Starship Asterisk*

Sinan İpek wrote:
Any reason for the 11-years solar period?

http://en.wikipedia.org/wiki/Solar_cycle#Phenomena.2C_measurement.2C_and_causes wrote:

[b][color=#0000FF]Diagram of temporal changes in Earth's magnetic declination field.[/color][/b]

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<<Dynamo theory proposes a mechanism by which a celestial body such as the Earth or a star generates a magnetic field. The theory describes the process through which a rotating, convecting, and electrically conducting fluid can maintain a magnetic field over astronomical time scales.

The basic causes of the solar variability and solar cycles are still under debate, with some researchers suggesting a link with the tidal forces due to the gas giants Jupiter and Saturn, or due to the solar inertial motion. Another cause of sun spots can be solar jet stream "torsional oscillation".

Patterns have been noted in solar cycles. For example, the Waldmeier effect is the phenomenon that cycles with larger maximum amplitudes tend to take less time to reach their maxima than cycles with smaller amplitudes; there is also a negative correlation between maximum amplitudes and the lengths of earlier cycles, which allows a degree of prediction.>>

APOD Robot wrote: Black Sun and Inverted Starfield

Explanation: Does this strange dark ball look somehow familiar? If so, that might be because it is our Sun. A detailed solar view was captured originally in a very specific color of red light, then rendered in black and white, and then color inverted. Once complete, the resulting image was added to a starfield, then also color inverted. Visible in the above image of the Sun are long light filaments, dark active regions, prominences peaking around the edge, and a moving carpet of hot gas. The surface of our Sun has become a particularly busy place over the past two years because it is now nearing Solar Maximum, the time when its surface magnetic field is wound up the most. Besides an active Sun being so picturesque, the plasma expelled can also become picturesque when it impacts the Earth's magnetosphere and creates auroras.

henrystar wrote:Is the star field correct for some date?