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Chris Vaughan

@astrogeoguy

I'm an astronomer, geophysicist, and nerd with a passion for public outreach and education #STEM and a #Starlab mobile planetarium! Author of weekly #Skylights and monthly astro-events for http://Space.com and your favorite astronomy app. #scifi (he/him)

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18.11.2024
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Latest posts by Chris Vaughan @astrogeoguy

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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Fred Espenak) astrogeo.ca/planets-depa...

08.03.2026 23:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

07.03.2026 21:22 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

#LunarEclipse FAQ:

Q: Is it safe to look at?
A: Absolutely! Unlike a solar eclipse, there's no UNsafe time to look at a lunar eclipse.

Q: Do I need a telescope?
A: Nope! Best view is with naked eye. Just look up!

Q: Does the eclipse portend terror & doom?
A: Not at all! The news has that covered.

02.03.2026 19:22 πŸ‘ 1301 πŸ” 406 πŸ’¬ 29 πŸ“Œ 16
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Michael Watson) astrogeo.ca/planets-cloc...

01.03.2026 21:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

28.02.2026 15:15 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The Waxing Moon Joins Jupiter in Gemini, Post-Sunset Planets Assemble, and Planet Naming Notes! – AstroGeo The horns of the waxing crescent moon pointing upwards at dusk in the springtime. Image by Michael Watson of Toronto.

#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Michael Watson) astrogeo.ca/the-waxing-m...

22.02.2026 23:57 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

21.02.2026 20:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

There's a Hindu festival to Shiva underway. Maybe that?

21.02.2026 12:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Andrea Girones) astrogeo.ca/mercury-at-m...

16.02.2026 00:23 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

14.02.2026 16:55 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Steve Cannistra) astrogeo.ca/jupiter-is-s...

08.02.2026 23:35 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

08.02.2026 14:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Fred Espenak) astrogeo.ca/willie-wishe...

02.02.2026 00:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Chuck Ayoub) astrogeo.ca/mercury-veer...

26.01.2026 00:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

25.01.2026 14:26 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Alan Dyer) astrogeo.ca/the-crescent...

18.01.2026 23:59 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

18.01.2026 15:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (APOD image by Jerry Lodriguss) astrogeo.ca/tour-taurus-...

11.01.2026 18:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

09.01.2026 17:04 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (APOD image by Rick Foster) astrogeo.ca/daylight-inc...

05.01.2026 00:42 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (APOD image by Petr HorΓ‘lek) astrogeo.ca/new-years-pr...

28.12.2025 20:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

28.12.2025 14:48 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I can't see how the LONG term average wouldn't converge on the Saturn-sun mean distance, once all the node processions integrate out. I'd think Jupiter could pull the Earth a wee bit closer to itself, and lower the mean value, but surely not by a percent?

23.12.2025 12:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Kerry-Ann Lecky Hepburn) astrogeo.ca/the-waxing-h...

21.12.2025 22:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

20.12.2025 23:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Stuart Norman) astrogeo.ca/we-switch-se...

14.12.2025 22:46 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Here are this week's best International Space Station flyovers for Toronto and the #GTA. Just look up and see it moving! astrogeo.ca/greater-toro...

14.12.2025 16:27 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Most sources avoid displaying the sunset time to the nearest second, so I used Stellarium for PC to confirm that it's today, visually.

09.12.2025 15:21 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for the Georgian Triangle this week, plus worldwide content. Clear skies! (image by Martin Gembec) astrogeo.ca/an-asteroid-...

07.12.2025 22:09 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#Astronomy #Skylights for this week, with worldwide content. Clear skies! (image by Chris Vaughan) astrogeo.ca/new-telescop...

30.11.2025 23:49 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0