Dunlap Observatory(@Dunlap_Obs) 's Twitter Profileg
Dunlap Observatory

@Dunlap_Obs

88yr-old Observatory, Largest Telescope in Canada. Property of City of Richmond Hill. @RASCTC volunteer account. https://t.co/FdenmmDcZx

ID:15005644

calendar_today04-06-2008 14:44:50

19,0K Tweets

2,7K Followers

1,4K Following

Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Astronomy Family Night
Fri, May 24, 9:30-11:30 PM, DDO
Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope.
anc.ca.apm.activecommunities.com/richmondhill/a…

Astronomy Family Night Fri, May 24, 9:30-11:30 PM, DDO Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope. anc.ca.apm.activecommunities.com/richmondhill/a…
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RASC National(@rasc) 's Twitter Profile Photo

Submit your eclipse photos for the RASC Calendar by April 30th!
The RASC Calendar team has extended the deadline for photos of the April 8th solar eclipse! Submit your eclipse shots for consideration in the 2025 Observer's Calendar. Details: rasc.ca/calendarsubmis…

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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Sunday Sungazing
Sun, May 26, 12:30-1 PM, DDO
Safely observe the sun with us! Views of the sun will be included, weather permitting.
anc.ca.apm.activecommunities.com/richmondhill/a…

Sunday Sungazing Sun, May 26, 12:30-1 PM, DDO Safely observe the sun with us! Views of the sun will be included, weather permitting. anc.ca.apm.activecommunities.com/richmondhill/a…
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Planetarium Day
Sat, May 25, 1-2:30 PM, DDO
Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer. Afterward, you are welcome to take a self-guided observatory tour.
anc.ca.apm.activecommunities.com/richmondhill/a…

Planetarium Day Sat, May 25, 1-2:30 PM, DDO Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer. Afterward, you are welcome to take a self-guided observatory tour. anc.ca.apm.activecommunities.com/richmondhill/a…
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Planetarium Day for Little Astronomers
Sat, May 25, 11:30AM-12:15 PM, DDO
Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer. The shorter format is ideal for little astronomers.
anc.ca.apm.activecommunities.com/richmondhill/a…

Planetarium Day for Little Astronomers Sat, May 25, 11:30AM-12:15 PM, DDO Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer. The shorter format is ideal for little astronomers. anc.ca.apm.activecommunities.com/richmondhill/a…
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Astronomy Family Night
Fri, May 24, 9:30-11:30 PM, DDO
Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope.
anc.ca.apm.activecommunities.com/richmondhill/a…

Astronomy Family Night Fri, May 24, 9:30-11:30 PM, DDO Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope. anc.ca.apm.activecommunities.com/richmondhill/a…
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Astronomy Family Night
Sat, May 18, 9:30-11:30 PM, DDO
Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope.
anc.ca.apm.activecommunities.com/richmondhill/a…

Astronomy Family Night Sat, May 18, 9:30-11:30 PM, DDO Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope. anc.ca.apm.activecommunities.com/richmondhill/a…
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Tour the RHDDO, Doors Open Richmond Hill
Saturday, May 11, 9:30AM-4PM, @ DDO
Join Heritage Services for a tour of our historic observatory and administration buildings.
eventbrite.ca/e/tour-the-rhd…

richmondhill.ca/en/find-or-lea…

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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Event title: Sunday Sungazing
Date and time: Sun, Apr 28, 12:30-1 PM, DDO
Description: Safely observe the sun with us! Views of the sun will be included, weather permitting.
anc.ca.apm.activecommunities.com/richmondhill/a…

Event title: Sunday Sungazing Date and time: Sun, Apr 28, 12:30-1 PM, DDO Description: Safely observe the sun with us! Views of the sun will be included, weather permitting. anc.ca.apm.activecommunities.com/richmondhill/a…
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

On February 12th, 1946 Helen Sawyer Hogg reported at the RASC Toronto Centre meeting about the outburst of T CrB that week, later published in the Journal of the RASC National articles.adsabs.harvard.edu/full/1947JRASC….

On February 12th, 1946 Helen Sawyer Hogg reported at the @RASCTC meeting about the outburst of T CrB that week, later published in the Journal of the @rasc articles.adsabs.harvard.edu/full/1947JRASC….
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

February 1946: The Journal of the @RASC note about the recent outburst of T Coronae Borealis ui.adsabs.harvard.edu/abs/1946JRASC.…

February 1946: The Journal of the @RASC note about the recent outburst of T Coronae Borealis ui.adsabs.harvard.edu/abs/1946JRASC.…
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Dunlap Observatory(@Dunlap_Obs) 's Twitter Profile Photo

Astronomy Family Night
Fri, Apr 19, 9-11 PM, DDO
Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope.
anc.ca.apm.activecommunities.com/richmondhill/a…

Astronomy Family Night Fri, Apr 19, 9-11 PM, DDO Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities and a demonstration of the 74” telescope. anc.ca.apm.activecommunities.com/richmondhill/a…
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Ontario Science Centre(@OntScienceCtr) 's Twitter Profile Photo

This just in–our Star Party⭐️🎉 is BACK!

Join us on April 20 from 8-11 p.m. to experience a Star Party with the RASC Toronto Centre . Tour the night sky through a telescope as you search for star clusters, galaxies, and maybe even a shooting star!

See you there 👉 bit.ly/4cYwIeX

This just in–our Star Party⭐️🎉 is BACK! Join us on April 20 from 8-11 p.m. to experience a Star Party with the @RASCTC . Tour the night sky through a telescope as you search for star clusters, galaxies, and maybe even a shooting star! See you there 👉 bit.ly/4cYwIeX
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Yerkes Observatory(@yerkescosmos) 's Twitter Profile Photo

Worthy of an album cover. Yerkes astronomer William Wilson Morgan (standing) and Armin J. Deutsch (seated) are shown here examining astronomical data. They appear to be in deep focus…best not to disturb them. 🤫

Worthy of an album cover. Yerkes astronomer William Wilson Morgan (standing) and Armin J. Deutsch (seated) are shown here examining astronomical data. They appear to be in deep focus…best not to disturb them. 🤫
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