AT Mic

Query : AT Mic

Basic data :
V* AT Mic -- 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: 		* (HD,BPS,...), X (2015A&A,RBS,...), ** (**,IDS,...), Er* (2017ARep), V* (ASAS,1SWASP,...), UV (2EUVE,EUVE,...), PM* (2013MNRAS), MIR (AKARI,WISEA), Ro* (2020ApJ), NIR (2MASS), IR (IRAS)
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) : 		20 41 51.15925 -32 26 06.8283 (Optical) [ 40.65 30.72 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] : 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) : 		20 38 43.70850 -32 36 33.8259 [ 40.65 30.72 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) : 		011.14051920 -36.34257856 [ 40.65 30.72 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 : 		270.45 -365.60 [4.63 3.50 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) -3.17 [0.53] / z(spectroscopic) -0.000011 [0.000002] / cz -3.17 [0.53]
   (Opt) A 2020A&A...642A.179M
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): 		93.50 [3.67] A 2007A&A...474..653V
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: 		M4.5Ve+M4.5Ve C 1974ApJS...28....1J
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 (8) :
U 12.753 [~] C 2010MNRAS.403.1949K
B 11.909 [~] C 2010MNRAS.403.1949K
V 10.343 [~] C 2010MNRAS.403.1949K
R 9.098 [~] C 2010MNRAS.403.1949K
I 7.383 [0.021] C 2012AcA....62...67K
J 5.807 [0.026] C 2003yCat.2246....0C
H 5.201 [0.046] C 2003yCat.2246....0C
K 4.94 [0.04] C 2003yCat.2246....0C
SIMBAD within arcmin
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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

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

: 2
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 2 		: 514 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (39) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 196982 2EUVE J2041-32.4 RBS 1692 TIC 441398770
** LDS 720BC EUVE J2041-32.4 2RE J2041-322 UBV M 25071
AKARI-IRC-V1 J2041512-322610 HIC 102141 2RE J204150-322503 UGP 502
ASAS J204151-3226.1 HIP 102141 RE J2041-322 V* AT Mic
ASAS J204151-3226.0 IDS 20390-3142 BC RE J204150-322619 WDS J20452-3120BC
BPS CS 30314-0192 IDS 20356-3247 RX J2041.8-3225 WEB 18475
CD-32 16135 IRAS 20387-3236 1RXS J204151.2-322604 WISEA J204151.37-322612.3
CPC 17 11295 2MASS J20415111-3226073 SAO 212355 XSS J20426-3225
CPD-32 6181 PLX 4929 SV* BV 594 [FS2003] 1087
CSI-32 16135 21 PPM 300495 1SWASP J204151.15-322606.7

References (356 between 1850 and 2024) (Total 356)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 6    V* : 5    distance : 2    ROT : 1    Fe_H : 2    PLX : 2    PM : 2    MK : 7   

   

Observing logs


herschel : 5    IUE : 40    XMM : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : AT Mic

Link by name to the catalogue in VizieR :

HD 196982 AKARI-IRC-V1 J2041512-322610 CD-32 16135 CPD-32 6181 EUVE J2041-32.4
HIC 102141 HIP 102141 IRAS 20387-3236 2MASS J20415111-3226073 PLX 4929
PPM 300495 2RE J2041-322 2RE J204150-322503 1RXS J204151.2-322604 SAO 212355
V* AT Mic WDS J20452-3120BC WISEA J204151.37-322612.3

Search by coordinates in Vizier (radius: 10 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 .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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