EZ Aqr

Query : EZ Aqr

Basic data :
V* EZ Aqr -- Eruptive 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: 		* (GSC,CSI,...), PM* (2016ApJ,G,...), ** (2001AJ,**,...), Er* (2017ARep,[GKL99]), X (1E,2E,...), V* (V*), UV (2016ApJ), NIR (2MASS), MIR (WISEA)
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) : 		22 38 33.576000 -15 17 59.75700 (Optical) [ 100 100 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
FK5 coord. (ep=J2000 eq=2000) : 		22 38 33.577244 -15 17 59.74154 [ 100 100 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
FK4 coord. (ep=B1950 eq=1950) : 		22 35 45.269235 -15 35 31.89046 [ 100 100 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) : 		047.069636721 -56.979610304 [ 100 100 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 : 		2314.8 2295.3 [8.0 8.0 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) -60.0 [2] / z(~) -0.000200 [0.000007] / cz -59.99 [2.00]
   E 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): 		293.600 [0.900] C 2010A&ARv..18...67T
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: 		M5V B 1991ApJS...77..417K
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 15.762 [0.013] B 1992AJ....104..340L
B 14.33 [0.02] D 2012yCat.1322....0Z
V 12.38 [0.03] D 2012yCat.1322....0Z
R 12.12 [0.04] D 2012yCat.1322....0Z
G 10.840448 [0.028075] C 2022yCat.1355....0G
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
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sedIcon
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
Some important notes on this object about identifications and objects associations.
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 (44) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

GSC 06386-00505 GJ 866 B LTT 9122 UCAC2 26361351
** BLA 10 GJ 866 A 2MASS J22383372-1517573 UCAC4 374-178693
CSI-15-22358 GJ 866 NLTT 54407 V* EZ Aqr
1E 2235.8-1534 JP11 5181 8pc 289.50 WDS J22385-1519AB
2E 4631 JP11 5180 PLX 5475 WEB 19966
2E 2235.8-1534 JP11 5195 PLX 5475.00 WISEA J223835.27-151735.3
GCRV 14217 LFT 1729 PM 22358-1535 Zkh 333
GCRV 26202 LHS 68 PMSC 22329-1552 [GKL99] 430
GEN# +6.10010866 L 789-6 1RXS J223832.0-151809 [RHG95] 3561
G 156-31 LP 820-64 TIC 402313808 Gaia DR3 2596740426913080576
GJ 866 C LPM 837 UBV 19358 Gaia DR2 2596740426912781696

References (26 between 2019 and 2024) (Total 308)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 2    V* : 1    distance : 1    Fe_H : 5    PLX : 2    PM : 4    MK : 6   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

velocities (2) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |  -60.0                |  (   4)|s , ,    ,           |          |       |  |1995A&AS..114..269D|

v* (1) 

 |     vartyp     |    Vmax     p     Vmin    |   period   | epoch (JD)   |D/rt %|     reference     |
 -----------------------------------------------------------------------------------------------------
 |UV+BY           |  14.010     U   16.500    |            |              |      |2017ARep...61...80S|

distance (1) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |    3.4     pc  |                       |paral   |2010A&ARv..18...67T|

fe_h (5) 

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 |  2851 4.83  | 0.05   |SUN      |     |2019ApJ...878..134K|

plx (2) 

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 | 293.600   :   0.900      |2010A&ARv..18...67T|

pm (4) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |+2214    [    5    ]|+2295    [    5    ]|ICRS|2007ApJ...667..520C|

mk (6) 

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |M5.5V                               |1995AJ....110.1838R|
Observing logs


herschel : 3    ISO : 9    IUE : 10   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

herschel (3)

The 1 column in color are computed by VizieR, and are not part of the original data.

