Daily Archives: June 13, 2014

The Sun Online and solar activity. June 13, 2014

The complex and long duration M3.1 flare (peaking at 22:16 UT) on June 12 was associated with an EIT wave, type II radio burst (estimated shock wave speed is about 1700 km/s) and a partial halo CME. The CME was first seen in the SOHO/LASCO C2 field of view at 22:12 UT, had the angular width of 200 degrees and the projected plane of the sky speed of 600 km/s (as reported by the CACTUS software). The bulk of the CME mass was ejected south-west from the Sun-Earth line. The arrival of the glancing blow from the CME-driven shock wave is possible but not very probable in the evening of June 15.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 06/13/14
Time UT: 20:00
Exposure 1/500 sec.

Observatory SPONLI


A Strawberry Moon 


Image Credit & Copyright: Göran Strand

 June’s Full Moon (full phase on June 13, 0411 UT) is traditionally known as the Strawberry Moon or Rose Moon. Of course those names might also describe the appearance of this Full Moon, rising last month over the small Swedish village of Marieby. The Moon looks large in the image because the scene was captured with a long focal length lens from a place about 8 kilometers from the foreground houses. But just by eye a Full Moon rising, even on Friday the 13th, will appear to loom impossibly large near the horizon. That effect has long been recognized as the Moon Illusion. Unlike the magnification provided by a telescope or telephoto lens, the cause of the Moon illusion is still poorly understood and not explained by atmospheric optical effects, such as scattering and refraction, that produce the Moon’s blushing color and ragged edge also seen in the photograph.

NASA APOD 13-Jun-14

Trifid nebula in Saggitarius

The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region located in Sagittarius. It was discovered by Charles Messier on June 5, 1764. Its name means ‘divided into three lobes’. The object is an unusual combination of an open cluster of stars; an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent ‘gaps’ within the emission nebula that cause the trifurcated appearance; these are also designated Barnard 85). Viewed through a small telescope, the Trifid Nebula is a bright and peculiar object, and is thus a perennial favorite of amateur astronomers.

Imaging telescopes or lenses: Meade Starfinder 10″
Imaging cameras: QSI 683wsg-8
Mounts: Losmandy G11
Guiding cameras: starlight express lodestar
Software: Main Sequence Software Sequence Generator Pro, PHD guiding, PixInsight, photoshop
Filters: B, R, L, Astronomik Green
Dates: May 29, 2014

Author: Andrew Lockwood

AstroPhotography of the day by SPONLI 13 June 2014