7.7 hours of total exposure on dark nebule B169 and B174. http://www.astropix.com/B169_B174.html
http://www.astropix.com/B150.html Barnard 150 is an interesting dark nebula located in the constellation of Cepheus. Click on the image or link to see a larger version with more information. This is more than 7 hours of exposure taken with my AP 130EDFGT at f/4.7 and an unmodified Nikon D5300 and a modified Canon 600D.
My eclipse pix… finally got most of them all together… http://www.astropix.com/eclipse/2017_Total_Solar_Eclipse_Index.html Click on the link to see the thumbnail page with links to high resolution images with technical information about the pictures and how they were taken.
Here’s a shot of the “Newest” Moon with Earthshine during totality. http://www.astropix.com/eclipse/2017_Total_Solar_Eclipse_Earthshine.html Click on the link to see a larger version with more information. There’s also some stars recorded in the field, the faintest of which is magnitude 8.7. This is a single 1 second exposure at f/6.5 at ISO 200 at 420mm of focal length. Jerry
Here's my wide-angle multiple-exposure composite WAMEC from the total solar eclipse! http://www.astropix.com/2017_Total_Solar_Eclipse_WAMEC.html Click on the link above for more info about how the image was taken! The exclamation point is the new period! Jerry!
This high-dynamic-range image of the solar corona that includes about 16 seconds of total exposure took 18 hours to process manually. http://www.astropix.com/2017_Total_Solar_Eclipse_Corona.html Click on the image or link to see a larger version with more information. It is a composite of 14 exposures from 1/4000th second down to 2 seconds at one-stop intervals. It was put together with special sharpening techniques to reveal detail in the corona.
And now for a blast from the past. Today is the 20th anniversary of Comet Hale-Bopp’s (C/1995 O1) perihelion, or closest approach to the Sun. I’ve put together a layout of pictures with a couple of my best photos from that apparition. http://www.astropix..../Hale-Bopp.html I don’t know if you remember that comet, but it was really something! These were shot on film. I don’t know if you remember that either... :-)
A comet, a planetary nebula and a galaxy walk into a bar... http://www.astropix.com/Comet_41P.html Here's a shot of Comet 41P/Tuttle–Giacobini–Kresák passing near planetary nebula M97 and galaxy M108 in Ursa Major on March 22. This is a composite of 52 x 120-second exposures.