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X-WR-CALDESC:Events for RASC Hamilton
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DTSTART;TZID=America/Toronto:20250418T200000
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DTSTAMP:20260430T113014
CREATED:20250329T002221Z
LAST-MODIFIED:20250329T003510Z
UID:19571-1745006400-1745038800@www.hamiltonrasc.ca
SUMMARY:The Whirlpool and Pinwheel Galaxies (all night)
DESCRIPTION:On evenings during mid-April\, the Big Dipper is positioned nearly overhead with its handle pointed down to the east. On this week’s moonless nights\, two impressive galaxies can be seen in binoculars (orange circle) and backyard telescopes by using the bright star Alkaid at the tip of the dipper’s handle to find them. The Pinwheel Galaxy\, or Messier 101\, is a spectacular\, large\, face-on spiral galaxy positioned a slim palm’s width to the lower left (or 5.5 degrees north) of Alkaid\, forming an equilateral triangle with Mizar\, the double star at the bend of the dipper’s handle. This relatively close galaxy (21 million light-years away) is nearly as large as the full moon in the sky. Since the galaxy’s light is spread over such a large area\, its overall brightness is lowered. Aim your binoculars several finger widths to the upper right (or 3.7 degrees to the southwest) of Alkaid to discover the iconic Whirlpool Galaxy\, aka Messier 51. This spiral galaxy’s angular size is smaller\, but it will look somewhat brighter in your binoculars and telescope. A secondary galaxy core designated NGC 5195 close beside M51 is linked by a bridge of material.
URL:https://www.hamiltonrasc.ca/event/the-whirlpool-and-pinwheel-galaxies-all-night/
CATEGORIES:Astronomical Events
ATTACH;FMTTYPE=image/jpeg:https://www.hamiltonrasc.ca/wp-content/uploads/2025/03/Apr18-2025-at-10-pm-The-Whirlpool-and-Pinwheel-Galaxies.jpg
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DTSTART;TZID=America/Toronto:20250419T200000
DTEND;TZID=America/Toronto:20250420T050000
DTSTAMP:20260430T113014
CREATED:20250329T002221Z
LAST-MODIFIED:20250329T003559Z
UID:19572-1745092800-1745125200@www.hamiltonrasc.ca
SUMMARY:Ursa Major Galaxies (all night)
DESCRIPTION:The Big Dipper asterism and its home constellation of Ursa Major are very high in the northern sky in late evening during mid-April – ideal for observing the spectacular galaxies they host in strong binoculars or backyard telescopes on the dark nights this weekend. Draw a line connecting the dipper stars Phecda to Dubhe\, and extend it by an amount equal to their separation to arrive at the galaxy named Bode’s Nebula\, otherwise known as Messier 81. It’s a magnitude 6.9 spiral galaxy oriented not quite face-on to Earth\, making it appear relatively large and bright. A smaller\, magnitude 8.4 galaxy named the Cigar or Messier 82 is located less than a finger’s width below (or half a degree to the celestial north of) it. That allows both galaxies to be viewed together in the eyepiece of a telescope at low magnification (inset). Several other fainter galaxies can be found within a few degrees of Bode’s Nebula.
URL:https://www.hamiltonrasc.ca/event/ursa-major-galaxies-all-night/
CATEGORIES:Astronomical Events
ATTACH;FMTTYPE=image/jpeg:https://www.hamiltonrasc.ca/wp-content/uploads/2025/03/Apr19-2025-at-10-pm-Ursa-Major-Galaxies.jpg
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