Very over exposed looking subs and particularly poor final image :(

[900SL]

On 27/02/2024 at 16:29, TiffsAndAstro said:

Ty after 10 to 12 hours this is the first image I'm happy with.

 

You'll be amazed at the improvement after 1 - 2 years

[happy-kat]

Where possible choose a star where the thirds intersect to focus on rather than centre it might help even out focus across the frame.

[TiffsAndAstro]

1 hour ago, 900SL said:

You'll be amazed at the improvement after 1 - 2 years

Sadly I think I'm someone that some how enjoys failing and then, eventually, really enjoys failing slightly less badly.

Plus english weather.

[TiffsAndAstro]

28 minutes ago, happy-kat said:

Where possible choose a star where the thirds intersect to focus on rather than centre it might help even out focus across the frame.

Are they the bird shapes? Ty so much for the diagram but I don't quite follow?

 

Ok I see now, check focus on stars more spread out from center?

Edited February 28 by TiffsAndAstro
Auto correct

[happy-kat]

When you select a star to use for getting focus as good as you can get it, it might help to not use a star that is in the centre of your frame but pick a star where one of the thirds of the frame intersect and look at that as you adjust focus

[TiffsAndAstro]

Will give it a go ty

[happy-kat]

The idea being it spreads the sharpness without comprising the outer thirds by dead centre focusing

[ollypenrice]

With an observatory based telescope, a modern F2 astrograph and a modern, cooled, CMOS astro camera, we spend between 3 and 6 hours capturing a target.  Post-processng takes at least three hours, though a large mosaic may take a week.

If there are any short cuts, I have yet to find them.

Olly

Edited February 29 by ollypenrice
typo

[Elp]

1 hour ago, ollypenrice said:

observatory

Don't forget your very dark skies and apertures you're using too.

[ollypenrice]

44 minutes ago, Elp said:

Don't forget your very dark skies and apertures you're using too.

Yes, so in sites of greater LP you need far longer total exposure. When using F5 and F7 instruments we typically exposed for 15 to 20 hours.

It's a slow business...

Olly

[Elp]

You could look at it this way, in general the targets aren't going anywhere anytime soon.

[TiffsAndAstro]

6 hours ago, Elp said:

You could look at it this way, in general the targets aren't going anywhere anytime soon.

yeah, but they're generally moving there relatively quickly

[900SL]

20 hours ago, Elp said:

You could look at it this way, in general the targets aren't going anywhere anytime soon.

Neither are the clouds... incessant here 😞

[Elp]

7 hours ago, 900SL said:

Neither are the clouds... incessant here 😞

Take some comfort our atmosphere is nothing like Venus.

[Stu Wilson]

had a little go 4 u to see what youd got