CDS

NGC 4395

Query : NGC 4395
C.D.S. - SIMBAD4 rel 1.7 - 2021.01.26CET05:14:45

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

Basic data :
NGC 4395 -- 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: 		G (2014AJ,BTS,...), AGN (2012ApJ,[VV2000c],...), X (PBC,SWIFT,...), Sy2 (2012MNRAS), HI ([KOV2009],[KVB99]), gam (INTREF), HII ([CC2002]), GiC (CAIRNS), GiG ([CHM2007]), Sy1 (2012ApJ)
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) : 		12 25 48.8639154223 +33 32 48.694684028 (Optical) [ 0.2017 0.1141 90 ] A 2018yCat.1345....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
FK4 coord. (ep=B1950 eq=1950) : 		12 23 19.8854712486 +33 49 24.927704464 [ 0.2017 0.1141 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) : 		162.0947658060060 +81.5328928450985 [ 0.2017 0.1141 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr : 		-3.209 1.051 [0.333 0.208 90] A 2018yCat.1345....0G
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) 318 [6] / z(spectroscopic) 0.00106 [0.00002] / cz 317.8 [6.0]
   (Opt) C 2013yCat.5139....0A
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 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): 		11.48 4.27 134 (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 (13) :
U (AB) 10.84 [0.03] C 2014MNRAS.445..881C
B (AB) 10.54 [0.03] C 2014MNRAS.445..881C
V (AB) 10.11 [0.03] C 2014MNRAS.445..881C
R (AB) 9.98 [0.03] C 2014MNRAS.445..881C
G 16.5373 [0.0087] C 2018yCat.1345....0G
J 10.660 [0.031] C 2006AJ....131.1163S
H 10.246 [0.045] C 2006AJ....131.1163S
K 9.976 [0.058] C 2006AJ....131.1163S
u (AB) 15.356 [0.012] C 2011yCat.2306....0A
g (AB) 14.548 [0.003] C 2009yCat.2294....0A
r (AB) 14.011 [0.003] C 2009yCat.2294....0A
i (AB) 13.724 [0.003] C 2009yCat.2294....0A
z (AB) 13.710 [0.009] C 2011yCat.2306....0A
SIMBAD with radius arcmin
Interactive AladinLite view
Back
sedIcon
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 ) :

: 4
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

: 158 		: 152 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (38) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 4395 SDSS J122548.86+333248.7 [CHM2007] HDC 706 J122548.92+3332482 [RGG2013] 21
BTS 135 SWIFT J1202.5+3332 [CHM2007] LDC 867 J122548.92+3332482 [VDD93] 158
CAIRNS J122548.92+333248.4 SWIFT J1225.8+3330 [KOV2009] 14 [VV2000c] J122548.9+333248
INTREF 495 SWIFT J1225.7+3331 [KRL2007b] 115 [VV2003c] J122548.9+333248
KUG 1223+338 UGC 7524 [KVB99] 18 [VV2006c] J122548.9+333248
LEDA 40596 UZC J122549.0+333251 [KVC2005] 11 [VV2010c] J122548.9+333248
LJHY 102 2XMM J122548.8+333249 [LLJ2000] NGC 4395 X1 [VV98c] J122548.9+333249
2MASX J12254892+3332482 Z 187-42 [M98c] 122320.9+334922 Gaia DR2 4016037658643693696
MCG+06-27-053 Z 1223.4+3349 [MFH99] A
PBC J1225.7+3331 [CC2002] NGC 4395 99 [MI94] Sm 77

Plots and Images

plot

radius arcmin


CDS portal
CDS Simplay
(requires flash)
Aladin applet

References (1021 between 1850 and 2021) (Total 1021)
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


distance : 10    velocities : 12    PM : 1   

   

Observing logs


ISO : 10    XMM : 4    herschel : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : NGC 4395

Link by name to the catalogue in VizieR :

NGC 4395 KUG 1223+338 2MASX J12254892+3332482 SDSS J122548.86+333248.7 UGC 7524
Gaia DR2 4016037658643693696

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 .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object



Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:NGC 4395 and select 'bookmark this link' or equivalent in the popup menu

2021.01.26-05:14:45

© Université de Strasbourg/CNRS

    • Contact