Daily Archives: May 7, 2014

The Sun Online and solar activity. May 7, 2014

Catania region 36 (NOAA AR 2051) as it turned around the west limb, kept determining solar activity for the past day. It produced another M1 flare peaking at 22:09 UT and some further C flares. A partial halo CME, with first appearance in LASCO C2 data at 17:36 UT, was associated with the C flare peaking at 17:35 UT. The bulk of the mass was expelled in western direction from the Sun Earth line, with a projected speed of around 390 km/s. It will therefore most likely not be geoeffective though some slight glancing blow effects around May 12 can not be fully excluded. With Catania region 36 (NOAA AR 2051) departing around the west limb the most dominant source of activity of the last days is disappearing. C-flaring should be expected from regions 42 and 43 (NOAA AR 2055 and 2056) which have been active before rotating onto the visible disc, though they have been mostly quiet recently. An isolated M flare is still possible.Solar wind is back at normal conditions with wind speed dropping steadily over the last day from around 380 km/s to about 340 km/s. Total magnetic field also dropped from around 5nT at the beginning of the reporting period to just above 2nT currently. Bz was predominantly positive initially but is now variable within the -3.5nT to 2nT range. No signatures of the May 3 CME have been registered. Solar wind conditions are first expected to remain as they are over the next day but speeds are later expected to increase due to influence of a recurrent coronal hole.
Geomagnetic activity has been quiet throughout the reporting period and is again expected to remain so over the next day. Afterwards, increase to unsettled conditions is expected to accompany the coronal hole high speed stream.


Curiosity Inspects Mt. Remarkable on Mars 


Image Credit: 
NASA, JPL-Caltech; Additional Mosaic Processing: Kenneth Kremer & Marco Di Lorenzo

What has the Curiosity rover come across on Mars? Dubbed Mount Remarkable, the rolling robot has chanced upon this notable 5-meter tall mound during its continuing journey around and, eventually, up 5.5-kilometer high Mt. Sharp. Unsure of the density of the surrounding layered sandstone, the human team on Earth has instructed the car-sized rover on Mars to drill into a rock on the side of Mt. Remarkable to investigate. Quite possibly, water involved in creating the dense sandstone could have helped to support ancient life on the red planet. Mt. Sharp, the unusual central peak of Gale Crater, has a similar base-to-peak height as Earth’s Mt. Everest.

NASA APOD 07-May-14

Dumbbell Nebula in Vulpecula

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The Dumbbell Nebula (also known as Apple Core NebulaMessier 27M 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at a distance of about 1,360 light years.

This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a popular observing target in amateur telescopes.

Imaging telescopes or lenses: Tecnosky Achromatic 152/900 f/5
Imaging cameras: Atik 383L+ mono
Mounts: Losmandy G11
Guiding telescopes or lenses: Tecnosky Achromatic 152/900 f/5
Guiding cameras: Starlight Xpress Lodestar
Software: DeepSkyStacker, Maxim DL, photoshop
Filters: OIII 12nm, Astronomik Ha
Accessories: OAG artigianale Turi Lo Vecchio
Astronomik Ha: 33×900″ -15C bin 2×2
OIII 12nm: 31×900″ -15C bin 2×2
Integration: 16.0 hours
Darks: ~21
Flats: ~21
Bias: ~21
Mean FWHM: 3.00

Author: Francesco Tallarico
AstroPhotography of the day by SPONLI 07 May 2014