alpha Trianguli

Basic data :
* alf Tri -- 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: * (*,AG,...), X (1E,2E,...), PM* (2018yCat,LSPM,...), ** (CCDM,IDS,...), UV (2EUVE,EUVE,...), SB* (SBC7,SBC9), IR (IRAS,IRC), El* (2003AstL), V* (V*), NIR (2MASS) 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) : 01 53 04.9054187154 +29 34 43.747211027 (Optical) [ 0.4654 0.4013 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] : 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 FK5 coord. (ep=J2000 eq=2000) : 01 53 04.9077716584 +29 34 43.745800278 [ 0.4654 0.4013 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 FK4 coord. (ep=B1950 eq=1950) : 01 50 13.4397512144 +29 20 09.876377002 [ 0.4654 0.4013 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) : 138.6424297324931 -31.4054002239844 [ 0.4654 0.4013 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 : 12.341 -233.040 [0.851 0.860 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) -12.6 [0.9] / z(~) -0.000042 [0.000003] / cz -12.60 [0.90]    E 1953GCRV..C......0W 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): 51.3310 [0.5563] 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: F5III C 2009ApJS..180..117A 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 3.96 [~] C 2002yCat.2237....0D B 3.90 [~] C 2002yCat.2237....0D V 3.42 [~] C 2002yCat.2237....0D R 3.00 [~] C 2002yCat.2237....0D G 3.305076 [0.003806] C 2022yCat.1355....0G I 2.72 [~] C 2002yCat.2237....0D J 2.51 [~] C 2002yCat.2237....0D H 2.182 [0.206] D 2003yCat.2246....0C K 2.24 [~] C 2002yCat.2237....0D	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!).

* alf Tri	GEN# +1.00011443	NAME Mothallah	TIC 28244955
* 2 Tri	GJ 9062	NLTT 6290	TYC 1763-3028-1
AG+29 233	GJ 78.1	PLX 390	UBV 1876
ASCC 652427	GSC 01763-03028	PLX 390.00	UBV M 8470
BD+28 312	HD 11443	PMC 90-93 46	USNO-B1.0 1195-00024212
CCDM J01531+2935A	HIC 8796	PPM 91161	uvby98 100011443
CSI+28 312 1	HIP 8796	RBS 250	V* alf Tri
1E 0150.2+2919	HR 544	ROT 264	WDS J01531+2935A
2E 495	IDS 01474+2906 A	RX J0153.0+2934	WEB 1850
2E 0150.2+2919	IRAS 01502+2919	1RXS J015305.0+293440	[HFE83] 106
1ES 0150+29.3	IRC +30031	SAO 74996	[ZEH2003] RX J0153.0+2934 1
2EUVE J0153+29.5	JP11 547	SBC7 65	Gaia DR2 299464296906886016
EUVE J0153+29.5	LSPM J0153+2934	SBC9 94	Gaia DR3 299464296907113984
FK5 64	LTT 10647	SKY# 2767
GC 2272	2MASS J01530489+2934442	SRS 30064
GCRV 1046	N30 387	TD1 1077

References (15 between 2019 and 2024) (Total 287) 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

Collections of Measurements

velocities (10)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |  -16.2                |  (    )|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 

distance (1)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |   19.4814  pc  |  -0.2111     +0.2111  |paral   |2018yCat.1345....0G|
 

rot (3)

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
m|  81.6   [        ] (   )|D|2009A&A...493.1099S|
 

fe_h (6)

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 |  6400       |        |         |     |2011A&A...530A.138C|
 

plx (4)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
m|  50.87    :   0.82       |1997A&A...323L..49P|
 

pm (7)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |  +12.341[    0.851]| -233.040[    0.860]|ICRS|2018yCat.1345....0G|
 

mk (26)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
m|  /   |F6 IV                               |2003AJ....126.2048G|
 

iue (9)

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |HD 11443        :            |LEGTS|41|L SWP 24603 L|  911 FU|841203 084700|000090| |420|G|E=33,C=150,B=20     |*|1996IUEML.C......0I|
 

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : alpha Trianguli

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