EV Lac

C.D.S. - SIMBAD4 rel 1.7 - 2018.10.20CEST01:10:27

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


Basic data :
V* EV Lac -- 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,AG,...), PM* (Ref,Ci,...), X (Ref,RE,...), ** (**,CCDM,...), IR (IRAS,2MASS,...), UV (2EUVE,EUVE,...), Fl* (Ref,[GKL99]), V* (V*), Rad ([CGL99])
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) :
22 46 49.7311740821 +44 20 02.372223230 (Optical) [ 0.0309 0.0294 90 ] A 2018yCat.1345....0G
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
FK5 coord. (ep=J2000 eq=2000) :
22 46 49.7311740821 +44 20 02.372223230 [ 0.0309 0.0294 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
FK4 coord. (ep=B1950 eq=1950) :
22 44 39.9300580504 +44 04 35.337631367 [ 3.4502 3.1502 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) :
100.6067102692717 -13.0693665022666 [ 0.0309 0.0294 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 :
-706.152 -458.775 [0.069 0.063 90] A 2018yCat.1345....0G
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) 0.40 [0.11] / z(~) 0.000001 [0.000000] / cz 0.40 [0.11]
   A 2002ApJS..141..503N
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):
198.0112 [0.0380] A 2018yCat.1345....0G
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:
M4.0V C 2013AJ....145..102L
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 (7) :
B 11.85 [0.09] D 2012yCat.1322....0Z
V 10.26 [0.06] D 2012yCat.1322....0Z
R 9.89 [0.02] D 2012yCat.1322....0Z
G 9.0000 [0.0007] C 2018yCat.1345....0G
J 6.106 [0.030] C 2003yCat.2246....0C
H 5.554 [0.031] C 2003yCat.2246....0C
K 5.299 [0.024] 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.
notes:

  • Two candidate companions identified in 2010PASP.122.1195T
  • Improperly named GJ 873 A in some references : please use GJ 873.


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

: 1 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (54) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* EV Lac GJ 873 PLX 5520 UCAC4 672-113378
** HER 5A HIC 112460 PM J22468+4420 USNO-B1.0 1343-00505631
AG+44 2119 HIP 112460 PPM 63398 VVO 299
ASCC 447839 IDS 22426+4349 A 2RE J224651+442011 WDS J22468+4420A
BD+43 4305 IRAS 22446+4404 2RE J2246+442 WEB 20058
CCDM J22468+4420A JP11 175 RE J224651+442019 WISEA J224649.04+441957.3
Ci 20 1382 LFT 1737 RE J2246+442 Zkh 337
CSI+43 4305 1 LHS 3853 RE J224647+441955 [CGL99] 25
2EUVE J2246+44.3 LSPM J2246+4420 RX J2246.8+4420 [FS2003] 1177
EUVE J2246+44.3 LTT 16695 1RXS J224650.7+442008 [GKL99] 435
GAT 1203 2MASS J22464980+4420030 TYC 3226-2288-1 [RHG95] 3584
GCRV 14312 MCC 852 UBV 19534 Gaia DR2 1934263333784036736
GEN# +0.04304305A NLTT 54837 UBV 19530
G 216-16 8pc 198.00 UCAC2 46990456

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References (107 between 2013 and 2018) (Total 744)
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 :

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                 or select by : (not exhaustive, explanation here)


Collections of Measurements


distance : 2    velocities : 9    PM : 9    Fe_H : 6    PLX : 3    MK : 4    V* : 1   

   

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)

distance (2)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |    5.0502  pc  |  -0.0010     +0.0010  |paral   |2018yCat.1345....0G|
 

velocities (9)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |   20.753       3.508  |C (    )|s , ,NIR ,           |          |       |  |2015ApJS..220...16T|
 

pm (9)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 | -706.152[    0.069]| -458.775[    0.063]|ICRS|2018yCat.1345....0G|
 

fe_h (6)

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 | 3280       |-0.03   |SUN      |     |2014ApJ...791...54G|
 

plx (3)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 | 198.0112  :   0.0380     |2018yCat.1345....0G|
 

mk (4)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |M3.5V                               |2002AJ....123.2002H|
 

v* (1)

 |     vartyp     |    Vmax     p     Vmin    |   period   | epoch (JD)   |D/rt %|     reference     |
 -----------------------------------------------------------------------------------------------------
m|UV              |   9.50      p   11.50     |            |              |      |1971GCVS3.C......0K|
 
Observing logs


ISO : 2    XMM : 2    IUE : 78   

   

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)

iso (2)

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 (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 0.063 41701124 PHT03 3.08 28.38 GL 873 1997-01-06T14:47:30 758 17746 77" D 341.7058 +44.3337 MRODONO + FLARESTS 2 0.063 41701125 PHT22 54.76 216.69 GL 873 1997-01-06T15:00:52 806 17747 181.4"x181.4" 341.7058 +44.3337 MRODONO + FLARESTS

xmm (2)

The 3 columns in color are computed by VizieR, and are not part of the original data.
B/xmm/xmmlog
Post annotation
XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2012) [ReadMe+ftp]
The XMM-Newton Observation log (2018-10-15)[image/fits] (13856 rows)
img(gal)
start AladinLite

Full _r Obsno PropDate Object RAJ2000 DEJ2000 Obs0 ObsDur Image PPSp FITS XSAlink arcmin s deg deg s s
1 0.0007 0111450201 2003-01-21 EV Lacertae 341.70720 +44.33400 2001-06-03T04:44:18 10673 N PPSp 0111450201 Y 2 0.0007 0111450101 2003-01-21 EV Lacertae 341.70720 +44.33400 2001-06-03T07:48:42 32860 FITS PPSp 0111450101 Y

iue (78)

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |BD +43 4305     :            |NC199|48|L SWP 48608 L|      BO|930911 174241|006000| |030|V|FESBCK:216,FO;      |*|1996IUEML.C......0I|
 

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : EV Lac

Link by name to the catalogue in VizieR :

V* EV Lac AG+44 2119 BD+43 4305 CCDM J22468+4420A EUVE J2246+44.3
G 216-16 GJ 873 HIC 112460 HIP 112460 IRAS 22446+4404
LHS 3853 LSPM J2246+4420 2MASS J22464980+4420030 NLTT 54837 PLX 5520
PPM 63398 2RE J224651+442011 2RE J2246+442 1RXS J224650.7+442008 TYC 3226-2288-1
UCAC2 46990456 UCAC4 672-113378 USNO-B1.0 1343-00505631 WDS J22468+4420A WISEA J224649.04+441957.3
[GKL99] 435 Gaia DR2 1934263333784036736

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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 .

display existing annotations (3)

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2018.10.20-01:10:28

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