Starship Asterisk*

As a Dutch astrophotographer I couldn't resist this target:
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Copyright: André van der Hoeven

A reprocessing of an earlier version showing even more data. In total 37.5 h of exposures was used in an international collaboration

Copyright: Terry Hancock, Fred Herrmann, André van der Hoeven
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M27 with its outer halo

Copyright: André van der Hoeven, Terry Hancock, Fred Herrmann

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M57_hancock_herrmann_hoeven_ippel_vdberg_framed_smallest.jpg This image shows the ring nebula together with its very faint halo as imaged by 11″, 12″ and 17″ reflectors during over 100 hours of observation time. Credit: André van der Hoeven , Terry Hancock , Fred Herrmann , Mike van den Berg and Ma...

Here is a nice overview of developments in astrophotography in the last century seen on the Ring nebula:

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Copyright: André van der Hoeven, Terry Hancock, Fred Herrmann

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Copyright: Andre van der Hoeven, Fred Herrmann, Terry Hancock 2013 All rights reserved.

Two days ago NASA released a new image of M57. I had processed this data before, so I couldn't hold my self and combined my processing together with Subaru data and data from the Large Binocular Telescope to get this result. I think this shows M57 with a detail never shown before. Credits: NASA/ESA/...

I'm slowly getting a grip on pixinsight and finally can improve on some imagery made in the recent past. This image of the Elephant Trunk nebula is still one of my favorites, and the colors seem much more natural now... Skywatcher ED80/Tak FSQ85 Camera: SXV-H9/QSI583 Exposure: 12x1800s Ha, 7x1800s O...

Ann wrote:Congratulations, André, on the very fine processing job you did with the Hubble data of this galaxy!

Ann

Thanks a lot!

That's just outside the field of view...

Here is my image of Panstarrs over the world famous windmills of Kinderdijk... panstarrs_over_Kinderdijk_1_reduced_web.jpg A full resolution version without text is here: full res image And here is a version with the comet's skytrace clearly showing: panstarrs_timelapse_annotated_small.jpg Full reso...

Here is an image of last week of our beautiful day-time star:

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Two of my favourite valentine objects:

The heart nebula
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The Rosetta nebula
Full size here: http://www.astro-photo.nl/raw/ngc2237.jpg

This images shows a combined image of M51 taken by the Hubble Space telescope and the Spitzer space telescope. Star formation areas and dust bands jump out in this highly detailed image. high resolution m51combined2web.jpg Credits: NASA/JPL-Caltech/R. Kennicutt (Univ. of Arizona)/DSS Based on observ...

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...

The sun is raising its activity again:
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A cooperation between J-P Metsävainio and myself. He processed the data of my Melotte 15 image using his tone mapping technique, resulting in this detailed image of the Melotte 15 cluster and the dust structures near it...

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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 200-inch telescope (M...

When working on imagery of the HST from M57 I found a dot moving. When combining images from 4 different years it clearly showed the proper motion of the star. In the databases this star is not marked as moving. It's great to make such a 'discovery'. Nice to see the universe really isn't static at a...

Here is the Hubble image of M57 combined with data from the Subaru Telescope in Hawaii. The data was kindly provided by Robert Gendler. Based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telesco...

Last summer I started processing some Hubble data for the hidden treasures competition. When browsing through the hubble archives today I found this, previously not released, data of M57 from September 2011. I processed this data with the following result. This image shows the ring nebula with a det...

Melotte 15 in the Heart nebula. Reprocessing from data obtained in the last 3 months.

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Last night I had the TEC140 running on my EQ6 while I was sleeping. Result 11x1800s S2 data that I could add to my previously gathered data. It took almost two months with the sparse clear nights here, but the result I do like a lot... Exposures: 9 x 1800s H-alpha (4,5nm – 06/10/2012) 12 x 1800s OII...

A pillars of creation like image of the hubble is shown here. It was a processing I did for the Hubble hidden treasures competition and which I further processed using pixinsight to make it even nicer. I love this hubble image and I'm astonished this was never released this way by the Hubble team......

Recently I have been working on reprocessing old imagery using new software and techniques. This image improved a tremendous amount in noise and star colors... This image is the result of the cooperation between three observers. Images were made with different equipment and combined to get this deep...