M45 2012-10-21

M45 2012-10-21

The Pleiades (M45) or Seven Sisters: One of the closest open star clusters roughly 400ly away. The nebula is a so called reflection nebula because it reflects the light of the stars. It consist of interstellar dust.
Image data: 60x60s @ ISO400, dark frames and flat frames.

Tried to upgrade to Drupal 7 - rolled back

I tried to upgrade to Drupal 7 yesterday - and rolled back after some hours. Someone decided to change the image handling and I was not able to migrate the old data in a way that images get displayed. I have to try with a test installation... Sometimes so simple things come out to be not so simple... ;-)

The sun at 2012-09-29 13:54 UTC

The sun  at 2012-09-29 13:54 UTC

The dark spots are "colder" areas (only 4000°C - the normal surface is 6000°C hot) on the sun where the rising of hot plasma from the inner core is inhibited by strong magnetic fields.
Single shot through my small Dobsonian-telescope protected by Baader-foil.
Processed with Registax 6 and GIMP.

M31 (Andromeda galaxy) 2012-09-08

M31 (Andromeda galaxy) 2012-09-08

The Andromeda Galaxy  is a spiral galaxy approximately 2.5 million light-years (2.4×1019 km) from Earth in the Andromeda constellation.

Dumbbell nebula (M27) 2012-09-08

Dumbbell nebula (M27) 2012-09-08

The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, M 27, or NGC 6853) is a planetary nebula (PN) in the constellation Vulpecula, at a distance of about 1,360 light years. This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a popular observing target in amateur telescopes.

Image data:

h+x Perseii 2012-09-06

h+x Perseii 2012-09-06

h Persei (NGC 869) and Chi Persei (NGC 884) on 2012-09-06

Location: Aschaffenburg

Canon EOS 1000D with TS ED 70/420 refractor.

50x60s lights, 10x60s darks at ISO400

Annotated: Summer milkyway in Cygnus with dust clouds and emission nebulae

Annotated: Summer milkyway in Cygnus with dust clouds and emission nebulae

Annotated version of the NGC7000 image. Annotation provided by www.astrometry.net.

M31 (Andromeda galaxy) in star field

M31 (Andromeda galaxy) in star field

Canon EOS 1000D, 50mm lens at f/4, 40x60s, ISO800, darkframes

Summer milkyway in Cygnus with dust clouds and emission nebulae

Summer milkyway in Cygnus with dust clouds and emission nebulae

Canon EOS 1000D, 50mm lens at f/4, 50x60s, ISO800, darkframes

Timelapse 2012-08-10

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