NGC 253

Query : NGC 253 C.D.S. - SIMBAD4 rel 1.225 - 2015.09.01CEST12:10:18

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 (), G (Ref,AGC,6dFGS,DUGRS,ESO,GLXY​,LEDA,2MASX,MCG,SGC​,UGCA,[M98c]), Rad (Cul,1Jy,MRC,MSH,NVSS,OHIO​,PKS,PMN,WISH,WMAP), AGN (Ref,[VV2000c],[VV2003c],[VV2006c],[VV2010c],[VV98c]), X (2E,1ES,RBS,RX,1RXS), IR (IRAS,PSCz,RAFGL,[DML87]), gam (1FGL,2FGL,INTREF), 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
FK5 coord. (ep=J2000 eq=2000) :
00 47 33.134 -25 17 19.68 [ ]
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 (incl) (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 flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (7) :
B 8.04 [0.05] D 2007ApJS..173..185G
V 13.97 [~] D 2010A&A...518A..10V
R 6.66 [~] D 1989ESOLV.C......0L
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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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.
essential 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.

: 85
: 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 (58) :

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

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References (2439 between 1850 and 2015)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

from: to:

                                  Sort reference summaries by : (not exhaustive, explanation here)

                                 


Measurements (11 types) :


distance : 8    Einstein : 1    IRAS : 1    ISO : 34    IUE : 4    posa : 1    RVel : 7    velocities : 12    XMM : 4    Z : 3    ze : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database

Catalogue information from VizieR :

Generic search by coordinates (radius: 30 arcsec)

NGC 253 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

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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2015.09.01-12:10:18

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