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
October 12, 1995
HH-47 Star Jet
HST, WFPC 2, J. Morse
The star masked by a
dust cloud at the left of the above
photo is expelling
an energetic beam of charged particles into interstellar space. This
moving from left to right, has burrowed through much interstellar
material, and now expands out into the interstellar space. Although jet
particles move at nearly three hundred kilometres per second ,
we still do not see any daily
movement because of the enormous distances involved. In fact, the jet is
trillions of kilometres long. This stellar jet occurs in a system called
HH-47 which is located near the edge of the Gum Nebula.
Tomorrow's picture: Jupiter, Io, and Ganymede's Shadow
| About APOD
Authors & editors:
NASA Technical Rep.:
Specific rights apply.
A service of:
Michigan Tech. U.