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Query : coord 147.185198866667+44.0831659666667 (FK5, 2000, 2000), radius: 1 arcmin

deg arc min arc sec

C.D.S. - SIMBAD4 rel 1.7 - 2021.03.06CET03:21:29

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

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Basic data :
NGC 2998 -- LINER-type Active Galaxy Nucleus Distance to the center arcsec: 10.78 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: G (2015ApJ,ECO,...), IR (IRAS,PSCz), GiG ([CHM2007]), rG (2012MNRAS), LIN (2014ApJ), HI (2016A&A), Rad (NVSS) 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) : 09 48 43.633 +44 04 53.15 (Optical) [ 6 5 90 ] C 2015ApJS..219...12A 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) : 09 45 34.308 +44 18 51.48 [ 6 5 90 ] 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) : 175.718090 +49.810219 [ 6 5 90 ] 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) 4732 [3] / z(spectroscopic) 0.01591 [0.00001] / cz 4769.7 [3.0]    (Opt) C 2012ApJS..203...21A 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: SA 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): 1.080 0.562 55 (NIR) 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 (9) : B 13.3 [~] D 1999PASP..111..438F J 10.927 [0.028] C 2006AJ....131.1163S H 10.196 [0.030] C 2006AJ....131.1163S K 9.926 [0.038] C 2006AJ....131.1163S u (AB) 14.435 [0.005] B 2012ApJS..203...21A g (AB) 13.194 [0.002] B 2012ApJS..203...21A r (AB) 12.557 [0.002] B 2012ApJS..203...21A i (AB) 12.239 [0.002] B 2012ApJS..203...21A z (AB) 12.031 [0.002] B 2012ApJS..203...21A	SIMBAD with radius arcmin Interactive AladinLite view 2MASS DSS SDSSXMMIRACIRISGALEX VizieR photometry viewer    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!).

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Hierarchy : number of linked objects whatever the membership probability is (see description here ) : : 4 : 7 Display criteria : All >=90% stars galaxies radio IR <2 arcsec #ref>50

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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature. Identifiers (18) :

An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 2998	MaNGA 1-166892	PSCz Q09455+4418	Z 0945.5+4418
ECO 6026	MaNGA 8458-12705	SDSS J094843.63+440453.1	[CHM2007] LDC 680 J094843.63+4404526
IRAS 09455+4418	2MASX J09484363+4404526	UGC 5250	[M98c] 094534.3+441850
KUG 0945+443	MCG+07-20-051	UZC J094843.6+440452
LEDA 28196	NVSS J094843+440451	Z 210-36

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References (192 between 1850 and 2021) (Total 192) 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 :

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Collections of Measurements

distance : 5    velocities : 12   

   

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External archives :

Data at NED - NASA/IPAC Extragalactic Database : NGC 2998

Link by name to the catalogue in VizieR :

NGC 2998	IRAS 09455+4418	KUG 0945+443	2MASX J09484363+4404526	NVSS J094843+440451
SDSS J094843.63+440453.1	UGC 5250

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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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