1 Cen

Query : 1 Cen
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.16CET18:10:25

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


Basic data :
* i Cen -- 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:
* (*,CD,...), PM* (Ref,Ci,...), IR (AKARI,IRAS,...), X (EXO,RE,...), SB* (Ref,SBC7,...), UV (2RE,TD1), 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) :
13 45 41.2448252 -33 02 37.399704 (Optical) [ 0.15 0.13 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) :
13 42 50.3079371 -32 47 29.627978 [ 9.00 8.00 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) :
315.8526225253 +28.4632718812 [ 0.15 0.13 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 :
-462.49 -146.49 [0.18 0.16 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) -21.50 [0.6] / z(~) -0.000072 [0.000002] / cz -21.50 [0.60]
   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):
51.54 [0.19] 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:
F2V C 2006AJ....132..161G
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 4.61 [~] C 2002yCat.2237....0D
B 4.61 [~] C 2002yCat.2237....0D
V 4.23 [~] C 2002yCat.2237....0D
R 3.90 [~] C 2002yCat.2237....0D
I 3.69 [~] C 2002yCat.2237....0D
G 4.0760 [0.0075] C 2018yCat.1345....0G
J 3.61 [~] C 2002yCat.2237....0D
H 3.347 [0.220] D 2003yCat.2246....0C
K 3.39 [~] 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!).

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

* i Cen GJ 525.1 PLX 3132.00 SKY# 25264
* 1 Cen HD 119756 PMC 90-93 360 SRS 30506
AKARI-IRC-V1 J1345409-330238 HIC 67153 PPM 291783 TD1 17029
CD-32 9603 HIP 67153 2RE J1345-330 TYC 7270-2399-1
Ci 20 800 HR 5168 2RE J134543-330249 UBV 12283
CPC 17 6990 IRAS 13428-3247 RE J134542-330239 UBV M 19687
CPD-32 3479 JP11 2420 RE J1345-330 uvby98 100119756
EXO 1342.8-3247 LTT 5342 ROT 1990 WEB 11823
FK5 506 2MASS J13454130-3302372 1RXS J134541.5-330232 WISEA J134540.88-330239.1
GC 18593 N30 3132 SACS 298 Gaia DR2 6171375049482587776
GCRV 8121 NLTT 35111 SAO 204812
GEN# +1.00119756 NSV 19951 SBC7 492
GJ 9459 PLX 3132 SBC9 777

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References (145 between 1850 and 2019) (Total 145)
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 : 1    PM : 6    Fe_H : 3    PLX : 4    MK : 11   

   

Observing logs


ISO : 1    herschel : 2   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 1 Cen

Link by name to the catalogue in VizieR :

AKARI-IRC-V1 J1345409-330238 CD-32 9603 CPD-32 3479 FK5 506 GJ 9459
GJ 525.1 HD 119756 HIC 67153 HIP 67153 HR 5168
IRAS 13428-3247 2MASS J13454130-3302372 NLTT 35111 NSV 19951 PLX 3132
PPM 291783 2RE J1345-330 2RE J134543-330249 1RXS J134541.5-330232 SAO 204812
TD1 17029 TYC 7270-2399-1 uvby98 100119756 WISEA J134540.88-330239.1 Gaia DR2 6171375049482587776

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Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
The list of all annotations to SIMBAD objects can be found here .

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2018.11.16-18:10:25

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