Image Credit: NASA, JPL-Caltech, MSL, Navcam
NASA APOD 08-Mar-2014
Mount Sharp on the Horizon
Image Credit: NASA, JPL-Caltech, MSL, Navcam
Daily Archives: March 8, 2014
Image Credit: NASA, JPL-Caltech, MSL, Navcam
The Sun Online and solar activity. March 07, 2014
Over the last 24 hours, no C-class flares were observed, with x-ray background around B6-level. There are currently 9 sunspot regions on the visible solar disk. Most sunspot groups are stable or decaying. Eruptive
flaring conditions are expected, with most chance on a C-flare from sunspot group NOAA 1996. A CME was observed by LASCO/C2 on 6 March at 13:36UT, and was associated to a filament eruption in the southeast solar quadrant. Current imagery indicates it did not have an Earth directed component.
Over the last 24 hours, solar wind speed has gradually decreased to values near 410 km/s, with Bz varying between -4nT and +4nT. Geomagnetic conditions have been quiet and are expected to remain so until the arrival of a high speed wind stream from the coronal hole that passed the central meridian early on 5 March. This may result in episodes of active geomagnetic conditions starting 8-9 March.
SIDC
Equipment: Coronado 90 + Imaging Source DMK + LX75
Processing: Photoshop, Avistack 300 frames
Date: 03/07/14
Time UT: 15:00
Exposure 1/500 sec.
With SPONLI Space is getting closer
NGC 891: unbarred spiral galaxy in the constellation Andromeda
NGC 891 (also known as Caldwell 23) is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel on October 6, 1784. The galaxy is a member of the NGC 1023 group of galaxies in the Local Supercluster. It has an H II nucleus. The object is visible in small to moderate size telescopes as a faint elongated smear of light with a dust lane visible in larger apertures.
NGC 891 looks as we think the Milky Way would look like when viewed edge-on (some astronomers have even noted how similar to NGC 891 our galaxy looks as seen from the Southern Hemisphere) and in fact both galaxies are considered very similar in terms of luminosity and size; studies of the dynamics of its molecular hydrogen have also proven the likely presence of a centralbar. Despite this, recent high-resolution images of its dusty disk show unusual filamentary patterns. These patterns are extending into the halo of the galaxy, away from its galactic disk. Scientists presume that supernova explosions caused this interstellar dust to be thrown out of the galactic disk toward the halo.
Imaging telescopes or lenses: TPO 8″ Ritchey–Chrétien
Imaging cameras: SBIG ST-8300M
Mounts: Orion Atlas EQ-G
Guiding cameras: SBIG ST-i Planetary and Guide Camera Mono
Software: DeepSkyStacker, PHD guiding, photoshop, Nebulosity
Filters: Astrodon Tru-Balance Generation 2 E-Series – LRGB 36mm Round Fil
Accessories: SBIG OAG-8300
Dates: Nov. 28, 2013
Locations: Cedar Key, FL
Frames:
Astrodon Tru-Balance Generation 2 E-Series – LRGB 36mm Round Fil: 11×1200″ -20C bin 1×1
Astrodon Tru-Balance Generation 2 E-Series – LRGB 36mm Round Fil: 12×600″ -20C bin 2×2
Integration: 5.7 hours
Autor: Mike Carroll
08 March 2014
We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.