Daily Archives: December 14, 2013

The Sun Online and solar activity. December 14, 2013

The X-ray background radiation has decreased slightly. C-flaring activity is however still very likely.A forward shock is seen in ACE solar wind data around 12UT on December 13: temperature, density and magnetic field strength increased, the speed increased from around 270 km/s to 330 km/s.
The shock is probably linked to the interaction of a slow and fast solar wind stream giving rise to a co-rotating interaction region. The northern coronal hole that reached the central meridian on December 10 is responsible for the fast solar wind. The planetary K index became 4 during one 3-hour interval this morning, December 14.  The total magnetic field strength at the L1 point is around 10 nT, the wind
carries 10 particles per cm3 at a speed of around 400 km/s. Active conditions are possible.
SIDC

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 12/14/13
Time UT: 00:00
Exposure 0.8 sec.

With SPONLI Space is getting closer!

  

Related posts:

  1. The Sun Online and solar activity. December 8, 2013
  2. The Sun Online and solar activity. December 9, 2013
  3. The Sun Online and solar activity. December 6, 2013
  4. The Sun Online and solar activity. December 7, 2013

The Bubble Nebula

IC 1805 closeup

Image Credit & Copyright: J-P Metsävainio (Astro Anarchy)

Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape. Cataloged as NGC 7635, it is also known simply as The Bubble Nebula. Although it looks delicate, the 10 light-year diameter bubble offers evidence of violent processes at work. Above and right of the Bubble’s center is a hot, O star, several hundred thousand times more luminous and around 45 times more massive than the Sun. A fierce stellar wind and intense radiation from that star has blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula lies a mere 11,000 light-years away toward the boastful constellation Cassiopeia. This natural looking view of the cosmic bubble is composed from narrowband image data, also used to create a 3D model.

Related posts:

  1. the Bubble Nebula
  2. Sharpless 308: Star Bubble
  3. NGC 7635: the Bubble nebula
  4. NGC 7635: the Bubble Nebula

Huge Rosette nebula

1498885_463295433778815_1656591667_o

Camera 650D MOD
Lens Takahashi FS-60CB
ISO 1600
Exposure 4MINS X 35 TOTAL 140
Filter CLS ASTRONOMIK
TRACKING MOUNT ASTROTRAC AG3200X
Process With Dark Bias PS DSS@ Danny Leung (Hong Kong)

AstroPhotography of the day by SPONLI

14 December 2013
We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.

Related posts:

  1. Rosette Nebula
  2. Horse head and flame nebulae in the constellation Orion
  3. NGC 2244: Rosette Nebula HaLRGB
  4. Great Orion Nebula