These images of the 2010 July 11 Total Solar Eclipse were taken by BAA member Richard Blake-Reed at Hao Atoll using a Nikon D80 + Sigma 500mm zoom lens at infinity, all shots F22 with ISO 400.
Here are three more great images of the Sun from BAA members.
The full solar disk in hydrogen-alpha taken on 2nd July 2010 by Paul Rix in the USA. The image shows the dominent sunspot on the disk this week AR1084 in the southern hemisphere (the image is inverted with south at the top). Also a long dark filament is clearly on the disk in the northern hemisphere which has persisted for some days. If this filament reaches the solar limb it will appear as a huge prominence.
The second image is by Dave Tyler in the UK showing AR1084 again in hydrogen-alpha appearing as a huge swirling whirlpool with a dark core.
The third image, also by Dave Tyler, taken on the 3rd July 2010, shows the long dark filament in the northern hemisphere.
The BAA Solar Section aims to promote every aspect of solar astronomy and to provide information and encouragement in relation to the study of the Sun.
Solar Section Objectives
- Provide relevant and up-to-date information and advice in relation to the Section’s programme of work
- Encourage the exchange of information and expertise and the association of observers for mutual help
- Promote solar study and observation for beginners
- Circulate current solar observational information and data
- Explore and develop modern techniques for both solar observation and data recording.
Solar Section Program of Work
Counts of Active Areas and Relative Sunspot Numbers
152mm (6-inch) whole disk drawings
Drawings of individual spots and groups
Bright faculae in the sunspot zones and polar faculae
Photographs of the solar disk and of individual spots and groups
Observations in hydrogen-alpha of prominences, filaments, flares
Observations in Calcium K emission of active area features
Observations of solar radio emissions (effects of solar flares on terrestrial radio transmission and on the Earth’s magnetic field)
If you wish to make a report on your solar observing, please visit the BAA Solar Section website where monthly report forms, hydrogen alpha forms and disc drawing form masters can be downloaded.
For observing naked-eye spots a safe solar filter (such as Welders glass, shade 14, mylar film, or inconel filter) is a necessary. DO NOT USE ANY OTHER MATERIAL no matter how dark it appears. If in doubt about the safety of any solar filter contact the Director for advice before using it.
The Director of the BAA Solar Section is Lyn Smith.
Note: there is a total solar eclipse next week on 11 July. This eclipse is visible from the South Pacific
This great full disk image of the sun was taken by Pete Lawrence in Selsey on the 11th June 2010 in Hydrogen Alpha. The image shows 2 bright areas on the disk towards the left (west) which are sunspot groups AR1080 (south) and AR1081 (north). The image also shows prominences on the limb and ejecta of superheated plasma rising away from the NW limb (uppper right of the disk). The darker marks on the disk are filaments which are prominences seen against the solar disk as oppossed to the limb, hence they appear dark rather than bright against the dark background of space.