CDS

NGC 253

Query : NGC 253
C.D.S. - SIMBAD4 rel 1.6 - 2018.04.23CEST20:57:16

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

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,1Jy,...), G (Ref,AGC,...), AGN (Ref,[VV2000c],...), X (2E,1ES,...), gam (1FGL,2FGL,...), IR (IRAS,PSCz,...), GiG ([CHM2007]), EmG (SINGG), cm (AT20G), HI (HIPASS)
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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) [ ] B 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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 05.75 -25 33 41.7 [ ]
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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) : 		097.3638 -87.9645 [ ]
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)
  • (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): 		20.953 5.029 51 (IR) C 2006AJ....131.1163S
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 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!).
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 : 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 (63) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

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

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References (1819 between 1998 and 2018) (Total 2695)
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


distance : 8    velocities : 12   

   

Observing logs


ISO : 34    XMM : 4    herschel : 78    IUE : 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
[DML87] 570

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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2018.04.23-20:57:16

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