NGC 3994

Query : NGC 3994

Basic data :
NGC 3994 -- LINER-type Active Galaxy Nucleus
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,APG,...), Rad (B2,6C,...), AGN ([VV2000c],[VV2003c],...), GiG (K79,[CHM2007],...), GiP ([BGK2003],[T76]), LIN (2014ApJ), Q? (FBQS), IG (VV), * (Gaia), HI (2016A&A), IR (IRAS)
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) :
11 57 36.8662975416 +32 16 39.447161112 (Optical) [ 13.1005 29.7522 90 ] C 2020yCat.1350....0G
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
FK5 coord. (ep=J2000 eq=2000) :
11 57 36.8669902833 +32 16 39.437854472 [ 13.1005 29.7522 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
FK4 coord. (ep=B1950 eq=1950) :
11 55 02.4323496304 +32 33 21.366579426 [ 13.1005 29.7522 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) :
185.9105749082502 +77.2412710824345 [ 13.1005 29.7522 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) 3066 [3] / z(spectroscopic) 0.01028 [0.00001] / cz 3081.9 [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):
0.817 0.441 10 (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 (11) :
B 13.51 [~] D 2010A&A...518A..10V
V 12.87 [~] D 2010A&A...518A..10V
G 18.744251 [0.044906] C 2020yCat.1350....0G
J 10.757 [0.013] C 2006AJ....131.1163S
H 10.038 [0.012] C 2006AJ....131.1163S
K 9.719 [0.017] C 2006AJ....131.1163S
u (AB) 15.149 [0.005] B 2012ApJS..203...21A
g (AB) 13.597 [0.002] B 2012ApJS..203...21A
r (AB) 12.678 [0.002] B 2012ApJS..203...21A
i (AB) 12.222 [0.002] B 2012ApJS..203...21A
z (AB) 11.907 [0.002] B 2012ApJS..203...21A
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 ) :

: 5 : 9 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (45) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 3994 87GB 115506.6+323354 SDSS J115736.86+321639.4 [DC78] UGC 6944
APG 313 IRAS F11551+3233 UGC 6936 [T76] 46B
Ark 337 IRAS F11550+3233 UZC J115736.9+321639 [VV2000c] J115736.7+321641
B2.1 1155+32 IRAS 11550+3233 VV 249b [VV2003c] J115736.7+321641
6C 115503+323501 K79 39B WN B1155.0+3234B [VV2006c] J115736.7+321641
7C 115503.20+323329.00 KUG 1155+325A Z 1155.0+3233 [VV2010c] J115736.7+321641
7C 115508.40+323404.00 LEDA 37616 Z 186-74 [VV98c] J115736.7+321641
CASG 138 LJHY 26 [BGK2003] B115502.2+323319 [WGB2006] 115454+32360 c
ECO 3204 2MASX J11573685+3216400 [CAB95] IRAS F11550+3233 Gaia DR3 4027487835296775808
FBQS J1157+3216 MCG+06-26-059 [CHM2007] HDC 683 J115736.85+3216400
FIRST J115736.8+321638 MY 115503.2+321732.9 [CHM2007] LDC 852 J115736.85+3216400
GB6 B1155+3233 NVSS J115736+321639 [DC78] UGC 6936

References (39 between 2017 and 2022) (Total 178)
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 :

                from: to:

                 or select by : (not exhaustive, explanation here)


Collections of Measurements


velocities : 19    distance : 2   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

velocities (19)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  | 2981                  |  (    )|se, ,Rad ,           |          |       |  |2018ApJ...861...49H|
 

distance (2)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |   49.33    Mpc |                       |redshift|2007ApJ...655..790C|
 
Observing logs


herschel : 4    IUE : 2   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

herschel (4)

The 1 column in color are computed by VizieR, and are not part of the original data.

Note: (see also the postcard server)

VI/139/herschel
Post annotation
Herschel Observation Log (Herschel Science Centre, 2013) [ReadMe+ftp]
2013yCat.6139....0H

The Herschel Observation Log (37093 rows)
img(gal)
start AladinLite

Full _r OD Target RAJ2000 DEJ2000 Proposal AOT Dur Start ObsId PACS HIFI SPIRE Label arcmin "h:m:s" "d:m:s" s s
1 2.0912 593 Arp 313 centre 3 galaxies 11 57 38.80 +32 18 42.5 KPGT_esturm_1 PacsPhoto 815 2010-12-27T21:23:14 1342211802 get Herschel/PACS observation #1342211802 PacsGreen_ScMap7'ori135_Arp313 2 2.0912 593 Arp 313 centre 3 galaxies 11 57 38.80 +32 18 42.5 KPGT_esturm_1 PacsPhoto 815 2010-12-27T21:08:36 1342211801 get Herschel/PACS observation #1342211801 PacsGreen_ScMap7'ori45_Arp313 3 2.0912 593 Arp 313 centre 3 galaxies 11 57 38.80 +32 18 42.5 KPGT_esturm_1 PacsPhoto 815 2010-12-27T20:53:58 1342211800 get Herschel/PACS observation #1342211800 PacsBlue_ScMap7'ori135_Arp313 4 2.0912 593 Arp 313 centre 3 galaxies 11 57 38.80 +32 18 42.5 KPGT_esturm_1 PacsPhoto 815 2010-12-27T20:39:20 1342211799 get Herschel/PACS observation #1342211799 PacsBlue_ScMap7'ori45_Arp313

iue (2)

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |NGC 3994        :            |EE138|80|L LWR 15199 L|      BO|830206 070850|024000| |308|V|                    |*|1996IUEML.C......0I|
 

External archives :

Data at NED - NASA/IPAC Extragalactic Database : NGC 3994

Link by name to the catalogue in VizieR :

NGC 3994 APG 313 FIRST J115736.8+321638 IRAS F11551+3233 IRAS F11550+3233
IRAS 11550+3233 KUG 1155+325A 2MASX J11573685+3216400 NVSS J115736+321639 SDSS J115736.86+321639.4
UGC 6936 WN B1155.0+3234B

Search by coordinates in Vizier (radius: 5 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 .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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report an error concerning the data of this object



2022.10.05-13:58:17

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