A 20'' RC with Orion in the background (OAPM)

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Astrophotography

A 20'' RC with Orion in the background (OAPM)...

20.0 MEGAPIXEL

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A 20'' RC with Orion in the background (OAPM) sent on January 21, 2024 (19:35) by Mcastro. 4 comments, 447 views.

at 31mm, 4 sec f/4.0, ISO 6400, tripod.

Quello in foto è un telescopio Ritchey-Chretien D. 0,53mt. – F. 4600mm su montatura equatoriale a forcella e si trova a Montarrenti dov'è stato ricavato, tempo fa, l'osservatorio oggi in gestione all'UAS di cui io sono socio. Nel mentre puntava Giove ho pensato di fargli questa foto con Orione sullo sfondo. Il ritaglio quadrato è per togliere i bordi della cupoli che non mi piacevano.

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4 persons like it: Giovanni Soligo, Gp70, Marcello VH, Sandro Zambon

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Marcello VH

sent on January 22, 2024 (7:01) | This comment has been automatically translated (show/hide original)

Beautiful and unusual photo. A little moonlit the telescope?
An acquaintance of mine has a similar one, unfortunately the primary has accumulated a lot of dust, I think it is about 40cm.
How can it be cleaned? Is specialized intervention necessary? In the case of my acquaintance, the observations are quite mediocre, unfortunately...
I don't know if and how he cleaned it.

Mcastro

sent on January 22, 2024 (9:14) | This comment has been automatically translated (show/hide original)

It was lit up by the moon.
The primary mirror, if slightly dusty, is not a big problem in the end for observations (but also for photography).
For thorough cleaning, the breech must be disassembled and then everything recollimated and on a 40 cm it is not really a joke but every now and then it must be done.

Marcello VH

sent on January 23, 2024 (6:16) | This comment has been automatically translated (show/hide original)

Thank you. Unfortunately, in the case of my acquaintance, there was a lot of dust... I don't know how he got to that point.

Aznavour65

sent on May 13, 2024 (9:10) | This comment has been automatically translated (show/hide original)

What a beast!!

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Some comments may have been automatically translated with Microsoft Translator.