Only 4 C-class events were observed over the last 24 hours. The strongest reached a maximum of C2.6 at 03:59UT (3 July) and originated from a region just behind the Sun’s east limb. It was associated to a fast, not Earth-directed CME (about 1400 km/s). Of the 9 visible sunspot groups, NOAA 2104 remains the largest and most complex region, still having a magnetic delta. However, it did not produce a C-class flare. NOAA 2100, 2106 and 2107 produced each a C1-flare. The long filaments resp. near NOAA 2106, about 20 degrees west of NOAA 2107, and in the southwest quadrant, are still present but -for the moment- stable.
C-class flares are expected, with a chance on an isolated M-class flare. A solar wind structure arrived at ACE near 23:30UT. Wind speed jumped from about 320 to 350 km/s. Bz turned southward around 02:30UT and remained between -4 and -8 nT for nearly 9 hours before returning to positive values. The impact on the geomagnetic field was minimal, as only quiet geomagnetic conditions have been recorded so far (K < 4). A small equatorial coronal hole that passed the central meridian on 30 June may affect Earth on 4 July. Quiet geomagnetic conditions are expected, with locally a brief active
Equipment: Coronado 90 + Imaging Source DMK + LX75
Processing: Photoshop, Avistack 300 frames
Time UT: 16:00
Exposure 1/500 sec.
Image Credit & Copyright: Martin Pugh
The prominent ridge of emission featured in this vivid skyscape is known as the Cygnus Wall. Part of a larger emission nebula with a distinctive shape popularly called The North America Nebula, the ridge spans about 10 light-years along an outline that suggests the western coast of Mexico. Constructed from narrowband image data, the cosmic close-up maps emission from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. The result highlights the bright ionization front with fine details of dark, dusty forms in silhouette. Sculpted by energetic radiation from the region’s young, hot, massive stars, the dark shapes inhabiting the view are clouds of cool gas and dust with stars likely forming within. The North America Nebula itself, NGC 7000, is about 1,500 light-years away. To find it, look northeast of bright star Deneb in the high flying constellation Cygnus.
APOD NASA 03-Jul 14
M 82 (also known as NGC 3034, Cigar Galaxy) is the prototype nearby starburst galaxy about 12 million light-yearsaway in the constellation Ursa Major. The starburst galaxy is five times more luminous than the whole Milky Way and one hundred times more luminous than our galaxy’s center. The starburst activity is thought to be triggered by interaction with neighboring galaxy M81, and M82 is a member of the M81 Group.
SN 2014J, an apparent Type Ia supernova, was observed in the galaxy on 21 January 2014.
Imaging telescopes or lenses: Ian King Ikharos 8″ RC
Imaging cameras: Atik 460 EX
Mounts: Software Bisque Paramount MX
Guiding telescopes or lenses: Ian King Ikharos 8″ RC
Guiding cameras: Atik 314L+
Software: PixInsight, Software Bisque CCDSoft 5, Software Bisque TheSkyX, iLanga AstroPlanner, Matt Thomas’s CCDCommander
Filters: Baader H-alpha 7nm 36mm, Baader Luminance 36mm, Baader Red, Green, Blue 36mm
Accessories: Atik EFW2, Innovations Foresight On-axis guider
Dates: Dec. 18, 2013, Dec. 23, 2013
Baader H-alpha 7nm 36mm: 25×900″ bin 2×2
Baader Luminance 36mm: 31×600″ bin 1×1
Baader Red, Green, Blue 36mm: 55×600″ bin 2×2
Integration: 20.6 hours
Author: Colin McGill
AstroPhotography of the day by SPONLI 03 July 2014