09/21/2024
My first attempt to capture Deep sky object. The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). It is named because its shape resembles North America.
It is located roughly 2202 light years away and is roughly 90 light years across.
Being an emission nebula, means it contains ionised gas which emits light. The reddish colour that predominates is from ionised hydrogen emitting light in a deep-red optical wavelength called hydrogen-alpha.
Data was collected over 3 nights.
Canon T3i full spectrum mod
William Optics ZenithStar 61mm APO
Optolong L-eXtreme filter
Asiair plus
140 x 180” iso 800
70 dark frames
No flats
No bias
Stacked and post processed in Siril and photoshop CC