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scitmon

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  1. Jupiter & Ganymede on 24th November, my first ever attempt at planetary lucky imaging.
  2. So I had my first planetary imaging run on the 24th and here is my result: https://www.astrobin.com/ed1uex/ I am pretty pleased with the result and a few things occurred to me on reflection: Getting the target in the fov was a big challenge. I was hoping I could attempt plate solving but quickly realised that was a non starter with the skymax's very narrow fov. My finder wasn't aligned so I had to rely on polar aligning, slewing to target and then doing a spiral search. This was still not straight forward, and it just took time and perseverance to get it. Other than aligning the finder in daytime before hand, any one have any tips with this? I did 10ms exposures for 90 seconds, based on a youtube video guide I was following, I defo want to try even shorter next time. Any recommendations on settings welcome. I encountered a meridian limits mid session and could not find any options to flip with stellerium and/or EQMOD, I ended up disabling limits, is there any danger in doing this other than cable tangling? Will there be any benefit in using my 2x barlow next time?
  3. the 662 looks like the leading candidate then, thank you for the advice!
  4. Ok... so am I better off trying to match a camera to my scope, or matching my F Ratio to the best camera? For example ZWO say their best planetary camera is a the 678MC with a pixel size of 2μm, am I better using this with a reducer? or x2 bin? Or go for something like ASI662MC which is a much closer match at 2.9μm?
  5. Thanks for the responses @vlaiv I was also wondering what the limiting factor tends to be when adding more focal length such as a barlow... I presume its the seeing conditions? If so am I likely to be pushing it too far with 5400mm FL?
  6. As the title says, I'm thinking of getting into planetary/lunar imaging. I have a severely underused Skymax 180 which I want to use, and I'm wondering if anyone can recommend any resource to get me started? Or perhaps answer some questions: - what is best to capture videos to? an onboard minipc or the asair? or just use a laptop? Which software is best? - Is an autofocuser worth the money or can I get good focus manually? - do I capture in EQ or AZ mode?
  7. This! In a world of narrowband imaging and post processing, glass is less important than build quality imo. The reason I upgraded my doublet was 90% to get a sturdier focuser.
  8. take a look at https://www.lightvortexastronomy.com/tutorial-preparing-images-for-publication.html
  9. Hello All, I'm looking into buying my Dad a pair of binoculars for general use (not astro necessarily, things like bird watching, sight seeing, etc.) and I'm not really clued up what kind of objective size and magnification would be most appropriate? Also which brands are the best? I would welcome advice please!
  10. Pixinsight's FWHMEccentricity script
  11. I suppose the test for that would be to rotate the camera and see if the tilt moves on the image?
  12. I've done a couple of imaging runs with my new setup now, and have noticed they have funny stars, especially in the bottom left corner. I'm guessing it's camera tilt but can someone confirm? Might get the ZWO tilt plate if so.
  13. OK I had a quick go with your stacked files and here is my result: I don't know if those artifacts are hidden in my image or don't exist. I can't explain how you got them. My workflow was: - ran AutomaticBackgroundExtractor on both ha and rgb (subtraction) - extracted red from ha, and g and b from rgb - staraligned ha_r to rgb_g - ran LinearFit with rgb_g as reference on ha_r and rgb_b - ChannelCombined them - did a STF stretch via HistogramTransferFunction Perhaps someone else can shed light on the mystery. Image14.xisf
  14. By uncooked do you mean the non cooled one? If so I would rethink that, save a little longer for the pro version, or shop around for a second hand one. As for CA on the Startravel... not sure on broadband images, but if you go down the narrowband route you can certainly get decent results. Example: https://www.astrobin.com/dlrjp8/0/ I think the big question mark is your mount, have you experimented already on how long an exposure you can get before star trailing starts?
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