Daily Archives: April 5, 2014

The Sun Online and solar activity. Abril 5, 2014

ACE observations of the interplanetary conditions show a weak shock signature on April 5th, around 09:30 UT. It is probably associated with the CME events of April 1st and April 2nd. Unsettled to active geomagnetic
conditions are expected for the coming hours.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 04/05/14
Time UT: 14:00
Exposure 1/500 sec.

With SPONLI Space is getting closer


Lunar Farside

Image Credit: NASA / GSFC / Arizona State Univ. / Lunar Reconnaissance Orbiter
Tidally locked in synchronous rotation, the Moon always presents its familiar nearside to denizens of planet Earth. From lunar orbit, the Moon’s farside can become familiar, though. In fact this sharp picture, a mosaic from the Lunar Reconnaissance Orbiter’s wide angle camera, is centered on the lunar farside. Part of a global mosaic of over 15,000 images acquired between November 2009 and February 2011, the highest resolution version shows features at a scale of 100 meters per pixel. Surprisingly, the rough and battered surface of the farside looks very different from the nearside covered with smooth dark lunar maria. The likely explanation is that the farside crust is thicker, making it harder for molten material from the interior to flow to the surface and form the smooth maria.

NASA APOD 05-Apr-14

Planetary nebula Abell 31

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Abell 31
 is an ancient planetary nebula in the constellation of Cancer. It is estimated to be about 2,000 light years away. Although it is one of the largest planetary nebulae in the sky, it is not very bright.

Imaging telescopes or lenses: Boren-Simon PowerNewt 8
Imaging cameras: Atik 460EX
Mounts: Sky-Watcher EQ-6 Pro
Guiding telescopes or lenses: Teleskop-Service Finderscope
Guiding cameras: QHYCCD QHY5
Focal reducers: ASA 2″ x 0,73 Corrector/Reducer 2KORRR
Software: PixInsight, Maxim DL, AstroTortilla
Filters: Astronomik SII 12nm, OIII 12nm, Astronomik H-alpha 12nm
Accessories: Lunatico Astronomia Seletek Armadillo
Dates: March 29, 2014
Astronomik H-alpha 12nm: 5×600″ -15C bin 1×1
OIII 12nm: 5×600″ -15C bin 1×1
Astronomik SII 12nm: 5×600″ -15C bin 1×1
Integration: 2.5 hours
Flats: ~20
Bias: ~500

Author: Samuli Vuorinen

AstroPhotography of the day by SPONLI
5 Abril 2014