Daily Archives: September 5, 2013

Sun online. Solar activity. 05 September 2013

The solar events of the last 24 hours :
According to data of Royal Observatory of Belgium

  • Solar activity has been eruptive during the past 24 hours, featuring a C1.3 flare from NOAA AR 11836 peaking at 21:35 UT on September 4.
  • More C flares are likely within the next 48 hours, with a slight chance for an M flare, especially from NOAA AR 11836.
  • The solar wind speed ranged between 420 and 470 km/s in the past 24 hours. In the same period, the Interplanetary
  • Currently, on the Sun can be identified 4 active regions with sunspots .

Magnetic Field was low around 4 to 5 nT. The geomagnetic activity was at
quiet levels (K Dourbes between 0 and 2; NOAA Kp between 0 and 2) during
the past 24 hours. Quiet conditions (K Dourbes < 4) are expected for
September 5 to 7.

Local time:9/5/2013 at 8:06:17 Local time:9/5/2013 at 8:06:17 Local time:9/5/2013 at 8:06:17 Local time:9/5/2013 at 8:06:17 #sun #online #sponli

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 09/05/13
Time GMT: 16:30:00
Exposure 0.09 sec.

With SPONLI Space is getting closer!

M1: The Incredible Expanding Crab


Image Credit & Copyright:
Adam Block, Mt. Lemmon SkyCenter, U. Arizona

Explanation: The Crab Nebula is cataloged as M1, the first on Charles Messier’s famous list of things which are not comets. In fact, the Crab is now known to be a supernova remnant, an expanding cloud of debris from the explosion of a massive star. The violent birth of the Crab was witnessed by astronomers in the year 1054. Roughly 10 light-years across today, the nebula is still expanding at a rate of over 1,000 kilometers per second. Want to watch the Crab Nebula expand? Check out this video (vimeo) animation comparing an image of M1 taken in 1999 at the European Southern Observatory, with this one, taken in 2012 at the Mt. Lemmon Sky Center. Background stars were used to register the two images. The Crab Nebula lies about 6,500 light-years away in the constellation Taurus.