iris nebula

[Fieldsy]

Hi all

What filters would u recommend

Asi 178mm I've tried NB and got very little detail per sub so I jumped over to rgb last night and got very little detail again I'm set for another clr patch tonight and not sure on filter set .

I'm shooting 100 sec subs guiding with dec,ra around .80 error each 160 gain .

[geordie85]

The iris nebula is an emission Nebula so LRGB is the way to go

[Adam J]

On 15/05/2020 at 14:47, geordie85 said:

The iris nebula is an emission Nebula so LRGB is the way to go

You mean a reflection nebula.

 

[Adam J]

On 15/05/2020 at 14:39, Fieldsy said:

Hi all

What filters would u recommend

Asi 178mm I've tried NB and got very little detail per sub so I jumped over to rgb last night and got very little detail again I'm set for another clr patch tonight and not sure on filter set .

I'm shooting 100 sec subs guiding with dec,ra around .80 error each 160 gain .

Shoot lots LRGB, as a reflection nebula nothing is going to show up in narrow band at all as its not emmiting at those specific wavelengths, but to be honest even in LRGB not seeing much in indevidual frames does not mean that you wont get something with sufficient intergration. Youu just need lots of frames, the read noise on your camera is low, 2 min subs are the most you will ever need. You need 100's of subs not just a few dozen.

Adam

Edited May 16, 2020 by Adam J

[geordie85]

19 minutes ago, Adam J said:

You mean a reflection nebula.

 

Sorry auto correct