Monthly Archives: July 2013

Solar flares and prominences, 07/28/13

Local time:7/28/2013 at 15:39:59

A solar prominence (also known as a filament) is an arc of gas that erupts from the surface of the Sun. Prominences can loop hundreds of thousands of miles into space. Prominences are held above the Sun’s surface by strong magnetic fields and can last for many months. At some time in their existence, most prominences will erupt, spewing enormous amounts of solar material into space.

Equipment: Coronado 90 + SBIG 8300s + LX75
Editor: PS
Date: 07/28/13
Time GMT: 23:30:00
Exposure 0.1 sec.

Observatory SPONLI

July18th: Two Great Lunar Craters

Two great Lunar Craters: Tycho and Copernicus
This is a great night to observe two of the greatest craters on the Moon, Tycho and Copernicus.

Local time:7/17/2013 at 22:43:23Tycho is towards the bottom of Moon in a densely cratered area called the Southern Lunar Highlands. It is a relatively young crater which is about 108 million years old. It is interesting in that it is thought to have been formed by the impact of one of the remnents of an asteroid that gave rise to the asteroid Baptistina.


Local time:7/17/2013 at 22:40:50Copernicus is about 800 million years old and lies in the eastern Oceanus Procellarum beyond the end of the Apennine Mountains. It is 93 km wide and nearly 4 km deep and is a clasic “terraced” crater. Both can be seen with binoculars.


The Trifid nebula B85

Sample images of our first remote users


Dark Nebula B85 in Sagittarius

Across the face of the Trifid nebula are a set of dark bands dividing the nebula into four parts, very dark and distinct against the emission nebula background, unable to see any trace beyond the nebula

14 of July 2013

Active regions on the sun 13.07.13

Active regions on the sun 13.07.13

Local time:7/13/2013 at 13:19:27Equipment: Coronado 90 + SBIG 8300s + LX75 Editor: FS
Date: 13.07.13
Time 22:00:00 GMT
Exposure 0.1 seс

Over the past 6 hours state of the magnetosphere was relatively calm. A magnetic storm is expected on July 16 and could extend to July 19, gradually decreasing in intensity.
The current solar activity:
Radio flux (10.7 cm) = 118
The average planetary A-index = 9
The average planetary Kp-index = 1 (7 nT)Local time:7/13/2013 at 13:19:27








Area(Square Megametres)
1 – 633.9
2 – 378.8
3 – 743.0
4 – 567.3
5 – 193.6

Observatory Sponli

Solar activity 13.07.2013

The latest images of the Sun

Equipment: Coronado 90 + SBIG 8300s + LX75
Editor: FS
Date: 12/07/13
Time 20:30:00 GMT
Exposure 0.1 sec.

Tranquil state of the magnetosphere. However, the disturbances are possible in the next 24 hours.
Radio flux (10.7 cm) = 113
The average planetary A-index = 18
The average planetary Kp-index = 2 (15 nT) According to the satellite GOES-15, the Sun recorded a weak solar flare.


Area of sunspots (Square Megametres)
1 – 169.5
2 – 130.9
3 – 485.1
4 – 283.1