Meteorite Identification

Every once in a while, the physics department get contacted to see if we can help someone identify a possible meteorite on PEI. I’m putting this post up on our site for reference for the next time someone asks. While I’m interested in Geology and rocks, I am by no means an expert myself.  A geologist is trained in rock type identification, but UPEI doesn’t currently have a geologist as part of its staff or faculty. An astronomer or astrophysicist may also learn how to distinguish between rocks and meteorite fragments (asteroids when in space, meteorites when they land on earth).

There are about 50,000 identified meteorites on Earth right now, most pebble to fist-sized, but most asteroids heat up, fragment and then break into very tiny pieces in the Earth’s atmosphere. Many, many thousands of tons (amount varies depending on source) of material from space lands on the Earth each year, but most of it is in “dust” size or microscopic. Luckily for people and animals, larger asteroids hitting the Earth are more rare and can cause serious damage when they hit. (Source = NASA).

There must be huge numbers of meteorite fragments that are unidentified in the world, but the problem is in both finding it AND recognizing it.

To my knowledge, there’s never been a meteorite found and identified on PEI, but that doesn’t mean it won’t happen. There’s been quite a few people that have found small to larger pieces of plant fossils on PEI (can be dark brown to black, shiny, with grooves and curved ridges) or smaller dark heavier pieces of rocks that are magnetic to some degree.  Most commonly, both types are due to minerals forming in a depression and then being weathered later.  E.g. hematite or magnetite — these can attract magnets.

Good sites with a fair number of pictures of meteorites and non-meteorites as well as tests you can perform at home to determine if you’ve found a meteorite can be found are:

  1. Geology.com (nice overview of both identification but also many other aspects of meteorites.)
  2. MeteoriteIdentification.com(some information about tests, good pictures about results, some dead links but an excellent youtube video interview with Randy L. Korotev that gives a lot of examples and close-ups)
  3. Aerolite Meteorites (sell meteorites and have some nice pictures for comparison).

The problem with doing a google search for meteorites and then saying “that looks like my find!” from the images is that people upload pictures of what they think are meteorites and identify them as such, so you will see examples of “meteorite-wrongs” in there as well.

If you like meteorite hunting, rock hunting, fossil hunting or just exploring, keep going, but realize that the surface sandstone rocks of PEI back to the Permian era (about 250-300 million years ago) so the land you’re walking on pre-dates dinosaurs!  (Sources: ROM and Paleontology Portal). Fossils from smaller animals are also harder to identify, so you’re more likely to find some plant fossils, trackways from early reptiles, etc than a meteorite or animal fossil on PEI.

  • Matt Stimson and Danielle Horne found a great trackway in 2013 and their find, with an excellent picture was written up by the CBC.
  • A CBC news article on the fireball seen March 18, 2014 over the Maritimes and parts of Quebec, gives description of the siting and says the the only confirmed Maritime-found meteorite was found in New Brunswick, in 1949.

Good luck and have fun searching!

Lisa Steele

July 12/13 Viewing — Canceled

UPDATE July 9th: Due to a couple different factors, we are canceling the viewing set for this weekend.  We apologize for any inconvenience.


The next public viewing is scheduled for Saturday, July 12 from 9:45-11:00PM. If the weather is unsuitable on that date, we will try to re-schedule the viewing on Sunday, July 13 at the same time.

This viewing is scheduled at a later hour and with a shorter duration because the sun is setting quite late as we have recently passed the summer solstice.

Everyone is welcome to attend public viewings.  To do so, meet in Memorial Hall in room 417 and you will be guided up to the observatory when it is available.  It is necessary to climb the stairs one floor up to the observatory, however the elevator can be taken up to the 4th floor before doing so.

Public viewings are co-hosted by the UPEI Physics Department and the Charlottetown Centre of the Royal Astronomical Society of Canada (RASC).

Free (Older) Astronomy Books

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I’ve been doing a bit of an office clear-out and would like to get rid of some of the extra astronomy texts that are taking up shelf space. Some of these books are a few years old, some are relatively new, but all go over the basics of astronomy and often cosmology.

So if you’re interested in learning more about the night sky, our solar system, or other galaxies and beyond, come to the UPEI campus and pick up a book. I’ve piled them up in a stack outside my office, Duffy Science Centre room 415, so you can come by at any time whenever the building is unlocked (i.e. weekdays from very early to very late, sometimes on weekends).

UPDATE: June 15 Viewing Cancelled

UPDATED: The forecast for the evening of Sunday, June 15 is no better than it was for Saturday evening, so the rescheduled viewing will also have to be cancelled. Hopefully conditions will be better next month in July so our viewing can go ahead then!

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This viewing is scheduled at a later hour and with a shorter duration because, of course, the sun is setting later and later as we approach the summer solstice so we are having fewer hours of darkness suitable for astronomical viewings.

Everyone is welcome to attend public viewings.  To do so, meet in Memorial Hall in room 417 and you will be guided up to the observatory when it is available.  It is necessary to climb the stairs one floor up to the observatory, however the elevator can be taken up to the 4th floor before doing so.

Public viewings are co-hosted by the UPEI Physics Department and the Charlottetown Centre of the Royal Astronomical Society of Canada (RASC).

Found an old telescope! (UPEI’s first telescope?)

What happens when the laboratory technicians are assessing the equipment in the physics storeroom and notice a long wooden box on the top shelf? 003

They open up the box and find a telescope.

002It may seem strange to not know that we had this telescope, but a combination of changing astronomy instructors with a departmental move (that causes equipment to end up in new unknown locations) can result in an item getting forgotten.

This telescope is a 6-inch Newtonian reflector. I’m not sure how old it is – it sort of has a ’70s look to me. Perhaps this was the first telescope that UPEI Physics had in the 1970s, when observations took place on the roof of the Duffy building. It does have homemade replacement dust covers, which would fit with the story of how the original dust covers blew off the roof during a windy observation session.

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The telescope was made by Anchor Optical Co. which now seems to exist as Anchor Optics (a division of Edmund Optics) that makes specialized lenses for research and educational applications.

 

Given the telescope’s size, it should be great for field work. We have material to build a solar filter, so this will probably also become our solar telescope.