Daily Archives: April 27, 2014

The Sun Online and solar activity. April 27, 2014

NOAA 2038 produced the only C flare of the period (C2 peaking at 14:59UT), just before rounding the west limb. Current imagery shows 6 sunspot groups, most having magnetically simple configurations. One region developed overnight in the northwest quadrant, while two other regions rounded the east limb. There are also a few 15-20 degrees long filaments visible near the central meridian and in the southwest quadrant. C-class flares remain possible.   Solar wind speed decreased further from around 380 to 350km/s. Bz varied
between -4 and +3nT, and became predominantly northward around midnight. The particle stream from a small equatorial coronal hole that passed the central meridian early on 24 April, is expected to arrive at Earth later
today or tomorrow.
The geomagnetic field has been quiet and is expected to remain so. Locally, a brief active interval is possible from the effect of the coronal hole.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 300 frames
Date: 04/27/14
Time UT: 14:00
Exposure 1/500 sec.

With SPONLI Space is getting closer


SuitSat-1: A Spacesuit Floats Free 


Image Credit: ISS Expedition 12 Crew, NASA

Explanation: A spacesuit floated away from the International Space Station eight years ago, but no investigation was conducted. Everyone knew that it pushed by the space station crew. Dubbed Suitsat-1, the unneeded Russian Orlan spacesuit filled mostly with old clothes was fitted with a faint radio transmitter and released to orbit the Earth. The suit circled the Earth twice before its radio signal became unexpectedly weak. Suitsat-1continued to orbit every 90 minutes until it burned up in the Earth’s atmosphere after a few weeks. Pictured above, the lifeless spacesuit was photographed in 2006 just as it drifted away from space station.

NASA APOD 27-Apr-14

The Southern Cross

189319f393c56f9b04878bd567833180.1824x0_q100_watermarkThe Southern Cross is a cross-shaped asterism very close to the neighboring constellation of Centaurus.  Southern Cross is the smallest of the 88 modern constellations. Сrux is easily visible from the southern hemisphere at practically any time of year. It is also visible near the horizon from tropical latitudes of the northern hemisphere for a few hours every night during the northern winter and spring.  Crux is exactly opposite to Cassiopeia on the celestial sphere. Three of the five main Crux stars—Acrux, Mimosa, and Delta Crucis—are co-moving B-type members of the Scorpius-Centaurus Association, the nearest OB association to the Sun.

Imaging telescopes or lenses: Nikon 85mm f/1.8
Imaging cameras: Canon 1100D (unmodified)
Software: Craig Stark Nebulosity
Dates: April 22, 2014
Frames: 18×360″
Integration: 1.8 hours

Author: Jonah Scott

AstroPhotography of the day by SPONLI
27 April 2014