Theta2 Orionis B

Basic data :
* tet02 Ori B -- Young Stellar Object 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,*,...), X (COUP,CXOONC,...), Y*O (2012AJ,ISOY,...), ** (**,ADS,...), V* (AN,CSV,...), Rad ([FRM2016],[SEM2016]), NIR (2MASS,VISION), MIR (WISEA,WISE), UV (EUVE), IR (MLLA) 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) : 05 35 26.4007537560 -05 25 00.793767576 (Optical) [ 0.0306 0.0276 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) : 05 32 58.9737622869 -05 26 53.399707893 [ 0.0306 0.0276 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) : 209.0562119906590 -19.3595883754370 [ 0.0306 0.0276 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 : 1.161 0.162 [0.041 0.033 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) 28.5 [2] / z(~) 0.000095 [0.000007] / cz 28.50 [2.00]    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): 2.387 [0.0499] 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: B0.7V C 2020A&A...639A..81B 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 5.36 [~] C 2002yCat.2237....0D B 6.29 [~] C 2002yCat.2237....0D V 6.38 [~] C 2002yCat.2237....0D R 6.29 [~] C 2002yCat.2237....0D G 6.301930 [0.002784] C 2020yCat.1350....0G I 11.050 [0.110] C 2009ApJS..183..261D J 6.2850 [0.024] C 2019A&A...622A.149G H 6.278 [0.038] C 2003yCat.2246....0C K 6.2420 [0.016] C 2019A&A...622A.149G	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!).

HD 37042	GEN# +1.20037041	SAO 132322	[FBG2002] 916
* tet02 Ori B	GEN# +9.00010714	SKY# 9033	[FDM2003] X 602
** STF 4016B	GEN# +2.19760714	SV* ZI 435	[FRM2016] 547
ADS 4188 B	GSC 04774-00934	TIC 427395058	[GCS95] 280
ADS 4188 F	HGAM 443	TYC 4774-934-1	[H97b] 2031
ALS 16182	ISOY J053526.40-052500.9	UBV M 51701	[HC2000] 76
AN 107.1910	JP11 5717	UBV 5524	[MGM2012] 1748
BD-05 1320	JP11 5718	uvby98 900010714	[OW94] 264-501
Brun 714	JP11 5716	VISION J05352639-0525007	[S58] 163
COUP 1360	2MASS J05352639-0525007	WDS J05354-0525B	[SEM2016] 891
COUP J053526.4-052500	MLLA 119	WEB 5135	[TVZ96] 230
CSV 100599	NSV 2326	WH 297	Gaia DR3 3017360833515044480
CXOONC J053526.4-052500	Parenago 2031	WISEA J053526.42-052500.8	Gaia DR1 3017360829207709568
EUVE J0535-05.4	PMC 90-93 4662	WISE J053526.42-052500.8	Gaia DR2 3017360833515044480
GC 6936	PPM 188226	YZ 95 1668
GCRV 3423	ROT 881	[DRS2009] 55

References (191 between 1850 and 2023) (Total 191) 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

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Theta2 Orionis B

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