Daily Archives: January 17, 2014

The Sun Online and solar activity. January 17, 2014

During last 24 hours eight C-class flares were reported and majority of them originated from the active region on the East solar limb. The strongest flare was the C6.2 flare which peaked at 21:39 UT on January 16. The flare originated from the active region on the East solar limb and was most probably associated with partial halo CME. Due to data gap the partial halo CME was first seen in the SOHO/LASCO C2 field of view only at the height of about 3.5 solar radii, at 23:36 UT on January 16. The CME had angular width of about 190 degrees, projected speed around 500 km/s and was directed somewhat southward of the Sun-Earth line. We expect arrival of the CME, or at least the glancing blow from the CME-driven shock wave, in the morning of January 20.The Earth is inside a slow solar wind with a speed of about 360 km/s. The interplanetary magnetic field magnitude is about 4 nT. The geomagnetic conditions are currently quiet and expected to remain so during following hours. The glancing blow from the CME-driven shock wave, associated with the partial halo CME first seen in the SOHO/LASCO C2 field of view at 09:36 UT on January 14, is expected to arrive at the Earth on January 18. It may cause unsettled to active geomagnetic conditions.
SIDC

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 01/17/14
Time UT: 14:00
Exposure 0.8 sec.

  

M83 Star Streams

M83StarstreamGendlerLLL
Image Credit & Copyright: R. Gendler, D. Martinez-Delgado (ARI-ZAH, Univ. Heidelberg) D. Malin (AAO),
NAOJ, ESO, HLA – Assembly and Processing: Robert Gendler

Explanation: Big, bright, and beautiful, spiral galaxy M83 lies a mere twelve million light-years away, near the southeastern tip of the very long constellation Hydra. This deep view of the gorgeous island universe includes observations from Hubble, along with ground based data from the European Southern Observatory’s very large telescope units, National Astronomical Observatory of Japan’s Subaru telescope, and Australian Astronomical Observatory photographic data by D. Malin. About 40,000 light-years across, M83 is popularly known as the Southern Pinwheel for its pronounced spiral arms. But the wealth of reddish star forming regions found near the edges of the arms’ thick dust lanes, also suggest another popular moniker for M83, the Thousand-Ruby Galaxy. Arcing near the top of the novel cosmic portrait lies M83’s northern stellar tidal stream, debris from the gravitational disruption of a smaller, merging satellite galaxy. The faint, elusive star stream was found in the mid 1990s by enhancing photographic plates.
NASA APOD 17-ene-2014

NGC 6188 in the constellation Ara

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NGC 6188
 is an emission nebula located about 4,000 light years away in the constellation Ara. The bright open cluster NGC 6193, visible to the naked eye, is responsible for a region of reflection nebulosity within NGC 6188.

NGC 6188 is a star forming nebula, and is sculpted by the massive, young stars that have recently formed there – some are only a few million years old. This spark of formation was probably caused when the last batch of stars went supernova.

Camera : Astro60D (cooled at-9C)
Telescope/Lens : Takahashi FS-60C + flatterner (374mm f/6.2)
Filter : Astronomik 6nm Ha
ISO : 3200
Mount : Takahashi EM-11
Autoguide : SBIG SG-4

Total Exposure Time : 84mins
w Dark Frames, Bias Frames
process w DSS,PI, PS5

Autor:  Vincent Vegabort

AstroPhotography of the day by SPONLI

17 January 2014

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

The Sun Online and solar activity. January 16, 2014

The only C-class flare reported in last 24 hours was the C1.1 flare which peaked at 06:22 on January 16. The flare originated from the active region at the East solar limb and was associated with narrow CME (about 40 degrees) which is not Earth directed. The low C-class flares are probable in the following 24 hours. The Earth is currently inside a slow solar wind with a speed of about 400 km/s. The interplanetary magnetic field is still stable with the magnitude between 2 and 3 nT. The geomagnetic conditions are quiet and expected to remain so in the following 24 hours. The glancing blow from the CME-driven shock wave, associated with the partial halo CME first seen in the SOHO/LASCO C2 field of view at 09:36 UT on January 14, is expected to arrive at the Earth on January 18. It may cause unsettled to active geomagnetic conditions.
SIDC

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 01/16/14
Time UT: 19:00
Exposure 0.8 sec.

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