NGC 660

Query : NGC 660

Basic data :
NGC 660 -- Seyfert 2 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: 		Sy2 (), LIN (), GiP (), G (2015ApJS,LEDA,...), Rad (BWE,GB6,...), AGN ([VV2000c],[VV2003c],...), IR (IRAS,PSCz,...), smm (JCMTSE,JCMTSF), AG? (2020MNRAS), IG (VV), X ([NA2021]), HI (HIPASS), Opt (SDSS)
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) : 		01 43 02.350 +13 38 44.45 (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) : 		01 40 21.699 +13 23 39.31 [ ]
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) : 		141.606713 -47.346353 [ ]
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) 859 [3] / z(emission) 0.002869 [0.000010] / cz 860.23 [3.00]
   (Rad) C 2022ApJS..261...21Y
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: 		S C 2019MNRAS.488..590B
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): 		6.31 2.40 6 (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 (10) :
B 12.02 [0.10] D 2007ApJS..173..185G
V 11.16 [0.12] D 2007ApJS..173..185G
J 8.531 [0.018] C 2006AJ....131.1163S
H 7.721 [0.019] C 2006AJ....131.1163S
K 7.336 [0.023] C 2006AJ....131.1163S
u (AB) 15.24 [0.01] D 2009ApJS..182..543A
g (AB) 13.423 [0.002] C 2009ApJS..182..543A
r (AB) 12.522 [0.002] C 2009ApJS..182..543A
i (AB) 11.957 [0.003] C 2009ApJS..182..543A
z (AB) 11.620 [0.003] C 2009ApJS..182..543A
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

: 22 		: 7 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (47) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 660 2MASXI J0143014+133838 TC 443 [DML87] 588
BWE 0140+1323 MCG+02-05-013 TGSSADR J014302.1+133845 [M98c] 014020.7+132332
GB6 B0140+1323 2MFGC 1291 TXS 0140+133 [NA2021] 21
87GB 014023.6+132345 MITG J014303+1338 UGC 1201 [NKB95] N0660
GLEAM J014302+133833 MRC 0140+133 UZC J014301.7+133834 [VDD93] 11
HIPASS J0143+13 NAICGB 0140+133 VLSSr J014303.0+133854 [VV2000c] J014301.8+133830
IRAS 01403+1323 NAIC 0140+133 VV 979 [VV2003c] J014301.8+133830
IRAS F01403+1323 NGC 660B WB 0140+1323 [VV2006c] J014301.8+133830
JCMTSE J014302.0+133843 NVSS J014302+133845 Z 437-12 [VV2006c] J014302.5+133842
JCMTSF J014302.0+133843 PRC C-13 Z 0140.3+1323 [VV2010c] J014302.5+133842
LEDA 6318 PSCz Q01403+1323 [CAB95] IRAS F01403+1323 [VV98c] J014301.8+133830
2MASX J01430234+1338444 SDSS J014300.94+133824.1 [DC78] UGC 1201

References (556 between 1850 and 2024) (Total 556)
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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Collections of Measurements


velocities : 14    distance : 7   

   

Observing logs


ISO : 3    XMM : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : NGC 660

Link by name to the catalogue in VizieR :

NGC 660 BWE 0140+1323 HIPASS J0143+13 IRAS 01403+1323 IRAS F01403+1323
2MASX J01430234+1338444 MITG J014303+1338 NVSS J014302+133845 SDSS J014300.94+133824.1 UGC 1201
[DML87] 588

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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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