Date and Time of the Query: 2022-01-18 T12:40:54 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 Sagittarius Dwarf Spheroidal

1 objects found in NED.    


 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   *Sagittarius Dwarf Spheroidal   18h55m19.5s -30d32m43s G         140  0.000467 SPEC  4.5     ...   396     1    2    9     5    0     0 Retrieve Retrieve 1   

Detailed information for each object

Object No. 1 - Sagittarius Dwarf Spheroidal

INDEX for Sagittarius Dwarf Spheroidal
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
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):
  • Images
  • 2 Photometric data point(s) and SED   
  • Spectra   
    Redshift-Independent Distances
    396 Reference(s)   
    9 Position data point(s)
    5 Redshift data point(s)   
    1 Note(s)   

    ESSENTIAL NOTE for Sagittarius Dwarf Spheroidal (Back to INDEX)
    Likely associated with M54; not the same as Sagittarius Dwarf Irregular Galaxy. 

    CROSS-IDENTIFICATIONS for Sagittarius Dwarf Spheroidal (Back to INDEX)
    Object Names Type Object Names Type
    Sagittarius Dwarf SpheroidalG SGR I Dwarf G
    SagDEG G PGC1 5064336 NED003 G
    Sagitarius Dwarf Elliptical G [DF2016] 1569 G
    SGR dSPH G    

    COORDINATES for Sagittarius Dwarf Spheroidal (Back to INDEX)

    Position Reference:2003ApJ...599.1082M

    Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                           (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
    Equatorial (B1950.0)    283.0305    -30.6100     18h52m07s     -30d36.6m  1.00E+02  1.00E+02    0
    Equatorial (J2000.0)    283.8313    -30.5453     18h55m19s     -30d32.7m  1.00E+02  1.00E+02    0
    Ecliptic   (B1950.0)    281.2917     -7.6737                              1.00E+02  1.00E+02    0
    Ecliptic   (J2000.0)    281.9906     -7.6799                              1.00E+02  1.00E+02    0
    Galactic                  5.5689    -14.1663                              1.00E+02  1.00E+02    0
    SuperGalactic           206.5422     43.7457                              1.00E+02  1.00E+02    0
    Additional detailed measurements with references are also available by clicking below:
    9 Position data point(s)

    REDSHIFT-INDEPENDENT DISTANCES for Sagittarius Dwarf Spheroidal (Back to INDEX)

    66 Distances found in NED View 66 Individual Distance Measurement(s) for Sagittarius Dwarf Spheroidal

    Summary Statistics computed by NED from 66 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.

    Sagittarius Dwarf Spheroidal Distance Modulus
    Metric Distance
    Mean 17.21 0.028
    Std. Dev. 0.30 0.004
    Min. 16.38 0.019
    Max. 18.40 0.045
    Median 17.22 0.028

    CLASSIFICATIONS (TYPES, ATTRIBUTES) for Sagittarius Dwarf Spheroidal (Back to INDEX)
    TypeAs PublishedNED HomogenizedFlagReference Code
    Distance IndicatorTRGBTRGB...2004MNRAS.353..874M
    49 Detailed Classification(s)

    FOREGROUND GALACTIC EXTINCTION for Sagittarius Dwarf Spheroidal (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]0.6650.5560.4210.3330.2310.6500.5070.3500.2600.1940.1090.0690.0460.023
    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]0.8320.6610.5080.4090.2970.7890.5810.4210.3190.2260.1380.0880.0560.023

    Galactic Extinction based on H I Column Densities and Galaxy Counts
    (Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
    AB = 0.560 mag
    See Notes on Galactic Extinction for important caveats.

    BASIC DATA for Sagittarius Dwarf Spheroidal (Back to INDEX)
    Helio. Radial Velocity     :       140 +/-        2 km/s SPEC 
    Redshift                   :  0.000467 +/- 0.000007  SPEC  2017A&A...603A..65T
    Major Diameter (arcmin)    : 450.0
    Minor Diameter (arcmin)    : 216.0
    Magnitude and Filter       :  4.5 
    Classifications            : dSph(t)             
    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:
    5 Redshift data point(s)      2 photometric data point(s)      

    QUANTITIES DERIVED FROM REDSHIFT for Sagittarius Dwarf Spheroidal (Details)(Back to INDEX)
    Calculated and Corrected Velocities
    V (Heliocentric)           :     140 +/-      2 km/s SPEC 2017A&A...603A..65T
    V (Kinematic LSR)          :     149 +/-      2 km/s SPEC 1986MNRAS.221.1023K
    V (Galactocentric GSR)     :     169 +/-      2 km/s SPEC 1991RC3.9.C...0000d
    V (Local Group)            :     159 +/-      2 km/s SPEC 1996AJ....111..794K
    V (3K CMB)                 :      25 +/-      8 km/s SPEC 1996ApJ...473..576F
    V (Virgo Infall only)      :     186 +/-      3 km/s SPEC 2000ApJ...529..786M
    V (Virgo + GA only)        :     198 +/-      3 km/s SPEC 2000ApJ...529..786M
    V (Virgo + GA + Shapley)   :     198 +/-      3 km/s SPEC 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) = 140 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 Sagittarius Dwarf Spheroidal (Back to INDEX)

    EXTERNAL ARCHIVES AND SERVICES for Sagittarius Dwarf Spheroidal Help (Back to INDEX)
    Resources for Object NamesSite/Service
    Query SIMBAD by primary NED object name -- Sagittarius Dwarf SpheroidalSIMBAD (CDS, Strasbourg, France)
    Retrieve mean data from LEDA -- PGC 4689212 The Lyon/Meudon Extragalactic Database (LEDA)
    Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- Sagittarius Dwarf SpheroidalGALEX Mission Data Archive at MAST
    Explore IRSA resources with RADAR (10 arcsec search radius) -- Sagittarius Dwarf SpheroidalNASA/IPAC Infrared Science Archive (IRSA)
    Resources for position 18h55m19.5s, -30d32m43s (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

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