This amazing composite image by Detlef Hartmann shows the continued expansion of the Crab Nebula Supernova Remnant (aka Messier 1) in Taurus over 10 years (Sept 29, 2008 through Sept 22, 2017). It spans about 0.1 degrees of the sky. In the heart of the nebula sits a rapidly rotating neutron star that emits radio…
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This spectacular image of the Pleiades Star Cluster (Messier 45) in Taurus was captured and processed by Shawn Nielsen of Kitchener, Ontario. Notice both the bright blues of reflection nebulosity and the darker dust in the background. Shawn posts his images on social media as @Visible Dark_ . His website https://visibledark.ca/ contains many more treasures.…
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This fantastic widefield composite image of the 2020 Quadrantids meteor shower over Flajšová, Oravská Lesná, Slovakia was captured by Czech astronomer Petr Horálek on the nights bracketing the peak of January 4.The radiant is out of frame to top left. That year, the star Betelgeuse in Orion (right of centre) was unusually dim. The glowing…
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Merry Christmas to those who celebrate! This wonderful object, known as the Christmas Tree Cluster or NGC 2264, is located in the constellation of Monoceros (the Unicorn), which occupies the winter sky between Orion and Gemini. The red glows are hydrogen gas being energized by the clump of hot, young stars recently born in the…
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As shown above, on Saturday, December 31, 2022 from 6:48 to 6:53 am EST, the International Space Station will be visible flying over the GTA in a very pass, exiting Earth’s shadow above the northwestern horizon, then flying closely past Polaris and the very bright star Vega before setting below the eastern horizon. (courtesy: Heavens-above.com)…
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When the very bright “dog star” star Sirius (aka Alpha Canis Majoris) climbs high enough to clear the treetops around 10 pm local time on Christmas, its intense light and flashes of festive colour are bound to catch your eye, and just might fill you with Holiday spirit! Happy Hanukkah and Winter Solstice, Stargazers! Here…
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Geminids Meteors viewed from Chile, a four-hour composite imaged by Yuri Beletsky at Las Campanas Observatory in 2013. Orion is upside-down at left and the twin stars Castor and Pollux sit near bright Jupiter at centre. NASA APOD for December 8, 2019. Hello, mid-December, Stargazers! Here are your Astronomy Skylights for the week of December…
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This labelled map of Mars shows which features will be facing Earth-based telescopes around midnight EST on December 7-8, the night of Mars’ opposition. Mars’ northern polar cap will appear as a bright spot that the darge wedge of Syrtis Major points toward. Your telescope will probably mirror image and/or invert this view. (Starry Night…
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This terrific image of Mars was taken by Andrea Girones of Ottawa on November 23, 2022 at 11:35 pm EST. The large bright area at upper left is named Aeria. the dark region below that is Sinus Sabaeus, and the dark feature to the right is Mare Acidalum. Dark features on Mars tend to be…
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This image by Kent Wood was NASA’s Astronomy Picture of the Day for October 27, 2017. It shows the bright star Mirach aka Beta Andromedae and the distant background elliptical galaxy NGC 404 positioned just to its north-northwest (upper left of centre). The galaxy, which is nick-named Mirach’s Ghost, can be seen in 6″ or…
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