Daily Archives: November 25, 2014

Sun online and solar activity 24.11.2014


INFO FROM SIDC – RWC BELGIUM 2014 Nov 24 12:16:19

Five low-level C-class flares were observed over the last 24 hours. The largest was a C4.1 peaking at 11:04UT in NOAA 2217, which was also the source of 3 other C2 flares. One of these peaked on 23 November at 16:14UT and was associated to a non-Earth directed CME, first visible in LASCO at 16:24UT. NOAA 2216 produced the remaining C2 flare. The other regions were quiet, with NOAA 2209 still maintaining a weak delta spot in its trailing portion. More C-class flares are expected, with a chance on an isolated M-class flare. The IMF is directed away from the Sun, with Bz varying between -7 and +4 nT. Solar wind speed varied between 470 and 360 km/s and is currently near 400 km/s. The geomagnetic field was quiet to unsettled (K<3), and is expected to remain so, with an isolated active period possible.

Messier 10

25 ноября


Messier 10 or M10 (also designated NGC 6254) is a globular cluster of stars in the equatorial constellation of Ophiuchus. The object was discovered by the French astronomer Charles Messier on May 29, 1764, who cataloged it as number 10 in his catalogue and described it as a “nebula without stars”. In 1774, German astronomer Johann Elert Bode likewise called it a “nebulous patch without stars; very pale”. Using larger instrumentation, German-born astronomer William Herschel was able to resolve the cluster into its individual members. He described it as a “beautiful cluster of extremely compressed stars”. William Parsons, 3rd Earl of Rosse thought he could distinguish a dark lane through part of the cluster. The first to estimate the distance to the cluster was Harlow Shapley, although his derivation of 33,000 light years was much further than the modern value.

Imaging telescopes or lenses: SharpStar 107 PH, TSAPO65Q
Imaging cameras: Atik 460EX
Mounts: Sky-Watcher EQ6 Pro
Guiding telescopes or lenses: Tecnosky Telescopio guida 60/228mm
Guiding cameras: Starlight Xpress Lodestar
Focal reducers: SHARPSTAR Flattener 2″
Software: PHD guiding, Maxim DL, photoshop, Auriga Imaging RegiStar
Resolution: 1800×1440
Dates: Aug. 11, 2013, Aug. 16, 2014
Locations: Casa Suoceri in Calabria
HUTECH IDAS LPS P2: 6×300″ -6C bin 1×1
ZWO LRGB: 6×300″ -8C bin 1×1
Integration: 1.0 hours
Avg. Moon age: 12.25 days
Avg. Moon phase: 41.00%
Bortle Dark-Sky Scale: 3.00
RA center: 254.293 degrees
DEC center: -4.094 degrees
Pixel scale: 2.041 arcsec/pixel
Orientation: -86.649 degrees
Field radius: 0.653 degrees

Аuthor: Rino

Astrophotography of the day of SPONLI, 25.11.2014