ρ ophiuchi or bust

[alacant]

Hi everyone

Wanted: blue reflection. Got: rubbish.

This is nearly 2 hours! What do we need to do? All advice most gratefully recieved.

TIA and thanks for looking

450d on pn208

 

[carastro]

What are the capture details?

Length of exposures, camera used and type with/without filters and scope etc etc.

Recently did this target with a camera lens from Spain.

Carole 

Edited June 28, 2019 by carastro

[carastro]

Just stretched your image and it looks like a load of cloud up there.   I agree with you it is weird, because if it is cloud it hasn't affected the stars.

The answer to my last question might help explained things.

Carole

[alacant]

53 minutes ago, carastro said:

exposures

Hi and thanks for the reply.

3min, no filter.

[carastro]

Which camera and scope?

Carole 

[alacant]

34 minutes ago, carastro said:

camera and scope

Details in the OP. Thanks.

[david_taurus83]

You sure your ISO wasn't accidentally set low?

[alacant]

2 minutes ago, david_taurus83 said:

ISO

Hi.

400. Although it doesn't seem to make much difference apart from adding noise at higher values. Maybe it should be higher anyway?

Cheers

[david_taurus83]

Worth a try. Your images of star clusters and galaxies are quite good. Do you often try for nebulosity? Maybe it just needs longer subs?

[alacant]

21 minutes ago, david_taurus83 said:

Do you often try for nebulosity?

Hi

It normally works fine. Right afterwards we did this. In less time. It's just the blue we can't get. Dunno.

Will have a go at ISO800 tonight. Too hot to sleep anyway!

Thanks.

Edited June 28, 2019 by alacant