Daily Archives: June 6, 2014

The Sun Online and solar activity. June 6, 2014

One single C-class flare was observed with peak at 10:24 UT on June 6, originating from Catania sunspot group 69 (NOAA AR 2080).  This sunspot region has increased in size and evolved to a region with beta-gamma configuration. Also Catania sunspot group 71 (NOAA AR 2082) has grown, while all other regions remained stable. Analysis of the CME mentioned in yesterday’s ursigram (with first measurement at 15:24 UT on 4 June) revealed no geoeffective part of this CME is expected to arrive. Flaring activity is expected to be at C-class level, with a slight chance for an M-class flare. No geoeffective CMEs were observed.Currently we are experiencing stable solar wind conditions with a solar wind speed around 350 km/s and a magnitude of the interplanetary magnetic field near 5 nT. Quiet geomagnetic conditions were observed and are expected to continue until the arrival of a high speed stream. This might result in time slots with unsettled to active geomagnetic conditions from later today (UT time) on.
SIDC

 

Comet PanSTARRS with Galaxy 

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Image Credit & Copyright: Alessandro Falesiedi

Sweeping slowly through northern skies, the comet PanSTARRS C/2012 K1 posed for this telescopic portrait on June 2nd in the constellation Ursa Major. Now in the inner solar system, the icy body from the Oort cloud sports two tails, a lighter broad dust tail and crooked ion tail extending below and right. The comet’s condensed greenish coma makes a nice contrast with the spiky yellowish background star above. NGC 3319 appears at the upper left of the frame that spans almost twice the apparent diameter of the full Moon. The spiral galaxy is about 47 million light-years away, far beyond the stars in our own Milky Way. In comparison, the comet was a mere 14 light-minutes from our fair planet. This comet PanSTARRS will slowly grow brighter in the coming months remaining a good target for telescopic comet watchers and reaching perihelion, its closest approach to the Sun, while just beyond Earth’s orbit in late August.

NASA APOD 06-Jun-14

Rosette Nebula

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The Rosette Nebula (also known as Caldwell 49) is a large, circular H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula’s matter.

The cluster and nebula lie at a distance of some 5,200 light-years from Earth (although estimates of the distance vary considerably, down to 4,900 light-years.) and measure roughly 130 light years in diameter. The radiation from the young stars excite the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. Themass of the nebula is estimated to be around 10,000 solar masses.

It is believed that stellar winds from a group of O and B stars are exerting pressure on interstellar clouds to cause compression, followed by star formation in the nebula. This star formation is currently still ongoing.

Imaging telescopes or lenses: Canon EF 200 f/2.8 L USM II
Imaging cameras: Canon 60Da
Mounts: Celestron Advanced VX
Guiding telescopes or lenses: Orion 50mm Helical Guider
Guiding cameras: Orion Star Shoot autoguider
Software: Adobe Photoshop CS4, Deep Sky Stacker
Filters: Astronomik H-alpha 6nm EOS Clip filter
Dates: Dec. 25, 2013, Dec. 26, 2013
Frames:
57×300″ ISO400
Astronomik H-alpha 6nm EOS Clip filter: 88×300″ ISO1600
Integration: 12.1 hours
Darks: ~30
Flats: ~40
Flat darks: ~40

Author: Chad Quandt
AstroPhotography of the day by SPONLI 06 June 2014