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  2. Egg Nebula - Wikipedia

    en.wikipedia.org/wiki/Egg_Nebula

    A visual band light curve for V1610 Cygni (the Egg Nebula), adapted from Hrivnak et al. (2010) [3] The Egg Nebula's defining feature is the series of bright arcs and circles surrounding the central star. A dense layer of gas and dusts enshrouds the central star, blocking its direct light from our view. However, the light from the central star ...

  3. Zeiss projector - Wikipedia

    en.wikipedia.org/wiki/Zeiss_projector

    The Mark III modified projector installed in the Planetario Humboldt 1950 in Caracas - Venezuela.It is the oldest in Latin America. Marks II through VI utilized two small spheres of lenses separated along a central axis. Beginning with Mark VII, Zeiss projectors adopted a new, egg-shaped design.

  4. Rossiter–McLaughlin effect - Wikipedia

    en.wikipedia.org/wiki/Rossiter–McLaughlin_effect

    The viewer is situated at the bottom. Light from the anticlockwise-rotating star is blue-shifted on the approaching side, and red-shifted on the receding side. As the planet passes in front of the star it sequentially blocks blue- and red-shifted light, causing the star's apparent radial velocity to change, but it does not in fact change.

  5. Digistar - Wikipedia

    en.wikipedia.org/wiki/Digistar

    Digistar is the first computer graphics-based planetarium projection and content system.It was designed by Evans & Sutherland and released in 1983. The technology originally focused on accurate and high quality display of stars, including for the first time showing stars from points of view other than Earth's surface, travelling through the stars, and accurately showing celestial bodies from ...

  6. VFTS 102 - Wikipedia

    en.wikipedia.org/wiki/VFTS_102

    VFTS 102 is a star located in the Tarantula nebula, a star forming region in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. The peculiarity of this star is its projected equatorial velocity of ~ 610 km/s (about 2,000,000 km/h ), making it the second fastest rotating massive star known alongside VFTS 285 ( 609 km/s ), and ...

  7. Rotating ellipsoidal variable - Wikipedia

    en.wikipedia.org/wiki/Rotating_ellipsoidal_variable

    A light curve for Spica, adapted from Tkachenko et al. (2016) [1] Rotating ellipsoidal variables are a class of close binary variable star systems whose components are ellipsoidal. They are not eclipsing, but fluctuations in apparent magnitude occur due to changes in the amount of light emitting area visible to the observer. Typical brightness ...