Daily Archives: December 4, 2013

The Sun Online and solar activity. December 4, 2013

Two C-class flares occurred this morning. A C6.8 flare was observed at 00:56 UT on the east limb near the location where AR 1895 and 1897 are expected to return. AR 1897 produced M-class flares during its previous rotation. A C4.7 flare occurred in AR 1907 on the west limb, peaking at 04:58 UT. This flare was associated with a CME observed in SOHO/LASCO and STEREO-A/COR2 around 06:00 UT after a data gap. This CME is not earth-directed.

Geomagnetic conditions are currently at quiet levels (KDourbes = 2). We expect possible unsettled conditions on December 7 due to the arrival of a fast wind stream originating from a coronal hole that passed the central meridian today.

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 12/04/13
Time UT: 04:00
Exposure 0.8 sec.

With SPONLI Space is getting closer!


Comet Lovejoy through Mörby Castle Ruins


Image Credit & Copyright: P-M Hedén (Clear Skies, TWAN)

This new comet is quite photogenic. Comet Lovejoy, discovered only three months ago, was imaged through ruins of ancient Mörby Castle in Sweden last week sporting a green-glowing coma and tails trailing several degrees. The past few weeks have been an unusually active time for comet watchers as four comets were visible simultaneously with binoculars: ISON, Lovejoy, Encke, and LINEAR. C/2013 R1 (Lovejoy) comet is currently visible to the unaided eye from a dark location. As Monday’s new Moon will provide little glare, the next few days provide a good time to see Comet Lovejoy as it reaches its peak brightness. In two and a half weeks, Comet Lovejoy will reach its closest approach to the Sun at a distance just inside the orbital distance of the Earth.

The Sun Online and solar activity. December 3, 2013

NOAA AR 1913 on the west limb was responsible for most of the flaring activity yesterday. NOAA AR 1908, 1909 and 1912 are likely to cause C-flares. The chance for C-flares is around 50%, the chance for M-flares around 15%. X-flares are unlikely.The solar wind speed is around 400 km/s. A magnetic structure in the slow solar wind carries a negative magnetic z-component resulting in unsettled geomagnetic conditions.  A coronal hole located just above the solar equator approached the central meridian. This coronal hole might influence the earth magnetosphere in a few days.

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 12/03/13
Time UT: 04:30
Exposure 0.8 sec.

With SPONLI Space is getting closer!


M8: Lagoon nebula


Scope: FLT110 apo & F/F type4 @ f/5.6

Camera: canon 40D modified
Mount: NEQ6 pro with autoguider
Exposure: 12*5min iso 1000
Autor: Mohammad Nouroozi

The Lagoon Nebula (catalogued as Messier 8 or M8, and as NGC 6523) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as an H II region.

The Lagoon Nebula was discovered by Giovanni Hodierna before 1654[4] and is one of only two star-forming nebulae faintly visible to the naked eye from mid-northern latitudes. Seen with binoculars, it appears as a distinct oval cloudlike patch with a definite core. A fragile star cluster appears superimposed on it.
AstroPhotography of the day by SPONLI
December 04, 2013
We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.