Stupid Question : Can you NarrowBand in daylight?

[Catanonia]

Ok said it was a stupid question.

But with a Ha 7nm filter do you have to wait for it to go dark to get images ?

[SteveP]

I'll admit that I've also had a similar stupid thought!

I'm guessing that the answer is 'No'. My own reasoning is that our own sun will emit so much light itself in the 'narrowband' ranges that it will swamp anything else from the nebulae etc just as it does across the rest of the spectrum.

Steve

[Psychobilly]

Nick Howes answered this in anotheter thread

Quote:

Originally Posted by Psychobilly

Interesting results again Nick... I suppose Narrowband helps quite a bit on these short nights...

Peter...

Massively so...H-A starts at around 11:30 and then OIII and SII till dawn

Peter...

[shaunster]

Might be ok in blue twilight sky, but in daylight? i doubt you would get anything

[PeterW]

AS long as you have a very strongly blue sky so that the scattered light is heavily blue, look 90degrees away from the sun and use a polariser to keep the sky brightness down, I would like to see what is possible. Avoid the milky white days when the crud in the atmosphere will scatter all the sun's different colours of light more and so swamp you more.

PEterW