The background of the X-ray flux has decreased below the C-level. Four C-class levels erupted from NOAA AR 2109, 2113 and new region 2117. NOAA AR 2117 has emerged near the center of the solar disk. No new Earth-affecting CMEs were observed. Flare activity at the C-level is expected. Solar wind speed is stable around 370-380 km/s, as measured by ACE. The magnitude of interplanetary magnetic field reached a maximum of 6 nT with a Bz component fluctuating between -6 and +4 nT. Geomagnetic conditions have been quiet to unsettled and are expected to remain so till the arrival of a glancing blow of the July 9 CME. Active conditions are possible from the UT morning of July 13.
Equipment: Coronado 90 + Imaging Source DMK + LX75
Processing: Photoshop, Avistack 300 frames
Time UT: 18:00
Exposure 1/500 sec.
Image Credit: NASA, ESA, Zolt Levay (STScI)
A new star, likely the brightest supernova in recorded human history, lit up planet Earth’s sky in the year 1006 AD. The expanding debris cloud from the stellar explosion, found in the southerly constellation of Lupus, still puts on a cosmic light show across the electromagnetic spectrum. In fact, this composite view includes X-ray data in blue from the Chandra Observatory, optical data in yellowish hues, and radio image data in red. Now known as the SN 1006 supernova remnant, the debris cloud appears to be about 60 light-years across and is understood to represent the remains of a white dwarf star. Part of a binary star system, the compact white dwarf gradually captured material from its companion star. The buildup in mass finally triggered a thermonuclear explosion that destroyed the dwarf star. Because the distance to the supernova remnant is about 7,000light-years, that explosion actually happened 7,000 years before the light reached Earth in 1006. Shockwaves in the remnant accelerate particles to extreme energies and are thought to be a source of the mysterious cosmic rays.
APOD NASA 12-Jul-14
Located in the Perseus Arm of the Galaxy, the Heart nebula (left) and the Soul nebula (right) are two bright nebulae in a region of the Galaxy where a lot of stars are forming. IC 1805 (the Heart nebula) is also sometimes called the ‘Running Dog nebula’ because it is said to resemble a running dog when viewed through a telescope.
Imaging telescopes or lenses: Canon EF 70-200mm f/4L USM
Imaging cameras: Canon EOS 550D / Rebel T2i
Mounts: Skywatcher Neq6 pro synscan
Guiding cameras: QHY5
Software: PHD guiding, Stark Labs Nebulosity 3.1.0, photoshop
Dates: Oct. 10, 2013
Integration: 1.8 hours
Author: Ivan Jevremovic
AstroPhotography of the day by SPONLI 12 July 2014