Category Archives: Observing

What’s Up For August

A great month of sky watching! I will save you the trouble of running to your calendar, 12 August is on a Friday. I plan on taking the day off work to allow for a nap so I can get up extra early for the showers. I will be trying out a new reclining chair I am getting for the occasion. If I can find a screen filter for my phone or tablet so I don’t ruin my night vision I might see who is doing the same on Twitter. Rain of course will change everything.

The video mentions the Perseid Double Cluster; it is one of the most beautiful sights in the sky especially with binoculars or a small telescope.

Have a Look at Mars

If you’ve noticed Mars getting brighter and possibly larger, that’s because Mars is only 47 million miles away.  Tonight is the closest we will get, but no worries if your sky is cloudy it will remain pretty bright for a while.

The finders chart is at 23:50 (your local time) and is based on the northern hemisphere.

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See the Blue Moon

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Today at 21:14 UTC / 17:14 ET the moon will be full and that will make it  a blue moon.

No this isn’t the second full moon in a calendar month, but it will be third full moon in an astronomical season with four full moons.

Yes that is the “other” definition of a blue moon, so be sure to have a look.  You won’t see another until 2019.

No the moon won’t actually be a blue color, in fact if you are in eastern Canada or portions of the US the moon might look red (it did this morning) thanks to the terrible wildfires in eastern Alberta Canada.  Terrible for the people of Fort McMurray.

If the moon isn’t really blue then why the name?  Good question.  The Online Etymology Dictionary has it from 1821 as a specific term in the sense “very rarely” and perhaps as far back to 1528: “Yf they say the mone is blewe, We must beleve that it is true.”

Image: timeanddate.com

 

Mark Your Calendars

On 09 May 2016 there will be a transit of Mercury.  Will you be able to see it?  Check here.  If it happens you are not able to view it, don’t worry there will be plenty of on-line sources, some of which I will post before hand.

Even if you do live in an area where the the transit is visible DO NOT LOOK AT THE SUN DIRECTLY WITHOUT THE AID OF A SAFE SOLAR FILTER. 

Science@NASA put up a nice video with all the details:

Video

The Cassini Division

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The Cassini site has a labeled picture here you might find helpful.

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Keep an eye out for local Yuri’s Night Celebrations, you probably have one near you (no matter where you are and it’s a good bet a scope will be on Jupiter and/or Saturn.  Both are so worth the look if you’ve never seen them for yourself, especially Saturn – it is dazzling!

From the Cassini site:

It’s difficult to get a sense of scale when viewing Saturn’s rings, but the Cassini Division (seen here between the bright B ring and dimmer A ring) is almost as wide as the planet Mercury. (See PIA11142 for a labeled panorama of features in the rings.)

The 2,980-mile-wide (4,800-kilometer-wide) division in Saturn’s rings is thought to be caused by the moon Mimas. Particles within the division orbit Saturn almost exactly twice for every time that Mimas orbits, leading to a build-up of gravitational nudges from the moon. These repeated gravitational interactions sculpt the outer edge of the B ring and keep its particles from drifting into the Cassini Division.

This view looks toward the sunlit side of the rings from about 4 degrees above the ring plane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Jan. 28, 2016.

The view was acquired at a distance of approximately 740,000 miles (1.2 million kilometers) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 76 degrees. Image scale is 4 miles (7 kilometers) per pixel.

April Skies

The month as opened with very nice skies, a bit cold in the mornings at -15 C. Despite the cold start April will feature at least a few (much) warmer conditions. I’m going to order a couple new of those reclining lawn chairs, and will enjoy the spring skies at a new location.

Video

Penumbral Lunar Eclipse

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There is a Penumbral Lunar Eclipse tomorrow (23 March 2016).  Will you be able to see it?  Check out map.  Europe and Africa are pretty much out of luck for this one.

Most of North America can see this at moon set (look west) and Asia look at moon rise.

This is not a total eclipse but you should see some nice color to the moon.

Here is more from NASA.

The UK Fireball

Fireballs are spectacular and this is a good time of year to see them. This particular fireball was reported to the American Meteor Society 45 times mostly from the UK with reports from France and the Netherlands as well.

The AMS website is a great place to look around and if you see a fireball you can leave a report.

Video