Recent Submissions: 2012 December

[ExitPupil]

A 100 Megapixel shot of the last full Moon of 2012.

http://exitpupil.org/photograph.php?p=T ... _megapixel
https://www.facebook.com/ExitPupilCreativeWorks

Copyright: Scott MacNeill / Frosty Drew Observatory

Click to view full size image

[ViliMax]

Melotte 15 - Open Cluster (The Heart of Heart Nebula - IC1805) in Cassiopeia

http://www.elateobservatory.com
http://www.irida-observatory.org

Copyright: Velimir Popov

This is the H-HO-O bicolor combination. Melotte 15 is a very loose open cluster in the central regions of emission nebula IC 1805 (Heart Nebula) located about 7500 light years away. It is catalogued by the British-Belgian astronomer Philibert Jacques Melotte (1880-1961). This open cluster is about 1.5 million years young and contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.

Click to view full size image

Higher resolution and more information is avaliable here ...

Thank you for looking ...

[Tamas Abraham]

Full Moon in the Alps
http://www.vadakcsillaga.hu/
Copyright: Tamas Abraham

Click to view full size image

[bystander]

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 Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA) and data from the Subaru 8.2 m telescope (NAOJ). Processing: André van der Hoeven/Robert Gendler

Full resolution

m57_hst_subaru_avdhoeven_rgendler_web.jpg

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 detail never shown before anywhere in the world (as far as I know...).

image

In 1998 an image of this nebula was released by the Hubble team, based on WFC2 data (older instrument). This image was taken with the WFC3 instrument. A comparison can be seen here:

comparison

What I noticed is a strong motion of a star on the right hand side of the nebula which moved clearly in the 15 years between the two images:

animation

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 Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA). Processing: André van der Hoeven (http://www.astro-photo.nl)

A Smoke Ring and a Shooting Star
Slate Blogs | Bad Astronomy | 2012 Dec 24

[messier63]

Epsilon 250 ED f/3.4, Canon 6D Astrodon, 1600 iso, only 1h30 (sub of 2min) any filter.
Jérôme ASTREOUD and Philippe TOSI, France.