Delta Eridani

Query : Delta Eridani
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.14CET13:30:26

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


Basic data :
* del Eri -- Variable of RS CVn type
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:
RS* (), * (*,BD,...), PM* (Ref,Ci,...), IR (IRAS,IRC,...), V* (V*,NSV), Ro* (Ref), UV (TD1)
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) :
03 43 14.9008787 -09 45 48.208444 (Optical) [ 0.18 0.15 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) :
03 40 51.0366093 -09 55 52.958321 [ 14.50 11.00 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
Gal coord. (ep=J2000) :
198.0872364472 -45.9958124323 [ 0.18 0.15 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 :
-93.16 743.64 [0.29 0.22 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) -6.28 [0.09] / z(spectroscopic) -0.000021 [0.000000] / cz -6.28 [0.09]
   (Opt) A 2015A&A...574A..50J
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):
110.61 [0.22] 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:
K0+IV B 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 (9) :
U 5.13 [~] C 2002yCat.2237....0D
B 4.46 [~] C 2002yCat.2237....0D
V 3.54 [~] C 2002yCat.2237....0D
R 2.82 [~] C 2002yCat.2237....0D
I 2.32 [~] C 2002yCat.2237....0D
G 3.1347 [0.0037] C 2018yCat.1345....0G
J 1.98 [~] C 2002yCat.2237....0D
H 1.52 [~] C 2002yCat.2237....0D
K 1.43 [~] C 2002yCat.2237....0D
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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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (48) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* del Eri HIC 17378 NAME Rana SAO 130686
* del Eri HIP 17378 NLTT 11686 SKY# 5641
* 23 Eri HR 1136 NSV 1246 SPOCS 180
BD-10 728 IRAS 03408-0955 PLX 788 TD1 2459
Ci 20 255 IRC -10050 PLX 788.00 TYC 5303-1320-1
FK5 135 JP11 813 PMC 90-93 96 UBV 3549
GC 4450 LFT 304 PM 03409-0956 UBV M 9661
GCRV 2057 LHS 1581 PPM 186110 uvby98 100023249
GEN# +1.00023249 LPM 166 RAFGL 513 WEB 3283
GJ 150.0 LTT 1753 RAVE J034314.9-094548 YZ 99 857
GJ 150 2MASS J03431490-0945490 ROT 550 Zkh 53
HD 23249 N30 756 SACS 81 Gaia DR2 5164120762332790528

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References (513 between 1850 and 2019) (Total 513)
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 : 2    diameter : 1    velocities : 17    ROT : 6    PM : 7    Fe_H : 57    PLX : 4    MK : 31    V* : 2   

   

Observing logs


ISO : 6    XMM : 1    IUE : 6   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Delta Eridani

Link by name to the catalogue in VizieR :

V* del Eri BD-10 728 FK5 135 GJ 150.0 GJ 150
HD 23249 HIC 17378 HIP 17378 HR 1136 IRAS 03408-0955
IRC -10050 LHS 1581 2MASS J03431490-0945490 NLTT 11686 NSV 1246
PLX 788 PPM 186110 RAFGL 513 RAVE J034314.9-094548 SAO 130686
TD1 2459 TYC 5303-1320-1 uvby98 100023249 Gaia DR2 5164120762332790528

Search by coordinates in Vizier (radius: 15 arcsec)


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

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2018.11.14-13:30:26

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