21 hours ago
📷 by @s.aspinall __ Repost from @newmilkyway Facebook group. Join and post in our group to get a feature! Link in bio. __ Featured by admin: @nowjourneys 🚀 __ Tracked/Stacked IG:www.instagram.com/s.aspinall 46P/Wirtanen and Pleiades/Messier 45 together in the sky. Upon hearing news of Wirtanen I loaded Wirtanen into Stellarium and took a look at where it would be in relation to some of my favourite deep sky objects. I noted that this shot would be possible the night of December 13th, 2018. I went out to some dark skies in south central Saskatchewan and waited for the moon to set and then started my exposures. This is about was about an hour of shooting using my Nikon D800e and 85mm lens (22 2.5 minute exposures). The dark skies, combined with the fact that this region is almost overhead at this time of year at 50 degrees N latitude, helped reveal some of the dust in that appears in this region as well. Stacked and processed in Photoshop. Shot on a Sky Watcher Star Adventurer Tracker with a Nikon D800e and an 85mm 1.8. Cropped from about 7,300 pixels to about 5,500. 22 exposures stacked: 2.5 minutes, f3.3, ISO1600. I blended one of those exposures back in in order to make Wirtanen's center sharp again. In an hour it does move more than expected.