Xi UMa

Query : Xi UMa

Basic data :
* ksi UMa -- RS CVn Variable
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: 		* (*,ASCC,...), ** (1997A&AS,**,...), X (2E,1ES,...), UV (2EUVE,EUVE,...), MIR (AKARI,WISEA,...), PM* (2016ApJ,Ci), V* (NSV,V*), IR (IRAS,IRC), RS* (2003AstL), 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) : 		11 18 10.931880 +31 31 45.44004 (Optical) [ 20 20 90 ] B 2012yCat.1322....0Z
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) : 		11 15 31.243277 +31 48 39.36545 [ 20 20 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) : 		195.106847360 +69.246195273 [ 20 20 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 : 		-453.7 -591.4 [2.0 2.0 90] C 2012yCat.1322....0Z
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) -18.2 [2.7] / z(~) -0.000061 [0.000009] / cz -18.20 [2.70]
   D 2004A&A...418..989N
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): 		113.2 [4.6] E 1995GCTP..C......0V
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: 		F8.5:V+G2V C 1989ApJS...71..245K
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 (6) :
U 4.42 [~] D 1978A&AS...34....1N
B 4.38 [~] D 1978A&AS...34....1N
V 3.79 [~] D 1978A&AS...34....1N
J 2.46 [0.29] D 2003yCat.2246....0C
H 2.23 [0.20] D 2003yCat.2246....0C
K 2.14 [0.23] D 2003yCat.2246....0C
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 Simbad points in this preview
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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!). sed-help-icon

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

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 		Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (56) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* ksi UMa 2EUVE J1118+31.5 NSV 5165 TD1 15519
* 53 UMa EUVE J1118+31.5 PLX 2625 TIC 144294174
** STF 1523AB EUVE J1118+31.4 PLX 2625.00 UBV 10288
** WTE 1A GC 15537 PMSC 11128+3205 UBV M 16962
ADS 8119 AB GEN# +1.00098231 RBS 961 UCAC3 244-100191
AKARI-IRC-V1 J1118109+313147 HIC 55203 2RE J1118+313 UCAC4 608-048190
ASCC 585912 HIP 55203 2RE J111810+313143 USNO-B1.0 1215-00188948
BD+32 2132 IDS 11128+3206 AB RE J111810+313153 uvby98 100098230
CCDM J11182+3132AB IRAS 11154+3148 RE J1118+313 V* ksi UMa
Ci 20 627 IRC +30229 RX J1118.1+3131 WDS J11182+3132AB
CSI+32 2132 3 JP11 2046 RX J1118.1+3130 WISEA J111810.57+313139.3
2E 1115.4+3148 2MASS J11181100+3131464 1RXS J111811.1+313154 WISE J111810.63+313139.4
2E 2440 N30 2652 SAO 62484 YPAC 502
1ES 1115+31.8 NAME Alula Australis SKY# 21520 [ZEH2003] RX J1118.1+3131 1

References (270 between 1850 and 2024) (Total 270)
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


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

   

Observing logs


herschel : 2   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Xi UMa

Link by name to the catalogue in VizieR :

AKARI-IRC-V1 J1118109+313147 BD+32 2132 CCDM J11182+3132AB 2E 2440 EUVE J1118+31.5
EUVE J1118+31.4 HIC 55203 HIP 55203 IRAS 11154+3148 IRC +30229
2MASS J11181100+3131464 NSV 5165 PLX 2625 2RE J1118+313 2RE J111810+313143
1RXS J111811.1+313154 SAO 62484 TD1 15519 UCAC3 244-100191 UCAC4 608-048190
USNO-B1.0 1215-00188948 uvby98 100098230 V* ksi UMa WDS J11182+3132AB WISEA J111810.57+313139.3
WISE J111810.63+313139.4

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