Daily Archives: January 22, 2014

The Sun Online and solar activity. January 22, 2014

A partial halo CME was detected by SOHO/LASCO on January 21. The CME first appeared in the LASCO C2 field of view at 21:17 UT. It had angular width of around 230 degrees and the speed around 900 km/s. Inspection of STEREO/EUVI B data indicates that the CME was associated with a far side eruption (as seen from the Earth) starting around 21:06 UT, with the source region situated around S15W150. This CME will therefore not arrive at the Earth and have no geomagnetic consequences.

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 01/22/14
Time UT: 18:00
Exposure 0.8 sec.

With SPONLI Space is getting closer!


The Upper Michigan Blizzard of 1938

Image Credit: Bill Brinkman; Courtesy: Paula Rocco
Explanation: Yes, but can your blizzard do this? In Upper Michigan’s Storm of the Century in 1938, some snow drifts reached the level of utility poles. Nearly a meter of new and unexpected snow fell over two days in a storm that started 76 years ago tomorrow. As snow fell and gale-force winds piled snow to surreal heights; many roads became not only impassable but unplowable; people became stranded; cars, school buses and a train became mired; and even a dangerous fire raged. Fortunately only two people were killed, although some students were forced to spend several consecutive days at school. The above image was taken by a local resident soon after the storm. Although all of this snow eventually melted, repeated snow storms like this help build lasting glaciers in snowy regions of our planet Earth.

NASA APOD 22-Jan-2014

NGC 6888: the Crescent Nebula

The Crescent Nebula (also known as NGC 6888Caldwell 27Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light years away. It was discovered by Friedrich Wilhelm Herschel in 1792. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 to 400,000 years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting temperatures.

It is a rather faint object located about 2 degrees SW of Sadr. For most telescopes it requires a UHC or OIII filter to see. Under favorable circumstances a telescope as small as 8cm (with filter) can see its nebulosity. Larger telescopes (20cm or more) reveal the crescent or aEuro sign shape which makes some to call it the “Euro sign nebula”.

Imaging telescopes or lenses: CELESTRON Edge HD 8
Imaging cameras: QSI 583 wsg
Mounts: Astro-Physics Mach 1 GTO
Guiding telescopes or lenses: CELESTRON Edge HD 8
Guiding cameras: SX Lodestar
Software: Maxim DL 5 MaximDL 5, Pleiades Astrophoto Pixinsight 1.8, Adobe Photoshop 6 CS
Filters: Astrodon Ha 5mm, Astrodon OIII 3nm
Accessories: SXV-AO-LF
Frames: 36×1800″

Autor: Daniele Malleo

AstroPhotography of the day by SPONLI

22 January 2014

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.