Jkulin Posted November 14, 2020 Share Posted November 14, 2020 I last attempted this about 3 years ago, but the filters I was using created halos, time to try again.This has taken me 4 attempts in Pixinsight to get to this as with my skies it presented a challenge with the processing.Taken with my GSO/Altair 10" F7.9 Truss, Moravian G2-8300 MkII & FW, iOptron 120EC, Pegasus UPB & Focuser, Chroma 2" Unmounted Filters.A nice way to fully christen the new replacement dome ?More info: - https://www.astrobin.com/vpgt3u/Here's the Bumpf: -The Iris Nebula, also known as NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +7 star, SAO 19158. It shines at magnitude +6.8. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei (Alphirk). It lies 1,300 light-years away and is six light-years across. 4 Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.