Archive for the ‘Astronomy Talk’ Category

March Meeting

Saturday, March 12, 7 p.m.
Avonport, 475 Bluff Road

Speaker: Roy Bishop

Roy Bishop and Larry Bogan founded MAG over 21 years ago, in November 1994. Roy has had a keen interest in astronomy since childhood, although he has never taken a course in the subject. His formal background is in physics.

Topic: A Matter of Some Gravity

One hundred years ago Albert Einstein presented his General Theory of Relativity (GTR), a description of gravitation that replaced Newton’s theory of 1687. The GTR is the foundation of modern cosmology, the study of the nature and structure of the Universe. Besides giving a revolutionary insight into the nature of gravity, and being essential for GPS navigation, the GTR predicts the existence of gravitational waves. Almost 40 years ago indirect evidence for gravitational waves was found in the orbital decay of a binary pulsar. About the same time, apparatus to possibly detect gravitational waves directly began to be built. These detectors have become increasingly more sensitive as designs and technology have advanced. Success occurred late last summer. After traveling for more than a billion years, on 2015 September 14 at 06:50:45 ADT a burst of gravitational waves passed through Earth. You did not feel them but two detectors in the USA did, opening a new branch of astronomy. That discovery was announced last month, on February 11. As the Canadian reporter Ivan Semeniuk put it: “After countless generations of living in silence on the shores of a vast and restless cosmic ocean, the human species can finally hear the surf.”

February Meeting

Minas Astronomy Group –– February Meeting

Saturday, February 13, 7 p.m.
475 Bluff Road in Avonport

Speaker: Paul Gray

Paul is the president of the Halifax Centre of the Royal Astronomical Society of Canada, and is an experienced observer. This will be the 5th time Paul has spoken to MAG.

Topic: The Great American Eclipse!

In 2017 the shadow of the Moon will cross the lower 48 of the United States of America from the Pacific to the Atlantic. The last time that happened was in 1918! This will be the first eclipse of modern times for which millions of people across both the USA and Canada can simply drive to the path of totality during the warm summer vacation period. An event that many of us have not seen, a total eclipse of the Sun is often ranked as the top astronomical event anyone can witness, ranking 10 or 11 on a scale of 1 to 10. In this talk, Paul will look at the weather prospects, logistics and risk of becoming a chaser of the Moon’s shadow on August 21st, 2017. Where will you be?

January Meeting

Saturday, January 9, 7 p.m.

Avonport, 475 Bluff Road

Speaker: Melody Hamilton (and as Melody told Roy a few days ago: “Remember that you are going to do part of the presentation”)

Topic: Brown Dwarfs

Brown Dwarfs are not stars, planets, asteroids, meteorites, comets, small dark nebulae, or height-challenged individuals having lots of melanin. Several are quite close to the Solar System. Melody has offered to tell us what they are.

Nova East 2015

Date: August 14-16  Friday, Saturday, Sunday

Place: Smiley’s Park

Information and Registration: http://halifax.rasc.ca/ne

Guest Speaker: Alan Dyer – Friday night and Saturday

Public Observing Saturday night, Astronomy Auction Saturday afternoon

June 2015 Meeting

Saturday, 13 June at 7 pm

475 Bluff Road, Avonport, N.S.

Topic: TBA

Last meeting until September – an exensive “What’s Up this Summer” will be presented by Roy Bishop.

May Meeting on 9th

Saturday, May 9, 7 p.m.
Avonport, 475 Bluff Road

Speaker: Sherman Williams

Topic: Celestial Demos & Misconceptions

Summary:
Sherman has a lifetime of teaching experience, including introducing young people to features of the sky that most people never notice. In recent years he has given numerous presentations to students in the education program at Mount St. Vincent University. Sherman will demonstrate a few of those presentations and describe some common misconceptions he has encountered concerning the Sun and the night sky.

If that parking lot is full when you arrive, park next door (#465) and take the path that begins next to the garage. Bring a flashlight, as it will be dark when you return to your car.

February Meeting

Speaker: Paul Gray
This Saturday, February 14, 7 p.m.
Avonport, 475 Bluff Road

Topic: 20 Years of Supernova Hunting

Summary:
In 1994 two amateur astronomers from Nova Scotia decided to compete with the professional observatories and hunt for supernovae. At a time when only a few dozen had ever been found by amateurs and none had been found from Canada, it was no small task and would be the beginning of a long and eventful journey, both technological and involving a growing family. What started as a simple idea to find a supernova turned into a grand journey. Paul will highlight much of this during the talk and bring us to current day through what is considered to be the golden age of amateur astronomy.

January meeting cancelled

December Meeting

Saturday, December 13, 7 p.m.
Avonport, 475 Bluff Road

Speakers: Larry Bogan & Roy Bishop (they started MAG, 20 years ago!)

Topics:

Larry: Gould’s Belt
Roy: What’s Up & Commentary on a Variety of Images

Note
If the main parking lot is full when you arrive, park next door (#465) and take the path that begins next to the garage. The path will be illuminated (dimly) with a variety of Christmas lights.

The earliest sunset of the year occurred Tuesday (December 9).

November Meeting

Speakers: Cathy LeBlanc & Dave Chapman
Topic: In Search of the 13th Mi’kmaw Moon

t = This Saturday, November 8, 7 p.m.
R = Avonport, 475 Bluff Road

Summary:
Longtime RASC member Dave Chapman is teaming with Acadia First Nation member Cathy LeBlanc to present “In Search of the 13th Mi’kmaw Moon.” (Cathy is also a seasonal cultural interpreter at Kejimkujik National Park and National Historic Site.)

This presentation is a progress report on a joint project by Cathy and Dave to investigate the traditional time-keeping customs of the Mi’kmaw nation, before contact with Europeans. Much of this knowledge—handed down by oral tradition—has been lost over the ensuing four centuries. Today, thanks to research by Cheryl Bartlett and others at Cape Breton University, the names of the moon-times have been resurrected and applied to the 12 months of the Gregorian Calendar—but there is more to the story!

In this talk, Cathy and Dave will present what they have discovered so far, using a research method known as “Two-Eyed Seeing,” whereby the traditional teachings guide the astronomical investigation and the astronomical facts are used to interpret the traditional teachings. This joint presentation by Cathy and Dave is sure to be memorable—don’t miss it!

Note
If the main parking lot is full when you arrive, park next door (#465) and take the path that begins next to the garage. Bring a flashlight to help illuminate the path.

Roy  will have the 2015 Natural History Calendar (Blomidon Naturalists
Society) at Saturday’s MAG meeting.

The calendar has a complete tide table for Minas Basin (times and
ranges), astronomical highlights for the year, and much more
information. Produced in Nova Scotia by volunteers, all $ received
support the Blomidon Naturalists Society. Calendars are $15 per copy.
Buy one for yourself, and a few more as unique Christmas gifts.

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