Mars 16-Dec-24 | Astrobiscuit | Page 1

round compass Dec 17, 2024, 2:41 AM

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Mars a few hours ago. Average seeing at ~35° before high cloud rolled in.
24" Dob, 4x PM, ADC, ASI462MM at 10500mm f/17.5. Astronomik IR742, B

willow root Dec 17, 2024, 2:41 AM

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see you in HOF wholesome

delicate merlin Dec 17, 2024, 3:17 AM

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Wooooow, impressive.
This was broadband?

median whale Dec 17, 2024, 6:31 AM

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https://tenor.com/view/ren-and-stimpy-shocked-jaw-drop-cartoon-ren-hoek-gif-10038549317217386424

Tenor

dense moat Dec 17, 2024, 6:35 AM

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Crazy

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How did you get colour data shooting only in IR?

round compass Dec 17, 2024, 8:58 AM

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dense moat How did you get colour data shooting only in IR?

Yeah it’s IR & B. Then synthetic G

dense moat Dec 17, 2024, 9:30 AM

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round compass Yeah it’s IR & B. Then synthetic G

Is "synthetic green" when you combine the red and blue data into one layer and then make that merged layer 50% opacity and put it as your "green" channel?

round compass Dec 17, 2024, 9:31 AM

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dense moat Is "synthetic green" when you combine the red and blue data into one layer and t...

Yup.

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You have to derotate them to the same time and normalise on the ice cap first though.

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No G filter kekw

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But yes, that too

tiny idol Dec 17, 2024, 10:16 AM

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Hey man don’t disregard G like that

gentle scarab Dec 17, 2024, 10:16 AM

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Synthetic green wouldn't look the same as real green even with a proper red and blue filter.

tiny idol Dec 17, 2024, 10:17 AM

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Yeah G not getting the credit it deserves

gentle scarab Dec 17, 2024, 10:17 AM

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https://www.planetary-astronomy-and-imaging.com/en/use-true-green-filter/

PLANETARY ASTRONOMY

Christophe Pellier

Use a true green filter for your images

tiny idol Dec 17, 2024, 10:19 AM

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In Tom’s case I understand why sG is preffered, or when you don’t have a G filter but you do have R and B, but if you have a filter wheel and a G filter then you might as well do a true G image imo

round compass Dec 17, 2024, 10:21 AM

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I don’t have a G filter
I don’t have a FW
I’m hella seeing limited so the Synthetic route is sharper.

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I do have the Uranus-C for OSC though when seeing is good

round compass Dec 17, 2024, 10:22 AM

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gentle scarab https://www.planetary-astronomy-and-imaging.com/en/use-true-green-filter/

Also this comparison looks very oversaturated. This will amplify the apparent difference.

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I might experiment with integrating some Uranus-C data into the sG channel next time 🤷‍♂️

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In the case of dust storms

gentle scarab Dec 17, 2024, 10:32 AM

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My point was to disagree with green being a waste of time if an imager has the means to use it. The comparison highlights that dust storms on Mars will look different since yellow isn't captured as well with synthetic green.

inland moss Dec 17, 2024, 10:46 AM

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You sure u didn’t take this from a Mars satellite?

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https://tenor.com/view/shocked-emoji-shocked-outraged-screaming-terrified-gif-15558153567339235171

Tenor