Type of object: Center of Milky Way
Constellation: Sagittarius
Position: Right Ascension 18h36m;
    Declination ­30d
Distance: 23,000 light years
Optical field size: Roughly 30 x 50
    degrees
Infrared field size: 15 x 15 degrees
Wavelength of radio observation:
    20 centimeters
Frequency of radio observation: 1.44
    gigahertz
Resolution (smallest visible object)
    of radio image: 5 x 8 arc seconds
Main radio field of view: 25 x 25 arc
    minutes
X-ray field of view: 30 x 30 arc
    minutes