Daily Archives: December 12, 2013

The Sun Online and solar activity. December 12, 2013

Two long duration C-flares took place today: in the SW (NOAA AR 1912) and in the SE (NOAA AR 1917). Both were associated with a plasma eruption. Yesterday, we had a similar scenario in the SE. A mass of plasma was ejected in the neighbourhood of NOAA AR 1919. Geomagnetic conditions are quiet. A possible influence of a fast stream associated with a coronal hole in the northern hemisphere might arrive on December 14.

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 12/12/13
Time UT: 18:00
Exposure 0.8 sec.

With SPONLI Space is getting closer!


Alnitak, Alnilam, Mintaka

Image Credit & Copyright: Rogelio Bernal Andreo (Deep Sky Colors)
Alnitak, Alnilam, and Mintaka, are the bright bluish stars from east to west (lower right to upper left) along the diagonal in this gorgeous cosmic vista. Otherwise known as the Belt of Orion, these three blue supergiant stars are hotter and much more massive than the Sun. They lie about 1,500 light-years away, born of Orion’s well-studied interstellar clouds. In fact, clouds of gas and dust adrift in this region have intriguing and some surprisingly familiar shapes, including the dark Horsehead Nebula and Flame Nebula near Alnitak at the lower right. The famous Orion Nebula itself is off the right edge of this colorful star field. The well-framed, wide-field telescopic image spans about 4 degrees on the sky.
NASA APOD 12 December 2013