Ngc 6188

[tornado33]

Hi
Got this emission nebula complex in Ara 2 nights ago. Ive imaged it before but as the night was excellent conditions I did it again, but longer exposures
2 x 22 mins ISO 800
[IMG]http://www.iceinspace.com.au/forum/attachment.php?attachmentid=3453&st c=1
Baader UHCS filter used
Scott

[asimov (John)]

Really nice shot Scott.

[Orion]

I love it !!!!!

[davidpretorius]

beautiful, roughly what mag do you need?

[tornado33]

Thanks
Its pretty faint, though with Orions scope at Kulnura it might be a good target for next viewing night
Scott

[tornado33]

I forgot to mention, the field is about 1.5 degrees across

[Orion]

Originally Posted by tornado33

Thanks
Its pretty faint, though with Orions scope at Kulnura it might be a good target for next viewing night
Scott

Yep no problem it's on my list for next viewing night.

[davidpretorius]

any easy way to work out degree of viewing. ie with 1250 fl and 25mm ep, what is the way to calculate degree of viewing?

[atalas]

What a great shot Scott! love the colour and deatail.

Louie

[RAJAH235]

Really nice detail in that shot. Keep 'em coming. L.

any easy way to work out degree of viewing. ie with 1250 fl and 25mm ep, what is the way to calculate degree of viewing?

Davo, the FOV in degrees can be worked out by dividing the E/Pc apparent fov by the mag. eg; a 25mm E/Pc with a 40??? deg app.fov in your t'scope @ 1250 mm,> 1250 div by 25 = 50 x. The apparent FOV then is 40??? div by 50 = .8 deg. # of Arc minutes > 60 X E/Pc deg, eg; 60 x .8 = 48 A/M. So if you have an object which is 45 x 20 A/M, you can select the correct wide field/low power E/Pc to find/view it ALL & then up your E/P to a higher power to pick out more detail.......... HTH. L.
ps. Don't know what the app fov is for your E/Pcs. Could be 50 degs. Anyone know?? L.

[davidpretorius]

thanks rajah,