Beta Canum Venaticorum

Query : Beta Canum Venaticorum
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.20CET22:05:46

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


Basic data :
* bet CVn -- Spectroscopic 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:
* (Ref,*,...), PM* (Ref,Ci,...), IR (IRAS,IRC,...), ** (**,CCDM,...), X (1E,1RXS), UV (TD1), SB* (SBC7), V* (NSV)
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) :
12 33 44.5448195 +41 21 26.924857 (Optical) [ 0.11 0.14 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 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) :
12 31 22.2893438 +41 37 44.185492 [ 7.00 6.50 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) :
136.1331981623 +75.3140221665 [ 0.14 0.11 0 ]
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 :
-704.75 292.74 [0.13 0.14 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) 6.52 [0.09] / z(~) 0.000022 [0.000000] / cz 6.52 [0.09]
   A 2002ApJS..141..503N
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):
118.49 [0.20] 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:
G0V B 1989ApJS...71..245K
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 4.91 [~] C 2002yCat.2237....0D
B 4.86 [~] C 2002yCat.2237....0D
V 4.25 [0.05] C 2009ApJ...694.1085V
R 3.73 [~] C 2002yCat.2237....0D
I 3.42 [~] C 2002yCat.2237....0D
G 4.0147 [0.0047] C 2018yCat.1345....0G
J 3.20 [~] C 2002yCat.2237....0D
H 2.88 [~] C 2002yCat.2237....0D
K 2.72 [0.07] C 2009ApJ...694.1085V
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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.
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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (54) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Chara GEN# +1.00109358 N30 2905 TD1 16363
* 8 CVn GJ 475 NLTT 31117 TYC 3020-2541-1
* bet CVn HD 109358 NSV 5725 UBV M 18362
** BU 1433A HIC 61317 PLX 2895 UBV 11286
** BNU 4 HIP 61317 PLX 2895.00 USNO-B1.0 1313-00232014
AG+41 1128 HR 4785 PMC 90-93 334 uvby98 100109358
ASCC 409308 IRAS 12313+4137 PPM 53064 WDS J12337+4121Aa,Ab
BD+42 2321 IRC +40236 RAFGL 4852S WDS J12337+4121A
CCDM J12337+4121AB JP11 2236 ROT 1842 WEB 10914
Ci 20 718 LFT 924 1RXS J123341.3+412133 WISEA J123343.91+412130.1
1E 1231.3+4137 LHS 2579 SAO 44230 Zkh 181
FK5 470 LSPM J1233+4121 SBC7 466 Gaia DR2 1534011998570864256
GC 17127 LTT 13552 SKY# 23491
GCRV 7563 2MASS J12334454+4121270 SPOCS 537

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References (516 between 1850 and 2019) (Total 516)
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


distance : 2    diameter : 1    velocities : 20    ROT : 11    PM : 10    Fe_H : 65    PLX : 4    MK : 33    V* : 1   

   

Observing logs


ISO : 1    herschel : 2    IUE : 12   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Beta Canum Venaticorum

Link by name to the catalogue in VizieR :

AG+41 1128 BD+42 2321 CCDM J12337+4121AB FK5 470 GJ 475
HD 109358 HIC 61317 HIP 61317 HR 4785 IRAS 12313+4137
IRC +40236 LHS 2579 LSPM J1233+4121 2MASS J12334454+4121270 NLTT 31117
NSV 5725 PLX 2895 PPM 53064 RAFGL 4852S 1RXS J123341.3+412133
SAO 44230 TD1 16363 TYC 3020-2541-1 USNO-B1.0 1313-00232014 uvby98 100109358
WDS J12337+4121Aa,Ab WDS J12337+4121A WISEA J123343.91+412130.1 Gaia DR2 1534011998570864256

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

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2018.11.20-22:05:46

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