April 18th Mosaics

[MapleRidge]

Hello everyone...

I made up 2 mosaics from the images captured on Wednesday. Seeing conditions varied so much between frames I found it hard to get a decent match on most, but I did a 2 frame mosaic of AR1459 and used 3 frames to cover AR1460. AR1459 is the better of the 2 in my opinion...both form a frame match and detail point of view.

The images were taken with the LS80T/SAII/B1800Ha + 5x Powermate Barlwo + Lu-075M camera. The arrangement had a an EFL of 2,800mm and a chip resolution of approx 0.5"/pixel.

Below is AR1459 in both standard and inverted pallet:




and here is AR1460:





Brian

[Montana]

Wow they are very good Brian! I like them a lot

Alexandra

[Cschur]

Brian, very nice shots. I think maybe you should have tried the 2.5x barlow too, I usually find that the 5x is too much for Halpha.

[florencior]

Very good job. Agree with Chris about the 5X, but apparently you have a very good seeing, how many frames are you taking and processing?

[MapleRidge]

My thanks to everyone for their comments.

I agree that the EFL should have been dropped back...I had the 2x teleconverter used on the quadrant images, and wanted to push it a bit more but the 5x is my only other barlow. If I wasn't trying to squeeze as much into my lunch break I would have cannibalized the spacers out of the planetary camera assembly and got 2.5-3x instead.

It didn't helpthat the seeing got worse as time went on.

Brian

[MapleRidge]

Hi florencior...

I don't usually rate my seeing as beign very good

So far, just about all my solar work is generated from 300 frame sequences, and run them through Registax which stack the best 80% (240 frames). On the higher mag images I need to grab more raw frames...they look ok, but on the grainey side when you look close.

Brian

[swisswalter]

Hi Brian

nice shots

[Derek Klepp]

Always good to push the mag a bit to see whats going on.Brian I usually always run 1000frames and fiddle with registax so I stack between 80 to 250 as I dont do much post processing I find this number holds up OK to wavelets.
Derek

[marktownley]

Great outcome Brian!