Hemisphere:  Southern  ·  Contains:  7.71  ·  Neptune
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Neptun & Triton, 



    
        

            Wanni
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Neptun & Triton

Imaging telescopes or lenses: Meade LX200 8" GPS

Imaging cameras: Atik Cameras Atik 383 L+ Color

Mounts: Meade Equatorial Wedge on Tripod

Guiding telescopes or lenses: Meade ETX70-AT

Guiding cameras: Meade DSI Pro 2

Software: Fitswork4  ·  Meade AutoStar Suite / Envisage  ·  Artemis capture

Accessory: Meade #1209 Zero Image Shift Microfocuser


Dates:Oct. 10, 2015

Frames:
20x30" -20C bin 1x1
2x300" -20C bin 1x1
8x60" -20C bin 1x1

Integration: 0.5 hours

Darks: ~20

Bias: ~20

Avg. Moon age: 27.30 days

Avg. Moon phase: 5.53%

Temperature: 5.00


Astrometry.net job: 807737

RA center: 22h 36' 54"

DEC center: -9° 33' 35"

Pixel scale: 0.529 arcsec/pixel

Orientation: 2.546 degrees

Field radius: 0.308 degrees


Resolution: 2529x3354

Locations: Home Observatory, Syke, Niedersachsen, Germany

Description

Another Neptun capture, this time using my LX200 8" (f/10).
Moon Triton almost attached. (left)

With guiding and much longer exposure, I got similar results compared to my previous
Neptun images using the 12" Dobson (f/4.9). see here (http://www.astrobin.com/209917/)

On the Dobson I had to discard some 50 % of the captured images because of tracking or seeing defects. On LX 200 with guiding, the ratio is 90% good and the 10% discard is more about seeing conditions.

Both telescopes have benefits and drawbacks, however in winter times (*) I prefer the
the LX 200.
It is more convinient to operate and mounted at equatorial orientation, so I can do very long
exposure without field rotation .

(* Even more, because I can keep my windshields installed on the observation dome.)

Comments

Author

wanni60
Wanni
License: None (All rights reserved)
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Neptun & Triton, 



    
        

            Wanni