NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-12-13 T11:40:14 PST
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You have selected the following parameters to search on:

Parameters for Distances and Cosmology: Ho= 73.0; Ωmatter = 0.27; Ωvacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

NED results for object NGC 4809


1 objects found in NED.    

SOURCE LIST

 Row          Object Name                 EquJ2000.0       Object  Velocity/Redshift    Mag./  Separ.               Number of                                 Row 
 No.     (* => Essential Note)       RA               DEC  Type     km/s       z   Qual Filter arcmin Refs Notes Phot Posn Vel/z Diam Assoc Images   Spectra  No. 
1   *NGC 4809                       12h54m51.0s +02d39m15s G         915  0.003052      14.3B    ...    94     7   51   11    15   13     1 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 4809

INDEX for NGC 4809
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Cross-IDs    
   Coordinates    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Quick-Look Angular and Physical Sizes
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images
   
51 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
94 Reference(s)   
11 Position data point(s)
15 Redshift data point(s)   
13 Diameter data point(s)   
7 Note(s)   
1 Association(s)   
UGC data    
RC3 data    

ESSENTIAL NOTE for NGC 4809 (Back to INDEX)
NGC gives only one pos. for N4809 & N4810. NED follows CGCG and RC2.            

CROSS-IDENTIFICATIONS for NGC 4809 (Back to INDEX)
Object Names Type Object Names Type
NGC 4809G KPG 358B G
UGC 08034 G USGC U490 NED10 G
ARP 277 NED01 G ASK 078314.0 G
VV 313a G HIR J1254+0240 RadioS
UM 523 EmLS HOLM 486A G
CGCG 043-062 G NSA 162575 G
CGCG 1252.3+0256 G PGC 043969 G
MCG +01-33-022 G UZC J125451.1+023914 G
SHOC 392 G WVFSCC J125451+024046 RadioS
SDSS J125451.06+023914.7 G EVCC 1237 G
SDSS J125451.07+023914.7 G LGG 292:[G93] 055 G
SDSS J125451.12+023914.7 G    

COORDINATES for NGC 4809 (Back to INDEX)

Position Reference:2007SDSS6.C...0000:

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  193.075224    2.924917 12h52m18.054s +02d55m29.70s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  193.712759    2.654089 12h54m51.062s +02d39m14.72s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  190.879895    7.857497                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  191.579310    7.855700                              5.00E-01  5.00E-01    0
Galactic              304.988631   65.512201                              5.00E-01  5.00E-01    0
SuperGalactic         113.884074    0.678599                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
11 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 4809 (Back to INDEX)

2 Distances found in NED View 2 Individual Distance Measurement(s) for NGC 4809

Summary Statistics computed by NED from 2 Distance(s) in the literature:
NOTE: These summary statistics are provided for "quick-look" reference only;
they are based exclusively on original values, as published.
No homogenization or corrections have been applied.


NGC 4809 Distance Modulus
(mag)
Metric Distance
(Mpc)
Mean 31.19 17.850
Std. Dev. 0.76 6.152
Min. 30.65 13.500
Max. 31.73 22.200
Median 31.19 17.850

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 4809 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyPPPair member (points to parent)...1972AISAO...7....3K
KinematicsHI line widthHI line width...1976A&A....46..381H
Luminosity Class10.0LC V-VI...1991RC3.9.C...0000d
Galaxy MorphologyIm pecIm pec...1991RC3.9.C...0000d
Distance IndicatorTully-FisherTully-Fisher...1988NBGC.C....0000T
22 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 4809 (Back to INDEX)
Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration 
of the Schlegel, Finkbeiner & Davis 1998, Appendix B; 1998ApJ...500..525S (SFD98) infrared-based dust map.
The map is based on dust emission from COBE/DIRBE and IRAS/ISSA;
the recalibration assumes a Fitzpatrick (1999PASP..111...63F) reddening law with Rv = 3.1 and different source spectrum than SFD98.

L a n d o l tS D S SU K I R T
Filter [µm]U (0.35)B (0.43)V (0.54)R (0.64)I (0.80)u (0.36)g (0.47)r (0.62)i (0.75)z (0.89)J (1.25)H (1.66)K (2.19)L' (3.78)
Aλ [mag]0.1480.1240.0940.0740.0510.1450.1130.0780.0580.0430.0240.0150.0100.005
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values:
L a n d o l tS D S SU K I R T
Filter [µm]U (0.34)B (0.44)V (0.54)R (0.65)I (0.81)u (0.35)g (0.49)r (0.63)i (0.78)z (0.93)J (1.27)H (1.67)K (2.22)L' (3.81)
Aλ [mag]0.1870.1490.1140.0920.0670.1780.1310.0950.0720.0510.0310.0200.0130.005


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.030 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 4809 (Back to INDEX)
Helio. Radial Velocity     :       915 +/-        6 km/s      
Redshift                   :  0.003052 +/- 0.000020        1991RC3.9.C...0000d
Major Diameter (arcmin)    :  1.7 
Minor Diameter (arcmin)    :  0.7 
Magnitude and Filter       : 14.3B
Classifications            : Im pec         HII  

