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2014 Edition Updates

Updates for the 2014 Observer's Handbook

 

On p. 8, under Editorial Team, Michael Gatto's name should be as it appears here.

On p. 38, "Tiangong-1" should be spelled as it appears here.

On p. 99, the Jupiter satellites diagram in the right column is incorrect. Use the document provided below.

On p. 128, the magnitude for Arcturus is incorrectly given. It should be magnitude -0.05 (as shown on p. 281).

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Welcome

Founded in 1868, The Royal Astronomical Society of Canada is Canada's leading astronomy organization bringing together over 4,800 enthusiastic amateur astronomers, educators, and professionals.

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Artemis II

Artemis II: Humans Fly Around the Moon Again

Four astronauts will travel around the Moon and return to Earth on a ~10-day mission that tests deep-space systems and advances lunar science.

ArtemisII Main Banner

Launch: no earlier than Feb 6, 2026 (date may shift based on readiness and conditions)

Mission duration: ~10 days

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JRASC December 2025

Inside this issue:

What is the Speed of Earth?
Mary Lea Heger Mystery
Nothing Minor

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2026 Edition Updates

To report other corrections or to make suggestions for improvement, please send an email message to https://www.rasc.ca/contact/Handbook_Editor.

The following corrections have been noted to the 2026 edition:

On p. 15, the correct page number for ALPO is 184

On p. 237, in the Ceres paragraph, ignore the portion in parentheses in lines 6 and 7. Ceres does not reach opposition in 2026.

On p. 291, the 16th line from the top should be lambda Orionis.

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JRASC October 2025

Inside this issue:

  • Record of the Crab Nebula Supernova
  • Herbig-Haro 39 Redux

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JRASC August 2025

Inside this issue:

  • The Sunrise Partial Eclipse
  • Reading Copernicus

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The Stories of Sudbury's Observatories ca. 1966-2025

THE STORIES OF SUDBURY'S OBSERVATORIES ca. 1966–2025
by STEVE DODSON

Sudbury has had active astronomical observatories for the past six decades. They represent both amateur and professional effort, and more than once the cooperation of astronomers across the vocational/avocational divide.
 
See also: RASC Sudbury Astronomy Club: Solar Observatory Project 1980-1989.

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JRASC June 2025

Inside this issue:

  • Wilkinson Memorial Observatory Redux
  • The Role of Citizen Science in Modern Astronomy

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JRASC April 2025

Inside this issue:

  • William Blair Bruce: An Artist’s Arctic Eclipse
  • In Hubble’s Nebula (NGC 2261) a jet-like structure to the south has disappeared

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