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Showing results for tags 'h-alpha'.
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Second image in a weekend! This set of data was taken on 10th/11th Sept 2017 from W Oxfordshire (with the moon at 75% waning), and shows Simeis 57, otherwise known as the Propeller Nebula, in Cygnus. DWB111 is the lower (southern) prop, with the northern half catalogued as DWB119 - there are other DWB catalogue numbers for the surrounding faint stuff. There's not a lot about this object that I can find - the distance isn't even determined (but it's likely to be not too far away in galactic terms). See: https://www.aanda.org/articles/aa/pdf/2003/06/aa3181.pdf Equipment was: FLT110 @f5.6, ST2000XM with Astrodon 5nm filter, Losmandy Titan. Guided with an ASI120MM on OAG using PHD2. Image capture with APT, and processing in PI. It almost certainly needs a lot more data (can you ever have enough?! ) - this is 10x20min (3h20m total) before it clouded out - the faint stuff is a bit marginal, and with more data I think there's a lot of detail in that gas that can be pulled out. Thanks for looking! EDIT: Boosted contrast a bit...
I took my first Ha image last night and tried to combine it with data of the same object taken previously. First, the Ha image (consisting of only 3x5min subs) just looks like a luminance ....but not as good Second, when i combined it with the old data in PI....I really did laugh out loud (or hahaha as noted in the title). Can anyone suggest a tutorial on LRGB/narrow band imaging either here or on the web - I can find them but if someone knows of a good one (and that's what this forum is for right?) then I'd really appreciate it. Thanks David
Some ha (falso colour & monchrome) and white light of the active regions. Now all I've got to do it find the best tuning setting for the quark and improve my processing - all advice welcome. Imaging details:- Solar images - H-Alpha taken with Daystar Quark, white light through Baader Solar Filter. Telescope - Opticstar 127mm Triplet Apo with 2" UV/IR cut ERF Camera - ZWO ASI1600MM-Cool Software - Sharpcap, Registax, Photoshop AR2651 AR2653 Thanks in advance Neil