NGC 253

Query : NGC 253

Basic data :
NGC 253 -- Seyfert 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: 		SyG (), Rad (Cul,GLEAM,...), G (2011MNRAS,AGC,...), gam (1FGL,2FGL,...), AGN (2011ApJ,[VV2000c],...), X (2E,1ES,...), IR (IRAS,PSCz,...), EmG (SINGG), BL? (2021MNRAS), GiG ([CHM2007]), AG? (2020MNRAS), HI (HIPASS), cm (AT20G)
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) : 		00 47 33.134 -25 17 19.68 (Infrared) [ ] C 2006AJ....131.1163S
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) : 		00 45 05.751 -25 33 41.71 [ ]
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) : 		097.363851 -87.964547 [ ]
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) 258.8 [~] / z(emission) 0.000864 [~] / cz 258.91 [~]
   (Rad) C 2004MNRAS.350.1195M
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: 		SAB(s)c D 2015MNRAS.446..943V
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): 		28.84 5.89 53 (Opt) D 2003A&A...412...45P
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 (6) :
B (AB) 8.03 [0.03] C 2014MNRAS.445..881C
R (AB) 6.94 [0.03] C 2014MNRAS.445..881C
I 8.1 [~] D 2005MNRAS.361...34D
J 4.814 [0.016] C 2006AJ....131.1163S
H 4.088 [0.016] C 2006AJ....131.1163S
K 3.772 [0.017] C 2006AJ....131.1163S
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 ) :

: 3
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

: 365 		: 14 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (71) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 253 GLXY G095.1-88.0+344 PKS 0045-25 WISH B0045.1-2533
AGC 20535 HIPASS J0047-25 PKS J0047-2517 WMAP 62
AT20G J004733-251717 INTREF 36 PKS 0045-255 WMAP J0047-2515
Cul 0045-25 IRAS 00450-2533 PMN J0047-2517 WMAP J0047-2514
Cul 0045-255 IRAS F00450-2533 PSCz Q00450-2533 WMAP J0047-2513
6dFGS gJ004733.1-251719 1Jy 0045-25 RAFGL 5038 WMAP J0047-2516
DUGRS 474-001 1Jy 0045-255 RBS 112 9Y-MST J0047-2517
2E 184 LEDA 2789 RX J004731-25175 [CAB95] IRAS F00450-2533
2E 0045.1-2533 LVHIS 006 RX J0047.5-2517 [CHM2007] LDC 26 J004733.13-2517196
1ES 0045-25.5 2MASX J00473313-2517196 1RXS J004733.3-251722 [DML87] 570
ESO 474-29 MCG-04-03-009 SGC 004507-2533.9 [M98c] 004505.7-253340
ESO-LV 474-0290 MRC 0045-255 SINGG HIPASS J0047-25 [NKB95] N0253
1FGL J0047.3-2512 MSH 00-2-22 TeV J0047-253 [VV2000c] J004733.2-251717
2FGL J0047.0-2516 NAME Silver Coin TGSSADR J004732.9-251716 [VV2003c] J004733.2-251717
3FGL J0047.5-2516 NAME Scl Filament TXS 0045-255 [VV2006c] J004733.2-251717
4FGL J0047.5-2517 NAME Sculptor Filament UGCA 13 [VV2010c] J004733.2-251717
3FHL J0047.6-2517 NVSS J004733-251717 VLSSr J004733.3-251710 [VV98c] J004733.2-251717
GLEAM J004733-251710 OHIO B -275 VLSS J0047.5-2517

References (3332 between 1850 and 2024) (Total 3332)
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 :

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                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 14    distance : 14   

   

Observing logs


herschel : 78    ISO : 34    IUE : 4    XMM : 4   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : NGC 253

Link by name to the catalogue in VizieR :

NGC 253 2E 184 ESO-LV 474-0290 HIPASS J0047-25 IRAS 00450-2533
IRAS F00450-2533 2MASX J00473313-2517196 NVSS J004733-251717 PKS 0045-25 PKS J0047-2517
PKS 0045-255 PMN J0047-2517 RAFGL 5038 1RXS J004733.3-251722 WISH B0045.1-2533
WMAP J0047-2515 WMAP J0047-2514 WMAP J0047-2513 WMAP J0047-2516 [DML87] 570

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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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