Ptolemaeus-Nubium area in selenochromatic style

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Ptolemaeus-Nubium area in selenochromatic style

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Ptolemaeus-Nubium area in selenochromatic style sent on 01 Dicembre 2022 (8:41) by Serafix. 11 comments, 552 views.

Una mia immagine selenocromatica di Tolomeo-Nubium area. Le riprese risalgono allo scorso ultimo quarto e sono fatte con la tecnica che descrivo nei miei video. Il canale di cromianza è un pannello ripreso al fuoco diretto; la luminanza è un mosaico di una quindicina di pannelli ripresi con barlow 2,5x (Telescopio: C8 Camera: P1 Neptune-C).

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23 persons like it: Albertopantellini, Alex Pezzoili, Amirkhani, AstroC, Claw, Coolshot, ElenaEye, Fabrizios53, ForeverYoung, Gio65, Gp70, Hugo P, Ilario Frassinelli, Jste70, Mamaroby, Marcello VH, Marco_Borea, Marcon, MarsCr, MassimoViacava, Slashleo, Valerioconti, Zanardo

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Serafix

sent on 01 Dicembre 2022 (8:46)

This comment is too long to be automatically translated, so it will be shown in its original language (Italian)

Click here to translate the comment in English

Sono molto contento del risultato in quanto riprendere tutte quelle luminanze è stata una fatica immensa.
Lo stack delle riprese è stato fatto con Autostakkert; La CCE (Chromatic Controlled Enhancement) è stata fatta in Photoshop.
In quest'immagine sono presenti 28 reperi, tutti verificati e confermati, ottenendo quindi un Mineral Score pieno. L'immagine quindi rispecchia i colori ottenuti da LRO e sonda Galileo.
Non so se lo avevo già scritto in precedenza.... in generale, i colori sulla Luna sono dominati dalle variazioni del contenuto di ferro e titanio. Le regioni di mare hanno una bassa riflettanza perché contengono quantità relativamente elevate di ossido di ferro (FeO, colore rossastro). Alcuni basalti di mare contengono quantità insolitamente elevate di ossido di titanio (TiO2, colore bluastro) oltre all'ossido di ferro, il che rende la riflettanza ancora più bassa. Le diverse percentuali di questi ossidi contenute nei minerali sposta il colore dei mari dal rosso al blu.

Marcello VH

sent on 01 Dicembre 2022 (8:52) | This comment has been automatically translated (show/hide original)

Hello, does that mean that these are the colors we would see from the porthole of a spaceship?

Serafix

sent on 01 Dicembre 2022 (10:27) | This comment has been automatically translated (show/hide original)

claro that no. you get the colors in post-processing with a high oversaturation ;-)
paying attention, however, to photos like this
planetary.s3.amazonaws.com/web/assets/pictures/20171005_a17TD1454903HR
it is already possible to glimpse them in deposits of material emerging on the ground

Gp70	sent on 01 Dicembre 2022 (16:21) \| This comment has been automatically translated (show/hide original) Beautiful recovery, congratulations Gp Bella ripresa, complimenti Gp

Marcello VH

sent on 01 Dicembre 2022 (16:56) | This comment has been automatically translated (show/hide original)

Thanks for the explanation, bye.

Serafix

sent on 01 Dicembre 2022 (17:38) | This comment has been automatically translated (show/hide original)

Thank you for the comments Sorriso

Jste70

sent on 01 Dicembre 2022 (18:05) | This comment has been automatically translated (show/hide original)

Crazy photo, very interesting also your description compliments

Serafix

sent on 01 Dicembre 2022 (18:47) | This comment has been automatically translated (show/hide original)

thanks Jste70 :-)
I would add again that the Lassell Massif in the Mare Nubium (in the center of the image, with a blue spot), of a characteristic orange color, is a mountain complex of ancient lava flows, volcanic craters and perhaps a cover of pyroclastic material (ash). This area and the surrounding regions have a complex volcanic history. The southern half of the massif absorbs more UV rays than the northern half, making it redder.
Inside this red-orange "pool" there is Lassell D, recognizable by the blue spot. You can't see it in my image, but in LRO's image, a vast spider's web-like ray is evident.

Hugo P

sent on 05 Dicembre 2022 (23:20) | This comment has been automatically translated (show/hide original)

Congratulations beautiful photo :-)

Serafix

sent on 06 Dicembre 2022 (9:00) | This comment has been automatically translated (show/hide original)

thank you very much Hugo :-)
even if "photo" is a bit simplistic, given the amount of information it brings, the work involved to obtain it and the purposes for which it was conceived :-)
In our group we call them rather "tables"; if you notice at the bottom right it also bears a small "info bar" that contains a series of technical information (how the shots were made, the degree of reliability and consistency of the image, etc.).

MassimoViacava

sent on 12 Novembre 2023 (7:20) | This comment has been translated

Nice!

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