40 Eridani

C.D.S. - SIMBAD4 rel 1.5.12 - 2017.12.14CET16:05:54

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


Basic data :
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* omi02 Eri -- Flare 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:
* (Ref,*,...), PM* (Ci,LFT,...), ** (**,ADS,...), X (1E,RBS,...), IR (IRC,2MASS), UV (2EUVE,EUVE), Fl* ([GKL99]), Ro* (Ref), 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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
04 15 16.31963 -07 39 10.3404 (Optical) [ 2.02 1.76 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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
04 15 16.320 -07 39 10.34 [ 2.02 1.76 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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
04 12 58.16 -07 43 45.9 [ 11.63 10.20 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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
200.7528 -38.0478 [ 2.02 1.76 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 :
-2240.12 -3420.27 [0.23 0.20 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) -42.32 [0.08] / z(~) -0.000141 [0.000000] / cz -42.32 [0.08]
   A
Syntax of radial velocity (or/a>biall (owavel'e
  • A quality sim-ref'EM> : radial velocity or/an>biall (oeloci : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcodof the correspom, nonding : bibcode of the proper motion referencbiall (oNT> Proper motions mas/biall (e <(le (
  • V(km/s) -42.32 [0.08] 62 2007A&A...474..653V
    Syntax of radial velocramrefl or giwavmaon ref3FONT>s: %OCTYPEiwavtranom inref4FONT>s : M> : : bierenbcodsramrefl or ge pro, whichiwavmaon refaSIZdanier href> , evpt,debibcodebibcode
    Radial velocity / Redcramrefl or g
    V(km/s) -42.32 [0.08]K0V B 1989. ...7uwm245K
    Syntax of radial velocity (or/aflu(e (or ax" HREF=s (wavele veloc-> [)aflu(-ngth) quality qualityMultVarFt qsM>value : radial v veloc-> : bibcod(S[)correspomf the AB (default(wavVegaM> : bibcodflu(-ngth)correspongth) r/aflu( or ax" HREF= : error of the corresponding eloci : flag of quality (A=best quality ->referenflu( ngth) ; E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of th e proper motion referenflu( NT>
  • Proper motions masFlu(e (8
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