Date and Time of the Query: 2019-05-21 T08:44:46 PDT
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Velocity(km/s): Unconstrained
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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

Detailed Information for Object No. 1

INDEX for NGC 4490
Essential Data (jump to sub-section of this query report):

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

125 Photometric data point(s) and SED   
Redshift-Independent Distances
541 Reference(s)   
36 Position data point(s)
24 Redshift data point(s)   
8 Diameter data point(s)   
11 Note(s)   
1 Association(s)   
UGC data    
RC3 data    


Object Names Type Object Names Type
NGC 4490G CXOU J123036.2+413838 XrayS
UGC 07651 G CXOU J123036.3+413837 XrayS
ARP 269 NED02 G RX J1230.5+4139 XrayS
VV 030a G 2XMM J123035.9+413840 XrayS
CGCG 216-008 G 2XMMp J123035.9+413840 XrayS
CGCG 1228.1+4155 G CXO J123036.26+413837.9 XrayS
MCG +07-26-014 G [H92] 25 G
B3 1228+419A RadioSLGG 290:[G93] 008 G
2MASX J12303636+4138370 IrS NGC 4490:[RPS97] 03 XrayS
2MASXi J1230368+413825 IrS [M98j] 170 NED60 G
IRAS 12281+4155 IrS NGC 4490:[RW2000] X-02 XrayS
IRAS F12281+4155 IrS [SGT2004] J123036.32+413837.8 XrayS
ISOSS J12305+4139 IrS [SLK2004] 0716 IrS
KPG 341B G [VHC2007a] ULX5 XrayS
LDCE 0867 NED117 G ARP 269:[LM2005] ULX04 XrayS
HDCE 0706 NED072 G NGC 4490:[FK2005] 15 XrayS
USGC U480 NED10 G NGC 4490:[LB2005] X01 XrayS
HOLM 414A G NGC 4490:[WMR2006] XMM2 XrayS
NSA 141527 G [DMA2007] J123036.33+413837.78XrayS
PGC 041333 G [TCW2007] 123 G
UZC J123036.1+413834 G ARP 269:[FHL2008] 27 XrayS
11HUGS 289 G NGC 4490:[FHL2008] ULX-6 XrayS
87GB 122809.0+415515 RadioS[STS2009a] J123036.32+413837.8XrayS
87GB[BWE91] 1228+4155 RadioSWSRT-CVn [KOV2009] 67A RadioS
[WB92] 1228+4155 RadioS[SST2011] J123036.32+413837.8 XrayS
VLSS J1230.5+4138 RadioSNGC 4490:[L2011a] X0005 XrayS
HIJASS J1230+41 G NGC 4490:[MGS2012] 01 XrayS
CXO J123036.2+413838 XrayS [BDT2013] 14 XrayS
CXOU J123036.2+413837 XrayS    

COORDINATES for NGC 4490 (Back to INDEX)

Position Reference:2010ApJS..189...37E

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 187.0421469  41.9199457 12h28m10.115s +41d55m11.80s  2.40E-01  2.40E-01    0
Equatorial (J2000.0) 187.6509958  41.6438978 12h30m36.239s +41d38m38.03s  2.40E-01  2.40E-01    0
Ecliptic   (B1950.0) 166.1455334  40.4834306                              2.40E-01  2.40E-01    0
Ecliptic   (J2000.0) 166.8495236  40.4844699                              2.40E-01  2.40E-01    0
Galactic             137.9960108  74.8694123                              2.40E-01  2.40E-01    0
SuperGalactic         74.7867869   5.9367554                              2.40E-01  2.40E-01    0
Additional detailed measurements with references are also available by clicking below:
36 Position data point(s)


16 Distances found in NED View 16 Individual Distance Measurement(s) for NGC 4490

Summary Statistics computed by NED from 16 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 4490 Distance Modulus
Metric Distance
Mean 28.88 6.205
Std. Dev. 0.61 1.834
Min. 28.12 4.210
Max. 30.02 10.100
Median 28.90 6.030

TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyPPPair member (points to parent)...1972AISAO...7....3K
KinematicsHI line widthHI line width...1981ApJS...47..139F
Luminosity Class7.0LC IV...1991RC3.9.C...0000d
Galaxy MorphologySB(s)d pecSB(s)d pec...1991RC3.9.C...0000d
Distance IndicatorTully-FisherTully-Fisher...2007A&A...465...71T
51 Detailed Classification(s)

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]0.0940.0790.0600.0470.0330.0920.0720.0500.0370.0270.0150.0100.0070.003
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]0.1180.0930.0720.0580.0420.1120.0820.0600.0450.0320.0200.0120.0080.003

