Leo A

C.D.S. - SIMBAD4 rel 1.7 - 2018.11.20CET15:47:28

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


Basic data :
NAME Leo Dwarf Irregular Galaxy -- Galaxy
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:
G (Ref,BTS,...)
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) :
09 59 26.46 +30 44 47.0 [ 10800.00 10800.00 90 ] D 1999ApJS..125..409C
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) :
09 59 26.46 +30 44 47.0 [ 10800.00 10800.00 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) :
09 56 32.45 +30 59 10.4 [ 10800.00 10800.00 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) :
196.90362 +52.42247 [ 10800.00 10800.00 90 ]
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) 22.3 [2.9] / z(spectroscopic) 0.000074 [0.000010] / cz 22.30 [2.90]
   C 2012AJ....144....4M
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type:
10 D 2011A&A...532A..74B
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (incl) : inclination (in units of 15° from 0 to 7)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin):
4.25 2.04 10 (~) D 2008ApJS..175...86P
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 (4) :
U (AB) 14.08 [0.03] C 2014MNRAS.445..881C
B (AB) 13.54 [0.03] C 2014MNRAS.445..881C
V (AB) 13.26 [0.03] C 2014MNRAS.445..881C
R (AB) 13.33 [0.03] C 2014MNRAS.445..881C
SIMBAD with radius arcmin
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VizieR photometry viewer    sed-help-icon
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!).

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

: 54
: 103 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (17) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Leo A NAME Leo A Im V Dwarf UGC 5364 [MI94] Im 64
BTS 14 NAME Leo III UZC J095923.7+304457 [VDD93] 101
DDO 69 NAME Leo Dwarf Galaxy Z 153-10
LEDA 28868 NAME Leo Dwarf Irregular Galaxy Z 0956.4+3059
MCG+05-24-008 TC 127 [M98c] 095629.8+305905

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References (103 between 2014 and 2019) (Total 508)
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 : 3    velocities : 2   

   

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 (3)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |    0.78    Mpc |                       |        |2016AJ....152...50T|
 

velocities (2)

 |typ|    Value    R   m.e.   |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------------
 |v  |   24                   |  (    )|s ,D,    ,           |          |       |  |2016AJ....152...50T|
 
Observing logs


XMM : 1    herschel : 7   

   

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)

xmm (1)

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 (2018-11-19)[image/fits] (13903 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 0.0005 0204790501 2005-08-09 LEO A 149.86026 +30.74639 2004-04-20T20:40:55 21908 FITS PPSp 0204790501 Y

herschel (7)

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]
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 0.0129 1285 DDO_69 09 59 26.40 +30 44 47.0 OT2_dhunter_4 PacsPhoto 4490 2012-11-19T08:08:07 1342255336 get Herschel/PACS observation #1342255336 PPhoto-d69-22 -v2 2 0.0129 1285 DDO_69 09 59 26.40 +30 44 47.0 OT2_dhunter_4 PacsPhoto 4490 2012-11-19T06:52:11 1342255335 get Herschel/PACS observation #1342255335 PPhoto-d69-21 -v2 3 0.0129 1282 DDO_69 09 59 26.40 +30 44 47.0 OT2_dhunter_4 SpirePhoto 2019 2012-11-16T13:47:47 1342255183 get Herschel/SPIRE observation #1342255183 SPhoto-d69 4 1.4927 914 DDO69 09 59 33.38 +30 44 39.1 OT1_dhunter_3 PacsLineSpec 23684 2011-11-13T20:23:28 1342232312 get Herschel/PACS observation #1342232312 PSpecL-DDO69-4 5 1.4927 913 DDO69 09 59 33.38 +30 44 39.1 OT1_dhunter_3 PacsLineSpec 1787 2011-11-12T19:29:38 1342232284 get Herschel/PACS observation #1342232284 PSpecL-DDO69-5 6 1.4927 913 DDO69 09 59 33.38 +30 44 39.1 OT1_dhunter_3 PacsLineSpec 8380 2011-11-12T17:07:48 1342232283 get Herschel/PACS observation #1342232283 PSpecL-DDO69-2 7 1.4927 913 DDO69 09 59 33.38 +30 44 39.1 OT1_dhunter_3 PacsLineSpec 4612 2011-11-12T15:48:49 1342232282 get Herschel/PACS observation #1342232282 PSpecL-DDO69-1


External archives :

Data at NED - NASA/IPAC Extragalactic Database : Leo A

Link by name to the catalogue in VizieR :

UGC 5364

Search by coordinates in Vizier (radius: 30 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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2018.11.20-15:47:28

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