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Spring Sky Constellations - Big Dipper and Leo (RF15mm Ra).jpg
A wide-angle image of the main northern spring sky constellations — with the Big Dipper and Ursa Major at top, and Leo below it. At left is Arcturus in Bootes and at bottom left, Spica in Virgo. Leo is flanked by two large star clusters: Mel111, the Coma Berenices cluster at left of Leo (but in the centre of the image), and M44, the Beehive cluster at right of Leo in Cancer (at lower right in the image).
This is a good image for illustrating the "Arc to Arcturus and Speed to Spica" expression, as well as the placement of Leo below the Bowl of the Dipper. And the location of the North Galactic Pole and Realm of the Galaxies.
This is a stack of 4 x 2.5 minute exposures with the RF15-35mm lens at f/2.8 and Canon EOS Ra at ISO 800. The camera was on the Star Adventurer 2i tracker. Taken from home April 27, 2022.
This is a good image for illustrating the "Arc to Arcturus and Speed to Spica" expression, as well as the placement of Leo below the Bowl of the Dipper. And the location of the North Galactic Pole and Realm of the Galaxies.
This is a stack of 4 x 2.5 minute exposures with the RF15-35mm lens at f/2.8 and Canon EOS Ra at ISO 800. The camera was on the Star Adventurer 2i tracker. Taken from home April 27, 2022.
- Copyright
- © Alan Dyer/AmazingSky.com
- Image Size
- 6720x4480 / 12.7MB
- www.amazingsky.com
- Contained in galleries
- Big Dipper, Various Constellations

