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Old 03-09-2019, 08:03 PM
John Hothersall's Avatar
John Hothersall
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Neptune 1/9 and Pluto 24/8

SPX350 F17.5 neptune 610nm F9.0 Pluto Lum.

Neptune was imaged on 1.9.19, seeing was only avg or a bit below - it has been like this for months now in SE Qld.

I kept Neptune very faint at 37fps with full gain 0.1"/pix to capture Triton faintly. Winjupos allows positioning with Triton so it is essential you capture it for further processing. I picked up no detail due to poor seeing using 610nm filter. All I need is good seeing and I may pick up some detail.

On 24th Aug I had a go at Pluto at 1850 to 2120 local time in avg seeing. It moves at 2.6"/hour and moved a total of 6.5" over 2.5 hours, exposure 600ms owing to breeze. I imaged at 0.38"/pix. Was easy to find in planetarium. The stretched image goes down to 20th mag.

Regards, John.
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Old 04-09-2019, 07:16 AM
N1 (Mirko)
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Thanks John for these great views into the deep solar system. Well captured and processed!
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Old 04-09-2019, 08:21 AM
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multiweb (Marc)
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Very interesting stuff John.
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Old 04-09-2019, 11:53 AM
Dennis
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Really nice work John, it looks like we were on Neptune on the same evening.

I found that Neptune/Triton and Nereid showed distinct movement against the background stars in 30 mins as their positions changed quite noticeably at the star/end of my 6x5 min exposure runs.

I could also see the orbital motion of Triton around Neptune in this period.

Cheers

Dennis
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Old 12-09-2019, 02:57 PM
kkara4 (Krishan)
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great work John! you are right, it has been months of junk for SEQ. however last night was really quite good - relatively speaking!.

you've inspired me to go for Neptune again (my last effort was 2017!)
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