Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2024 October 9
A spiral galaxy with blue spiral arms and a bright 
center is shown. The galaxy is surrounded by foreground 
stars and two smaller galaxies. In the galaxy's center
are dark brown dust and red emission filaments.
Please see the explanation for more detailed information.

M106: A Spiral Galaxy with a Strange Center
Image Credit & Copyright: Ali Al Obaidly

Explanation: What's happening at the center of spiral galaxy M106? A swirling disk of stars and gas, M106's appearance is dominated by blue spiral arms and red dust lanes near the nucleus, as shown in the featured image taken from the Kuwaiti desert. The core of M106 glows brightly in radio waves and X-rays where twin jets have been found running the length of the galaxy. An unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies, where vast amounts of glowing gas are thought to be falling into a central massive black hole. M106, also designated NGC 4258, is a relatively close 23.5 million light years away, spans 60 thousand light years across, and can be seen with a small telescope towards the constellation of the Hunting Dogs (Canes Venatici).

Tomorrow's picture: open space


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