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    • The Colour of Stars - Australia Telescope National Facility
      • The colour that we see is usually an additive combination of the emissions from each wavelength. Hot stars appear blue because most energy is emitted in the bluer parts of the spectrum. There is little emission in the blue parts of the spectrum for cool stars - they appear red.
      www.atnf.csiro.au/outreach/education/senior/astrophysics/photometry_colour.html

      The Colour of Stars - Australia Telescope National Facility

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  3. www.verywellhealth.com › why-do-i-see-stars-3422028Seeing Sparkles of Light: Photopsia Causes and Treatment

    Jun 2, 2024 · In addition to giving you a burst of energy, the fight-or-flight response causes the dilation (widening) of the pupils so you can see clearly in the dark. When this happens, the sudden dilation can shift the vitreous and trigger photopsia.

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  4. www.webmd.com › eye-health › what-to-know-seeingWhat Does It Mean When You See Stars in Your Vision? - WebMD

    May 30, 2023 · What Causes Stars in Your Vision? Seeing stars happens when pressure is applied to your eye while your eyes are closed. Illusions of bright light, sparks, or various colors may appear.

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  6. www.medicalnewstoday.com › articles › 321263Why am I seeing stars? Causes and what it looks like

    Dec 7, 2023 · A person typically sees stars, sparkles, or flashes of light because of a disturbance in the retina or brain. The retina is a lining of cells that sits at the back of the eye and sends...

  7. scienceline.org › 2014 › 12Why do we see colors with our eyes closed? - Scienceline

    Dec 29, 2014 · These signals travel through the optic nerve to a part of the brain called the visual cortex. Here, the brain reconstructs an image using the information received from the eyes. When a reconstructed image looks like nonsense, the brain is quick to label the image as unreal, or a phosphene.

  8. www.open.edu › astronomy › the-colour-starsThe colour of stars | OpenLearn - Open University

    Oct 18, 2019 · Quite simply, the colour of a star is a measure of its surface temperature. Cooler stars emit more of their light at longer wavelengths and so appear redder; hotter stars emit more of their light at shorter wavelengths and so appear bluer.

  9. www.allaboutvision.com › symptoms › starburst-lightsWhy Do I See Starbursts Around Lights? - All About Vision

    Aug 18, 2021 · Starbursts can appear in your vision when something changes the way light enters your eyes. When people see starbursts, they’re usually most bothersome around bright lights at night, when they cause thin rays of light to radiate from the center of each light source.

  10. www.skyatnightmagazine.com › star-coloursStar colours explained for beginners - BBC Sky at Night Magazine

    Why stars are different colours, red, blue and white, and how to see star colours more effectively when observing the night sky.

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