Daily Archives: May 8, 2014

The Sun Online and solar activity. May 8, 2014

Catania group 36 (NOAA AR 2051), which already turned behind the west limb, produced another M1.2 flare, peaking at 16:29 UT. Activity is now shifting to the eastern hemisphere where Catania group 34 (NOAA AR 2056) produced the biggest flare of the past 24 hours, an M5.3 flare peaking at 10:07 UT.
In thh hour before, X-ray flux was already increased by enhanced emission from the east limb, associated with expected returning NOAA AR 2046. Further flaring in the C level is expected over the coming days especially from the regions on the eastern hemisphere with chances for M flares. The M1.2 flare originating from NOAA AR 2051 (Catania group 36) was associated with a partial halo CME. It was detected by CACTus combined with a number of preceding CME’s (and therefore incorrectly classified as full
halo) but the main component is first visible in LASCO data at 16:24 UT. Another, full halo, CME, first visible in LASCO data at 3:24 UT seems to originate from the same region, with hence the bulk of the mass expelled in western direction form the Sun Earth line with projected speeds of around 800km/s as seen from STEREO A. Given the location of the source region around the limb both CME’s are not expected to be geoeffective.A fast forward shock was observed in ACE solar wind data around 21:35 UT May 7.
Solar wind speed jumped from about 330 km/s to about 380 km/s and total magnetic field jumped from around 5 nT to above 8nT. Density and temperature also increased. The shock was possibly a late signature of the May 3 CME. Bz was negative and increasing in magnitude after that event to almost -12nT. It has been varying between -12nT and +10nT afterwards. Wind speed was fluctuating around the 340 km/s level.

Geomagnetic conditions have been quiet up to the shock arrival. Afterwards, active geomagnetic conditions were observed: NOAA Kp increased to 4 for the 3-6UT interval, local K Dourbes has been at K=4 level since 7 UT. The active geomagnetic conditions are expected to first settle down although unsettled (and possibly active) conditions may accompany the influence of a coronal hole high speed stream later on.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 05/08/14
Time UT: 14:00
Exposure 1/500 sec.

With SPONLI Space is getting closer


The Tail of the Hamburger Galaxy 

Image Credit & Copyright: Martin Pugh

Sharp telescopic views of NGC 3628 show a puffy galactic disk divided by dark dust lanes. Of course, this deep portrait of the magnificent, edge-on spiral galaxy puts some astronomers in mind of its popular moniker, the Hamburger Galaxy. It also reveals a small galaxy nearby, likely a satellite of NGC 3628, and a faint but extensive tidal tail. The tantalizing island universe itself is about 100,000 light-years across and 35 million light-years away in the northern springtime constellation Leo. Its drawn out tail stretches for about 300,000 light-years, even beyond the left edge of the wide frame. NGC 3628 shares its neighborhood in the local Universewith two other large spirals M65 and M66 in a grouping otherwise known as the Leo Triplet. Gravitational interactions with its cosmic neighbors are likely responsible for creating the tidal tail, as well as the extended flare and warp of this spiral’s disk.

NASA APOD 08-May-14

IC 4604 in Ophiuchus

4baab1ed6c154d2a2f332c7018c6de62.1824x0_q100_watermark_watermark_opacity-25_watermark_position-6_watermark_text-Copyright Jose Fco. del Aguila

Rho Ophiuchi is a triple star system located at the southern end of the constellation Ophiuchus near de limit with Scorpius.
The stars are embedded in a large blue reflection nebulosity catalogued as IC 4604 which is mixed with several filaments of dark nebulae. This region is also part of a larger dust and nebulosity region known as the Rho Ophiuchus / Antares complex.

Imaging telescopes or lenses: Sky-Watcher 200/1000 Black Diamond
Imaging cameras: Canon EOS 450D
Mounts: CGEM
Guiding telescopes or lenses: Lunatico Astronomia EZG-60
Guiding cameras: ZW Optical ASI120MC
Software: PHD Guiding, Incanus APT – Astro Photography Tool, PixInsight Core 1.8
Accessories: Baader MPCC Corrector de Coma
Dates: May 3, 2014
Frames: 7×600″ ISO1600
Integration: 1.2 hours
Darks: ~15
Flats: ~20
Bias: ~150

Author: Jose Fco. Del Aguila
AstroPhotography of the day by SPONLI 08 May 2014