DDO 75

Query : DDO 75

Basic data :
NAME Sex A -- HII 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: 		H2G (), G (2014AJ,AGC,...), * (GSC), HI (HIPASS), 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) : 		10 11 00.5 -04 41 30 (Optical) [ ] D 2003A&A...412...45P
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) : 		10 11 00.5 -04 41 30 [ ]
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) : 		10 08 29.2 -04 26 42 [ ]
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) : 		246.1460 +39.8754 [ ]
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) 324.0 [2.0] / z(spectroscopic) 0.001081 [0.000007] / cz 324.18 [2.00]
   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: 		dI D 2012MNRAS.426.1808T
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)
  • (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): 		5.9 4.9 0 (~) D 2007ApJS..173..185G
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) 12.48 [0.03] C 2014MNRAS.445..881C
B (AB) 12.13 [0.03] C 2014MNRAS.445..881C
V (AB) 11.93 [0.03] C 2014MNRAS.445..881C
R (AB) 11.78 [0.03] C 2014MNRAS.445..881C
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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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
Some important notes on this object about identifications and objects associations.
notes:

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

: 57 		: 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 Sex A GSC 04907-00713 NAME Sextans A [MI94] Im 69
AGC 500034 HIPASS J1010-04 SPB 137 EQ 1008-0428
Anon 1008-04 IRAS F10085-0427 TC 134
DDO 75 LEDA 29653 UGCA 205
GLXY G246.1+39.9+314 MCG-01-26-030 [M98c] 100830.0-042800

References (99 between 2019 and 2024) (Total 727)
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 : 5    distance : 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)

velocities (5) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |  324                  |  (    )|s ,D,    ,           |          |       |  |2016AJ....152...50T|

distance (10) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |    1.32    Mpc |                       |T-F     |2011ApJS..192....6L|
Observing logs


herschel : 13    XMM : 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)

herschel (13)

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   0.0981  1285  SextansA                             10 11 00.80  -04 41 34.0  OT2_yshi_3         PacsPhoto           6231  2012-11-19T04:11:13  1342255324  get Herschel/PACS observation #1342255324                           SextansA-PACS70um-orth                                                                                                
    2   0.0981  1139  DDO_75                               10 11 00.80  -04 41 34.0  OT2_dhunter_4      PacsPhoto           6172  2012-06-25T18:24:39  1342247429  get Herschel/PACS observation #1342247429                           PPhoto-d75-22  -v2                                                                                                    
    3   0.0981  1139  DDO_75                               10 11 00.80  -04 41 34.0  OT2_dhunter_4      PacsPhoto           6172  2012-06-25T16:40:44  1342247428  get Herschel/PACS observation #1342247428                           PPhoto-d75-21  -v2                                                                                                    
    4   0.0981  1136  DDO_75                               10 11 00.80  -04 41 34.0  OT2_dhunter_4      SpirePhoto          2095  2012-06-22T21:36:18  1342247243                          get Herschel/SPIRE observation #1342247243   SPhoto-d75                                                                                                            
    5   0.0981  1136  SextansA                             10 11 00.80  -04 41 34.0  OT2_yshi_3         SpirePhoto          1411  2012-06-22T21:12:13  1342247242                          get Herschel/SPIRE observation #1342247242   SextansA-SPIRE                                                                                                        
    6   0.0981  1123  SextansA                             10 11 00.80  -04 41 34.0  OT2_yshi_3         PacsPhoto           6231  2012-06-09T22:49:05  1342246847  get Herschel/PACS observation #1342246847                           SextansA-PACS70um                                                                                                     
    7   1.5683  1303  Sextans A-1                          10 10 54.67  -04 40 54.8  OT2_eskillma_4     PacsLineSpec       21137  2012-12-07T03:50:33  1342256481  get Herschel/PACS observation #1342256481                           PSpecL-0003                                                                                                           
    8   1.5683  1303  Sextans A-1                          10 10 54.67  -04 40 54.8  OT2_eskillma_4     PacsLineSpec       21137  2012-12-06T21:55:27  1342256480  get Herschel/PACS observation #1342256480                           PSpecL-0002                                                                                                           
    9   1.6474   921  DDO75                                10 11 06.14  -04 42 21.8  OT1_dhunter_3      PacsLineSpec       23684  2011-11-21T07:45:33  1342232590  get Herschel/PACS observation #1342232590                           PSpecL-DDO75-4                                                                                                        
   10   1.6474   921  DDO75                                10 11 06.14  -04 42 21.8  OT1_dhunter_3      PacsLineSpec        8380  2011-11-21T05:23:42  1342232589  get Herschel/PACS observation #1342232589                           PSpecL-DDO75-2                                                                                                        
   11   1.6474   921  DDO75                                10 11 06.14  -04 42 21.8  OT1_dhunter_3      PacsLineSpec        4612  2011-11-21T04:04:43  1342232588  get Herschel/PACS observation #1342232588                           PSpecL-DDO75-1                                                                                                        
   12   2.2155  1306  Sextans A-2                          10 11 09.34  -04 41 45.0  OT2_eskillma_4     PacsLineSpec       24524  2012-12-10T03:38:21  1342256934  get Herschel/PACS observation #1342256934                           PSpecL-0001                                                                                                           
   13   2.2155  1303  Sextans A-2                          10 11 09.34  -04 41 45.0  OT2_eskillma_4     PacsLineSpec       24524  2012-12-06T15:04:34  1342256479  get Herschel/PACS observation #1342256479                           PSpecL-0000

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]
2002yCat....102009X

The XMM-Newton Observation log (2024-03-25)[image/fits] (17645 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    1.2700  0026340201  2002-12-13  Sextans A                       152.77333  -04.69111  2001-11-27T04:25:07    21618 FITS       PPSp  0026340201 Y

External archives :

Data at NED - NASA/IPAC Extragalactic Database : DDO 75

Link by name to the catalogue in VizieR :

GSC 04907-00713 HIPASS J1010-04 IRAS F10085-0427

Search by coordinates in Vizier (radius: 30 arcsec)

Annotations :
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Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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