The August 2017 solar eclipse will be special, I’m sure the media coverage has repeated it often enough. While there is a solar eclipse about every year, it often happens over open ocean or remote places. The fact that the August 2017 event will sweep across all of the continental United States, where millions will be able to simply look up by heading outdoors, many with easy access to digital cameras and social media to share is what makes it special.
However, if you’re bummed that you won’t be able to witness the total solar eclipse because you’re not in the right spot, fear not! It will happen again… in 7 years.
Mark April 8th 2024 in your digital calendar. On the map below, the red line will be the best view, the center of the Moon’s shadow. However any spot between the blue lines will get a total solar eclipse. A different group of States will be the lucky ones this time around. And while the folks in Toronto and Ottawa just falls outside, a short drive will easily get you to a better viewing location.
April 8th, 2024 Eclipse Path
So don’t throw away those solar safety glasses you will need them again in 2024. Besides, you can use them every day to track sun spots!
With a week left before the August 21st solar eclipse, some of you may be scrambling to find eclipse viewers to safely view the event. Stores appear to be running out of the necessary viewers and ordering online may not make it in your hands on time. Also there are reports of poor and unsafe gear being sold on the internet, so do the proper research before ordering. Both NASA and the American Astronomical Society (AAS) only recognize five manufacturers as meeting the necessary ISO standards for solar safety film, these are: Rainbow Symphony, American Paper Optics, Thousand Oaks Optical, TSE 17 and Baader Planetarium.
July/August SkyNews – includes eclipse viewer
One way to get your hands on eclipse viewers is to find a copy of the July/August SkyNews magazine. The issue not only has great articles how to prepare, observer and photograph the eclipse, but it comes with a free eclipse viewer.
Alternatively you can join one of the observation parties hosted by astronomy clubs, colleges, museums or stores. Here is a list from the Royal Astronomical Society of Canada of cities hosting observing events.
Yesterday, even if I’m located in the light polluted Montreal suburb, I decided to head out at quarter to midnight to see if I could by chance spot one or two bright meteors from the Perseids shower. As luck would have it in the 15 minutes doesn’t looking around Cassiopeia I spotted two before clouds and a rising moon sent me indoors.
But during that time scanning and waiting, it got me thinking… It took me a good minute to find a suitable spot in my backyard free of the light from the neighbours’ houses and street lights. If there was less light pollution we could have darker skies and everyone could enjoy the show.
During Earth Hour people are asked to turn off the lights for one hour to support the fight for climate change. But I always found that pretty pointless. If you want to fight climate change, it’s an every day affaire, in your daily routine and the choices you have as a consumer, not one hour in an entire year. So the one hour lights out is more of a gimmick, doesn’t really benefit anyone. But if we had an evening of lights out during the peak of the Perseids meteor shower wouldn’t that be great!
The Perseids falls in August when it’s warm and sitting outside past sunset in the cooling air is enjoyable. Kids don’t have school so they can stay up late. And the patio furniture is out, that’s all the required equipment.
So what do you say? Light out for the 2018 Perseids? I think that’s a worthwhile collective movement.
The Perseid meteor shower is scheduled to peak tonight, but a large Moon will ruin the show. The best time is tonight (August 12) after 11pm, looking north-east.
While the sky directly overhead may look darker, it’s better to look 45degrees over the horizon to see a thicker “slice” of the atmosphere.
On April 19th a considerable sized asteroid will pass about 4.6 lunar distances (1.8 million km) from Earth. While there is no chance of it impacting our planet, this 650m asteroid was only discovered three years ago, and it will be the closest encounter of a large asteroid since asteroid Toutatis in September 2004. The next predicted fly-by of a large asteroid is 2027 with 800m wide 1990 AN10.
The expected magnitude could reach up to 11 during the close approach, hence a decent sized scope will be required, and due to the rapid movement may be hard to locate and track.
Sky chart for asteroid 2014 JO25 covering April 18th to 20th 2017
And as a bonus, comet PanSTARRS (C/2015 ER61) will also make its closest approach to Earth on the 19th, but 10 times farther away as the asteroid. I should be visible with small telescopes or binoculars in the constellation Aquarius in the dawn sky.
This weekend is the best time to see Jupiter of all 2017, because the planet is at opposition, meaning it is exactly opposite to the Sun and the Earth-Jupiter separation is also at its closest.
The photo below was taken during the September 2010 event and I happened to fall upon a fantastic low turbulence window in the atmosphere. Look closely and you’ll see the shadow of one of those moons on the Jupiter’s surface.
Jupiter – Benoit Guertin
Photos of Jupiter with the moons are a little tricky. Capturing the smaller moons require more exposure or gain, but at the risk of over-exposing the planet and turning Jupiter with those wonderful cloud bands into nothing more than a white sphere. It is always better to take a series of images or videos with different settings and review them at a later time on the computer. Some information on planetary imaging and processing is provided in my blog on imaging with a webcam.
Planetary imaging is all about controlling turbulence. Air turbulence whether within the optics, telescope, near the ground or high atmosphere will give you a blurry view. Hence some simple tips are:
- Allow your equipment to cool down a few minutes such that the equipment temperature can stabilize and match the outdoors.
- Past midnight is better as this allows time for the ground to cool especially after a sunny afternoon, reducing convective currents.
- Wait until Jupiter is high in the sky, that way there is less atmosphere between you and Jupiter. By looking straight up, you will be looking through a smaller “air column”.
A good time will be on April 10th when the Moon will next to Jupiter. See the sky chart below showing the southern part of the sky at 10pm EDT. The planet will track west as the night advances.
April 10th 2017 Sky Chart
Great photo opportunity tomorrow evening, January 31st, with a thin crescent Moon in a close formation with Mars and Venus. As the sky darkens simply look between South-West and West and you won’t miss them. However don’t wait too late, by 9pm they will have disappeared below the horizon.
Early Evening Sky (7pm) – Look WSW for this close formation
The Moon will be a thin crescent. Here it is as photographed of the Moon tonight at 5:40pm just a little less than 3 days old.
Crescent Moon – 30-JAN-2017 (5:40pm)
No high-resolution photo for this one. Took it quickly through an open window simply by hand-holding the telescope, and using Venus to quickly find focus through the camera view-finder.
Canon XTi (1/50s at ISO400)
Registax6 to align, stack and wavelet on the best 3 frames (out of a dozen)