Gamma Ursae Majoris

Query : Gamma Ursae Majoris
C.D.S. - SIMBAD4 rel 1.7 - 2018.12.16CET08:27:16

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


Basic data :
* gam UMa -- Emission-line 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:
* (*,AC2000,...), IR (IRAS,IRC,...), ** (**,WDS), V* (CSV,NSV), UV (CEL,TD1), X (RX,1RXS), Em* (EM*), PM* (Ref)
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) :
11 53 49.8473166 +53 41 41.135025 (Optical) [ 0.22 0.25 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
FK4 coord. (ep=B1950 eq=1950) :
11 51 12.5046773 +53 58 22.025337 [ 14.50 14.50 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) :
140.8399090759 +61.3848794353 [ 0.25 0.22 122 ]
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 :
107.68 11.01 [0.29 0.29 90] 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) -11.90 [0.7] / z(~) -0.000040 [0.000002] / cz -11.90 [0.70]
   A 2006AstL...32..759G
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):
39.21 [0.40] 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:
A0Ve+K2V C 2013MNRAS.428.3104E
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 2.440 [0.010] C 1986A&AS...65..405O
B 2.450 [0.007] C 1991A&AS...89..415O
V 2.440 [0.009] C 1991A&AS...89..415O
R 2.44 [~] C 2002yCat.2237....0D
I 2.47 [~] C 2002yCat.2237....0D
G 7.2902 [0.1339] C 2018yCat.1345....0G
J 2.40 [~] C 2002yCat.2237....0D
H 2.487 [0.174] D 2003yCat.2246....0C
K 2.33 [~] C 2002yCat.2237....0D
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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.
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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 (47) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Phecda GCRV 7177 N30 2769 SV* ZI 904
* gam UMa GEN# +1.00103287 NSV 5379 TD1 15932
* 64 UMa GSC 03833-01034 PLX 2749 TYC 3833-1034-1
** SHY 227A HD 103287 PLX 2749.00 UBV 10684
AC2000 1609350 HGAM 607 PMC 90-93 321 UBV M 17477
AG+53 826 HIC 58001 PPM 33292 uvby98 100103287
BD+54 1475 HIP 58001 RAFGL 4831S WDS J11538+5342A
CEL 4005 HR 4554 ROT 1756 WEB 10387
CSV 101229 IRAS 11512+5358 RX J1153.8+5341 [HFE83] 832
EM* MWC 583 IRC +50215 1RXS J115352.3+534153 [ZEH2003] RX J1153.8+5341 1
FK5 447 JP11 2124 SAO 28179 Gaia DR2 792588939772065536
GC 16268 2MASS J11534983+5341408 SKY# 22423

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References (370 between 1850 and 2019) (Total 370)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

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Collections of Measurements


distance : 1    velocities : 15    ROT : 6    PM : 6    Fe_H : 3    PLX : 4    MK : 33    V* : 1   

   

Observing logs


ISO : 5    herschel : 3    IUE : 5   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Gamma Ursae Majoris

Link by name to the catalogue in VizieR :

AC2000 1609350 AG+53 826 BD+54 1475 CEL 4005 FK5 447
GSC 03833-01034 HD 103287 HIC 58001 HIP 58001 HR 4554
IRAS 11512+5358 IRC +50215 2MASS J11534983+5341408 NSV 5379 PLX 2749
PPM 33292 RAFGL 4831S 1RXS J115352.3+534153 SAO 28179 TD1 15932
TYC 3833-1034-1 uvby98 100103287 WDS J11538+5342A Gaia DR2 792588939772065536

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2018.12.16-08:27:16

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