Daily Archives: October 17, 2014

The Sun online and solar activity 17.10.2014

солнце 17 октября

INFO FROM SIDC – RWC BELGIUM 2014 Oct 17 11:34:19

During the past 24 hours, one M flare and four C flares were released by the backside region close to the east limb that produced both M flares on October 14 (probably this region is the return of M-flaring region NOAA AR 2173). The M4.3 flare peaked at 13:03 UT on October 16. In the next 48 hours, M flares are possible, especially from the region near the east limb that has produced the three M flares.Over the last 24 hours the solar wind speeds observed by ACE varied between about 380 and 500 km/s, with current speed values around 435 km/s. The magnitude of the Interplanetary Magnetic Field (IMF) varied between 1.5 and 7.5 nT, with current values around 5.5 nT. Geomagnetic conditions during the last 24 hours were quiet to active (K Dourbes between 1 and 4; NOAA Kp between 1 and 3). Quiet geomagnetic levels (K Dourbes < 4) are expected on October 17, 18 and 19.

Pelican Nebula

b41c529979bb276c55db41dbc033feca.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Steven Yockey

The Pelican Nebula (also known as IC 5070 and IC 5067) is an H II region associated with the North America Nebula in the constellationCygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name. The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbour, the North America Nebula, by a molecular cloud filled with dark dust.

The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555.[1] Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.

Imaging cameras: Starlight Xpress Trius SX-694 mono
Mounts: Orion USA Sirius Eq-G
Guiding telescopes or lenses: Orion USA 102ED F7.0
Guiding cameras: Meade DSI II
Focal reducers: William Optics FF/FR F6A
Software: PixInsight, PHD, Main Sequence Software Sequence Generator Pro, ProDigital Software Astronomy Tools
Filters: Orion H Alpha 7nm, LRGB
Accessories: Orion USA Nautilus 7 x 1.25″ Filter Wheel, Orion USA Dew controller and strips
Resolution: 2700×2120
Dates: Sept. 25, 2014, Sept. 26, 2014, Sept. 28, 2014
Orion H Alpha 7nm: 9×1200″ bin 1×1
LRGB: 25×120″ bin 1×1
LRGB: 75×180″ bin 2×2
Integration: 7.6 hours
Avg. Moon age: 1.94 days
Avg. Moon phase: 5.63%
Bortle Dark-Sky Scale: 6.00
RA center: 43.869 degrees
DEC center: 60.345 degrees
Pixel scale: 2.909 arcsec/pixel
Orientation: 166.075 degrees
Field radius: 1.387 degrees

Author: yock1960
Astrophotography of the day of  SPONLI, 17.10.2014