68 Cyg

Query : 68 Cyg
C.D.S. - SIMBAD4 rel 1.7 - 2018.10.22CEST08:55:00

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


Basic data :
* 68 Cyg -- 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:
El* (), * (*,AG,...), X (2E,RX,...), UV (CEL,TD1), ** (**,WDS), SB* (SBC9), Em* (EM*), V* (V*), IR (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] : 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) :
21 18 27.1855667264 +43 56 45.388423736 (Optical) [ 0.1522 0.1639 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) :
21 16 35.1513665124 +43 44 05.141248546 [ 16.4008 16.0009 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 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) :
087.6100663106098 -03.8410756717517 [ 0.1639 0.1522 59 ]
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 :
5.088 -7.795 [0.328 0.320 90] A 2018yCat.1345....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) 1.0 [5] / z(~) 0.000003 [0.000017] / cz 1.00 [5.00]
   E 1953GCRV..C......0W
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):
1.7026 [0.1804] 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:
O7.5IIIn((f)) C 2011ApJS..193...24S
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 (7) :
U 4.05 [~] C 2002yCat.2237....0D
B 4.99 [~] C 2002yCat.2237....0D
V 5.00 [~] C 2002yCat.2237....0D
G 4.9618 [0.0017] C 2018yCat.1345....0G
J 5.036 [0.020] C 2003yCat.2246....0C
H 5.107 [0.031] C 2003yCat.2246....0C
K 5.114 [0.021] C 2003yCat.2246....0C
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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 (44) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* V1809 Cyg FK5 3701 LS III +43 19 SKY# 40569
* 68 Cyg GC 29823 2MASS J21182718+4356453 SV* SVS 2548
** TRN 32 GCRV 13394 MCW 980 TD1 27950
AG+43 1959 GEN# +1.00203064 N30 4710 TYC 3181-836-1
ALS 11807 GOS G087.61-03.84 01 PPM 61260 UBV 18413
BD+43 3877 GSC 03181-00836 ROT 3107 UBV M 25612
CEL 5290 HD 203064 RX J211827+43564 uvby98 100203064
CGO 620 HGAM 988 RX J2118.4+4356 WDS J21185+4357AB
2E 4463 HIC 105186 1RXS J211826.0+435635 WEB 19103
2E 2116.6+4344 HIP 105186 SAO 50690 XMMSL1 J211827.7+435646
EM* CDS 1232 HR 8154 SBC9 1295 Gaia DR2 1971467916750747264

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References (349 between 1850 and 2018) (Total 349)
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 : 1    velocities : 8    ROT : 2    PM : 6    Fe_H : 1    PLX : 2    MK : 20   

   

Observing logs


ISO : 4    IUE : 168   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 68 Cyg

Link by name to the catalogue in VizieR :

V* V1809 Cyg AG+43 1959 ALS 11807 BD+43 3877 CEL 5290
2E 4463 FK5 3701 GSC 03181-00836 HD 203064 HIC 105186
HIP 105186 HR 8154 LS III +43 19 2MASS J21182718+4356453 PPM 61260
1RXS J211826.0+435635 SAO 50690 TD1 27950 TYC 3181-836-1 uvby98 100203064
WDS J21185+4357AB Gaia DR2 1971467916750747264

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

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2018.10.22-08:55:00

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