Nebulae - Barry Wilson
NGC7023 Iris Nebula and LBN468 2 panel maosaic

NGC7023 Iris Nebula and LBN468 2 panel maosaic

The Iris Nebula, also 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 (source Wikipedia).

The 'v' shaped 'bright' nebula on the right of the frame is catalogued as Lynds Bright Nebula 468.

This LRGB images comprises 2 mosaic panels 60 x 300s and 10 x 600s Luminance and 16 x 300s each of Red, Green and Blue, totaling 10.7hrs. Taken with Takahashi FSQ85 EDX at F3.9; 10 Micron GM1000HPS mount; QSI683-wsg8 ccd; Astrodon filters. Julay and August 2016.

IrisFinalGhostLRGB