V* V1687 Cyg

Query : V* V1687 Cyg
C.D.S. - SIMBAD4 rel 1.5.11 - 2017.07.21CEST00:37:10

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


Basic data :
HD 193793 -- Wolf-Rayet Star
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:
* (HD,AG,...), ** (**,ADS,...), WR* (Ref,MR,...), IR (AKARI,IRAS,...), Em* (EM*,[KW97]), V* (NSV,V*), UV (CEL,TD1), X (1ES,1RXS), SB* (SBC9)
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) :
20 20 27.9765 +43 51 16.281 (Optical) [ 0.410 0.319 0 ] A 2016A&A...595A...2G
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) :
20 20 27.977 +43 51 16.28 [ 0.410 0.319 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 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) :
20 18 46.71 +43 41 42.9 [ 18.505 16.503 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 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) :
080.9303 +04.1771 [ 0.410 0.319 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 :
-5.20 -1.63 [0.37 0.33 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) 3.10 [1] / z(~) 0.000010 [0.000003] / cz 3.10 [1.00]
   B 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):
0.25 [0.42] 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:
WC7p+O5 C 2011ARep...55...31S
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 6.90 [~] C 2002yCat.2237....0D
B 7.25 [~] C 2002yCat.2237....0D
V 6.85 [~] C 2002yCat.2237....0D
R 4.58 [~] D 2011AstL...37...30T
J 5.547 [0.018] C 2003yCat.2246....0C
H 5.429 [0.023] C 2003yCat.2246....0C
K 5.037 [0.016] C 2003yCat.2246....0C
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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!).
Some important notes on this object about identifications and objects associations.
notes:

  • HIC 100287 includes the components CCDM J20205+4351 A and CCDM J20205+4351 B


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (45) :

HD 193793 EM* CDS 1159 LS III +43 7 TYC 3164-1678-1
** BU 1207 1ES 2018+43.6 2MASS J20202798+4351164 UBV 17647
ADS 13736 AB Gaia 2081261368330789632 MCW 874 UBV M 24766
AG+43 1809 GC 28303 MR 107 UCAC3 268-193927
AKARI-IRC-V1 J2020280+435114 GCRV 12706 NSV 13030 V* V1687 Cyg
ALS 11192 GOS G080.93+04.18 01 PLX 4850 WDS J20205+4351AB
BD+43 3571 GSC 03164-01678 PPM 59749 WR 140
CCDM J20205+4351AB HIC 100287 1RXS J202028.5+435111 [KW97] 45-31
CEL 5033 HIP 100287 SAO 49491 [SKV93] 4-61
CMC 413912 IDS 20171+4332 AB SBC9 1232
CSI+43 3571 1 IRAS 20187+4341 SKY# 38412
DO 38301 JP11 3234 TD1 26580

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References (609 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).
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Measurements (18 types) :


CEL : 1    distance : 1    Einstein : 1    GEN : 1    herschel : 6    ISO : 4    IUE : 87    JP11 : 2    MK : 10    oRV : 7    PLX : 6    PM : 3   
pos : 3    posa : 1    TD1 : 1    UBV : 5    V* : 1    velocities : 8   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* V1687 Cyg

Link by name to the catalogue in VizieR :

HD 193793 AG+43 1809 ALS 11192 BD+43 3571 CCDM J20205+4351AB
DO 38301 GSC 03164-01678 HIC 100287 HIP 100287 IRAS 20187+4341
LS III +43 7 2MASS J20202798+4351164 NSV 13030 PPM 59749 1RXS J202028.5+435111
SAO 49491 TYC 3164-1678-1 UCAC3 268-193927 V* V1687 Cyg WDS J20205+4351AB

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2017.07.21-00:37:10

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