NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-02-22 T11:44:25 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 SGR 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   *Sgr A*                         17h45m40.0s -29d00m28s PofG      ...       ...       ...     ...    55     3    8   14     0    0     0 Retrieve Retrieve 1   

Detailed information for each object


Object No. 1 - Sgr A*

INDEX for Sgr A*
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Cross-IDs    
   Coordinates    
   Basic Data   
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images
   
8 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
55 Reference(s)   
14 Position data point(s)
3 Note(s)   

ESSENTIAL NOTE for Sgr A* (Back to INDEX)
Nucleus of the Milky Way.                                                       

CROSS-IDENTIFICATIONS for Sgr A* (Back to INDEX)
Object Names Type Object Names Type
Sgr A** XMMSL1 J174539.6-290019 XrayS
LQAC 266-029 001 VisS 2XMM J174539.9-290028 XrayS
Sgr A PofG AX J1745.6-2900 XrayS
IERS B1742-289 RadioS3FGL J1745.6-2859c GammaS
VERA J1745-2900 RadioSSWIFT J1746.3-2850 XrayS
1LC G359.944-00.047 RadioS1FHL J1745.7-2900 GammaS
CXO J174540.0-290027 XrayS TeV J1745-290 GammaS
IGR J17456-2901 GammaS[ZHB90] G359.944-00.046 RadioS
[SKM2002] 28 XrayS   

COORDINATES for Sgr A* (Back to INDEX)

Position Reference:1999ApJ...518L..33Y

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 265.6221251 -28.9884686 17h42m29.3100s -28d59m18.487s  3.50E-02  2.30E-02    0
Equatorial (J2000.0) 266.4168262 -29.0077969 17h45m40.0383s -29d00m28.069s  3.50E-02  2.30E-02    0
Ecliptic   (B1950.0) 266.1530792  -5.6011372                              3.50E-02  2.30E-02  179
Ecliptic   (J2000.0) 266.8517213  -5.6076563                              3.50E-02  2.30E-02  179
Galactic             359.9442152  -0.0460789                              3.50E-02  2.30E-02   59
SuperGalactic        185.8364451  42.2482539                              3.50E-02  2.30E-02  157
Additional detailed measurements with references are also available by clicking below:
14 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for Sgr A* (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for Sgr A* (Back to INDEX)
 N/A 

FOREGROUND GALACTIC EXTINCTION for Sgr 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.
WARNING: This position with |Galactic latitude| < 5 deg has unreliable extinction estimates.
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]422.123353.165267.065211.256146.584412.870321.706222.554165.382123.01469.05543.73229.41414.902
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values: WARNING: This position with |Galactic latitude| < 5 deg has unreliable extinction estimates.
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]505.569401.460308.422248.691180.494479.612352.894255.948194.078137.60383.92053.59034.14514.235

See Notes on Galactic Extinction for important caveats.

BASIC DATA for Sgr A* (Back to INDEX)

Morphology                 : MBH                 
Magnitude                  :      
Major diameter in arcmin   :      
Minor diameter in arcmin   :      

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:
8 photometric data point(s)      

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

EXTERNAL ARCHIVES AND SERVICES for Sgr A* Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- Sgr A*SIMBAD (CDS, Strasbourg, France)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- Sgr A*GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- Sgr A*NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 17h45m40.0s, -29d00m28s (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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