Daily Archives: March 20, 2014

The Sun Online and solar activity. March 20, 2014

NOAA AR 2010 produced today, March 20 an M1.7 flare with peak at 03:56UT. A type II outburst was detected. PROBA2 SWAP running difference images shows the coronal footprint of a CME which has only a faint appearance in COR2/STEREO B, not in LASCO/SOHO.   NOAA AR 2014 rotated over the east limb and was the source of a C8.3 flare and a plasma eruption.  We expect more activity from this region. We estimate a chance for more M-flares to be slightly above 50%. The solar wind speed is still below 400 km/s. The geomagnetic conditions are quiet. A small equatorial coronal hole is situated near the central meridian. It
might become geoeffective in 3-4 days.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 03/20/14
Time UT: 13:00
Exposure 1/500 sec.

With SPONLI Space is getting closer


Solargraphy Analemmas

Image Credit & Copyright: Maciej Zapiór and Łukasz Fajfrowski

Today is the equinox. The Sun crosses the celestial equator heading north at 16:57 UT, marking the northern hemisphere’s first day of spring. To celebrate, consider this remarkable image following the Sun’s yearly trek through planet Earth’s sky, the first analemmas exposed every day through the technique of solargraphy. In fact, three analemma curves were captured using a cylindrical pinhole camera by daily making three, separate, one minute long exposures for a year, from March 1, 2013 to March 1, 2014, on a single piece of black and white photographic paper. The well-planned daily exposures began at 10:30, 12:00, and 13:30, CET from a balcony looking south from the Kozanów district in Wrocław, Poland. That year’s two equinoxes on March 20 and September 22 correspond to the mid-points, not the cross-over points, along the figure-8 shaped curves. Apparent gaps in the curves are due to cloudy days. Two solid lines at the lower left were both caused by a timer switch failure that left the pinhole shutter open.

NASA APOD 20-mar-2014

Large Magellanic Cloud

2f6b185917f4fb9fb4897138d56480a3.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Ignacio Diaz Bobillo

The Large Magellanic Cloud (LMC) is a nearby galaxy, and a satellite of the Milky Way. At a distance of slightly less than 50 kiloparsecs (≈163,000 light-years), the LMC is the third closest galaxy to the Milky Way, with the Sagittarius Dwarf Spheroidal (~ 16 kiloparsecs) and the putative Canis Major Dwarf Galaxy (~ 12.9 kiloparsecs, though its status as a galaxy is under dispute) lying closer to the center of the Milky Way. It has a mass equivalent to approximately 10 billion times the mass of the Sun (1010 solar masses), making it roughly 1/100 as massive as the Milky Way, and a diameter of about 14,000 light-years (~ 4.3kpc). The LMC is the fourth largest galaxy in the Local Group, after the Andromeda Galaxy (M31), the Milky Way, and theTriangulum Galaxy (M33).

Imaging telescopes or lenses: Pentax Takumar 67 SMC 75mm f/4
Imaging cameras: Canon EOS 1000D / Rebel XS
Mounts: Losmandy G11
Guiding telescopes or lenses: Astro-Physics AP130 Gran Turismo
Guiding cameras: Philips SP 900 NC
Software: PixInsight, Canon Digital Photo Professional, PHD guiding
Dates: Sept. 24, 2011
Frames: 18×300″
Integration: 1.5 hours

Author: Ignacio Diaz Bobillo

AstroPhotography of the day by SPONLI

20 March 2014