* k Aqr

C.D.S. - SIMBAD4 rel 1.7 - 2018.10.15CEST18:34:58

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


Basic data :
* k Aqr -- Long-period variable 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:
* (*,BD,...), IR (EIC,IRAS,...), V* (V*,CSV,...), LP* (Ref)
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) :
20 47 44.2372322158 -05 01 39.772780593 (Optical) [ 0.2904 0.2752 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) :
20 47 44.2372322158 -05 01 39.772780593 [ 0.2904 0.2752 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) :
20 45 05.9750587427 -05 12 43.304287700 [ 17.0023 11.5037 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 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) :
042.2426297103009 -28.0854904131184 [ 0.2904 0.2752 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 :
1.68 -40.06 [0.34 0.23 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) -22.00 [0.6] / z(~) -0.000073 [0.000002] / cz -22.00 [0.60]
   A 2006AstL...32..759G
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):
7.9131 [0.3353] 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:
M3III 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 8.04 [~] C 2002yCat.2237....0D
B 6.11 [~] C 2002yCat.2237....0D
V 4.44 [~] C 2002yCat.2237....0D
R 2.97 [~] C 2002yCat.2237....0D
I 1.66 [~] C 2002yCat.2237....0D
G 3.3584 [0.0027] C 2018yCat.1345....0G
J 0.94 [~] C 2002yCat.2237....0D
H 0.01 [~] C 2002yCat.2237....0D
K -0.21 [~] C 2002yCat.2237....0D
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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (36) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* EN Aqr GEN# +1.00198026 2MASS J20474422-0501395 SKY# 39423
* k Aqr GSC 05186-02125 N30 4599 TYC 5186-2125-1
* 3 Aqr HD 198026 PLX 4961 UBV 18001
BD-05 5378 HIC 102624 PLX 4961.00 UBV M 25160
CSV 8571 HIP 102624 PMC 90-93 1092 WEB 18595
EIC 838 HR 7951 PPM 204454 YZ 95 7228
FK5 1543 IRAS 20451-0512 RAFGL 2652 [DS98] 295
GC 28979 IRC -10548 SACS 456 AAVSO 2042-05
GCRV 13035 JP11 3278 SAO 144814 Gaia DR2 6913577284067132928

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References (6 between 2013 and 2018) (Total 116)
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


distance : 1    velocities : 7    PM : 5    Fe_H : 1    PLX : 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)

distance (1)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |  126.3727  pc  |  -5.3548     +5.3548  |paral   |2018yCat.1345....0G|
 

velocities (7)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |  -22.0                |  (   5)|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 

pm (5)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   +1.640[    0.571]|  -37.138[    0.515]|ICRS|2018yCat.1345....0G|
 

fe_h (1)

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 | 3933       |        |SUN      |     |1998AJ....116..981V|
 

plx (4)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
m|   7.33    :   0.99       |1997A&A...323L..49P|
 

mk (6)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |M3III                               |1989ApJS...71..245K|
 
Observing logs


ISO : 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)

iso (1)

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 0.013 89300801 SWS99 -1.00 -1.00 EN Aqr M3III 1998-04-26T11:26:17 2352 36607 14"x20" 311.9341 -05.0277 SWS_CAL 6999IH74


External archives :

Data at NED - NASA/IPAC Extragalactic Database : * k Aqr

Link by name to the catalogue in VizieR :

V* EN Aqr BD-05 5378 FK5 1543 GSC 05186-02125 HD 198026
HIC 102624 HIP 102624 HR 7951 IRAS 20451-0512 IRC -10548
2MASS J20474422-0501395 PLX 4961 PPM 204454 RAFGL 2652 SAO 144814
TYC 5186-2125-1 Gaia DR2 6913577284067132928

Search by coordinates in Vizier (radius: 5 arcsec)


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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2018.10.15-18:34:59

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