Daily Archives: November 30, 2013

The Sun Online and solar activity. November 30, 2013

NOAA AR 1907 produced the only C-flare of yesterday November 30. We forecast a probability for C-flares slightly above 50%. A partial halo CME was detected by CACTus. The CME appeared in the field of view of SOHO/LASCO C2 around 19:00, November 29. There was no clear on disk signature of the eruption. We can assume that the CME is back sided.The solar wind speed increased to 350 km/s. The total interplanetary magnetic field (IMF) shows also an increase since yesterday. The solar wind
structure passing near the L1 point can be possibly linked to the northern coronal hole that passed the central meridian on November 24. The plasma pressure although was not strong enough to cause a geomagnetic disturbance. Similar for the z-component of the IMF which was not strongly negative. The
planetary Kp stayed below 4.   We expect quiet geomagnetic conditions with K lower than 4.

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 11/30/13
Time UT: 14:30
Exposure 0.8 sec.

With SPONLI Space is getting closer!


Surprising Comet ISON

Image Credit: NASA, ESA, SOHO – Video Editing: Babak Tafreshi (TWAN)

After failing to appear for Sun staring spacecraft at perihelion, its harrowing closest approach to the Sun, sungrazing Comet ISON was presumed lost. But ISON surprised observers yesterday as material still traveling along the comet’s trajectory became visible and even developed an extensive fan-shaped dust tail. Edited and processed to HD format, this video (vimeo, youtube) is composed of frames from the SOHO spacecraft’s coronographs. It follows the comet in view of the wide (blue tint) and narrow (red tint) field cameras in the hours both before and after perihelion passage. In both fields, overwhelming sunlight is blocked by a central occulting disk. A white circle indicates the Sun’s positon and scale. With questions to be answered and the tantalizing possibility that a small cometary nucleus has survived in whole or part, surprising comet ISON will be rising before dawn in planet Earth’s skies in the coming days.

Evolution of the space food

Food evaluations are conducted approximately eight to nine months before the flight. During the food evaluation sessions, the astronaut is given the opportunity to sample a variety of foods and beverages available for flight. A pack of information is given to each astronaut to use in planning their personal preference menus. Included in the packet is a standard menu, training menu, past flight menus the astronaut has chosen, and the baseline shuttle food and beverage list.

Exhibition of the history of space food, organized by agency NASA.