NGC 7000 is also known as the North America Nebula with the so called Gulf of Mexico. In this area the Cygnus Wall can be found. This part is the Mexican and Middle American part of the Nebula. It’s one of the most interesting parts of the nebula because this is a region of active …
Click on image for high resolution The nebula Sh2-101 is better known as the Tulip Nebula. This nebula is strong in H-alpha emissions. The nebula has a distance of about 2000 lightyears from Earth. This image also shows the famous Cygnus X-1 system. Cygnus X-1 is the brightest source of hard X-rays in our sky. …
full resolution (8 Mp) M27 was discovered by Charles Messier on the 12th of July 1764. This was the first planetary nebula discovered by him. The name Dumbbell Nebula was given by John Herschel later when he took a better look at the shape of the nebula. M27 is the second brightest planetary nebula …
This image shows the ring nebula together with its very faint halo as imaged by 11″, 12″ and 17″ reflectors. Credit: André van der Hoeven, Terry Hancock, Fred Herrmann, Mike van den Berg and Mathijn Ippel Like other old red giants M57, better known as the Ring nebula, has expelled most of its material in …
In 2011 I started with imaging M57 with my C11 and a 12nm H-alpha filter. I then caught the first glimpse of the outer halo of M57. The ring nebula, as Messier 57 is better known, consists of three structures, the inner, bright and most familiar, nebula, which is about 86″ by 62″. This is …
On the 23rd of May 2013 NASA released a new image from the Hubble Space Telescope and the Large Binocular Telescope showing the outskirts of M57, the Ring Nebula. The same dataset was used as I used for my previous processing of M57. As this was based on comparable data I decided to combine this …
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 …