Skip to content
info@acac.space

ACAC

Community amateur astronomy education, promotion, and observation.

  • News
  • About
  • Activities
  • Topics
  • Conditions
  • Contact
Welcome to Prince Edward Island's only astronomy club.
Join us and explore the universe with us!
 

Daily Astronomy Blurb:
Dawn of the Crab

One of the all-time historic skyscapes occured in July 1054, when the Crab Supernova blazed into the dawn sky. Chinese court astrologers first saw the Guest Star on the morning of 4 July 1054 next to the star Tianguan (now cataloged as Zeta Tauri). The supernova peaked in late July 1054 a bit brighter than Venus, and was visible in the daytime for 23 days. The Guest Star was so bright that every culture around the world inevitably discovered the supernova independently, although only nine reports survive, including those from China, Japan, and Constantinople. This iPhone picture is from Signal Hill near Tucson on the morning of 26 July 2025, faithfully re-creates the year 1054 Dawn of the Crab, showing the sky as seen by Hohokam peoples. The planet Venus, as a stand-in for the supernova, is close to the position of what is now the Crab Nebula supernova remnant. Step outside on a summer dawn with bright Venus, and ask yourself "What would you have thought in ancient times when suddenly seeing the Dawn of the Crab?"
© apod.nasa.gov

ACAC News

Athena Community Astronomy Club

Upcoming Events

Monthly Meeting
Monthly Meeting
Aug 31, 2025
7:00 pm - 9:00 pm
Monthly Meeting
Monthly Meeting
Sep 28, 2025
7:00 pm - 9:00 pm
Monthly Meeting
Monthly Meeting
Oct 26, 2025
7:00 pm - 9:00 pm

Past Events

Monthly Meeting
Monthly Meeting
Jul 27, 2025
7:00 pm - 9:00 pm
Monthly Meeting
Monthly Meeting
Jun 29, 2025
7:00 pm - 9:00 pm
Monthly Meeting
Monthly Meeting
May 25, 2025
7:00 pm - 9:00 pm

Recent News

  • Every amateur astronomer knows the name, many have his books. Probably the last…
  • It’s SUMMER! Yeah, that means suspension of our regular monthly meets, but not u…
  • Moon over Searletown. Time slides on. Cloud feces.
  • Cloudy, cloudy eve. Sidewalk astronomy not likely. It’s not that we don’t want…
  • Monthly Meeting reminder: Sunday, 26 May, 7- 9p.m. @ Wilmot Community Centre (Gi…
© 2023 ACAC.space
Powered by maplecube.net