Daily Archives: January 29, 2014

The Sun Online and solar activity. January 29, 2014

Solar activity has been at active levels over the last 24 hours. 9 C- and 3 M-class flares were recorded. The 3 M-class flares all originated in the mixed polarity region south of NOAA 1967’s main spot, the strongest reaching M4-level at 19:40UT. This part of the region has been increasing its sunspot area. The mixed polarity region to the northwest of the main spot produced C-class flares as well as an M3-spike at 15:26UT (total duration less than 4 minutes), after which it simplified. NOAA 1968 was
responsible for 2 C-class flares originating in its trailing portion. A filament eruption took place to the  north and west (trailing) of NOAA 1960. It was associated to a C4-flare peaking at 00:49UT. The  x-ray background has been all day above the C1-level.
Active conditions are expected to continue, with a slight chance on an
X-class flare.
 The CMEs associated with NOAA 1967’s flaring activity were directed to the East and away from Earth. The CME from the filament eruption was directed mostly to the South and away from Earth. Based on current imagery, no geomagnetic effects are expected from these CMEs. Around 20:30UT, solar wind speed changed from about 330km/s to 450-500 km/s. The high temperature, low density stream had a Bz varying between -5 and +5 nT. The source of this high speed stream is most probably a small coronal hole thatpassed the central meridian on 25 January. Geomagnetic effects were limited and quiet conditions persisted. Solar wind may continue to be modulated by the effects of small coronal holes that have passed the central meridian on 27 and 29 January. Geomagnetic conditions are expected to remain quiet.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 500 frames
Date: 01/29/14
Time UT: 16:00
Exposure 1/500 sec.

With SPONLI Space is getting closer!


Jelly Donut Shaped Rock Appears on Mars

Image Credit: Mars Exploration Rover Mission, Cornell, JPL, NASA
Explanation: What if a rock that looked like a jelly donut suddenly appeared on Mars? That’s just what happened in front of the robotic Opportunity rover currently exploring the red planet. The unexpectedly placed rock,pictured above, was imaged recently by Opportunity after not appearing in other images taken as recently as twelve Martian days (sols) before. Given the intriguing mystery, the leading explanation is somewhat tame — the rock was recently scattered by one of the rover’s tires. Even so, the rock’s unusual light tones surrounding a red interior created interest in its composition — as well as causing it to be nicknamed Jelly Donut. A subsequent chemical analysis showed the rock has twice the abundance of manganese than any other rock yet examined — an unexpected clue that doesn’t yet fit into humanity’s understanding of the Martian geologic history.Opportunity, just passing its 10-year anniversary on Mars, continues to explore the Murray Ridge section of the rim of 22-kilometer wide Endeavor Crater.

NASA APOD 29-Jan-2014

NGC 1893: Tadpole Nebula in Narrowband

The Tadpole Nebula (IC 410) is an emission nebula around an open star cluster (NGC 1893). The “tadpoles” are clumps of gas and dust from the formation of the cluster. Inside them, new stars are born. The tails from the “tadpoles” are caused by the solar wind of the stars of NGC 1893 (that’s why the point away from the star cluster).

Imaging telescopes or lenses: Takahashi TOA-130
Imaging cameras: FLI ML 11002
Guiding telescopes or lenses: Takahashi TOA-130
Guiding cameras: Starlight Xpress Lodestar
Software: Main Sequence Software Sequence Generator Pro, CCDStack2
Filters: Astrodon Narrowband Set (Ha OIII SII)
Accessories: .67 Field Flattener
Dates: Jan. 17, 2014
Locations: Home
Frames: 46×1200″

Autor: Mark Striebeck

AstroPhotography of the day by SPONLI

29 January 2014

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