MCC 159

Basic data :
BD-07 4003 -- BY Dra 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: * (2014AJ,BD,...), PM* (2013MNRAS,Ci,...), V* (NSV,V*), NIR (DENIS,2MASS), BY* (2017ARep), Ro* (2012A&A), MIR (WISEA) 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) : 15 19 26.8269387505 -07 43 20.189497466 (Optical) [ 0.0270 0.0210 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) : 15 16 50.3503816644 -07 32 24.984655537 [ 0.0270 0.0210 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) : 354.0776257523032 +40.0186970087399 [ 0.0270 0.0210 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 : -1221.278 -97.229 [0.037 0.027 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) -9.24 [0.0006] / z(spectroscopic) -0.000031 [0.000000] / cz -9.24 [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): 158.7183 [0.0301] 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: M3V C 1986AJ.....92..139S 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 13.403 [~] C 2010MNRAS.403.1949K B 11.76 [0.17] D 2000A&A...355L..27H V 10.560 [0.02] D 2012yCat.1322....0Z R 9.461 [~] C 2010MNRAS.403.1949K G 9.421787 [0.002835] C 2020yCat.1350....0G I 8.911 [0.03] C 2005yCat.2263....0D J 6.706 [0.026] C 2003yCat.2246....0C H 6.095 [0.033] C 2003yCat.2246....0C K 5.837 [0.023] C 2003yCat.2246....0C g 11.367 [0.16] E 2012yCat.1322....0Z r 10.025 [0.05] D 2012yCat.1322....0Z i 8.691 [0.05] 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 companions : GJ 581b discovered by Bonfils et al.(2005A&A...443L..15B), GJ 581c and GJ 581d by Udry et al. (2007A&A...469L..43U), GJ 581e by Mayor et al. (2009A&A...507..487M), see also Gl 581 in the Extrasolar Planets Encyclopaedia. Two additional but unconfirmed planets detected, GJ 581 f and g, see Gl 581 in the Extrasolar Planets Encyclopaedia.

BD-07 4003	HIP 74995	8pc 159.52	UCAC4 412-059591
Ci 20 923	JP11 273	PLX 3458	V* HO Lib
DENIS J151926.8-074319	Karmn J15194-077	PLX 3458.00	WEB 12795
GCRV 8863	LFT 1195	PM J15194-0743E	WISEA J151925.96-074321.2
GEN# -0.00704003	LHS 394	StKM 2-1135	Wolf 562
GES J15192557-0743217	LPM 564	TIC 36853511	Zkh 217
G 151-46	LTT 6112	TYC 5594-1093-1	[RHG95] 2420
G 152-9	2MASS J15192689-0743200	UBV 13194	Gaia DR3 6322070093095493504
GJ 581	MCC 159	UBV M 5243	Gaia DR2 6322070093095493504
GSC 05594-00593	NLTT 39886	UCAC2 29110263	Gaia DR1 6322069882641960448
HIC 74995	NSV 7023	UCAC3 165-136246

References (641 between 1850 and 2024) (Total 641) 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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