NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2022-01-24 T17:23:32 PST
Help | Comment | NED Home

You have selected the following parameters to search on:

Velocity(km/s): Unconstrained
Include ANY Object Type:
Exclude ANY Object Type:

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. 3

INDEX for NGC 2550A
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
    50 Reference(s)   
    16 Position data point(s)
    7 Redshift data point(s)   
    6 Diameter data point(s)   
    3 Note(s)   
    UGC data    
    RC3 data    

    ESSENTIAL NOTE for NGC 2550A (Back to INDEX)
    N/A

    CROSS-IDENTIFICATIONS for NGC 2550A (Back to INDEX)
    Object Names Type Object Names Type
    NGC 2550AG IRAS 08230+7354 IrS
    UGC 04397 G IRAS F08230+7354 IrS
    KUG 0823+739 G LDCE 0573 NED012 G
    CGCG 331-043 G PGC 023781 G
    CGCG 0823.0+7355 G UZC J082839.5+734454 G
    MCG +12-08-043 G NVSS J082838+734452 RadioS
    WISEA J082839.96+734453.4 IrS HIJASS J0828+73 RadioS
    2MASX J08283996+7344526 IrS XMMSL1 J082838.6+734452 XrayS
    2MASXi J0828399+734452 IrS LGG 154:[G93] 005 G
    2MASS J08283991+7344531 IrS    
         

    COORDINATES for NGC 2550A (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)  125.753759   73.913417  08h23m00.90s  +73d54m48.3s  1.25E+00  1.25E+00    0
    Equatorial (J2000.0)  127.166417   73.748000  08h28m39.94s  +73d44m52.8s  1.25E+00  1.25E+00    0
    Ecliptic   (B1950.0)  105.379705   52.376848                              1.25E+00  1.25E+00    0
    Ecliptic   (J2000.0)  106.081085   52.382954                              1.25E+00  1.25E+00    0
    Galactic              140.575897   32.703320                              1.25E+00  1.25E+00    0
    SuperGalactic          32.835547    0.727823                              1.25E+00  1.25E+00    0
    
    Additional detailed measurements with references are also available by clicking below:
    16 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for NGC 2550A (Back to INDEX)
     N/A 

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 2550A (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    HierarchyGRGroup member, radial-velocity confirmed...1993A&AS..100...47G
    KinematicsHI line widthHI line width...2005ApJS..160..149S
    Luminosity Class5.0LC III...1991RC3.9.C...0000d
    Galaxy MorphologyScSc...1991RC3.9.C...0000d
    9 Detailed Classification(s)


    FOREGROUND GALACTIC EXTINCTION for NGC 2550A (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]0.1090.0910.0690.0550.0380.1070.0830.0580.0430.0320.0180.0110.0080.004
    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]0.1390.1100.0850.0680.0500.1320.0970.0700.0530.0380.0230.0150.0090.004


    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.050 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for NGC 2550A (Back to INDEX)
    Helio. Radial Velocity     :      3635 +/-       10 km/s      
    Redshift                   :  0.012125 +/- 0.000033        2005ApJS..160..149S
    Major Diameter (arcmin)    :   1.6
    Minor Diameter (arcmin)    :   1.4
    Magnitude and Filter       : 13.44
    Classifications            : Sc                  
    
    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:
    7 Redshift data point(s)      48 photometric data point(s)      6 Diameter data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for NGC 2550A (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :    3635 +/-     10 km/s      2005ApJS..160..149S
    V (Kinematic LSR)          :    3641 +/-     10 km/s      1986MNRAS.221.1023K
    V (Galactocentric GSR)     :    3757 +/-     11 km/s      1991RC3.9.C...0000d
    V (Local Group)            :    3802 +/-     14 km/s      1996AJ....111..794K
    V (3K CMB)                 :    3670 +/-     10 km/s      1996ApJ...473..576F
    V (Virgo Infall only)      :    3922 +/-     16 km/s      2000ApJ...529..786M
    V (Virgo + GA only)        :    3884 +/-     17 km/s      2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :    3893 +/-     17 km/s      2000ApJ...529..786M
    
    Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
    D (Galactocentric GSR)     :    51.5 +/-    3.6 Mpc      (m-M) = 33.56 +/- 0.15 mag
    D (Local Group)            :    52.1 +/-    3.7 Mpc      (m-M) = 33.58 +/- 0.15 mag
    D (3K CMB)                 :    50.3 +/-    3.5 Mpc      (m-M) = 33.51 +/- 0.15 mag
    D (Virgo Infall only)      :    53.7 +/-    3.8 Mpc      (m-M) = 33.65 +/- 0.15 mag
    D (Virgo + GA only)        :    53.2 +/-    3.7 Mpc      (m-M) = 33.63 +/- 0.15 mag
    D (Virgo + GA + Shapley)   :    53.3 +/-    3.7 Mpc      (m-M) = 33.63 +/- 0.15 mag
    
    Scale at Hubble Flow Distances
    Scale (Galactocentric GSR) :     250 pc/arcsec =  0.250 kpc/arcsec =  14.97 kpc/arcmin =   0.90 Mpc/degree
    Scale (Local Group)        :     253 pc/arcsec =  0.253 kpc/arcsec =  15.15 kpc/arcmin =   0.91 Mpc/degree
    Scale (3K CMB)             :     244 pc/arcsec =  0.244 kpc/arcsec =  14.62 kpc/arcmin =   0.88 Mpc/degree
    Scale (Virgo Infall only)  :     260 pc/arcsec =  0.260 kpc/arcsec =  15.63 kpc/arcmin =   0.94 Mpc/degree
    Scale (Virgo + GA only)    :     258 pc/arcsec =  0.258 kpc/arcsec =  15.48 kpc/arcmin =   0.93 Mpc/degree
    Scale(Virgo + GA + Shapley):     259 pc/arcsec =  0.259 kpc/arcsec =  15.51 kpc/arcmin =   0.93 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 = 6.446 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 3635 km/sec
    Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.012241 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 50.8 Mpc (m-M) = 33.53 mag Angular-Size Distance : 49.5 Mpc (m-M) = 33.47 mag Co-Moving Radial Distance : 50.1 Mpc (m-M) = 33.50 mag Co-Moving Tangential Dist. : 50.1 Mpc (m-M) = 33.50 mag Co-Moving Volume : 0.000528 Gpc^3 Light Travel-Time : 0.163 Gyr Age at Redshift 0.012241 : 13.136 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 240 pc/arcsec = 0.240 kpc/arcsec = 14.41 kpc/arcmin = 0.86 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.95250; Magnitude per Unit Area = 0.05284 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 2550A (Back to INDEX)
     N/A 

    QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 2550A (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 102.0083.640 About 25.0 B-mag arcsec^-2^ 1973UGC...C...0000N26.3721.63
    K_s (2MASS "total") 123.80106.47170 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:32.0127.53
    NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 0.259 kpc/arcsec.
    The quantities quoted above have not necessarily been corrected for foreground extinction.

    View details for 6 Diameter data point(s) available in NED.

    EXTERNAL ARCHIVES AND SERVICES for NGC 2550A Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- NGC 2550ASIMBAD (CDS, Strasbourg, France)
    Revised New General Catalogue -- NGC 2550AVizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Uppsala General Catalog -- UGC 04397 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Original Zwicky Catalog -- CGCG 331-043 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 +12-08-043 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    2MASS Extended Source Images (JHKs) -- 2MASX J08283996+7344526 NASA/IPAC Infrared Science Archive (IRSA)
    2MASS Extended Source Images (JHKs) -- 2MASXi J0828399+734452 NASA/IPAC Infrared Science Archive (IRSA)
    IRAS Faint Source Catalog -- IRAS F08230+7354 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Catalogue of Principal Galaxies -- PGC 023781 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
    Retrieve mean data from LEDA -- PGC 023781 The Lyon/Meudon Extragalactic Database (LEDA)
    NRAO/VLA Sky Survey (NVSS)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 2550AGALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 2550ANASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 08h28m39.9s, +73d44m53s (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)
     Size:    Contours (PS)  JPEG  FITS File 
    NRAO/VLA Sky Survey (NVSS)
    The NRAO Data Archive System





    Back to NED Home