The bright and large open star cluster known as the Pleiades or Messier 45 is composed of sibling stars (the daughters of Atlas and Pleione in Greek mythology) that formed of the same gas cloud. Interstellar dust in the foreground scatters the stars’ light with a blue colour. The cluster is very easily seen with…
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This image of the Winter Hexagon / Football was taken by Jeff Dai. Start with bright Sirius just above the hills at lower right, then head straight up to Rigel, and to the upper left to reddish Betelgeuse, and then bright yellow Capella on the left. Next head down to Castor and Pollux, and finally…
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Valentine’s Day is right around the corner! This beautiful object is called the Rosette Nebula (or NGC 2244). It’s located in the constellation of Monoceros (the Unicorn), just to the left (east) of Orion. The Rosette is a cradle of glowing Hydrogen gas that has birthed about 2500 young stars in its centre. This image…
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This spectacular astrophotograph of Orion’s Sword by Michael Watson of Toronto has been annotated to highlight the many and varied deep sky objects in this part of the sky. The colourful Messier 42 nebula is glowing by the light of young stars formed within it. The area shown here covers about 2 finger widths of…
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Several times a year at the moon’s first quarter phase, a feature called the Lunar X becomes visible in strong binoculars and small telescopes. For a few hours starting at approximately 11:15 pm EST on Monday, December 2, the illuminated rims of the craters Purbach, la Caille, and Blanchinus will combine to form a small,…
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Globular star Cluster Messier 2 aka NGC 7089 is located 55,000 light-years from our sun in the constellation of Aquarius. In binoculars and backyard telescopes, the cluster will appear as a faint fuzzy patch of light – as opposed to this spectacular Hubble space Telescope image from earlier this year. NASA APOD for April 4,…
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The beautiful Triangulum Galaxy, also known as Messier 33, dim because it is oriented nearly face-on to Earth, spans 1.5 full moon diameters in the sky. Some people have been able to see it with unaided eyes. At 2.75 million light-years from Earth – that’s the farthest object a human eye can see! This image…
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