Daily Archives: March 13, 2014

The Sun Online and solar activity. March 13, 2014

There were three C flares and one M flare on the Sun during the past 24 hours. The M9.3 flare was produced by NOAA AR 11996 and peaked at 22:34 UT on March 12. This flare has probably triggered the filament eruption that took place near S20W45 around 00:24 UT on March 13, as detected in AIA imagery. A CME was observed on LASCO C2 images starting from 01:25 UT on March 13. This CME is probably related to the filament eruption. Based on the LASCO C2 imagery, this CME will probably not be geoeffective. CACTUS previously detected a CME on LASCO C2 images starting at 14:36 on March 12.
Based on COR2 A and B images, this CME was associated to a backside event produced by NOAA AR 11986 and hence will not be geoeffective. In the next 48 hours, the probability for C flares is very high (above 90%) and for M flares around 60%, mainly from NOAA AR 11996. There is a slight chance
(25%) for an X flare.In the past 24 hours, solar wind speed as observed by ACE gradually rose from about 250 to 370 km/s, while the magnitude of the Interplanetary Magnetic Field (IMF) varied between 5 and 11 nT. A sector boundary crossing took place when the IMF phi angle changed from negative to positive around 22h UT on March 12. In the past 24 hours, geomagnetic conditions reached active conditions (K Dourbes equal to 4; NOAA Kp between 4 and 5) from 0h to 6h UT on March 13, in response to the elevated solar wind speed and IMF magnitude, combined with a negative Bz. Quiet conditions (K Dourbes < 4; NOAA Kp < 4) were measured for the rest of the period. Quiet to active geomagnetic levels (K Dourbes < 5) are expected on March 13. Quiet geomagnetic conditions are forecasted for March 14 and 15.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 03/13/14
Time UT: 14:00
Exposure 1/500 sec.

With SPONLI Space is getting closer


Messier 63: The Sunflower Galaxy

Image Credit & Copyright: Bill Snyder (at Sierra Remote Observatories)
A bright spiral galaxy of the northern sky, Messier 63 is about 25 million light-years distant in the loyal constellation Canes Venatici. Also cataloged as NGC 5055, the majestic island universe is nearly 100,000 light-years across. That’s about the size of our own Milky Way Galaxy. Known by the popular moniker, The Sunflower Galaxy, M63 sports a bright yellowish core in this sharp, colorful galaxy portrait. Its sweeping blue spiral arms are streaked with cosmic dust lanes and dotted with pink star forming regions. A dominant member of a known galaxy group, M63 has faint, extended features that could be the result of gravitational interactions with nearby galaxies. In fact, M63 shines across the electromagnetic spectrum and is thought to have undergone bursts of intense star formation.

NASA APOD 13-Mar-2014

IC 405: Flaming Star Nebula

358b3d4e19f5a5f94e1179383ab89d5c.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Eric Coles
IC 405 (also known as the Flaming Star Nebula) is an emission/reflection nebula in the constellation Auriga, surrounding the bluish star AE Aurigae. It shines at magnitude +6.0. Its celestial coordinates are RA 05h 16.2m dec +34° 28′. It surrounds the irregular variable star AE Aurigae and is located near the emission nebula IC 410, the open clusters M38 and M36, and the naked-eye K-class starHassaleh. The nebula measures approximately 37.0′ x 19.0′, and lies about 1,500 light-years away. It is believed that the proper motion of the central star can be traced back to the Orion’s Belt area. The nebula is about 5 light-years across.

Imaging telescopes or lenses: Astro-Physics AP 130mm f/6.3 Starfire EDF
Imaging cameras: SBIG STXL-11002/FW8G-STXL
Mounts: Astro-Physics Mach1AP GTO with GTOCP3
Guiding telescopes or lenses: Astro-Physics AP 130mm f/6.3 Starfire EDF
Guiding cameras: SBIG STXL-11002/FW8G-STXL
Software: Pleiades Astrophoto Pixinsight 1.8, Photoshop CS5, Cyanogen Maxim DL Pro 5
Filters: Astrodon 3nm SII, Astrodon 3nm OIII, Astrodon H-alpha 3 nm
Dates: Sept. 30, 2013, Oct. 2, 2013, Oct. 3, 2013
Locations: My back deck
Astrodon 3nm OIII: 10×900″ bin 1×1
Astrodon 3nm SII: 10×900″ bin 1×1
Astrodon H-alpha 3 nm: 17×900″ bin 1×1
Integration: 9.2 hours

Autor: coles44

13 March 2014

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