Hubble image archive

"X" Structure at Core of Whirlpool Galaxy (M51)

This image of the core of the nearby spiral galaxy M51, taken with the Wide Field Planetary camera (in PC mode) on NASA's Hubble Space Telescope, shows a striking , dark "X" silhouetted across the galaxy's nucleus. The "X" is due to absorption by dust and marks the exact position...

Date
Jan 1, 1992
Mission
Hubble Space Telescope
Archive ID
hubblesite-images-1992-17-68-image
By

This image of the core of the nearby spiral galaxy M51, taken with the Wide Field Planetary camera (in PC mode) on NASA's Hubble Space Telescope, shows a striking , dark "X" silhouetted across the galaxy's nucleus. The "X" is due to absorption by dust and marks the exact position of a black hole which may have a mass equivalent to one-million stars like the sun. The darkest bar may be an edge-on dust ring which is 100 light-years in diameter. The edge-on torus not only hides the black hole and accretion disk from being viewed directly from earth, but also determines the axis of a jet of high-speed plasma and confines radiation from the accretion disk to a pair of oppositely directed cones of light, which ionize gas caught in their beam. The second bar of the "X" could be a second disk seen edge on, or possibly rotating gas and dust in MS1 intersecting with the jets and ionization cones. The size of the image is 1100 light-years.

Credits

Credit: H. Ford (JHU/STScI), the Faint Object Spectrograph IDT, and NASA

Image Details

About The Object
Object NameM51, Whirlpool Galaxy
R.A. Position13h 29m 52.36s
Dec. Position47° 11' 40.8"

Google Preferred Sources

See more from Space Telescope in Google

Choose Space Telescope as a preferred source to make our mission news, visual reporting, and independent explainers easier to find in Google Search.