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Found 10 results

  1. From the album: refractor 150 mm halpha observatoire Rocbaron

    150 mm apo halpha refractor - Fabry Perrot PST coronado prototype of 2004 optimized - Barlow 2.5 x and Apollo IMX 429 camera

    © Andre cassese

  2. From the album: Soleil Halpha lunette 120 mm et 80 mm

    Here is the first image taken with my new 120 mm Frehel achromatic and diaphragmed 100 mm sunglasses allowing me to reach an ideal F/D 10 ratio for observation with a standard PST modification on February 24, 2023. The Fabry Perot standard comes from an old 2005 PST Coronado telescope that I have just recovered and transformed with various optical filters. I then installed inside the telescope, a Lumicon rejection filter for the 77 mm aperture Halpha allowing increased contrast and a black background of the resulting image. This construction is perfectly complementary to the 150 mm Halpha telescope and well suited to turbulence depending on the observation conditions.

    © Andre cassese

  3. From the album: refractor 150 mm halpha observatoire Rocbaron

    Solar panorama and protuberances at the edge of the double limb Fabry Perot PST December 28, 2022 Refractor 150 mm F/D 8 Halpha Camera Apollo IMX 429 player one - Observatory of Robaron (France)

    © Andre cassese

  4. From the album: Soleil Halpha lunette 120 mm et 80 mm

    Solar disc of the God Ra in Halpha refractor 80 mm F/D 6.3 - double Fabry Perot PST 29 December 2022 Camera Apollo IMX 429 player one - Observatory of Robaron (France)

    © Andre cassese

  5. From the album: refractor 150 mm halpha observatoire Rocbaron

    beautiful protuberance forming a gigantic arc of plasma Double stack 150 mm refractor with two optimized Perot PST fabry standards and Apollo IMX 429 camera + 2x barlow

    © andre cassese

  6. From the album: refractor 150 mm halpha observatoire Rocbaron

    Double etalon PST fabry perot with 150 mm apo telescope (long plasma serpent on the solar surface) 29 sept 2022

    © Andre cassese

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