NOTE: This information is indicative only. With the exception of the
      redshift they are unreferenced and highly inhomogeneous as to
      their origin. The Radial Velocity (when available) is computed
      from the listed redshift. The remaining values are designed to
      orient the user with a quick-look, overall assessment of the
      general properties of the object in question. They are not
      averages nor are they standardized in any way.
Additional detailed measurements with references are also available by clicking below:
15 Redshift data point(s)      51 photometric data point(s)      13 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 4809 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :     915 +/-      6 km/s      1991RC3.9.C...0000d
V (Kinematic LSR)          :     919 +/-      6 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     845 +/-      7 km/s      1991RC3.9.C...0000d
V (Local Group)            :     784 +/-     10 km/s      1996AJ....111..794K
V (3K CMB)                 :    1244 +/-     24 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     485 +/-     23 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :     493 +/-     23 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :     492 +/-     23 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    11.6 +/-    0.8 Mpc      (m-M) = 30.32 +/- 0.15 mag
D (Local Group)            :    10.7 +/-    0.8 Mpc      (m-M) = 30.16 +/- 0.15 mag
D (3K CMB)                 :    17.0 +/-    1.2 Mpc      (m-M) = 31.16 +/- 0.15 mag
D (Virgo Infall only)      :     6.6 +/-    0.6 Mpc      (m-M) = 29.11 +/- 0.17 mag
D (Virgo + GA only)        :     6.8 +/-    0.5 Mpc      (m-M) = 29.15 +/- 0.15 mag
D (Virgo + GA + Shapley)   :     6.7 +/-    0.5 Mpc      (m-M) = 29.14 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      56 pc/arcsec =  0.056 kpc/arcsec =   3.37 kpc/arcmin =   0.20 Mpc/degree
Scale (Local Group)        :      52 pc/arcsec =  0.052 kpc/arcsec =   3.12 kpc/arcmin =   0.19 Mpc/degree
Scale (3K CMB)             :      83 pc/arcsec =  0.083 kpc/arcsec =   4.96 kpc/arcmin =   0.30 Mpc/degree
Scale (Virgo Infall only)  :      32 pc/arcsec =  0.032 kpc/arcsec =   1.93 kpc/arcmin =   0.12 Mpc/degree
Scale (Virgo + GA only)    :      33 pc/arcsec =  0.033 kpc/arcsec =   1.96 kpc/arcmin =   0.12 Mpc/degree
Scale(Virgo + GA + Shapley):      33 pc/arcsec =  0.033 kpc/arcsec =   1.96 kpc/arcmin =   0.12 Mpc/degree

To Search for Nearby Objects (Physical Companions): Enter Your Preferred Values and click on "Submit Environment Search" button
Search for Objects within +/-arcmin where 100 kpc = 51.000 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 915 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.004151 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 17.1 Mpc (m-M) = 31.17 mag Angular-Size Distance : 17 Mpc (m-M) = 31.15 mag Co-Moving Radial Distance : 17 Mpc (m-M) = 31.16 mag Co-Moving Tangential Dist. : 17 Mpc (m-M) = 31.16 mag Co-Moving Volume : 2.07e-05 Gpc^3 Light Travel-Time : 0.055 Gyr Age at Redshift 0.004151 : 13.243 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 82 pc/arcsec = 0.082 kpc/arcsec = 4.93 kpc/arcmin = 0.30 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.98357; Magnitude per Unit Area = 0.01799 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
HoΩmatterΩvacuum     
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for NGC 4809 (Back to INDEX)

The brightest flux in each of the following spectral regions, when available:
Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

Spectral
Region
Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
UltravioletUV_1650 (m_T) 11.79 +/- 0.32 mag 1995A&AS..114..527R-19.40 +/- 1.26 [mag] 1.14E+09 +/- 6.81E+08
VisualB (m_B^0) 13.93 mag 1991RC3.9.C...0000d-17.26 [mag] 7.70E+08
Radio1.4 GHz (VLA) 6.8 milliJy 2002AJ....124..675C 3.63E+29 [W] 9.44E+02
NOTE: The above quantities are derived using an estimated Distance Modulus of (31.19 +/- 0.76) mag corresponding to
a Metric Distance of (17.850 +/- 6.152) Mpc using the Average NED-D value.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 51 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 4809 (Back to INDEX)

The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
PA
[degrees]
(J2000.0)
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
POSS1 103a-O 108.0035.6466 About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N9.353.08
NOTE: Physical diameters are derived using a scale of 0.0865 kpc/arcsec based on Average NED-D Metric Distance of (17.850 +/- 6.152) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 13 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 4809 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 4809SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4809VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 08034 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 043-062 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
Morphological Catalog of Galaxies -- MCG +01-33-022 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
version
SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 043969 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 043969 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4809GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4809NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h54m51.0s, +02d39m15s (J2000)Site/Service
Query Optical and UV Mission Archives (Default search radius)Multimission Archive at STScI (MAST)
Query High Energy Mission Archives (Default search radius)HEASARC (NASA/GSFC)
Explore resources with DataScope (15 arcmin search radius)HEASARC (NASA/GSFC)
version
SDSS Sky Server
Query IRSA for WISE images (10 arcmin search radius)NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
NASA/IPAC Infrared Science Archive (IRSA)
 Size:    Contours (PS)  JPEG  FITS File 
NRAO/VLA Sky Survey (NVSS)
    Size:     GIF     FITS File  
Faint Images of the Radio Sky at Twenty-Centimeters
The NRAO Data Archive System

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