Comet C/2022 E3 (ZTF)’s trajectory shows that it last flew by Earth roughly 50,000 years ago.
Jan 24, 2023
Bits of asteroid Bennu will parachute back to Earth from space later this year, on Sept. 24, 2023.
Jan 25, 2023
The long-period comet designated C/2022 E3 (ZTF) is predicted to become bright enough to be seen by Northern Hemisphere skywatchers on February 1.
Jan 26, 2023
The gorging was spotted on March 1, 2022, in a galaxy 300 million light years away.
Jan 26, 2023
Features
JWST explores atmosphere of ‘hot Saturn’ exoplanet
WASP-39 b has sulfur dioxide; sodium, potassium, water vapour, and carbon monoxide were also detected in the atmosphere.
Nov 29, 2022
This Week’s Sky: January 9-15
Keep an eye out for a collection of about 100 young, massive hot B- and A-class stars around bright star Mirfak on January 10.
Jan 05, 2023
Photo of the Week inspired by ‘Stranger Things’
Steve Leonard drew inspiration for his Elephant’s Trunk Nebula from the hit TV show on Netflix.
Dec 09, 2022
The Latest
Supernova remnant and SH2-216, by Bill Batchelor
Bill Batchelor won Photo of the Week for the period of Jan. 7-13, 2023.
Jan 24, 2023
The Wizard Nebula, by Steve Leonard
Steve Leonard won Photo of the Week for the period of Dec. 31, 2022 to Jan. 6, 2023.
Jan 24, 2023
Canada to promote commercial space launch industry
The federal government plans to develop a new regulatory framework for this emerging sector.
Jan 23, 2023
Mars in Opposition, by Oleg Bouevitch
Oleg Bouevitch won Photo of the Week for Dec. 24-30, 2022, and Kimberly Sibbald’s “Noctilucent Clouds with Aurora” received an honourable mention.
Jan 20, 2023
Milky Way survey reveals billions of celestial objects
It is the largest such catalog ever produced from a single camera, “in terms of the number of objects observed,” according to researcher Andrew Saydjari.
Jan 19, 2023
This Week’s Sky: January 23-29
The Moon takes centre stage this week — joining the Venus-Saturn conjunction, passing Neptune and Vesta, sharing a view with Jupiter and Juno, and shining close to Uranus.
Jan 19, 2023
Explore the current issue
- 01. Top 10 sky events of 2023
- 02. Artemis missions an opportunity for Canada
- 03. In search of hidden treasures
- 04. Venus emerges in the evening sky
- 05. Winter bino tour
Observing
Top 10 sky events of 2023
Three major meteor showers, including the Perseids, arrive with the Moon mostly out of the way this year.
Dec 23, 2022
More satellites, more problems
The number of active satellites in orbit (as of November 4, 2022 at 16:05:27 UTC) is 6,843 — 3,273 of which are Starlink units, up from 1,655 on September 1, 2021.
Dec 19, 2022
All eyes on Ontario’s bright fireball
Astronomers and NASA had their eye on 2022 WJ1, a small asteroid on a collision course with Earth.
Nov 23, 2022
MAVEN eyes two types of aurorae above Mars
NASA’s MAVEN observed two different types of ultraviolet aurorae simultaneously.
Nov 22, 2022
About the Royal Astronomical Society of Canada
The Royal Astronomical Society of Canada (RASC) began as the Toronto Astronomical Club on December 1, 1868. The eight men who gathered to share their interests were not professional astronomers, just working-class citizens with a passion for astronomy.
