North America & Pelican

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Astrophotography

6.0 MEGAPIXEL

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Astrofotografia 2 View gallery (60 photos)

North America & Pelican sent on July 01, 2024 (9:54) by Losi Andrea. 6 comments, 266 views.

https://youtu.be/tzg6QTNTaCI?si=YT0IqUGIzIQEmxid

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9 persons like it: Alex Pezzoili, Fabrizios53, ForeverYoung, Grizzly, Marzio Bambini, NeveNera, PBrugne, Sandro Zambon, Zinder

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Losi Andrea

sent on July 01, 2024 (9:55) | This comment has been automatically translated (show/hide original)

PhAstro

sent on July 01, 2024 (13:34) | This comment has been automatically translated (show/hide original)

But why did H-alpha come in OIII color ???

Losi Andrea

sent on July 01, 2024 (14:03) | This comment has been automatically translated (show/hide original)

Filters SII HA OIII i.e. SHO becomes this color

PhAstro

sent on July 01, 2024 (14:20) | This comment has been automatically translated (show/hide original)

Oh got it. I prefer the classic red

Losi Andrea

sent on July 01, 2024 (19:47) | This comment has been automatically translated (show/hide original)

For the colors I chose the Hubble palette used by
NASA with images from the Hubble telescope.
The realization requires the use of three interference filters that pass very narrow bands
(4nm) of the spectrum allowing us to capture the emissions of: ionized hydrogen (H Il), ionized oxygen (O III) and ionized sulfur (S II).
When constructing the image, the three channels are associated with the usual RGB combination:
SII-> Red
Ha-> Green
OIII-> Blue

PhAstro

sent on July 05, 2024 (7:40) | This comment has been automatically translated (show/hide original)

Here. Hubble palette does not refer to real colors but rather to something more picturesque that certainly serves to capture attention. Just google "Hubble palette" to realize that they are all the same, with the same effect. Nothing personal but I don't like it

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Some comments may have been automatically translated with Microsoft Translator.