NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-01-21 T05:33:54 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.    

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   *Sagittarius Dwarf Spheroidal   18h55m19.5s -30d32m43s G         140  0.000467       4.5     ...   303     1    2    2     1    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    
   Cross-IDs    
   Coordinates    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images
   
2 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
303 Reference(s)   
2 Position data point(s)
1 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 Sagitarius Dwarf Elliptical G
SagDEG G SGR dSPH G
SGR I Dwarf 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:
2 Position data point(s)

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

68 Distances found in NED View 68 Individual Distance Measurement(s) for Sagittarius Dwarf Spheroidal

Summary Statistics computed by NED from 68 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
(mag)
Metric Distance
(Mpc)
Mean 17.45 0.060
Std. Dev. 1.40 0.189
Min. 16.38 0.019
Max. 25.36 1.180
Median 17.23 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 km/s       
Redshift                   :  0.000467            1994Nat...370..194I
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:
1 Redshift data point(s)      2 photometric data point(s)      

QUANTITIES DERIVED FROM REDSHIFT(Details)
Calculated and Corrected Velocities
V (Heliocentric)           :     140  km/s                1994Nat...370..194I
V (Kinematic LSR)          :     149  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     :     169 +/-      1 km/s      1991RC3.9.C...0000d
V (Local Group)            :     159 +/-      1 km/s      1996AJ....111..794K
V (3K CMB)                 :      25 +/-      8 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :     186 +/-      2 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :     198 +/-      2 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :     198 +/-      2 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) = 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)

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)]
X-Ray0.1-10 keV (Chandra) 4.6E-15 erg cm^-2^ s^-1^ 2006A&A...459..777R 1.98E+26 [W] 5.15E-01
VisualV 3.6 +/- 0.3 mag 2012AJ....144....4M-13.85 +/- 1.93 [mag] 8.01E+07 +/- 6.51E+07
NOTE: The above quantities are derived using an estimated Distance Modulus of (17.45 +/- 1.40) mag corresponding to
a Metric Distance of (0.060 +/- 0.189) Mpc using the Average NED-D value.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 2 Photometric data point(s) available in NED.

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)
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)
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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