Alnitak

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C.D.S. - SIMBAD4 rel 1.7 - 2019.02.19CET23:20:09

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations

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Basic data :
* zet Ori -- Double or multiple 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: * (*,BD,...), IR (AKARI,IRAS,...), X (2E,1ES,...), ** (CCDM,**,...), UV (CEL,EUVE,...), Em* (EM*), V* (AAVSO) 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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion), 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 40 45.52666 -01 56 33.2649 (Optical) [ 5.19 2.29 90 ] A 2007A&A...474..653V 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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion), 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) : 05 40 45.52666 -01 56 33.2649 [ 5.19 2.29 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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion), 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 38 14.04904 -01 58 02.9437 [ 29.59 14.00 0 ] 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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion), 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) : 206.45217900 -16.58516674 [ 5.19 2.29 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 : 3.19 2.03 [0.59 0.26 0] A 2007A&A...474..653V 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) 18.50 [1.3] / z(~) 0.000062 [0.000004] / cz 18.50 [1.30]    B 2007AN....328..889K 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): 4.43 [0.64] A 2007A&A...474..653V 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: O9.7Ib+B0III C 2014yCat....1.2023S 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 (5) : B 1.59 [~] E ~ V 1.79 [~] E ~ J 2.25 [0.31] E 2003yCat.2246....0C H 2.35 [0.23] D 2003yCat.2246....0C K 2.40 [0.28] D 2003yCat.2246....0C	SIMBAD with radius arcmin Interactive AladinLite view 2MASS DSS SDSSXMMIRACIRISGALEX VizieR photometry viewer    within radius 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!).

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Hierarchy : number of linked objects whatever the membership probability is (see description here ) : : 1 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 : 2 : 47 Display criteria : All >=90% stars galaxies radio IR <2 arcsec #ref>50

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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature. Identifiers (43) :

An access of full data is available using the icon Vizier near the identifier of the catalogue

CCDM J05408-0156AB	EM* MWC 509	JP11 1219	TD1 5127
* zet Ori	1ES 0538-01.9	2MASS J05404553-0156336	UBV 5783
* 50 Ori	EUVE J0540-01.9	MCW 349	uvby98 100037742
** STF 774AB	GC 7089	NAME Alnitak	WDS J05407-0157AB
ADS 4263 AB	GEN# +1.00037742	PLX 1301.00	WH 460
AKARI-IRC-V1 J0540454-015633	GSC 04771-01188	PLX 1301	XSS J05421-0225
BD-02 1338	HGAM 467	PPM 400076	[HJ56] 71
CEL 921	HIC 26727	ROT 907	[KSP2003] J054045.31-015636.8
CSI-02 1338 4	HIP 26727	1RXS J054045.4-015631	[YKK2000] B2
2E 1500	IRAS 05381-0158	SAO 132444	AAVSO 0535-02
2E 0538.2-0157	IRC +00081	SKY# 9258

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Plots and Images

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References (43 between 2014 and 2019) (Total 319) 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 :

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                 or select by : (not exhaustive, explanation here)

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Collections of Measurements

velocities : 1    PM : 2    PLX : 3    MK : 1   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

velocities (1)

 |typ|    Value    R   m.e.   |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------------
 |V  |   18.50        1.30    |B (    )|s , ,O   ,           |          |       |  |2007AN....328..889K|
 

pm (2)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   +3.19 [    0.59 ]|   +2.03 [    0.26 ]|ICRS|2007A&A...474..653V|
 

plx (3)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
m|   3.99    :   0.79       |1997A&A...323L..49P|
 

mk (1)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
m|  /   |O9.5Ib                              |1976AJ.....81..245E|
 

Observing logs

XMM : 1   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

xmm (1)

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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Alnitak

Link by name to the catalogue in VizieR :

CCDM J05408-0156AB	AKARI-IRC-V1 J0540454-015633	BD-02 1338	CEL 921	2E 1500
EUVE J0540-01.9	GSC 04771-01188	HIC 26727	HIP 26727	IRAS 05381-0158
IRC +00081	2MASS J05404553-0156336	PLX 1301	PPM 400076	1RXS J054045.4-015631
SAO 132444	TD1 5127	uvby98 100037742	WDS J05407-0157AB

Search by coordinates in Vizier (radius: 5 arcsec)

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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 .
The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

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report an error concerning the data of this object

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