Wednesday, February 28, 2018

NGC 1807 and NGC 1817 - Poor Man's Double Cluster

NGC 1807 and NGC 1817 are open cluster's in the constellation Taurus and located approximately 6400 ly from Earth. They are very close to each other and may actually be parts of a single large cluster.  Because they are so close and less star filled, they are nicknamed the Poor Man's Double Cluster.  I was not planning on imaging this but it was clear out and relatively warm was looking for something other than a nebula to image.  I saw this was in the perfect location.  It also helped that I saw two other recent images of this appear on Astrobin (thanks Ron and Gary).  The only odd thing that happened was after I was done with the light, dark, and bias frames, I took some flats like I normally do know, however, for some reason only jpeg exposures were saved.  I tried to add them into the stacking but DSS wouldn't have it. There are plenty of colorful stars if you look closely, the large star on the bottom is HP 24197.


NGC 1807 and NGC 1817 - Poor Man's Double Cluster
Location: Happy Frog Observatory, Monroe, CT
Date: 02-18-18
Camera: Canon EOS Rebel T3i(a), Backyard EOS
Telescope: Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope
Barlow: None
Focal Length: 600mm
f/7.5
Focal Reducer: Orion 0.8x Focal Reducer for Refractor Telescopes
Mount: Orion Atlas Pro
Filter: Astrodon UV/IR
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: 52 x 60s
ISO: 1600
Temp: 4 C
Post Processing: Deep Sky Stacker, Photoshop, Gradient Exterminator, Astronomy Tools.
https://kurtzeppetello.smugmug.com/

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