Daily Archives: January 15, 2014

The Sun Online and solar activity. January 15, 2014

The flaring activity is at the low C-class level. The last C-class flare reported was C3.2 flare which peaked at 16:04 UT, on January 14. The flare originated from the Catania sunspot group 98 (NOAA AR 1944). The background X-ray flux has high B-level, so we expect C-class flares, while M-class flares are not probable. The Catania sunspot group 98 (NOAA AR 1944) just rotated behind the West solar limb and we maintain the warning condition for a proton event for the following 24 hours. The eruption, originating from the Catania sunspot group 9 (NOAA AR 1950) at about 08:30 UT on January 14, was accompanied by coronal dimming, EIT  wave and a post-eruption arcade observed by SDO/AIA. Due to data gap the associated partial halo CME was first seen in the SOHO/LASCO C2 field of view only at the height of about 4.5 solar radii, at 11:36 UT on January 14. The CME had a width of about 180 degrees and approximate speed of 400 km/s. The bulk of the CME mass was directed somewhat northward of the
Sun-Earth line and we expect at least the glancing blow from the associated CME-driven shock wave, on January 18.The solar wind speed is still slowly decreasing and its current value is about 500 km/s. The interplanetary magnetic field is stable with the magnitude between 2 and 3 nT. The geomagnetic conditions are currently quiet and expected to remain so in the following 24 hours. 

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 01/15/14
Time UT: 17:00
Exposure 0.8 sec.

With SPONLI Space is getting closer!


Spitzer’s Orion


Image Credit: NASA, JPL-Caltech, T. Megeath (Univ. Toledo, Ohio)

Few cosmic vistas excite the imagination like the Orion Nebula, an immense stellar nursery some 1,500 light-years away. This stunning false-color view spans about 40 light-years across the region, constructed using infrared data from the Spitzer Space Telescope. Compared to its visual wavelength appearance, the brightest portion of the nebula is likewise centered on Orion’s young, massive, hot stars, known as theTrapezium Cluster. But the infrared image also detects the nebula’s many protostars, still in the process of formation, seen here in red hues. In fact, red spots along the dark dusty filament to the left of the bright cluster include the protostar cataloged as HOPS 68, recently found to have crystals of the silicate mineral olivine within its protostellar envelope.
NASA APOD 15-Jan-2014

NGC 281: the Pacman Nebula in Cassiopeia

c3580bfedd5e49c846cb830203961cf4.1824x0_q100_watermark_watermark_opacity-10_watermark_position-4_watermark_text-Copyright Pekka Simell

NGC 281 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to thevideo game character.

The nebula was discovered in August 1883 by E. E. Barnard, who described it as “a large faint nebula, very diffuse.” The multiple star HD 5005, also called \beta1, was discovered by S. W. Burnham. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 seconds of arc. There has been no appreciable change in this quintuple system since the first measurements were made in 1875.

The nebula is visible in amateur telescopes from dark sky locations.

Imaging cameras: Atik 383L+
Mounts: Astro-Physics Mach 1 GTO
Guiding telescopes or lenses: Teleskop Service 10″ Newton F4.8
Guiding cameras: Orion StarShoot Autoguider
Focal reducers: ASA 2″ x 0,73 Corrector/Reducer 2KORRR
Software: PixInsight PixInsinght 1.8 RC7
Filters: Baader Planetarium Baader 2″ Narrowband Set
Dates: Sept. 5, 2013, Sept. 6, 2013, Nov. 6, 2013
Baader Planetarium Ha 7nm: 22×400″ -20C bin 1×1
Baader Planetarium OIII 8.5nm: 20×400″ -20C bin 2×2
Baader Planetarium SII 8nm: 20×400″ -20C bin 2×2
Integration: 6.9 hours
Darks: ~11
Flats: ~20
Flat darks: ~20
Bias: ~20

Autor: Pekka Simell

AstroPhotography of the day by SPONLI

15 January 2014

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.