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Old 28-01-2020, 04:11 PM
casstony
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PN imaging: sub exposure time for dslr?

I may have a couple of clear nights on the way, but they'll be warm so I thought I might try imaging bright planetaries with the Skywatcher 150ED and Nikon d5600.

To save some experimenting can anyone recommend exposure times for ngc 3918 (blue planetary) and ngc 3242 (ghost of Jupiter).

I might also try ngc 3132 (Southern Ring) and M1.
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Old 28-01-2020, 10:52 PM
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strongmanmike (Michael)
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Might be hard to answer Tony....

I used lots of 10, 20 and 30sec subs for just a total of 30min through 3 filters for NGC 3242 but then 16.5hrs of 10min subs for NGC 3132 (only 3min subs for the RGB)...so not sure there is one answer, I think you can use both normal longish exposures, as well as almost lucky imaging and of course it depends on the brightness of the subject and sinsitivity of your camera too, you might need to experiment

Good luck, be keen to see how you go

Mike
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Old 29-01-2020, 09:27 AM
casstony
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Thanks Mike. It's definitely a night for short exposures as the temp forecasts just got increased - looks clear provided the smoke stays away.
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