<P> The Galactic Center is the rotational center of the Milky Way . The estimates for its location range from 24--28.4 kilolight - years (7.4--8.7 kiloparsecs) from Earth in the direction of the constellations Sagittarius, Ophiuchus, and Scorpius where the Milky Way appears brightest . It coincides with the compact radio source Sagittarius A * . </P> <P> There are around 10 million stars within one parsec of the Galactic Center, dominated by red giants . There is also a significant population of massive supergiants and Wolf - Rayet stars from a star formation event around one million years ago . There is a supermassive black hole at the centre, which powers the Sagittarius A * radio source </P> <P> Because of interstellar dust along the line of sight, the Galactic Center cannot be studied at visible, ultraviolet or soft (low - energy) X-ray wavelengths . The available information about the Galactic Center comes from observations at gamma ray, hard (high - energy) X-ray, infrared, sub-millimetre and radio wavelengths . </P>

What is proposed to be at the center of our galaxy