Note: (see also the postcard server)

VI/139/herschel
Post annotation 		Herschel Observation Log (Herschel Science Centre, 2013) [ReadMe+ftp]
2013yCat.6139....0H

The Herschel Observation Log (37093 rows)		img(gal)
start AladinLite 
 Full      _r     OD   Target                                 RAJ2000      DEJ2000    Proposal           AOT                 Dur          Start            ObsId       PACS        HIFI        SPIRE    Label                                                                                                                 
        arcmin                                               "h:m:s"      "d:m:s"                                            s             s                                                                                                                                                                                 


    1   0.0141   725  S-M009 (GJ 866)                      22 38 33.62  -15 17 59.2  KPOT_bmatthew_1    SpirePhoto           721  2011-05-08T23:32:08  1342220644                          get Herschel/SPIRE observation #1342220644   DEBRIS-S-M009 (GJ 866)                                                                                                
    2   0.0141   579  P-M009 (GJ 866)                      22 38 33.62  -15 17 59.2  KPOT_bmatthew_1    PacsPhoto            445  2010-12-13T19:43:46  1342211129  get Herschel/PACS observation #1342211129                           DEBRIS - PB-M009 (GJ 866)                                                                                             
    3   0.0141   579  P-M009 (GJ 866)                      22 38 33.62  -15 17 59.2  KPOT_bmatthew_1    PacsPhoto            445  2010-12-13T19:35:18  1342211128  get Herschel/PACS observation #1342211128                           DEBRIS - PA-M009 (GJ 866)

iso (9)

The 2 columns in color are computed by VizieR, and are not part of the original data.
Note: Quick-look images of the data, and specific documentation, are accessible by clicking on the TDT observation identifier
VI/111/isolog
Post annotation 		ISO Observation Log (ISO Data Centre, 2004) [ReadMe+ftp]

*The ISO Observation Log[image] (36737 rows) (Note)		img(gal)
start AladinLite 
 Full      _r        TDT    AOT    minLam  maxLam  Target                                 oStart         oLen    recno   FOV                  RAJ2000   DEJ2000 cal  ObsID    abs  PropID  
        arcmin                      um      um                                             s             s                                     deg       deg                              


    1     0.226  72701507  PHT40    2.47    8.95  GL 866 BACKGR                   1997-11-12T06:07:55   2156     30432  24"x24"             339.6378  -15.3031      RWEHRSE  +    MD_BACKG
    2     0.246  53601251  PHT19   54.23  117.55  GL866                           1997-05-05T17:59:59    224     22675  99" D               339.6372  -15.3031      HWALKER  +    P32B    
    3     0.300  18600410  PHT03    5.61  117.55  GL866                           1996-05-21T01:39:01    848      7336  99" D               339.6365  -15.3037      HWALKER  +    P32B    
    4     0.821  72701512  PHT40    2.47    8.95  GL 866 BACKGR                   1997-11-12T06:44:39   1132     30433  24"x24"             339.6378  -15.2864      RWEHRSE  +    MD_BACKG
    5     1.102  35900707  PHT40    2.47    8.95  GL 866                          1996-11-09T19:19:58   2156     15041  24"x24"             339.6261  -15.3126      RWEHRSE  +    MD_STRAT
    6     1.198  72701513  PHT40    2.47    8.95  GL 866 BACKGR                   1997-11-12T07:04:23   1132     30434  24"x24"             339.6378  -15.3198      RWEHRSE  +    MD_BACKG
    7     2.831  57303119  PHT40    2.47    8.95  Gl 866                          1997-06-11T13:11:37    236     24404  24"x24"             339.6048  -15.3328      SPRICE   +    STARTYP1
    8     5.812  53601249  PHT17   54.23  117.55  GL866 OFF                       1997-05-05T17:52:13    212     22673  99" D               339.6372  -15.2031      HWALKER  +    P32B    
    9     5.812  53601250  PHT18   54.23  117.55  GL866 OFF                       1997-05-05T17:56:29    156     22674  99" D               339.6372  -15.2031      HWALKER  +    P32B

iue (10) 

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |V* EZ AQR       :            |MC151|48|L SWP 41817 L|  301 SO|910611 032302|001800| |030|V|                    |*|1996IUEML.C......0I|

External archives :

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

Link by name to the catalogue in VizieR :

GSC 06386-00505 2E 4631 G 156-31 GJ 866 C GJ 866 B
GJ 866 A GJ 866 LHS 68 2MASS J22383372-1517573 NLTT 54407
PLX 5475 1RXS J223832.0-151809 UCAC2 26361351 UCAC4 374-178693 V* EZ Aqr
WDS J22385-1519AB WISEA J223835.27-151735.3 [GKL99] 430 Gaia DR3 2596740426913080576 Gaia DR2 2596740426912781696

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Annotations :
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