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  1. From the album: Sun refractor 185 mm Halpha

    A magnificent solar flare this May 13, 2024 with my 185mm apo Askar scope with Fabry Perot PST Coronado optimized Halpha Barlow 2.5 x and Camera player one

    © andre cassese

  2. From the album: Sun refractor 185 mm Halpha

    The large active ejection zone May 9, 2024 185 mm APO refractor in double stack Febry Perot PST Coronado modified and optimized Camera player one and barlow 2.5x

    © andre Cassese

  3. From the album: Sun refractor 185 mm Halpha

    The large active ejection zone May 9, 2024 AR 3664 185 mm APO refractor in double stack Febry Perot PST Coronado modified and optimized Camera player one and barlow 2.5x
  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

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

    The modification in double PST opened to me an Unsuspected dimension of our star, everything is nothing more than relief with peaks, waves, mountains and plains, everything is movement and vertigo, because the contemplation of this plasma in fury and a fascinating monstrosity.

    © Andre cassese

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