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Old 10-02-2008, 01:38 AM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
A rediculously faint planetary nebula

This one is so difficult not only because its faint, but big, making its surface brightness impossibly faint indeed.
Its called We De 1 and sits almost due north of Betelgeuse.

This was taken with the 300mm f2.8 flourite lens from Bert. but I only got 4x5 mins in before cloud ended proceedings for the night. Its a crop from a bigger image, I didnt have it quite centred, its far too faint to be seen on the subexposures, even after processing its barely visible, just to right of centre of image. I did this one just after the Seagull nebula.
Open cluster NGC 2141 is at top, middle also. Id like to try and get an hour at least on We De 1 but Orion is slipping westward and clear weather windows are so rare nowdays. Its goot to catch photons after so much bad weather.
Scott

EDIT: Well this is amazing, on going over Star Atlas pro Ive found Ive caught another Planetary Nebula in the We De 1 pic. Its buried in the glow of the bright star near top. Its called A 12 (must be an Abell object) Here is a full res crop with much lower level stretching. Though the star is flared from the filter combination the PN is clearly visible as a pinkish glow just next to the star in the 4 oclock position. This object is begging for the 10 inch scope to image it.
Attached Thumbnails
Click for full-size image (We De 1 4x5minsiso400uhcs300mmf2.8.jpg)
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Click for full-size image (We De 1 4x5minsiso400uhcs300mmf2.8 A12.jpg)
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Last edited by tornado33; 10-02-2008 at 02:01 AM.
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