The Center of Our Galaxy

Nrao_nrao_gallery054_1024

nrao_NRAO_Gallery054  

Credit: B. Saxton, NRAO/AUI/NSF from data provided by N.E. Kassim, Naval Research Laboratory

The Very Large Array (VLA) was used to make the largest and most sensitive radio image of the Milky Way Galaxy\'s center. The bright diagonal features trace our Galaxys disk-like shape viewed edge-on. The brightest source is called Sagittarius A. (The Galaxy\'s center lies toward the constellation Sagittarius, or Sgr.) Deep within Sgr A is Sgr A*, a black hole with a mass millions of times that of the Sun. Hot young stars heat the gas around them in bright, round blobs. Massive supernovae explosions leave bubble-shaped remnants. Spiraling or synchrotron radiation seems makes a collection of strange, thread-like structures. Their emission, orientation, and structure provide important clues about the energetics and large-scale magnetic field structure here.

Provider: National Radio Astronomy Observatory

Image Source: https://public.nrao.edu/gallery/the-center-of-our-galaxy-2/

Curator: NRAO/AUI/NSF, Charlottesville, Virginia, USA

Image Use Policy: Creative Commons Attribution 3.0 Unported license (http://creativecommons.org/licenses/by/3.0/)

Image Details Image Details

Image Type
Observation
Object Name
Galactic Center Sagittarius A Sagittarius A*
Subject - Milky Way
Galaxy > Component > Central Black Hole

Distance Details Distance

Universescale1
26,000 light years
Nrao_nrao_gallery054_128
 

Position Details Position Details

Position (ICRS)
RA = 17h 45m 46.0s
DEC = -28° 56’ 46.0”
Orientation
North is up
Field of View
3.3 x 3.7 degrees
Constellation
Sagittarius

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Pseudocolor VLA Radio (P) 900.6 mm
Red Spitzer Optical (R) 500.0 nm
Green Spitzer Optical (V) 500.0 nm
Blue Spitzer Optical (B) 500.0 nm
Spectrum_ir2
Pseudocolor
Red
Green
Blue
Nrao_nrao_gallery054_1280
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ID
NRAO_Gallery054
Subject Category
B.5.4.6  
Subject Name
Galactic Center, Sagittarius A, Sagittarius A*
Credits
B. Saxton, NRAO/AUI/NSF from data provided by N.E. Kassim, Naval Research Laboratory
Release Date
Lightyears
2.6E+04
Redshift
2.6E+04
Reference Url
https://public.nrao.edu/gallery/the-center-of-our-galaxy-2/
Type
Observation
Image Quality
Good
Distance Notes
Facility
VLA, Spitzer, Spitzer, Spitzer
Instrument
Color Assignment
Pseudocolor, Red, Green, Blue
Band
Radio, Optical, Optical, Optical
Bandpass
P, R, V, B
Central Wavelength
9.00562E+08, 500, 500, 500
Start Time
1989-03-18, 2012-04-26T09:39:09-04:00, 2012-04-26T09:36:15-04:00, 2012-04-26T09:36:54-04:00
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
266.44166666667, -28.94611111111
Reference Dimension
1936, 2131
Reference Pixel
1150.758933007633161, 1122.579087021981554
Scale
-0.001714406550702, 0.001714406550702
Rotation
-0.00660658993
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
World Coordinate System resolved using PinpointWCS 0.9.2 revision 218+ by the Chandra X-ray Center
Creator (Curator)
NRAO/AUI/NSF
URL
https://public.nrao.edu
Name
NRAO/AUI/NSF
Email
outreach@nrao.edu
Telephone
Address
520 Edgemont Road
City
Charlottesville
State/Province
Virginia
Publisher
NRAO/AUI/NSF
Publisher ID
nrao
Resource ID
Metadata Date
2018-05-04T14:32:46+00:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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Universescalefull
26,000 light years

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