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  • Stargazing News - August 29th, 2025

    From CJ@954:100/61 to All on Thursday, August 28, 2025 07:52:10
    Friday August 29, 2025

    Catch the Colors of Stars (evening)

    Stars shine with a color that is controlled by their photospheric temperature, and this is captured in their spectral classification. Late August evenings offer a fine opportunity to see a variety of colored stars. In the eastern
    sky, the three bright stars of the Summer Triangle asterism, named Deneb,
    Vega, and Altair, are A-class stars that appear blue-white to the eye. They have temperatures in the range of 7,500 to 10,000 Kelvins. Arcturus, which is located in the western sky after dusk, is an orange, K-class giant star with a temperature of only 4,300 K. Reddish Antares, the heart of Scorpius, is an old M-class star with a low surface temperature of 3,500 K. After midnight local time, look for very bright, yellowish Capella rising in the northeast. You can estimate the temperatures of fainter stars by comparing their color to these bright reference stars.

    (Data courtesy of Starry Night)
    --- SBBSecho 3.23-Linux
    * Origin: CJ's Place, Orange City FL > cjsplace.thruhere.net (954:100/61)