Showing posts with label planets. Show all posts
Showing posts with label planets. Show all posts

Sunday, February 22, 2015

Fly me to the moon

Last night there was a beautiful crescent moon hanging over the island of Frösön. The dark side of the moon is visible because it's lit by whats called earthlight, that's light from the Sun being reflected from Earth onto the moon.

Down to the right of the moon you can see two bright spots just above the treeline, that's planet Venus and Mars. Venus is the brighter one and Mars is a little bit fainter. You can also see that Mars is more red in it's color. Quite amazing that you're able to see the colors of the planets at a focal length of only 24 mm.

The light streaks through the image is a helicopter that flew by during my exposure.


Wednesday, February 4, 2015

Planet Jupiter and the Moon in close encounter

During the last three days, planet Jupiter and the Moon has been quite close to each other. Here are three photos I took of them together.

The last photo was taken using a focal length of 110 mm and in the original photo you can clearly see three of four of Jupiter's biggest moons, the so called Galilean moons. The 4 moons are Io, Europa, Ganymede, and Callisto. When I took this photo Io (the innermost of the four) was behind planet Jupiter and therefore not visible.

In the upper left corner of that photo I've included a 100% crop of the original image of the area around Jupiter. As you can see both the planet and the moons are formed as short lines rather than spheres/dots, that's due to the long exposure of 8 seconds. During these 8 seconds, Earth rotation makes the entire sky move and this movement is recorded by the camera when using a longer focal length.

Photo taken February 2, 2015

Photo taken February 3, 2015

Photo taken February 4, 2015