Chi Draconis

Query : Chi Draconis
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.19CET17:54:25

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


Basic data :
* chi Dra -- 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:
* (*,AG,...), PM* (Ref,Ci,...), IR (AKARI,IRAS,...), X (2E,RX,...), ** (**,CCDM,...), SB* (Ref,SBC7,...), V* (NSV), 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) :
18 21 03.38255 +72 43 58.2518 (Optical) [ 9.06 8.26 88 ] 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) :
18 21 57.49215 +72 42 41.9825 [ 52.16 47.86 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) :
103.45634251 +28.05705517 [ 9.06 8.26 88 ]
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 :
531.21 -349.71 [1.03 0.94 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) 31.90 [0.14] / z(~) 0.000106 [0.000000] / cz 31.90 [0.14]
   A 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):
124.11 [0.87] 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:
F7V C 2001AJ....121.2148G
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 4.010 [0.010] C 1984A&AS...57..357O
B 4.070 [0.007] C 1993A&AS..100..591O
V 3.580 [0.009] C 1993A&AS..100..591O
R 3.14 [~] C 2002yCat.2237....0D
I 2.83 [~] C 2002yCat.2237....0D
G 3.2653 [0.0050] C 2018yCat.1345....0G
J 2.50 [~] C 2002yCat.2237....0D
H 2.22 [~] C 2002yCat.2237....0D
K 2.18 [~] C 2002yCat.2237....0D
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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:

  • * chi Dra B = GJ 713 B = WDS J18211+7244Ab. Not to be confused with WDS J18211+7244B


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (63) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* chi Dra GAT 106 LHS 3379 SBC9 1058
* chi Dra A GC 25122 LSPM J1821+7243 SKY# 33473
* 44 Dra GCRV 10880 LTT 15438 TD1 22471
* chi Dra B GEN# +1.00170153 2MASS J18210342+7243582 TYC 4437-1491-1
** LAB 5 GJ 713 N30 4088 UBV 15693
** BUP 182A GJ 713 A NLTT 46426 UBV M 22972
AG+72 496 GJ 713 B NSV 10749 USNO-B1.0 1627-00135815
AKARI-IRC-V1 J1821042+724356 HD 170153 PLX 4245 USNO 878
ASCC 49345 HIC 89937 PMC 90-93 494 WDS J18211+7244Aa,Ab
BD+72 839 HIP 89937 PPM 9830 WDS J18211+7244A
CCDM J18211+7245A HR 6927 RAFGL 2144S WEB 15359
Ci 20 1087 IDS 18229+7241 A ROT 2608 WISEA J182104.61+724354.5
CSI+72 839 1 IRAS 18220+7242 RX J1821.0+7243 Zkh 274
2E 1822.0+7242 IRC +70144 1RXS J182103.0+724342 [TSA98] J182101.59+724357.01
2E 4068 JP11 2982 SAO 9087 Gaia DR2 2266693630693473024
FK5 695 LFT 1413 SBC7 686

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References (368 between 1850 and 2019) (Total 368)
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 : 18    ROT : 3    PM : 9    Fe_H : 15    PLX : 3    MK : 20   

   

Observing logs


ISO : 2    herschel : 2    IUE : 12   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Chi Draconis

Link by name to the catalogue in VizieR :

AG+72 496 AKARI-IRC-V1 J1821042+724356 BD+72 839 CCDM J18211+7245A 2E 4068
FK5 695 GJ 713 GJ 713 A GJ 713 B HD 170153
HIC 89937 HIP 89937 HR 6927 IRAS 18220+7242 IRC +70144
LHS 3379 LSPM J1821+7243 2MASS J18210342+7243582 NLTT 46426 NSV 10749
PLX 4245 PPM 9830 RAFGL 2144S 1RXS J182103.0+724342 SAO 9087
TD1 22471 TYC 4437-1491-1 USNO-B1.0 1627-00135815 WDS J18211+7244Aa,Ab WDS J18211+7244A
WISEA J182104.61+724354.5 Gaia DR2 2266693630693473024

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2018.11.19-17:54:25

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