Daily Archives: October 20, 2014

The Sun online and solar activity.20.10.2014

солнце 20 октября
INFO FROM SIDC - RWC BELGIUM 2014 Oct 20 13:00:17

Six sunspot groups are reported by Catania today. The main source of the
solar flaring activity is the Catania sunspot group 88 (NOAA AR 2192) that
is growing in size and complexity. Now it has beta-gamma-delta
configuration of its photospheric magnetic field. After yesterday's X1.1
flare, the strongest flare was the M3.9 flare peaking at 09:11 UT today.
This flare was not accompanied by a CME. We expect more flaring activity up
to X-level from this sunspot group. The Earth is currently inside a solar
wind flow with intermediate speeds (around 500-550 km/s). This flow might
be associated with a narrow low-latitude coronal hole that passed the solar
central meridian on October 17-18. The interplanetary magnetic field (IMF)
magnitude was elevated (up to 9 nT), and the IMF was directed predominantly
southward during the last several hours. Intervals of active geomagnetic
conditions (K = 4) were reported by Dourbes and NOAA. We expect quiet to
active geomagnetic conditions in the coming hours.

The Sun online and solar activity. 19.10.2014

картинка солнца 19 октября

During the past 24 hours, one X flare and nine C flares were released by beta-gamma region NOAA AR 2192. The long duration X1.1 flare peaked at 5:03 UT on October 19. It seems that the X flare was not accompanied by a CME. In the next 48 hours, X flares are possible, especially from AR 2192.Over the last 24 hours the solar wind speeds observed by ACE varied between about 355 and 515 km/s, with current speed values around 400 km/s. The magnitude of the Interplanetary Magnetic Field (IMF) varied between 2 and 11 nT, with current values around 10 nT. Solar wind speeds are expected to stay nominal until October 22, when they are likely to increase to well over 500 km/s due to the expected arrival of a coronal hole high speed stream. Geomagnetic conditions during the last 24 hours were quiet to active (K Dourbes between 2 and 4; NOAA Kp between 2 and 4). Quiet geomagnetic levels (K Dourbes < 4) with active excursions (K Dourbes = 4) are expected on October 19, 20 and 21.

NGC 2244


NGC 2244 (also known as Caldwell 50) is an open cluster in the Rosette Nebula, which is located in the constellation Monoceros. This cluster has several O-type stars, super hot stars that generate large amounts of radiation and stellar wind.

The age of this cluster has been estimated to be less than 5 million years and its two brightest stars are HD 46223 of spectral classO4V, 400,000 times brighter than the Sun, and approximately 50 times more massive, and HD 46150, whose spectral type is O5V, has a luminosity 450,000 time larger than that of our star, and is up to 60 times more massive, but it may actually be a double star.

Imaging telescopes or lenses: Skywatcher Black Diamond 150/750 Newton
Imaging cameras: Canon EOS 1000D EOS 1000D , EOS1000Da
Mounts: EQ5 EQ-5 pro goto
Guiding telescopes or lenses: 80mm f5 Orion Shorty Autoguide scope Orion Short Tube 80mm/400FL/F5.0
Guiding cameras: Orion Starshoot Autoguider
Focal reducers: Baader MPCC Mark III Baader MPCC Mark lll
Software: DSS, PS, APT, Lightroom deepskystacker
Resolution: 1642×1080
Dates: Sept. 27, 2014
Frames: 21×120″ ISO800
Integration: 0.7 hours
Darks: ~10
Flats: ~22
Bias: ~30
Avg. Moon age: 2.56 days
Avg. Moon phase: 7.26%
Bortle Dark-Sky Scale: 1.00
RA center: 98.021 degrees
DEC center: 4.851 degrees
Pixel scale: 3.757 arcsec/pixel
Orientation: 101.185 degrees
Field radius: 1.026 degrees

Аuthor: galaad16, 20.10.2014