Daily Archives: April 12, 2014

The Sun Online and solar activity. April 12, 2014

Four C-class flares were observed originating from Catania sunspot region 24 (NOAA AR 2035),
the largest one being a C5.3 peaking at 15:01 UT, April 11. The C5.3 flare was associated with an Eastward directed CME (first measurement of LASCO/C2 at 14:48 UT) with angular width of about 100 degrees and speed of 568 km/s as estimated by CACTus. At most a shock could arrive at Earth around 12h UT on April 14. More C-class flares are expected during the next 48 hours, especially from Catania sunspot region 24. Also an isolated M-class flare is possible. ACE observed an increase in the magnitude of the IMF from 7 to 11 nT, with a negative Bz currently reaching -9 nT. This resulted in active to minor storm magnitude conditions during the first half the UT day (local K=4 at Dourbes and even NOAA Kp=5). Solar wind speed has gradually declined to 350 km/s. Unsettled to maximally major storm conditions are expected due to currently negative Bz and the arrival of the CH high speed stream.
SIDC

Equipment: Coronado 90 + Imaging Source DMK + LX75
Processing: Photoshop, Avistack 300 frames
Date: 04/12/14
Time UT: 14:00
Exposure 1/500 sec.

With SPONLI Space is getting closer

Clouds and Crosses over Haleakala

Image Credit & Copyright: Wally Pacholka (TWAN)

Aloha and welcome to a breathtaking skyscape. The dreamlike panoramic view from March 27 looks out over the 10,000 foot summit of Haleakala on Maui, Hawai’i. A cloud layer seeps over the volcanic caldera’s edge with the Milky Way and starry night sky above. Head of the Northern Cross asterism, supergiant star Deneb lurks within the Milky Way’s dust clouds and nebulae at the left. From there you can follow the arc of the Milky Way all the way to the stars of the more compact Southern Cross, just above the horizon at the far right. A yellowish Mars is right of center, near the top of the frame, with rival red giant Antares below it, closer to the Milky Way’s central bulge. Need some help identifying the stars? Just slide your cursor over the picture, or download this labeled panorama.

NASA APOD 12-Apr-2014

NGC 4565 Needle Galaxy

NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-yearsaway in the constellation Coma Berenices.

The 10th magnitude galaxy sits perpendicular to our own Milky Way galaxy and is almost directly above the North Galactic Pole (in the same way Polaris is located above the Earth’s North Pole). It is known as the Needle Galaxy for its narrow profile. First spotted in 1785 by Sir William Herschel (1738–1822), this is one of the most famous examples of an edge-on spiral galaxy. “Visible through a small telescope, some sky enthusiasts consider NGC 4565 to be a prominent celestial masterpiece Messier missed.”

Imaging telescopes or lenses: Stellarvue SV 152
Software: DC-3 Dreams ACP, Maxim DL, photoshop
Filters: Astrodon E-series LRGB
Dates: May 15, 2013
Locations: New Mexico Skies
Frames: 48×600″
Integration: 8.0 hours

Author: Mike Miller

AstroPhotography of the day by SPONLI
12 April 2014

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