Showing posts with label Venus. Show all posts
Showing posts with label Venus. Show all posts

Thursday, February 26, 2015

Moon/Venus/Mars Conjunction

Clouds. Clouds, clouds, clouds, clouds, clouds, clouds. It's been cloudy lately. A lot. And when it isn't cloudy the humidity is so high you can practically drink the air.

I thought I was going to miss the Moon/Venus/Mars conjunction on February 20, 2015, but the clouds parted just long enough for me to take a few shots. This one is my favorite.

Moon, Venus, and Mars. Venus it the brighter star to the left of the Moon. Mars is the star above and to the right of Venus.
Did I mention that it has been cloudy?

Wednesday, May 29, 2013

Mercury-Venus-Jupiter Conjuction

I finally got a clear shot of the western sky to see the Mercury-Venus-Jupiter conjunction. This will be the closest grouping of these three planets until 2021.

Mercury is the faint "star" near the top-center of the image. Venus is the bright object near the center, and Jupiter is located below and slightly to the left of Venus.

Mercury (top), Venus (center) and Jupiter, May 29, 2013.
I was in the back corner of my yard taking pictures when the sprinklers went off. One sprinkler head was about 10 feet away. Out of it's nearly 360 degree field of rotation, guess exactly where it was pointing when it went off... Luckily the camera only got a glancing blow.

Thursday, June 7, 2012

2012 Venus Transit

On June 5, 2012, the planet Venus passed directly between the Earth and the Sun for the last time until the year 2117. The weather here was favorable for viewing the first half of the transit. It was an amazing sight, and I'm very happy that my family and I got to see it!

Mike Prokosch and I set up our scopes on the grounds on the Texas Prison Museum and invited the public to come see the event. Here are some images that I took with my setup:

Hydrogen Alpha Images:


I used the Coronado PST and Meade DSI camera to capture these images of the Sun in the Hydrogen Alpha wavelength.

Shortly after Contact I.
Right around Contact II.
My personal favorite out of all of the images. Sunspot groups 1493 and 1496 are visible  on the left.
Sunspot 1494 is on the far left.

Full-Spectrum Images:


These image were taken with a Canon EOS Rebel XS (1000D) attached to an Orion ShortTube 80 equipped with a solar filter.



Artsy Images:




Interesting Visitors


The following three images are single frames that captured other items besides the Sun and Venus. The first two show doubles, which gives some insight into how the Meade DSI camera works:  it scans the odd- and even-numbered rows separately, allowing fast-moving objects to show up twice as they move across the field of view. Each of these images has been processed to make the transiting objects appear more solid.

Airplane. The contrails are visible as distortions behind the aircraft.
Bird, located below the sunspot that is near the center, and again to the right and slightly down.
Bird, at center, near the bottom.

Sunset:



Monday, March 12, 2012

Venus/Jupiter Conjunction

Here are some shots of the March 12, 2012 Venus/Jupiter Conjunction. They were behind the trees from most of my yard. I thought they made the trees look a little spooky, like they were watching me...



Saturday, February 25, 2012

Mercury, Venus, Jupiter and the Moon

Tonight, the Moon passed close to Venus. Mercury was right on the horizon, too!

Mercury, Venus, Jupiter and the Moon
Here is a labeled version of the above image:


Meanwhile, in other parts of the sky:

Dark cloud after sunset

High cloud illuminated by the last rays of the sun after sunset, passing in front of the constellations Auriga, Lynx and Ursa Major.

Monday, August 2, 2010

The Planets, Plus One

Planets are tough to image. They are small, require a great deal of magnification, and often require filters to resolve fine details. Neither the ST80 nor the Epsilon-200 are suited for this purpose. The XT6 Dobsonian is pretty good at resolving planetary details visually for Mars, Jupiter and Saturn. There's not much to see when viewing Venus. Well, there is, but I haven't been able to see much.

I've come up with a trick, though, that lets me image some of the planets with my XT6 Dobsonian. Basically, I mount my Canon PowerShot A590 IS point-and-shoot camera afocally to a 9mm eyepiece (133X magnification). Then, I zoom in the camera to the highest optical zoom setting (4X). This gives me over 500X magnification. The target will move across the field of view very quickly. It takes a lot of work to get decent focus and to get the exposure time just right. The results are not outstanding, but hey, it's a cheap solution!

I've managed to image all eight of the planets, plus Pluto. (I'm not getting into a discussion as to whether or not Pluto is a planet!) Some images are simply shots of the sky, and some are close-up. Here they are in order from the Sun:

Mercury and Venus; DSLR on tripod; March 31, 2010
Venus; XT6; February 15, 2009
Because Venus orbits between us and the sun, we can see it go through phases similar to the moon. Venus is brightest in our skies when it is in a crescent or half phase because it is closer to us than at other times.

Earth; Dish Network; October 25, 2009
I meant it when I wrote "all eight planets!" The Dish Network satellite TV service has a channel called Dish Earth. It broadcasts a view of Earth from the Dish Network satellite in geostationary orbit 24 hours a day.

Mars; XT6; March 27, 2010
This image of Mars was taken about two months after the 2010 opposition. The lighter features at the top and bottom of the disc are the polar caps (north is at top). The darker feature near the bottom is called Tyrrhena Terra. It is a heavily cratered region that contains one of Mars' oldest volcanoes.

Jupiter, Io and Ganymede; XT6; July 4, 2009
The Great Red Spot is clearly visible here. The moons are, from left to right, are Io and Ganymede.

Saturn; XT6; April 02, 2009
This was my third, and best, attempt at imaging Saturn. One of the problems with trying to image with a telescope mounted on an alt-az base is that as objects move across the sky, they appear to rotate in the eyepiece. This effect was particularly pronounced with Saturn. The rings had "rotated" several degrees between the time I started imaging and the time that I stopped!

The following planets were all imaged with the Epsilon-200. The planets are far too small to render much detail within the E-200's field of view, though. My primary reason for imaging them was to simply say that I did it. Plus, I was hoping to catch a few moons, which I did!

Uranus and moons; E-200; July 17, 2010
Neptune and Triton; E-200; July 17, 2010
Pluto, near Barnard 92; E-200; July 17, 2010
Pluto passed in front of Barnard 92, a dark nebula, during mid-July 2010. Unfortunately, I missed that event.  I did catch Pluto, though, shortly after it had passed. It is right next to a star. It is easier to distinguish the two in the full-size image.