A9Ia C 1989ApJS...69..301G
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 3.86 [~] C 2002yCat.2237....0D
B 3.53 [~] C 2002yCat.2237....0D
V 2.99 [~] C 2002yCat.2237....0D
R 2.47 [~] C 2002yCat.2237....0D
I 2.02 [~] C 2002yCat.2237....0D
G 2.7966 [0.0095] C 2018yCat.1345....0G
J 1.83 [~] C 2002yCat.2237....0D
H 1.702 [0.178] D 2003yCat.2246....0C
K 1.48 [~] C 2002yCat.2237....0D
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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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (49) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* eps Aur GEN# +1.00031964J N30 1068 TYC 2907-1275-1
* eps Aur GSC 02907-01275 NAME Almaaz UBV 4807
* 7 Aur HD 31964 PLX 1122 UBV M 10528
ADS 3605 A HIC 23416 PMC 90-93 131 UCAC3 268-74264
AG+43 552 HIP 23416 PPM 47627 uvby98 100031964 ABV
ALS 8131 HR 1605 RAFGL 670S WDS J05020+4349A
BD+43 1166 IDS 04548+4341 A RAFGL 670 WEB 4548
CCDM J05020+4350A IRAS 04583+4345 ROT 705 [KW97] 20-37
CSI+43 1166 1 IRC +40109 SAO 39955 AAVSO 0454+43
EM* CDS 456 JP11 959 SBC7 200 Gaia DR2 205499655242974464
FK5 183 LF 7 +43 70 SBC9 291
GC 6123 LS V +43 23 SKY# 7879
GCRV 2970 2MASS J05015812+4349241 TD1 3824

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References (550 between 1850 and 2019) (Total 550)
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 : 14    ROT : 4    PM : 6    Fe_H : 2    PLX : 3    MK : 15    V* : 1   

   

Observing logs


ISO : 4    herschel : 5    IUE : 486   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : eps Aur

Link by name to the catalogue in VizieR :

V* eps Aur AG+43 552 ALS 8131 BD+43 1166 CCDM J05020+4350A
FK5 183 GSC 02907-01275 HD 31964 HIC 23416 HIP 23416
HR 1605 IRAS 04583+4345 IRC +40109 LF 7 +43 70 LS V +43 23
2MASS J05015812+4349241 PLX 1122 PPM 47627 RAFGL 670S RAFGL 670
SAO 39955 TD1 3824 TYC 2907-1275-1 UCAC3 268-74264 uvby98 100031964 ABV
WDS J05020+4349A Gaia DR2 205499655242974464

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The list of all annotations to SIMBAD objects can be found here .

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2018.11.15-19:12:14

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