Daily Archives: October 16, 2014

The Sun online and solar activity. 16.10.2014

солнце 16 октября

A full halo CME was detected by LASCO C2 at 19:00 UT on October 14. Its main bulk propagated towards the southeast at an estimated speed of 923 km/s as measured on LASCO C2 and C3 imagery. This CME was associated with the M1.1 flare peaking at 18:37 UT, released by a backside region close to the east limb at 10 S (probably the return of M-flaring region NOAA AR 2173). The associated ICME is not expected to become geo-effective since it is backsided.

Ptolemy Cluster

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Messier 7 or M7, also designated NGC 6475 and sometimes known as the Ptolemy Cluster, is an open cluster of stars in theconstellation of Scorpius. The cluster is easily detectable with the naked eye, close to the “stinger” of Scorpius (also called Scorpion[5]). With a declination of -34.8°, it is the southernmost Messier object.

M7 has been known since antiquity; it was first recorded by the 1st-century Greek-Roman astronomer Ptolemy, who described it as anebula in 130 AD.[6] Italian astronomer Giovanni Batista Hodierna observed it before 1654 and counted 30 stars in it. In 1764, French astronomer Charles Messier catalogued the cluster as the seventh member in his list of comet-like objects. English astronomer John Herschel described it as “coarsely scattered clusters of stars”.

Imaging telescopes or lenses: North Group 80mmF6 Triplet
Imaging cameras: Nikon D7000
Mounts: Losmandy G11 Astrometric Skywalker
Guiding telescopes or lenses: Orion 80mm f/5
Guiding cameras: Orion Starshoot Auto-Guider
Software: Diffraction Limited MaximDL 5 Pro
Resolution: 4948×3280
Dates: Nov. 6, 2013
Locations: Leyburn Dusty Downs Observatory – Dark Sky
Frames: 8×120″
Integration: 0.3 hours
Avg. Moon age: 2.72 days
Avg. Moon phase: 8.15%

Author: Greg Bock

AstroPhotography of the day of SPONLI, 16.10.2014