When Callisto’s round, black shadow crosses Jupiter on Friday night, September 17 between 6:15 pm and 11 pm EDT, it will be on, or near, the Great Red Spot – as shown in this simulated view for 8 pm EDT. The shadow will gradually slide to the left of the spot as Jupiter’s rotation outpaces…
Read more
This gorgeous image of the North America Nebula, and the Pelican Nebula to its right, was captured by Roman Kulesza. The pink colour arises from glowing hydrogen gas. Opaque dust in the foreground is separating the single large gas cloud into two nebulas, and producing the unique shapes. It was the SkyNews Photo of the…
Read more
This image of the LeoTrio of Galaxies was captured by Marcus Bauer. It was a NASA APOD for April 18, 2019. Top to bottom, the image spans one degree of the sky. The Hamburger Galaxy (NGC 3628) is at centre left. Messier 65 is at top centre and Messier 66 is at centre right. The…
Read more
This spectacular image by Petr Horalek od Institute of Physics in Opava shows reddish Mars (bottom centre) just below the blue Pleiades star cluster on March 3, 2021, and Mars’ “twin”, the reddish star Aldebaran above the “V” of Taurus at lower left. The red streak at the upper right is the California Nebula in…
Read more
This image of Orion’s Sword by my friend John Deans includes the Great Nebula in Orion, also known as Messier 42 and Messier 43, at centre. The bright knot of stars in the centre of the nebula were born out of the gas around them and are illuminating the nebula. The patch of nebulosity at…
Read more
This gorgeous patch of sky spans 6 by 11 degrees, or about a palm’s width by a fist’s diameter, held at arm’s length. The red nebulas at right are the Heart and Soul (IC 1805 and IC 1848) in Cassiopeia, 2500 light-years distant. The two bright star groups at left, in next-door Perseus, is collectively…
Read more
This terrific image of the sword of Orion was taken on January 7, 2019 by Rick Foster of Markham, Ontario. 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 the sky. Hello, mid-winter stargazers! Here are your Astronomy…
Read more
This spectacular photograph of the pre-dawn zodiacal light was captured on September 25, 2020 at 5:37 am by Malcolm Park of Prince Edward County, Ontario. The bright point at centre is the planet Venus. The knot of stars above Venus is Messier 44, also known as the Beehive Cluster, in Cancer. Malcolm’s gallery of beautiful…
Read more
This image of the young crescent moon by Dylan O’Donnell shows Earthshine – sunlight reflected off of Earth that slightly illuminates the dark portion of the moon’s Earth-facing hemisphere. Watch for it early this week. NASA APOD for March 20, 2015. Hello, Autumn Stargazers! Here are your Astronomy Skylights for the week of September 20th,…
Read more
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…
Read more