The latest issue of our club’s Event Horizon newsletter is now available.
In this issue you’ll find…
If the weather permits we will be observing at Binbrook at our normal viewing site on the hill. In an effort to entertain the fishermen that will be coming out for a early start for the Sunday morning derby . If you can attend identify yourself at the gate as an H.A.A member and drive to the hill location. Hopefully we will get a good sky I hope to see you there.
Rory Woods will be speaking about welcoming our computer overlords in astronomy. Our society has seen computers become an important aspect in almost every facet of life. Within astronomy, computers are used to control our telescopes, process and analyze our images, and even create entire new (simulated) universes of our own. With every passing year simulations become more sophisticated as they increase in size, resolution, and physical detail, allowing us unique views into any possible history our Universe might have had.
This talk will give an overview of computers in astronomy. I’ll focus on the need for computing in observational astronomy and then on the history of astrophysical simulations. I’ll talk about some of the limits and challenges we face with trying to represent our Universe in a computer, and show some of the failures and successes we’ve had in doing so. I’ll finish by talking about the most recent, cutting edge simulations and about my own research in computational astrophysics.
Rory Woods is a PhD student at McMaster University as well as a presenter at the McCallion Planetarium and the Origins Institute 3D Theater. His research is on computational methods in astrophysics and is applied to galaxy formation.
A couple weekends ago we were treated to what feels like an unprecedented couple nights in a row of clear sky. Not able to pass up the opportunity I setup my scope in the backyard to take advantage of three planets currently visible in the evening sky. First up, just after sunset Jupiter is visible in the Western sky trailing the Sun. After a little polar aligning and calibration of my scope I slewed over to Jupiter in order to capture a few frames of video. Next up was Mars which is visible rising to the East. With April nights still cool and damp dew was starting to settle on the objective so I slapped on my dew buster, let things clear and started capturing video of Mars. As the evening wore on Saturn began to rise just after midnight. At this point the seeing was starting to get a little undesirable as Saturn could be seen jumping wildly around on my laptop screen. Nevertheless I proceed to capture video of Saturn. After some software stacking and a little tinkering here are the results of that nights observations.
Here’s an interesting upcoming Astronomical event you may wish to try to take in. In the early hours of Thu 20 March 2014, an asteroid will pass in front of the bright star Regulus (mag 1.2). This is called an occultation when one object pass in front of another (we also use the term “eclipse” for things like the Moon or Sun).
The cool thing is that this is going to happen fairly close to us in the Hamilton area. Of course this is dependent upon whether the skies are going to be clear or not.
At any time of year spectacular solar and lunar halos may appear in the sky, but this time of year is particularly good. No special equipment is needed to observe these beautiful sights, but care must be taken as solar halos appear around the sun. Remember to always use proper precautions when observing near the sun.
This image was taken a couple of days ago in front of my house. I have exaggerated the contrast of the image to better show the detail in the sky, however these phenomena are easily seen with the unaided eye. Keep an eye out for halos, sun and moon dogs, arcs and other atmospheric phenomena during the upcoming season.
Hi, just saw news of a mag 11 nova in m82. Could get as bright as mag 8 over the next few days. I know its darn cold outside, but if anyone can image it, I would be happy to show it to the club next month.
Matthew
John Dobson, whose name has become synonymous with large, easy to use telescopes, has passed away at the age of 98. He started building large reflectors with alt-az mounts on them for the purpose of taking them to the streets and sharing views of the night sky with passers-by. He not only pioneered the concept of sidewalk astronomy, but of course we now refer to this style of telescope as a Dobsonian. These scopes were easy to make and used inexpensive materials, making large apertures achievable and affordable for many amateurs. Few other individuals have had such great influence on the world of amateur astronomy.
I had the pleasure of meeting him a few years ago, and he was still vigorous and invigorating. I know that the other HAA members who had the same pleasure also found him to be quite a character, even well into his 90s. A club like ours, which does so much outreach, is a fitting legacy to Dobson, along with the many scopes that bear his name, that so many of us use.
Although the sun is at solar max, and has finally flipped its magnetic poles, it hasn’t felt like there’s been too much solar activity. Now, finally, we have a big sunspot grouping. AR1944 has not only been active, but is large enough to be seen with the naked eye. Remember, always use appropriate solar filters when observing the sun. I could see the spots naked eye, using my Baadar mylar solar material, and through my 90mm refractor it looked quite spectacular. Unfortunately the seeing today was terrible, producing wavy images, but I did manage to get an image through the scope. Here it is below, with a second one showing a blow-up of the largest group. If you have a solar filter, don’t miss this magnificent sunspot grouping. It’s the best we’ve had so far this solar cycle.
Halton Arp, an American astronomer and creator of the Arp catalogue, passed away on December 28th. He imaged and created a database of galaxies that didn’t fit any of the recognized galaxy types, creating a catalogue of unusual galaxies. Published in 1966 it is called the ‘Atlas of Peculiar Galaxies’ and you can still get a copy of the catalogue, which is still in print. It makes for fascinating reading, and gives you some fun targets for your scope.
