Philipp
Salzgeber
Wolfurt / Austria
|
M57 - the ring
nebula
|
Telescope:
|
Vixen R130S, 5.1" Newton Telescope
on Super Polaris GEM, 20mm eyepiece, 2x Barlow |
|
Camera
|
Nikon Coolpix 4500 digital camera, f:17.8mm |
|
Exposure:
|
8 x ~20sec, Noise reduction |
|
Date:
|
2002-09-06 |
|
Processing:
|
Stacking |
|
Comments:
|
With the cable release the tracking is
much better.
I used a Barlow lens and zoomed to 17.8 mm to enlarge the
ring nebula.
On the top border you can see a soft glow which is a result
of the CCD chip. It is much reduced by the Noise reduction,
but still visible... |
|
Telescope:
|
Vixen R130S,
5.1" Newton Telescope on Super Polaris GEM, 20mm eyepiece |
|
Camera
|
Nikon Coolpix
4500 digital camera |
|
Exposure:
|
2 x 27sec,
Noise reduction |
|
Date:
|
2002-08-18 |
|
Processing:
|
Averaging
of the two exposures, Levels |
|
Comments:
|
I hope to
improve on the guiding accuracy, the first step is a cable
release to literally get my hand off the scope during the
exposure... |
|
Astrophotography by Philipp Salzgeber