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.000 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 4490 (Back to INDEX)
Helio. Radial Velocity     :       565 +/-        3 km/s      
Redshift                   :  0.001885 +/- 0.000010        1992ApJS...83...29S
Major Diameter (arcmin)    :   6.3
Minor Diameter (arcmin)    :   3.1
Magnitude and Filter       : 10.22
Classifications            : SB(s)d 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:
24 Redshift data point(s)      125 photometric data point(s)      8 Diameter data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :     565 +/-      3 km/s      1992ApJS...83...29S
V (Kinematic LSR)          :     573 +/-      3 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     611 +/-      4 km/s      1991RC3.9.C...0000d
V (Local Group)            :     602 +/-      4 km/s      1996AJ....111..794K
V (3K CMB)                 :     794 +/-     16 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     613 +/-      4 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :     669 +/-      5 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :     673 +/-      5 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    8.36 +/-   0.59 Mpc      (m-M) = 29.61 +/- 0.15 mag
D (Local Group)            :    8.25 +/-   0.58 Mpc      (m-M) = 29.58 +/- 0.15 mag
D (3K CMB)                 :   10.88 +/-   0.79 Mpc      (m-M) = 30.18 +/- 0.15 mag
D (Virgo Infall only)      :    8.40 +/-   0.59 Mpc      (m-M) = 29.62 +/- 0.15 mag
D (Virgo + GA only)        :    9.17 +/-   0.65 Mpc      (m-M) = 29.81 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    9.22 +/-   0.65 Mpc      (m-M) = 29.82 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      41 pc/arcsec =  0.041 kpc/arcsec =   2.43 kpc/arcmin =   0.15 Mpc/degree
Scale (Local Group)        :      40 pc/arcsec =  0.040 kpc/arcsec =   2.40 kpc/arcmin =   0.14 Mpc/degree
Scale (3K CMB)             :      53 pc/arcsec =  0.053 kpc/arcsec =   3.17 kpc/arcmin =   0.19 Mpc/degree
Scale (Virgo Infall only)  :      41 pc/arcsec =  0.041 kpc/arcsec =   2.44 kpc/arcmin =   0.15 Mpc/degree
Scale (Virgo + GA only)    :      44 pc/arcsec =  0.044 kpc/arcsec =   2.67 kpc/arcmin =   0.16 Mpc/degree
Scale(Virgo + GA + Shapley):      45 pc/arcsec =  0.045 kpc/arcsec =   2.68 kpc/arcmin =   0.16 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 = 37.302 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 565 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.002650 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 10.9 Mpc (m-M) = 30.19 mag Angular-Size Distance : 10.8 Mpc (m-M) = 30.18 mag Co-Moving Radial Distance : 10.9 Mpc (m-M) = 30.18 mag Co-Moving Tangential Dist. : 10.9 Mpc (m-M) = 30.18 mag Co-Moving Volume : 5.39e-06 Gpc^3 Light Travel-Time : 0.035 Gyr Age at Redshift 0.002650 : 13.263 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 53 pc/arcsec = 0.053 kpc/arcsec = 3.16 kpc/arcmin = 0.19 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.98947; Magnitude per Unit Area = 0.01149 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


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).

Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
X-Ray2-10 keV (XMM) 38E-14 erg/s/cm^2^ 2011MNRAS.413.1206B 1.75E+32 [W] 4.55E+05
UltravioletUV_3150 (m_T) 9.64 +/- 0.28 mag 1995A&AS..114..527R-19.24 +/- 0.46 [mag] 1.90E+09 +/- 6.29E+08
VisualV (V_T^0) 9.38 mag 1991RC3.9.C...0000d-19.50 [mag] 4.18E+09
Near-InfraredH_tot (2MASS LGA) 7.643 +/- 0.023 mag 2003AJ....125..525J-21.24 +/- 0.37 [mag] 1.96E+09 +/- 2.92E+08
Mid-Infrared25 microns (IRAS) 5.34 +/- 0.80 Jy 2004AJ....127.3235S 2.95E+35 +/- 6.21E+34 [W] 7.68E+08 +/- 1.62E+08
Far-Infrared170 microns (ISO) 190.35 +/- 15 % Jy 2004A&A...422...39S 1.54E+36 +/- 3.25E+35 [W] 4.01E+09 +/- 8.45E+08
Millimeter1 mm 3.5 +/- 0.6 Jy 1984A&A...137..117C 4.84E+33 +/- 1.09E+33 [W] 1.26E+07 +/- 2.85E+06
Radio750 MHz (NRAO) 1.3 Jy 1964AJ.....69..277H 4.49E+30 [W] 1.17E+04
NOTE: The above quantities are derived using an estimated Distance Modulus of (28.88 +/- 0.61) mag corresponding to
a Metric Distance of (6.205 +/- 1.834) 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 125 Photometric data point(s) available in NED.


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

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
POSS1 103a-O 420.00210.00124 About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N12.636.32
K_s (LGA/2MASS "total") 425.80183.09115 Diameter for "total" magnitude 2003AJ....125..525J2003AJ....125..525J12.815.51
NOTE: Physical diameters are derived using a scale of 0.0301 kpc/arcsec based on Average NED-D Metric Distance of (6.205 +/- 1.834) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 8 Diameter data point(s) available in NED.

Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 4490SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 4490VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 07651 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 216-008 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 +07-26-014 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
The Third Bologna Survey -- B3 1228+419A VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J12303636+4138370 NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J1230368+413825 NASA/IPAC Infrared Science Archive (IRSA)
IRAS Point Source Catalog -- IRAS 12281+4155 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
IRAS Faint Source Catalog -- IRAS F12281+4155 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Catalogue of Principal Galaxies -- PGC 041333 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 041333 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 4490GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 4490NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h30m36.2s, +41d38m38s (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)
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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