Yesterday evening I wanted to do some imaging after an astro society meeting. Because of some problems I was only able to start after 1,5 hours with imaging. When I finally got my first exposure clouds came in. After 1 exposure it was already over. I didn’t want to give up, so I set up …
This image shows a combination of visible light imagery of the Hubble Space telescope and infrared data from the Spitzer space telescope of M51, aka the Whirlpool galaxy. The Whirlpool Galaxy (also known as Messier 51a, M51a, or NGC 5194) is an interacting grand-design spiral galaxy that is estimated to be 23 ± 4 million …
Jets are an active, short-lived phase of star formation, lasting only about 100 000 years. They are called Herbig-Haro (HH) objects, named after George Herbig and Guillermo Haro, who studied the outflows in the 1950’s. Astronomers still don’t know what role jets play in the star formation process or exactly how the star unleashes them. …
Since the weather hasn’t been very good for astrophotography the last 1,5 months I have been working on older data to see what I can get out of it. In October/November 2012 I imaged Melotte 15 in the Heart nebula, which is one of my favorite objects. “The bright star cluster [known as an “open …
Recently I have been working on Hubble data of M57. When processing the data I found one of the stars moving between the images. Triggered by this I tried to find more data that could show the motion. I found some old images made in 1922 and around 1959 made by a 100-inch and a …
This image was the result of combining my Hubble image created from 2011 WFC3 data and data from the Subaru Telescope (8.2m) in Hawaii, processed by Robert Gendler. He kindly shared the data and the final result is an astonishing image showing the outer shells of the M57 planetary nebula. More info about this nebula …
This image shows the most detailed image taken of M57, until present day. The famously named “Ring Nebula” (also catalogued as Messier 57, M57 or NGC 6720) appears in the northern constellation of Lyra and is located in the Carina–Sagittarius Arm. It is one of the most prominent examples of a planetary nebula, the gaseous …
Here is a comparison image showing results from my C11 and the 8.2m telescope in Chili and the Spitzer space telescope. Notice the differences in exposure time!
The Heart Nebula, IC 1805, Sh2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The nebula is formed by plasma of ionized hydrogen and free electrons. The nebula’s intense …