Only C-1 class flares were observed since our last bulletin, originating in NOAA AR 12010 and 12015. The latter region reduced to a beta configuration and it is turning over the west limb. More C-class flares can be expected from NOAA regions 12010 and 12014, with a small chance for an M-flare. The warning conditions for proton events is maintained as the most prominent active regions are currently in the western hemisphere.The effects of the CME observed on March 23 are subsiding. Geomagnetic conditions were quiet
(K and Kp <= 2) in the past 24h and are expected to remain so.
Equipment: Coronado 90 + Imaging Source DMK + LX75
Time UT: 13:00
Exposure 1/500 sec.
With SPONLI Space is getting closer
Image Assembly & Processing: Robert Gendler and Judy Schmidt
Image Data: Subaru Telescope (NAOJ), Hubble Legacy Archive, R. Gendler
The first identified compact galaxy group, Stephan’s Quintet is featured in this remarkable image constructed with data drawn from Hubble Legacy Archive and the Subaru Telescope on the summit of Mauna Kea. The galaxies of the quintet are gathered near the center of the field, but really only four of the five are locked in a cosmic dance of repeated close encounters taking place some 300 million light-years away. The odd man out is easy to spot, though. The interacting galaxies, NGC 7319, 7318A, 7318B, and 7317 have a more dominant yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptivegravitational tides. The mostly bluish galaxy, NGC 7320, is in the foreground about 40 million light-years distant, and isn’t part of the interacting group. Still, captured in this field above and to the left of Stephan’s Quintet is another galaxy, NGC 7320C, that is also 300 million light-years distant. Of course, including it would bring the four interacting galaxies back up to quintet status. Stephan’s Quintet lies within the boundaries of the high flyingconstellation Pegasus. At the estimated distance of the quintet’s interacting galaxies, this field of view spans over 500,000 light-years.
NASA APOD 27-mar-2014
The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years (2.4×1019 km) from Earth in the Andromeda constellation. Also known as Messier 31, M31, or NGC 224, it is often referred to as the Great Andromeda Nebula in older texts.
M31 is known to harbor a dense and compact star cluster at its very center. In a large telescope it creates a visual impression of a star embedded in the more diffuse surrounding bulge. The luminosity of the nucleus is in excess of the most luminous globular clusters.
Imaging telescopes or lenses: Skywatcher Esprit 150ED
Mounts: 10 Micron GM1000 HPS
Software: Stark Labs Nebulosity 3.1, PHD
Accessories: Celestron OAG, Starlight Xpress Lodestar
Dates: Sept. 29, 2013
Integration: 3.3 hours
Author: Tim Jardine
AstroPhotography of the day by SPONLI
27 March 2014