NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-12 T18:14:05 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 SEXTANS A


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   *Sextans A                      10h11m00.8s -04d41m34s G         324  0.001081      11.86    ...   418    15   48   28    17    4     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - Sextans A

INDEX for Sextans A
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
  • 48 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    418 Reference(s)   
    28 Position data point(s)
    17 Redshift data point(s)   
    4 Diameter data point(s)   
    15 Note(s)   
    RC3 data    

    ESSENTIAL NOTE for Sextans A (Back to INDEX)
    Position in 1975A&A....19....1G refers to a starcloud southeast of the center.  
    

    CROSS-IDENTIFICATIONS for Sextans A (Back to INDEX)
    Object Names Type Object Names Type
    Sextans AG AGC 500034 G
    UGCA 205 G HIPASS J1010-04 RadioS
    DDO 075 G PGC 029653 G
    MCG -01-26-030 G 11HUGS 190 G
    IRAS F10085-0427 IrS GLXY G246.1+39.9+314 RadioS
    CGS 615 G [HMS56] 1008.7-0428 G
    [RC2] A1008-04 G [SPB93] 137 G
    [RC1] A1009 G    
         

    COORDINATES for Sextans A (Back to INDEX)

    Position Reference:1999NEDR....1....1C

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)   152.12301    -4.44597  10h08m29.52s  -04d26m45.5s  5.00E+00  5.00E+00    0
    Equatorial (J2000.0)   152.75333    -4.69278  10h11m00.80s  -04d41m34.0s  5.00E+00  5.00E+00    0
    Ecliptic   (B1950.0)   155.75851   -14.86830                              5.00E+00  5.00E+00    0
    Ecliptic   (J2000.0)   156.45537   -14.86619                              5.00E+00  5.00E+00    0
    Galactic               246.14823    39.87558                              5.00E+00  5.00E+00    0
    SuperGalactic          109.00627   -40.66216                              5.00E+00  5.00E+00    0
    
    Additional detailed measurements with references are also available by clicking below:
    28 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for Sextans A (Back to INDEX)

    53 Distances found in NED View 53 Individual Distance Measurement(s) for Sextans A

    Summary Statistics computed by NED from 53 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.


    Sextans A Distance Modulus
    (mag)
    Metric Distance
    (Mpc)
    Mean 25.75 1.427
    Std. Dev. 0.27 0.196
    Min. 24.99 0.996
    Max. 26.80 2.290
    Median 25.74 1.410

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for Sextans A (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyF?Possible field galaxy...1979AN....300..181K
    KinematicsHI line widthHI line width...2004AJ....128...16K
    Luminosity Class10.0LC V-VI...1991RC3.9.C...0000d
    Galaxy MorphologyIBmIBm...1991RC3.9.C...0000d
    Distance IndicatorTully-FisherTully-Fisher...1988NBGC.C....0000T
    60 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for Sextans A (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]0.1930.1610.1220.0970.0670.1890.1470.1020.0760.0560.0320.0200.0130.007
    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]0.2370.1880.1450.1170.0850.2250.1650.1200.0910.0640.0390.0250.0160.007


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.070 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for Sextans A (Back to INDEX)
    Helio. Radial Velocity     :       324 +/-        2 km/s      
    Redshift                   :  0.001081 +/- 0.000007        2004AJ....128...16K
    Major Diameter (arcmin)    :   5.9
    Minor Diameter (arcmin)    :   4.9
    Magnitude and Filter       : 11.86
    Classifications            : IBm                 
    
    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:
    17 Redshift data point(s)      48 photometric data point(s)      4 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for Sextans A (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :     324 +/-      2 km/s      2004AJ....128...16K
    V (Kinematic LSR)          :     315 +/-      2 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :     163 +/-      7 km/s      1991RC3.9.C...0000d
    V (Local Group)            :      94 +/-     14 km/s      1996AJ....111..794K
    V (3K CMB)                 :     682 +/-     25 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :      91 +/-     14 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :      95 +/-     14 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :      95 +/-     14 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    FLOW MODEL DOES NOT APPLY
    D (Local Group)            :     N/A   
    D (3K CMB)                 :     N/A   
    D (Virgo Infall only)      :     N/A   
    D (Virgo + GA only)        :     N/A   
    D (Virgo + GA + Shapley)   :     N/A   
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     N/A 
    Scale (Local Group)        :     N/A 
    Scale (3K CMB)             :     N/A 
    Scale (Virgo Infall only)  :     N/A 
    Scale (Virgo + GA only)    :     N/A 
    Scale(Virgo + GA + Shapley):     N/A 
    
    
    To Search for Nearby Objects (Physical Companions): Enter Your Preferred Values and click on "Submit Environment Search" button
    Search for Objects within +/-arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 324 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift -0.003329 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Cosmology Computations unstable or undefined

    QUICK-LOOK PHOTOMETRY and LUMINOSITIES for Sextans A (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for Sextans A (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]
    RC3 D_25; R_25 (blue) 353.30293.24... 25.0 B-mag arcsec^-2^ 1991RC3.9.C...0000d2.442.03
    NOTE: Physical diameters are derived using a scale of 0.0069 kpc/arcsec based on Average NED-D Metric Distance of (1.427 +/- 0.196) Mpc.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 4 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for Sextans A Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- Sextans ASIMBAD (CDS, Strasbourg, France)
    Morphological Catalog of Galaxies -- MCG -01-26-030 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    IRAS Faint Source Catalog -- IRAS F10085-0427 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Catalogue of Principal Galaxies -- PGC 029653 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 029653 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- Sextans AGALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- Sextans ANASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 10h11m00.8s, -04d41m34s (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)
    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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