GJ 402

Query : GJ 402
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.20CET00:25:20

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


Basic data :
Wolf 358 -- Variable of BY Dra type
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,ASCC,...), PM* (Ref,Ci,...), IR (2MASS,WISEA), BY* (Ref), V* (V*)
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) :
10 50 52.0312400722 +06 48 29.263582377 (Optical) [ 0.0556 0.0497 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) :
10 48 18.6933584145 +07 05 05.504245133 [ 5.3003 4.7503 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) :
242.7735636854731 +54.9119163864540 [ 0.0556 0.0497 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 :
-856.291 -818.845 [0.106 0.095 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) -1.04 [0.1] / z(~) -0.000003 [0.000000] / cz -1.04 [0.10]
   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):
143.4971 [0.0626] 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:
M4V B 1991ApJS...77..417K
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 (12) :
U 14.532 [0.0060] B 2009AJ....137.4186L
B 13.319 [0.003] B 1992AJ....104..340L
V 11.675 [0.003] B 1992AJ....104..340L
R 10.459 [0.003] B 1992AJ....104..340L
I 8.889 [0.0021] B 2009AJ....137.4186L
G 10.2785 [0.0008] C 2018yCat.1345....0G
J 7.319 [0.023] C 2003yCat.2246....0C
H 6.707 [0.051] C 2003yCat.2246....0C
K 6.371 [0.016] C 2003yCat.2246....0C
g 12.431 [0.05] D 2012yCat.1322....0Z
r 11.070 [0.03] D 2012yCat.1322....0Z
i 9.504 [0.06] D 2012yCat.1322....0Z
SIMBAD with radius arcmin
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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!).

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 : 138 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (38) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* EE Leo HIC 53020 2MASS J10505201+0648292 WEB 9640
ASCC 1040787 HIP 53020 NLTT 25500 WISEA J105051.41+064820.8
Ci 20 591 JP11 5135 8pc 177.46 Wolf 358
CSI+07-10483 JP11 5136 PLX 2524 Zkh 145
GCRV 6733 JP11 5134 PLX 2524.00 Zkh 146
GEN# +6.10010402 JP11 5137 PM 10483+0705 [RHG95] 1687
G 45-8 LFT 742 PM J10508+0648 Gaia DR2 3864615459886222464
G 44-40 LHS 294 TYC 261-224-1 Gaia DR1 3864615455592036992
GJ 402 LSPM J1050+0648 UCAC4 485-051902
GSC 00261-00224 LTT 12891 USNO-B1.0 0968-00215383

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References (203 between 1850 and 2019) (Total 203)
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    velocities : 5    PM : 9    Fe_H : 8    PLX : 6    MK : 9   

   

Observing logs


herschel : 2   

   


External archives :

Link by name to the catalogue in VizieR :

V* EE Leo G 45-8 G 44-40 GJ 402 GSC 00261-00224
HIC 53020 HIP 53020 LHS 294 LSPM J1050+0648 2MASS J10505201+0648292
NLTT 25500 PLX 2524 TYC 261-224-1 UCAC4 485-051902 USNO-B1.0 0968-00215383
WISEA J105051.41+064820.8 Gaia DR2 3864615459886222464 Gaia DR1 3864615455592036992

Search by coordinates in Vizier (radius: 20 arcsec)


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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2018.11.20-00:25:20

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