Tuesday, November 10, 2015
More filaments of Cygnus and couple of planetary nebulae
I just got this photo processed. It's showing an area near the Propeller Nebula, I noticed this dim planetary nebula candidate, PN PM 1-320, back in 2011 while I was shooting the Propeller Nebula with my 300mm Tokina lens. At the same image field there is another planetary nebula too, PK 84+9.1
Filaments of Cygnus with couple of planetary nebulae
Click for a large image
Image in mapped colors from the light emitted by ionized elements. Red=Sulfur,
Green=Hydrogen and Blue=Oxygen. A large blueish spot at middle left is a PN PM 1-320.
A small pale red dot at upper right is a planetary nebula PK 84+9.1
Green=Hydrogen and Blue=Oxygen. A large blueish spot at middle left is a PN PM 1-320.
A small pale red dot at upper right is a planetary nebula PK 84+9.1
Click for a large image
Closeup of the PN PM 1-320
Closeup of the PK 84+9.1
Wide field image of the area
A pale bluish area at upper right is the PK 84+9.1 This image was taken at Autumn 2011, original blog post can be seen here: http://astroanarchy.blogspot.fi/2011/10/first-light-for-autumn-season-2011.html
Technical details
Processing work flow
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 21 iterations, added at 25% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics
Celestron Edge HD 1100 @ f7 with 0,7 focal reducer for Edge HD 1100 telescope
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II
Exposure times
H-alpha, 9x 1200s = 3h
O-III, 6 x 1200s binned = 2h
S-II, from an older wide field photo = 1h
Total 6h
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment