Last Saturday evening, if you happened to look outside and had a clear view there is no way you could miss the Venus-Moon close encounter in the dark blue sky. But just in case it was cloudy, or you weren’t paying attention here it is.
Moon and Venus within 8 degrees on June 16, 2018
For those curious on the camera setting, the above is cropped from a single frame at 33mm f/4.5 1/30sec and ISO800 with Canon 80D.
Moving up to 85mm gives you the image below, also at 1/30sec and ISO800. Both images were hand-held from a bedroom window. Could a tripod have helped? Sure, but I figured I could do just fine , especially with image stabilization enabled on the lens.
Moon and Venus within 8 degrees on June 16, 2018
To put a bit of perspective on the distance of these two heavenly bodies and their apparent size in the sky I’ve added a bit of information on the above image. While Venus may be nearly 4 times larger in diameter, it looks quite small next to the Moon in the sky.
We don’t often look “straight up”. Unless you are laying down, it’s not a comfortable viewing position. However there is lots to see and the Big Dipper (Ursa Major) is right overhead this time of year.
Setting up a camera with a 10 second exposure can capture quite a good deal of the sky, and you don’t have to worry too much about star trails. What stands out is the large variations in the colors of stars, from cooler deep reds, to hot bright blues.
Constellations right above in the May evening.
Canon 80D (ISO 3200)
12 x 10sec (2 minutes)
In one of my previous post I mentioned how Messier 44, the Beehive Cluster, would be an easy find the evening of April 22-23, so even if I took this photo on the 21st, the same evening that I took a photo of the Moon, all I needed was to moved a few degrees north after observing the Mooon to image this large open cluster.
Messier 44 – Beehive Cluster. Benoit Guertin – taken with Skywatcher 80ED and Canon 80D
Photos of open clusters with small refractors always lack the diffraction spikes that really make the stars stand out. So a little photo editing did the trick to spice up the image.
Canon 80D ISO 3200
Stacked 22 x 10sec
The Moon should be the first thing you look at the day you get to peer through a telescope. It should also be the first thing you photograph. However don’t wait for a Full Moon. Sure a large round moon over the horizon can be breathtaking, but most of the subtle details of the lunar surface disappear under a Full Moon. The lack of shadows blends away the peaks and valleys, crevasses and ridges. It is really this dance of light and shadows that makes the craters stand out.
Click on the image below for full resolution.
Lights and shadows….
The photo above is a single shot with Skywatcher 80ED telescope and Canon 80D (ISO 200, 1/125s)
Wavelet analysis with Registax.
After a weeks of clouds, rain and even snow, I finally get a sunny weekend without a cloud in the sky. With the warmer temperatures, time to take the telescope out. Unfortunately no significant sunspot happening on April 21. Just a small region (AR2706) on the western part of the sun.
Canon 80D (ISO 100, 1/400s)
Skywatcher 80ED (80mm F/7.5)
Sun with sunspot AR2706 (21-apr-2018). Benoit Guertin
The second Full Moon in a month is generally called a Blue Moon. And yes the old saying “once in a Blue Moon” is in reference to this rare event. Well… if you consider every 2 to 3 years rare. However this one will be extra special because it won’t be blue at all! It’ll be blood-red because we’ll have a lunar eclipse on our hands!
September 27th 2015 Lunar Eclipse
The lunar eclipse will be visible from most of North America, but people out West will be better placed to see it. In the East, the we’ll only get a partial eclipse as the moon sets in the early morning on Wednesday the January 31st around 6:48am EST.
If you do plan to photograph a lunar eclipse, a tripod is strongly advised, and if you are using a telescope, an equatorial mount is required. The above photo is a single frame at 2.5 second exposure and ISO400 with a Skywatcher 80ED. Yes those are a few stars popping into view during the eclipse.
With the Geminids peaking tonight and a clear sky after two nights of snow, I charged the camera battery and got a quick setup going to take some pictures of the sky. As for any nigh sky photo, both lens stabilizer and auto-focus is set to OFF and focused manually at infinity. Then found a corner of the yard shielded from stray lights and planted the tripod, roughly aiming the camera 70deg up and pointing east (the constellation Gemini was rising at 10pm).
However at -15C outside, the old battery wouldn’t last very long. I left it running for about 30 minutes, taking 20 seconds exposure at ISO 800 with a 17mm F4 lens. The camera is now thawing (covered with frost after bringing it indoors) and will wait until tomorrow before checking the pictures out.
Setup for the 2017 Geminids
In the brief moments that I was outside I caught a 2-3 meteors and one really bright one (easily visual magnitude -4). So even living in the city, the Geminids are visible and accessible to all. With my feet deep in snow I wasn’t dressed well enough to hang around in the cold wind to watch the show for long. So I hope the camera managed to capture a few.