Celestial hemisphere:  Northern  ·  Constellation: Lyra (Lyr)  ·  Contains:  IC 1296  ·  M 57  ·  NGC 6720  ·  Ring Nebula
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M57, The Ring Nebula, UHC-S, no reducer, David Dearden
M57, The Ring Nebula, UHC-S, no reducer
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M57, The Ring Nebula, UHC-S, no reducer

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Description

I'm having a devil of a time with the Ring. If you really stretch it, there are hints of the outer ring visible. I should have taken more, longer exposures. There is starting to be a lot of moon now. I'll have to try again under darker skies.

Date: 29 Jun 2012

Subject: M57, Ring Nebula

Scope: AT8IN

Filter: Baader UHC-S

Mount: CG-5 (Synta motors)

Guiding: Orion ST80 + 0.5x Antares telereducer + DSI IIc + PHD

Camera: DSI Ic

Acquisition: Nebulosity 3.0.6

Exposure: 43 x 120 s

Stacking: Neb 3, bias included, auto quality screen normalize first, trans+rot align, 1.5 SD stack

Processing: auto color balance, saturation boost, CS5 curves and levels, high pass filter/layer mask sharpening, Astronomy Tools deep space noise reduction, star color enhance

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M57, The Ring Nebula, UHC-S, no reducer, David Dearden