V* EZ Aqr

Query : V* EZ Aqr C.D.S. - SIMBAD4 rel 1.225 - 2015.07.30CEST06:05:18

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


Basic data :
V* EZ Aqr -- Variable of BY Dra 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:
* (CSI,GCRV,GEN#,GJ,GSC,JP11​,L,LP,LPM,8pc​,PLX,UBV,UCAC2,Zkh,[RHG95]), PM* (G,LFT,LHS,LTT,NLTT,PM), ** (Ref,**,PMSC,WDS), X (1E,2E,1RXS), Fl* (Ref,[GKL99]), BY* (Ref), V* (V*), IR (2MASS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
22 38 33.728 -15 17 57.33 ( Infrared ) [ 60 60 90 ] B 2003yCat.2246....0C
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
22 38 33.728 -15 17 57.33 [ 60 60 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
22 35 45.42 -15 35 29.6 [ 257 257 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
047.0712 -56.9799 [ 60 60 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 :
2314 2295 [5 5 13] C 2003ApJ...582.1011S
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) -60.0 [2] / z(~) -0.000200 [0.000007] / cz -59.99 [2.00]   (~) B 1953GCRV..C......0W
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:
300 [5] D 1963GCTP..C......0J
Spectral type is made of 3 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
  • bibcode : bibcode of the spectral type reference
Spectral type:
M5V C 2002AJ....123.2002H
Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (8) :
U 15.762 [0.013] B 1992AJ....104..340L
B 14.354 [0.0041] B 2009AJ....137.4186L
V 12.361 [0.0027] B 2009AJ....137.4186L
R 10.713 [0.0027] B 2009AJ....137.4186L
I 8.677 [0.0011] B 2009AJ....137.4186L
J 6.553 [0.019] C 2003yCat.2246....0C
H 5.954 [0.031] C 2003yCat.2246....0C
K 5.537 [0.020] C 2003yCat.2246....0C
SIMBAD with radius arcmin
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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!).

Some important notes on this object about identifications and objects associations.
essential notes:
  • Close binary; component B is itself a SB* (second component named GJ 866 C in the literature); see the WDS and references therein.


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (37) :

V* EZ Aqr GJ 866 A LP 820-64 1RXS J223832.0-151809
** BLA 10 GJ 866 C LPM 837 UBV 19358
CSI-15-22358 GJ 866 B LTT 9122 UCAC2 26361351
1E 2235.8-1534 GSC 06386-00505 2MASS J22383372-1517573 WDS J22385-1519AB
2E 4631 JP11 5181 NLTT 54407 Zkh 333
2E 2235.8-1534 JP11 5180 8pc 289.50 [GKL99] 430
GCRV 14217 JP11 5195 PLX 5475 [RHG95] 3561
GEN# +6.10010866 LFT 1729 PLX 5475.00
G 156-31 LHS 68 PM 22358-1535
GJ 866 L 789-6 PMSC 22329-1552

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References (252 between 1850 and 2015)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Measurements (13 types) :


Einstein : 1    Fe_H : 2    GJ : 2    herschel : 3    ISO : 9    IUE : 10    JP11 : 3    MK : 2    oRV : 1    PLX : 8    PM : 4    UBV : 1   
velocities : 1   

   


External archives :

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

Catalogue information from VizieR :

Generic search by coordinates (radius: 20 arcsec)

V* EZ Aqr G 156-31 GJ 866 GJ 866 A GJ 866 C
GJ 866 B GSC 06386-00505 LHS 68 2MASS J22383372-1517573 NLTT 54407
1RXS J223832.0-151809 UCAC2 26361351 WDS J22385-1519AB [GKL99] 430

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
The list of all annotations to SIMBAD objects can be found here .

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2015.07.30-06:05:18

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