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Found 19 results

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

    Solar Flare May 10, 2023. Photos made with my 150 mm Halpha refractor telescope equipped with his stallion Fabry Perot PST Coronado prototype of 2004, optimized and modified by me, a Barlow 2x for enlargement and my 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

    This January 18, 2023 magnificent big spot with a double ejection that we see rising like a huge lasso, the luminous point in the spot and one of the ejection zones. 150 mm Halpha refractor in Coronado PST standard double stack and Apollo imx 429 camera

    © Andre cassese

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

    The contrast offered by a double stack is addictive, the impression of flying over the solar surface like so many waves above the tumultuous ocean. 150 mm Halpha refractor with double PST etalon and Apollo IMX 429 camera

    © Andre cassese

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

    The contrast offered by a double stack is impressive, the impression of flying over the solar surface in three dimensions. 150 mm Halpha refractor with double PST etalon and Apollo IMX 429 camera

    © Andre cassese

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

    A magnificent double-stacked spectacle with a contrast and a striking relief. 13 Janvier 2022 Fabry Perot PST standard 150 mm apo F/D 8 double stack refractor and Apollo IMX 429 camera

    © Andre cassese

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

    November 16 / 2022 a small overview around the solar limb in a double standard PST and 150 mm telescope with a DMK41 camera some beautiful filaments also extend over the panorama.

    © Andre cassese

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