Mars a month after the opposition

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Astrofotografia lunghe focali Fuj View gallery (32 photos)

Mars a month after the opposition sent on November 12, 2020 (9:20) by Daniele Bonfiglio. 5 comments, 956 views.

1/100 ISO 160, tripod.

Marte il 06/11/2020. Fotocamera al fuoco diretto di un telescopio Maksutov-Cassegrain 127/1500 con aggiunta di moltiplicatore di focale 2x Tecnosky. Montatura motorizzata AZ-GTi Skywatcher. Somma di 200 migliori foto su 1200. A destra una simulazione ad alta risoluzione per confrontare i dettagli dell'immagine reale. Notare che nella simulazione non è presente la zona d'ombra sul lato destro del pianeta, che è invece presente nell'immagine reale, dovuta al fatto che il pianeta non è più in opposizione.

14 persons like it: Alejandro Colombini, Canopo70, Errevi, Fabio F77, Gabry Ella, Gigi Casati, Giovanni Battista Mancini, Marzio Bambini, MaxBon1977, Mimmo Aquino, Motofoto, Rockfort4634, Silver58, Teamwild

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Fabio F77

sent on November 12, 2020 (9:59) | This comment has been translated

Excellent

Daniele Bonfiglio

sent on November 12, 2020 (10:08) | This comment has been automatically translated (show/hide original)

Thank you very much Fabio!
I forgot to specify that the photo on the left is not resalated, but corresponds to the actual pixel resolution of the image projected by the telescope onto the sensor (i.e. an area of about 75x75 pixels).
Ciao, Daniele

Fabio F77

sent on November 12, 2020 (16:30) | This comment has been automatically translated (show/hide original)

In fact, Daniele the result is exceptional. With your camera and the focal point used, the planet has an angular size at the time of shooting less than 15" arc. Remarkable

Daniele Bonfiglio

sent on November 12, 2020 (16:42) | This comment has been automatically translated (show/hide original)

Thank you again Fabio!
In fact, at the time of recovery, the planet had an angular size of 19 arcsecs.
With my setup I get a sampling of 0.27 arcsecs/pixels.
This value is just below the theoretical resolution limit given by the diffraction of light, which according to Dawes's formula is about 0.3 arcsecs/pixels.
I can actually say I pulled my instrument to its performance limit! 8-)

Fabio F77

sent on November 12, 2020 (16:54) | This comment has been automatically translated (show/hide original)

thank you for the additional info
greeting

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