NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2021-12-02 T16:44:36 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 1581


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 1581                       04h24m44.9s -54d56m31s G        1600  0.005337      13.61    ...    47     2   48   12     6   17     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - NGC 1581

INDEX for NGC 1581
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
    47 Reference(s)   
    12 Position data point(s)
    6 Redshift data point(s)   
    17 Diameter data point(s)   
    2 Note(s)   
    ESO data    
    RC3 data    

    ESSENTIAL NOTE for NGC 1581 (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 1581 (Back to INDEX)
    Object Names Type Object Names Type
    NGC 1581G LDCE 0328 NED013 G
    ESO 157- G 026 G HDCE 0279 NED010 G
    ESO 042339-5503.3 G SSRS GROUP 13 NED15 G
    WISEA J042444.88-545631.2 IrS PGC1 0014765 NED012 G
    2MASX J04244496-5456312 IrS APMBGC 157+002-001 G
    2MASS J04244493-5456312 IrS APMUKS(BJ) B042338.37-550316.2G
    2MASS J04244530-5456312 IrS MRSS 157-088258 G
    IRAS 04236-5503 IrS PGC 015055 G
    IRAS F04236-5503 IrS [CTS84] 7148 G
    AKARI J0424446-545629 IrS Dorado GROUP:[FS90] 064 G
    SGC 042339-5503.3 G LGG 114:[G93] 004 G
    ESO-LV 1570260 G NGC 1566 GROUP:[KKF2005] 22 RadioS
         

    COORDINATES for NGC 1581 (Back to INDEX)

    Position Reference:20032MASX.C.......:

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)   65.910177  -55.055080  04h23m38.44s  -55d03m18.3s  1.25E+00  1.25E+00    0
    Equatorial (J2000.0)   66.187333  -54.942000  04h24m44.96s  -54d56m31.2s  1.25E+00  1.25E+00    0
    Ecliptic   (B1950.0)   33.301998  -73.755969                              1.25E+00  1.25E+00    0
    Ecliptic   (J2000.0)   34.017901  -73.751807                              1.25E+00  1.25E+00    0
    Galactic              264.087090  -42.731904                              1.25E+00  1.25E+00    0
    SuperGalactic         234.232455  -41.293933                              1.25E+00  1.25E+00    0
    
    Additional detailed measurements with references are also available by clicking below:
    12 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 1581 (Back to INDEX)
     N/A 

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 1581 (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyGRGroup member, radial-velocity confirmed...1993A&AS..100...47G
    Galaxy MorphologyS0^-S0^-...1991RC3.9.C...0000d
    6 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 1581 (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]0.0320.0270.0200.0160.0110.0310.0240.0170.0130.0090.0050.0030.0020.001
    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]0.0400.0320.0240.0200.0140.0380.0280.0200.0150.0110.0070.0040.0030.001


    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 1581 (Back to INDEX)
    Helio. Radial Velocity     :      1600 +/-       27 km/s      
    Redshift                   :  0.005337 +/- 0.000090        1991ApJS...75..935d
    Major Diameter (arcmin)    :   1.8
    Minor Diameter (arcmin)    :   0.7
    Magnitude and Filter       : 13.61
    Classifications            : S0-                 
    
    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:
    6 Redshift data point(s)      48 photometric data point(s)      17 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 1581 (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    1600 +/-     27 km/s      1991ApJS...75..935d
    V (Kinematic LSR)          :    1583 +/-     27 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    1425 +/-     28 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    1386 +/-     30 km/s      1996AJ....111..794K
    V (3K CMB)                 :    1594 +/-     27 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    1378 +/-     30 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    1505 +/-     31 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    1515 +/-     31 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    19.5 +/-    1.4 Mpc      (m-M) = 31.45 +/- 0.15 mag
    D (Local Group)            :    19.0 +/-    1.4 Mpc      (m-M) = 31.39 +/- 0.15 mag
    D (3K CMB)                 :    21.8 +/-    1.6 Mpc      (m-M) = 31.70 +/- 0.15 mag
    D (Virgo Infall only)      :    18.9 +/-    1.4 Mpc      (m-M) = 31.38 +/- 0.15 mag
    D (Virgo + GA only)        :    20.6 +/-    1.5 Mpc      (m-M) = 31.57 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    20.8 +/-    1.5 Mpc      (m-M) = 31.59 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :      95 pc/arcsec =  0.095 kpc/arcsec =   5.68 kpc/arcmin =   0.34 Mpc/degree
    Scale (Local Group)        :      92 pc/arcsec =  0.092 kpc/arcsec =   5.52 kpc/arcmin =   0.33 Mpc/degree
    Scale (3K CMB)             :     106 pc/arcsec =  0.106 kpc/arcsec =   6.35 kpc/arcmin =   0.38 Mpc/degree
    Scale (Virgo Infall only)  :      92 pc/arcsec =  0.092 kpc/arcsec =   5.49 kpc/arcmin =   0.33 Mpc/degree
    Scale (Virgo + GA only)    :     100 pc/arcsec =  0.100 kpc/arcsec =   6.00 kpc/arcmin =   0.36 Mpc/degree
    Scale(Virgo + GA + Shapley):     101 pc/arcsec =  0.101 kpc/arcsec =   6.04 kpc/arcmin =   0.36 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 = 16.566 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 1600 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.005316 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 21.9 Mpc (m-M) = 31.70 mag Angular-Size Distance : 21.7 Mpc (m-M) = 31.68 mag Co-Moving Radial Distance : 21.8 Mpc (m-M) = 31.69 mag Co-Moving Tangential Dist. : 21.8 Mpc (m-M) = 31.69 mag Co-Moving Volume : 4.34e-05 Gpc^3 Light Travel-Time : 0.071 Gyr Age at Redshift 0.005316 : 13.228 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 105 pc/arcsec = 0.105 kpc/arcsec = 6.31 kpc/arcmin = 0.38 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.97902; Magnitude per Unit Area = 0.02302 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 1581 (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 1581 (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]
    ESO-LV "Quick Blue" IIa-O 158.4963.4080 27.0 B-mag arcsec^-2^ 1989ESOLV.C...0000L15.946.38
    K_s (2MASS "total") 118.5049.7780 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:11.925.01
    NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.101 kpc/arcsec.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 17 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 1581 Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 1581SIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 1581VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    ESO/Uppsala Survey -- ESO 157- G 026 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J04244496-5456312 NASA/IPAC Infrared Science Archive (IRSA)
    IRAS Faint Source Catalog -- IRAS F04236-5503 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    The ESO-LV catalog-- ESO-LV 1570260 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Catalogue of Principal Galaxies -- PGC 015055 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 015055 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 1581GALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 1581NASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 04h24m44.9s, -54d56m31s (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)
    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)
    The NRAO Data Archive System

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