The Sun
A class GII Star on an outer limb of the Milky Way Galaxy
 
Observed November 17, 2001  
Orion ST80
80/500 Chinese Refractor
28mm William Optics Digital Camera Eyepiece
2001:11:17 16:29:42
Orion ST80
80/500 Chinese Refractor
28mm William Optics Digital Camera Eyepiece
2001:11:17 16:27:06

Here are sunspot regions 9704 and 9697 (right).

Meade LX90 203mm SCT
Meade 8.8mm UWA eyepiece

9704 was stacked using 34 low resolution images.

Observed October 6, 2001 - A new Sunspot, region 9653, was numbered today, however it is located in a region which has been numbered before. Sunspot regions numbered left to right.
Click for larger image

Regions
9645

9641

Click for larger image Regions
9653
9650
9649
9648

What is a sunspot?
A sunspot is an area in the Sun's photosphere that contains a concentrated magnetic field which makes it considerably cooler than the rest of the visual surface of the Sun.  The dark spots in the photographs above are sun spots.  Most sunspots are larger than the Earth and their magnetic fields are also larger than Earth's magnetic field.  These magnetic fields choke the heat and energy in the sunspot area causing these areas to cool to 3230°C (5850°F), whereas the normal surface or photosphere has a temperature of 5510°C (9950°F).  Most of the light that reaches the Earth emanates from the photosphere which is the lowest, densest atmosphere of the Sun.  The magnetic field is strongest in the darker parts of the sunspots called the umbra. The field is weaker and more horizontal in the lighter part called the penumbra.

What are Faculae?
The white areas in the photograph are faculae and they are bright, hot areas also of a magnetic nature but the field is concentrated in much smaller bundles than in sunspots. While sunspots make the sun look darker the faculae make it look lighter.

These photographs were taken using a Nikon Coolpix 995 digital camera with a William Optics digital camera eyepiece in a Meade LX90 203mm SC Telescope with a Baader film solar filter.