The Elephant's Trunk nebula (bottom middle of the image) is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth.
The Elephant's Trunk nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr) stars.
M: Avalon linear fast reverse
T: Takahashi FSQ85 0.73x
C: QSI690-wsg with 3nm Ha filter
As a 2x2 pane mosaic, this has a total integration time of 30 hours and 30 minutes