NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T08:36:22 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. 28

INDEX for NGC 3447a
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
   
8 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
67 Reference(s)   
9 Position data point(s)
12 Redshift data point(s)   
5 Diameter data point(s)   
4 Note(s)   
UGC data    
RC3 data    

ESSENTIAL NOTE for NGC 3447a (Back to INDEX)
Multiple SDSS entries describe this galaxy.                                     

CROSS-IDENTIFICATIONS for NGC 3447a (Back to INDEX)
Object Names Type Object Names Type
NGC 3447aG SDSS J105323.98+164620.8 G
UGC 06006 G KPG 255A G
VV 252a G USGC U340 NED11 G
LSBC D640-02 G ASK 618705.0 G
CGCG 095-058 NED01 G HIPASS J1053+16 RadioS
CGCG 1050.7+1702 NED01 G NSA 111236 G
MCG +03-28-027 G PGC 032694 G
LCSB L0435O G UZC J105324.0+164622 G
2MASXi J1053238+164624 IrS UZC-CG 124 NED04 G
SDSS J105323.97+164620.7 G LGG 225:[G93] 001 G
SDSS J105323.98+164620.7 VisS    

COORDINATES for NGC 3447a (Back to INDEX)

Position Reference:2015NEDR....1M...1S

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  162.684585   17.038672 10h50m44.300s +17d02m19.22s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  163.349917   16.772444 10h53m23.980s +16d46m20.80s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  157.522807    8.951626                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  158.222273    8.953578                              5.00E-01  5.00E-01    0
Galactic              227.563592   60.828806                              5.00E-01  5.00E-01    0
SuperGalactic          90.102397  -22.851022                              5.00E-01  5.00E-01    0
Additional detailed measurements with references are also available by clicking below:
9 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 3447a (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 3447a (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
HierarchyPCPair member, contact system...1976RC2...C...0000d
KinematicsHI line widthHI line width...1990ApJS...72..245S
Luminosity Class8.5LC V...1991RC3.9.C...0000d
Galaxy MorphologySAB(s)m pecSAB(s)m pec...1991RC3.9.C...0000d
15 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for NGC 3447a (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]0.1270.1060.0800.0630.0440.1240.0970.0670.0500.0370.0210.0130.0090.004
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]0.1600.1270.0980.0790.0570.1520.1120.0810.0620.0440.0270.0170.0110.005


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.020 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 3447a (Back to INDEX)
Helio. Radial Velocity     :      1066 +/-        1 km/s      
Redshift                   :  0.003556 +/- 0.000003        1999PASP..111..438F
Major Diameter (arcmin)    :   3.7
Minor Diameter (arcmin)    :   2.1
Magnitude and Filter       : 13.1 
Classifications            : SAB(s)m pec         

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:
12 Redshift data point(s)      8 photometric data point(s)      5 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for NGC 3447a (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :    1066 +/-      1 km/s      1999PASP..111..438F
V (Kinematic LSR)          :    1064 +/-      1 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :     986 +/-      3 km/s      1991RC3.9.C...0000d
V (Local Group)            :     939 +/-      8 km/s      1996AJ....111..794K
V (3K CMB)                 :    1404 +/-     24 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    1201 +/-     20 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    1307 +/-     21 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    1313 +/-     21 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    13.5 +/-    0.9 Mpc      (m-M) = 30.65 +/- 0.15 mag
D (Local Group)            :    12.9 +/-    0.9 Mpc      (m-M) = 30.55 +/- 0.15 mag
D (3K CMB)                 :    19.2 +/-    1.4 Mpc      (m-M) = 31.42 +/- 0.15 mag
D (Virgo Infall only)      :    16.5 +/-    1.2 Mpc      (m-M) = 31.08 +/- 0.15 mag
D (Virgo + GA only)        :    17.9 +/-    1.3 Mpc      (m-M) = 31.27 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    18.0 +/-    1.3 Mpc      (m-M) = 31.27 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :      65 pc/arcsec =  0.065 kpc/arcsec =   3.93 kpc/arcmin =   0.24 Mpc/degree
Scale (Local Group)        :      62 pc/arcsec =  0.062 kpc/arcsec =   3.74 kpc/arcmin =   0.22 Mpc/degree
Scale (3K CMB)             :      93 pc/arcsec =  0.093 kpc/arcsec =   5.60 kpc/arcmin =   0.34 Mpc/degree
Scale (Virgo Infall only)  :      80 pc/arcsec =  0.080 kpc/arcsec =   4.79 kpc/arcmin =   0.29 Mpc/degree
Scale (Virgo + GA only)    :      87 pc/arcsec =  0.087 kpc/arcsec =   5.21 kpc/arcmin =   0.31 Mpc/degree
Scale(Virgo + GA + Shapley):      87 pc/arcsec =  0.087 kpc/arcsec =   5.23 kpc/arcmin =   0.31 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 = 19.118 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 1066 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.004685 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 19.3 Mpc (m-M) = 31.43 mag Angular-Size Distance : 19.1 Mpc (m-M) = 31.41 mag Co-Moving Radial Distance : 19.2 Mpc (m-M) = 31.42 mag Co-Moving Tangential Dist. : 19.2 Mpc (m-M) = 31.42 mag Co-Moving Volume : 2.97e-05 Gpc^3 Light Travel-Time : 0.063 Gyr Age at Redshift 0.004685 : 13.236 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 93 pc/arcsec = 0.093 kpc/arcsec = 5.57 kpc/arcmin = 0.33 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.98148; Magnitude per Unit Area = 0.0203 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 3447a (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)]
UltravioletNUV (GALEX) AB 15.72 +/- 0.03 mag 2010A&A...511A..29M-15.71 +/- 0.50 [mag] 2.86E+08 +/- 5.78E+07
VisualB (m_B^0) 12.79 mag 1991RC3.9.C...0000d-18.64 [mag] 2.58E+09
Radio2380 MHz 1. +/- 4. milliJy 1978ApJS...36...53D 1.06E+29 +/- 4.25E+29 [W] 2.76E+02 +/- 1.11E+03
NOTE: The above quantities are derived using a Distance Modulus of 31.43 mag corresponding to
a Luminosity Distance of 19.3 Mpc [assuming 10%uncertainty] using the Cosmology-Corrected Quantities.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 8 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 3447a (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 252.00138.600 About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N21.9712.08
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.087 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 5 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 3447a Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- NGC 3447aSIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 3447aVizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 06006 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Morphological Catalog of Galaxies -- MCG +03-28-027 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASXi J1053238+164624 NASA/IPAC Infrared Science Archive (IRSA)
version
SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 032694 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 032694 The Lyon/Meudon Extragalactic Database (LEDA)
Query UZC Spectral Archive (60 arcsec search radius)Updated Zwicky Catalog Data (Harvard/SAO)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 3447aGALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 3447aNASA/IPAC Infrared Science Archive (IRSA)
Resources for position 10h53m24.0s, +16d46m21s (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)
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)
The NRAO Data Archive System





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