The Propeller Nebula is a very faint emission nebula in Cygnus. This is a stacked group of 30 five minute exposures in H-Alpha and 30 five minute exposures in O3 for a total exposure time of five hours. 16 more words
Tags » Cygnus
WASHINGTON — NASA said Thursday that its Kepler spacecraft has spotted “Earth’s bigger, older cousin”: the first nearly Earth-size planet to be found in the habitable zone of a star similar to our own. 400 more words
With the improving weather I was able to finish this off. The benefits of longer exposures are starting to pay off. The image is a stacked composite of 90 five minute narrow band exposures taken through the Astro Physics 130MM Starfire refractor for a total exposure time of 7.5 hours. 8 more words
A black hole that has been quiet since 1989 has been caught burping.
A NASA satellite monitored and controlled by Penn State University detected a black hole erupting high-energy flares called an X-ray nova from a black hole 8,000 light-years away from Earth in a system named V404 Cygni. 342 more words