Daily Archives: April 16, 2014

The Sun Online and solar activity. April 16, 2014

Nine sunspot groups are reported on the Sun today. Four of them have beta-gamma configuration of the photospheric magnetic field: Catania numbers 23, 24, 25, and 26 (NOAA ARs 2034, 2035, 2036, and 2037, respectively). These four groups produced numerous C-class flares during the past 36 hours. None of the flares was associated with a CME. The strongest flare of today is the C5.2 flare peaking at 08:44 UT in the
Catania sunspot group 24 (NOAA AR 2035). The solar soft X-ray background flux is currently around the C1 level. We expect further flaring activity on the C-level from these four sunspot groups, with a good chance for an M-class event. The Earth is currently inside a slow (around 320 km/s) solar wind flow with weak to average (3-4 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 04/16/14
Time UT: 14:00
Exposure 1/500 sec.

With SPONLI Space is getting closer


Spica, Mars, and Eclipsed Moon

Image Credit & Copyright: Damian Peach

A beautiful, reddened Moon slid through dark skies on April 15, completely immersed in Earth’s shadow for well over an hour. It was the year’s first total lunar eclipse and was widely enjoyed over the planet’s Western Hemisphere. Seen from the Caribbean island of Barbados, the dimmed lunar disk is captured during totality in this colorful skyview. The dark Moon’s red color contrasts nicely with bright bluish star Spica, alpha star of the constellation Virgo, posing only about two degrees away. Brighter than Spica and about 10 degrees from the Moon on the right, Mars is near opposition and closest approach to Earth. The Red Planet’s own ruddy hue seems to echo the color of the eclipsed Moon.
NASA APOD 16-Apr-14

Nebulae of Sgr OB5 association

b92f395a002aea5bfaa031e50ce55456.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Dean SalmanComplex of HII regions located in the Sgr OB5 association in the Sagittarius arm.
Sh2-19 is located in the middle of the image with Sh2-16 located to the lower right. In the middle of those two lies Sh2-18. Sh2-20 can be seen in the upper left and most of Sh2-17 is in the upper right.

Imaging telescopes or lenses: Intes Micro MN84
Imaging cameras: QSI 583 wsg
Mounts: Astro-Physics 1200 GTO
Guiding cameras: Starlight Xpress Lodestar
Software: PixInsight, Adobe Photoshop CC
Filters: Astrodon H-alpha 3nm narrowband filter, Astrodon RGB filter set
Dates: May 18, 2013
Astrodon H-alpha 3nm narrowband filter: 18×1200″
Astrodon RGB filter set: 72×600″
Integration: 18.0 hours

Author: Dean Salman

AstroPhotography of the day by SPONLI
16 April 2014