Polar-ring galaxy
Videos
A polar-ring galaxy is a type of galaxy with an outer ring of gas and stars that rotates over the poles of the galaxy. These polar rings are thought to form when two galaxies gravitationally interact
NGC 660 showing polar-galaxy structure
NGC660 polar galaxy. 24-inch telescope on Mt. Lemmon, AZ.
NGC 2685, HST
NGC 3718 HST
Ring galaxy
Videos
A ring galaxy is a type of galaxy that includes a large annular structure. The galactic center may be relatively separate from the ring structure, or present a continuous disc shape. Hoag's Object, di
Polar-ring galaxy
…List of polar-ring galaxies Ring galaxy – Galaxy with an annular appearance Astronomy Picture of the Day Polar Ring Galaxy NGC 4650A - May 10, 1999 Polar Ring Galaxy NGC 2685 - 2007 February…
Hoag's Object, a ring galaxy. Another red ring galaxy can be seen behind it.
Vela ring galaxy, and a bright star known as HD 88170.
Ring Galaxy - II Zwicky 28
Image of AM 0644-741 by the Hubble Space Telescope (HST)