Wizard Nebula NGC7380 SHO

[Tommohawk]

I was looking for a new target and chanced upon this whilst scanning Stellarium - main attraction was it was all done prior to crossing meridian just as the sun rose, so I just set it up and let it go. 

My SHO filters aren't quite parfocal - probably due to the CC - but near enough so I focussed on Ha and accepted that the others might be a tad off. TBH my OIII and SII are usually pretty raggy anyhow, so probably wouldnt notice.

One slight frustration - I recently swapped my ZWO RGB filters for Astronomik ones which are thinner. Previously with all ZWO filters I could focus on red and that was good for Ha and SII, and similar for green and OIII. This no longer works so I have to spend longer getting focused with the NB filter rather than using the parfocal BB equivalent. Hey-ho.

Quite please with the result given all done in 5 hours - started about 10.40 and finished 3.40. I was hoping to go again tonight because the forecast was dry - but we've just had some amazing thunderstorms with lashing rain, whilst the forecast shows not a drop!! These met office folks should try looking out of the window occasionally. Anyhow I'm not going to risk it tonight, even though right now it looks clear. I need to put a rain alarm on my Xmas list. Needs more time rally and also some BB for star colours.

Skywatcher 200P + SW 0.9x CC, ASI1600, 100 mins each of HA SII and OIII. gain 300. Guiding was quite good (0.8 arc/sec RMS) but stars as ever a tad eggy. 

Thanks for looking, feel free to comment!

[Tommohawk]

Just as a BTW, here's the summary weather on BBC for my approximate manor, followed by the weather map for 1 am tomorrow, same area. 

Spot the difference??!!

 

 

Edited July 19, 2021 by Tommohawk