Daily Archives: October 28, 2014

The Sun online and activity solar.28.10.2014



Another X-class flare was produced by Catania sunspot group 88 (NOAA AR 2192); an X2.1 flare peaked at 14:47 UT on October 27. Also three M-class and several C-class flares were added to the activity list of this region. No associated CME was observed, nor was there an increase in proton flux. The region Lf-nh7 retains its area and magnetic complexity and has still high potential to produce additional flares up to the X-level. It is currently located close to the West limb and a strong eruption may result in a rise of the proton flux.  The extended filament in the northern hemisphere has the potential to lift off and produce an Earth-directed CME.  Earth is inside a slow solar wind, with a speed near 400 km/s. The interplanetary magnetic field magnitude reaches values up to 8 nT, with an often southward oriented Bz. Mostly quiet geomagnetic conditions are observed, with a few isolated time slots of active (K=4, measured at Dourbes) conditions. Quiet to active conditions are  expected to continue.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 28/10/14
Exposure 1/500 sec.


Flame Nebula


The Flame Nebula, designated as NGC 2024 and Sh2-277, is an emission nebula in the constellation Orion. It is about 900 to 1,500 light-years away.

The bright star Alnitak (ζ Ori), the easternmost star in the Belt of Orion, shines energetic ultraviolet light into the Flame and this knocks electrons away from the great clouds of hydrogen gas that reside there. Much of the glow results when the electrons and ionized hydrogen recombine. Additional dark gas and dust lies in front of the bright part of the nebula and this is what causes the dark network that appears in the center of the glowing gas. The Flame Nebula is part of the Orion Molecular Cloud Complex, a star-forming region that includes the famous Horsehead Nebula.

Imaging telescopes or lenses: Orion USA 102ED F7.0
Imaging cameras: Canon 550D, Atik 314L+
Mounts: Skywatcher HEQ5 SynScan
Guiding telescopes or lenses: Orion USA 50mm Guide Scope
Guiding cameras: Imaging Source DBK41AU02.AS
Software: DeepSky Imaging DeepSky Stacker
Filters: Orion H‑Alpha 7nm
Resolution: 1351×999
Dates: Oct. 19, 2014
Locations: Apartment, Brazilian Astrophotography Meeeting
Frames: 30×300″
Integration: 2.5 hours
Avg. Moon age: 24.99 days
Avg. Moon phase: 21.56%

Аuthor: Rodrigo Andolfato

Astrophotography of the day of SPONLI, 28.10.2014