Daily Archives: December 3, 2014

Sun and solar activity 02.12.2014


INFO FROM SIDC – RWC BELGIUM 2014 Dec 02 11:50:40 Solar activity is low. The strongest flare, out of 5 low-level C-class flares reported in the last 24 hours, was the impulsive C5.2 flare (peaking at 08:05 UT) on December 2. The flare originated from the Catania sunspot group 18 (NOAA AR 2217), and does not seem to be associated with CME (currently available data give no indication about possible on disc signatures of the CME). Catania sunspot groups 18 and 24 (NOAA ARs 2217 and 2222) maintain beta-gamma configuration of their photospheric magnetic field and could be the source of C-class flares. An isolated M-class flare is still possible from the Catania sunspot group 24 (NOAA AR 2222). No Earth directed CMEs were observed during last 24 hours.The Earth is currently inside a fast solar wind with the speed of about 550 km/s. This high speed stream which arrived on the midday of December 01, is associated with the extended low-latitude coronal hole (between N25 and N70) which reached the central meridian on the morning of November 26 (the transition of the coronal hole across the central meridian lasted more than two days). During last 24 hours the interplanetary magnetic field was slightly elevated, reaching the magnitude of about 12nT, but its current value decrease to about 5nT. The arrival of the coronal hole high speed stream resulted in the unsettled to active geomagnetic conditions (K=3 reported by Dourbes, K=4 reported by IZMIRAN and NOAA reported Kp=4) in the evening of December 1 and early morning of December 2. The geomagnetic conditions are at the moment quiet to unsettled and expected to remain so in the coming hours.

North America Nebula


The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. It is sometimes incorrectly called the “North American Nebula”.

Imaging telescope / lens: Skywatcher Equinox 80

Imaging camera: Canon 350D Baader

Mount: Losmandy G-11
Guide telescope / lens: Celestron C8
Focal reducers: TeleVue 0.8x Photo Reducer / Flattener TRF-2008
Programs: Adobe photoshop
Filters: eos clip UHC
Accessories: pl1m
RA Centre: 313.804 degrees
DEC center: 44.288 degrees
Pixel scale: 3,322 coal. sec / pixel
Direction: 169.677 degrees
The radius of the field: 1,915 degrees

Author: nono26

Astrophotography of the day by SPONLI, 03.12.2014