GJ176

Basic data :
HD 285968 -- High Proper Motion 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: * (2014AJ,ASCC,...), PM* (2013MNRAS,LHS,...), MIR (AKARI,WISEA), X (1RXS), NIR (2MASS), 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) : 04 42 55.7750207949 +18 57 29.395947044 (Optical) [ 0.0211 0.0083 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) : 04 39 58.1435361672 +18 52 48.336435371 [ 0.0211 0.0083 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) : 180.0153643472011 -17.4265144841244 [ 0.0211 0.0083 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 : 656.647 -1116.594 [0.027 0.016 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) 26.236 [0.0007] / z(spectroscopic) 0.000088 [0.000000] / cz 26.24 [0.00]    (Opt) A 2018A&A...616A...7S 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): 105.4275 [0.0210] 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: M2.5V C 2014MNRAS.438.2413V 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 12.668 [~] C 2010MNRAS.403.1949K B 11.49 [~] C 2010MNRAS.403.1949K V 9.951 [~] C 2010MNRAS.403.1949K R 8.931 [~] C 2010MNRAS.403.1949K G 9.004439 [0.002804] C 2020yCat.1350....0G I 7.702 [~] C 2010MNRAS.403.1949K J 6.462 [0.024] C 2003yCat.2246....0C H 5.824 [0.033] C 2003yCat.2246....0C K 5.607 [0.034] C 2003yCat.2246....0C g 10.718 [0.03] D 2012yCat.1322....0Z r 9.522 [0.18] E 2012yCat.1322....0Z i 8.314 [0.02] 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 points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to 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!).
Some important notes on this object about identifications and objects associations. notes: Substellar companion GJ 176b detected, see also GJ 176 in the Extrasolar Planets Encyclopaedia. Second and unconfirmed planet detected, GJ 176c , see GJ 176 in the Extrasolar Planets Encyclopaedia.

LHS 196	HD 285968	PLX 1046	USNO-B1.0 1089-00054746
AKARI-IRC-V1 J0442561+185721	HIC 21932	PLX 1046.00	VVO 203
ASCC 838914	HIP 21932	PM 04400+1853	WEB 4214
BD+18 683	IRAS 04399+1852	PM J04429+1857	WISEA J044256.24+185718.0
Ci 20 303	JP11 3797	Ross 33	Zkh 64
GCRV 2763	Karmn J04429+189	1RXS J044254.6+185718	[HFE83] 320
GEN# +1.00285968	LFT 372	TIC 397354290	[RHG95] 817
GEN# +0.01800683	LSPM J0442+1857	TYC 1275-2034-1	Gaia DR3 3409711211681795584
G 85-9	LTT 11495	UBV 4524	Gaia DR2 3409711211681795584
G 83-32	2MASS J04425581+1857285	UBV M 869	Gaia DR1 3409711211297795584
G 8-55	MCC 107	UCAC2 38384336
GJ 176	NLTT 13785	UCAC4 545-010524

References (314 between 1850 and 2023) (Total 314) 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

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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : GJ176

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