Delta Ursae Majoris

Query : Delta Ursae Majoris
C.D.S. - SIMBAD4 rel 1.7 - 2018.10.17CEST02:16:39

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


Basic data :
* del UMa -- High proper-motion 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:
* (*,AG,...), ** (**,CCDM,...), V* (CSV,NSV,...), IR (AKARI,IRAS,...), UV (CEL,TD1), 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) :
12 15 25.5621619826 +57 01 57.404358745 (Optical) [ 0.1951 0.1922 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] : 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) :
12 12 57.5855856682 +57 18 36.983278456 [ 20.5010 19.7010 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) :
132.5666082898487 +59.4169251771518 [ 0.1951 0.1922 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 :
102.728 9.237 [0.394 0.410 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) -15.30 [0.5] / z(~) -0.000051 [0.000002] / cz -15.30 [0.50]
   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):
40.2364 [0.2553] 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:
A2Vn C 2003AJ....126.2048G
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 3.460 [0.010] C 1984A&AS...57..357O
B 3.410 [0.007] C 1993A&AS..100..591O
V 3.320 [0.009] C 1993A&AS..100..591O
R 3.25 [~] C 2002yCat.2237....0D
I 3.25 [~] C 2002yCat.2237....0D
G 3.2205 [0.0043] C 2018yCat.1345....0G
J 3.11 [~] C 2002yCat.2237....0D
H 3.31 [0.25] D 2011MNRAS.415..854D
K 3.09 [~] C 2002yCat.2237....0D
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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 (46) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Megrez FK5 456 IRAS 12129+5718 SV* ZI 919
* del UMa GC 16736 JP11 2194 TD1 16157
* 69 UMa GCRV 7337 2MASS J12152554+5701575 TYC 3837-1070-1
** BLL 29A GEN# +1.00106591 N30 2835 UBV 11008
** BUP 140A GJ 459 NSV 5513 UBV M 17960
AG+57 844 GSC 03837-01070 PLX 2824 uvby98 100106591
AKARI-IRC-V1 J1215257+570157 HD 106591 PLX 2824.00 WDS J12154+5702A
BD+57 1363 HGAM 610 PMC 90-93 325 WEB 10621
CCDM J12155+5702A HIC 59774 PPM 33469 AAVSO 1210+57
CEL 4078 HIP 59774 ROT 1795 Gaia DR2 1575287046603149056
CSI+57 1363 1 HR 4660 SAO 28315
CSV 101249 IDS 12105+5735 A SKY# 22985

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References (271 between 1850 and 2018) (Total 271)
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 : 13    ROT : 5    PM : 6    Fe_H : 2    PLX : 4    MK : 32    V* : 1   

   

Observing logs


ISO : 11    herschel : 2    IUE : 4   

   


External archives :

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

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

Link by name to the catalogue in VizieR :

AG+57 844 AKARI-IRC-V1 J1215257+570157 BD+57 1363 CCDM J12155+5702A CEL 4078
FK5 456 GJ 459 GSC 03837-01070 HD 106591 HIC 59774
HIP 59774 HR 4660 IRAS 12129+5718 2MASS J12152554+5701575 NSV 5513
PLX 2824 PPM 33469 SAO 28315 TD1 16157 TYC 3837-1070-1
uvby98 100106591 WDS J12154+5702A Gaia DR2 1575287046603149056

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2018.10.17-02:16:39

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