GJ 229

Query : GJ 229

Basic data :
HD 42581 -- Eruptive Variable
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,BD,...), PM* (2013MNRAS,Ci,...), ** (**,WDS), Er* (1999A&AS,[GKL99]), X (2E,1RXS), V* (NSV), NIR (2MASS), MIR (WISEA), IR (IRAS)
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		06 10 34.6149358167 -21 51 52.656352926 (Optical) [ 0.0082 0.0137 90 ] A 2020yCat.1350....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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		06 08 28.1353780422 -21 50 35.111104748 [ 0.0082 0.0137 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		228.6122808272455 -18.4391805455049 [ 0.0082 0.0137 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 : 		-135.692 -719.178 [0.011 0.017 90] A 2020yCat.1350....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) 4.63 [0.0001] / z(spectroscopic) 0.000015 [0.000000] / cz 4.63 [0.00]
   (Opt) A 2018MNRAS.475.1960F
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): 		173.5740 [0.0170] A 2020yCat.1350....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: 		M1V 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 10.801 [~] C 2010MNRAS.403.1949K
B 9.607 [~] C 2010MNRAS.403.1949K
V 8.125 [~] C 2010MNRAS.403.1949K
R 7.164 [~] C 2010MNRAS.403.1949K
G 7.313471 [0.002764] C 2020yCat.1350....0G
I 6.121 [~] C 2010MNRAS.403.1949K
J 5.104 [0.037] C 2003yCat.2246....0C
H 4.39 [0.25] D 2003yCat.2246....0C
K 4.17 [0.23] D 2003yCat.2246....0C
g 10.109 [0.01] D 2012yCat.1322....0Z
r 8.840 [0.04] D 2012yCat.1322....0Z
i 7.516 [0.04] D 2012yCat.1322....0Z
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within 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!). sed-help-icon

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

The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 3 		Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (51) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 42581 HIP 29295 8pc 173.19A uvby98 100042581
** NAJ 1A IRAS 06084-2150 PLX 1430 VVO 206
BD-21 1377 JP11 1338 PLX 1430.00 WDS J06106-2152A
Ci 20 377 Karmn J06105-218 PM J06105-2151 WEB 5749
Ci 18 771 LFT 459 PPM 249953 WISEA J061034.53-215200.3
CPD-21 1138 LHS 1827 1RXS J061034.3-215154 YZ 111 2116
2E 1615 L 668-21 SAO 171334 Zkh 85
2E 0608.4-2150 LPM 230 StKM 2-430 [GKL99] 155
GCRV 3900 LTT 2475 TIC 124279525 [RHG95] 1021
GEN# +1.00042581 2MASS J06103462-2151521 TYC 5945-765-1 Gaia DR3 2940856402123426176
GJ 229 MCC 471 UBV M 11850 Gaia DR2 2940856402123426176
GSC 05945-00765 NLTT 16172 UBV 6238 Gaia DR1 2940856397828565760
HIC 29295 NSV 2863 UCAC4 341-011114

References (478 between 1850 and 2024) (Total 478)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 15    V* : 2    diameter : 1    distance : 3    ROT : 6    Fe_H : 33    PLX : 6    PM : 8    MK : 20   

   

Observing logs


herschel : 2    ISO : 3    IUE : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : GJ 229

Link by name to the catalogue in VizieR :

HD 42581 BD-21 1377 CPD-21 1138 2E 1615 GJ 229
GSC 05945-00765 HIC 29295 HIP 29295 IRAS 06084-2150 LHS 1827
2MASS J06103462-2151521 NLTT 16172 NSV 2863 PLX 1430 PPM 249953
1RXS J061034.3-215154 SAO 171334 TYC 5945-765-1 UCAC4 341-011114 uvby98 100042581
WDS J06106-2152A WISEA J061034.53-215200.3 [GKL99] 155 Gaia DR3 2940856402123426176 Gaia DR2 2940856402123426176
Gaia DR1 2940856397828565760

Search by coordinates in Vizier (radius: 15 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 .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object



Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:GJ 229 and select 'bookmark this link' or equivalent in the popup menu