Page 85 - BBC Sky at Night Beginners Guide to Astronomy - 2017 UK
P. 85

WHAT TO SEE





































                                                                  FILAMENTS
                                                               ❮
                                                               A fi lament is the same as a prominence, except that
                                                               whereas prominences are seen outside the Sun’s disc,
                                                               fi laments are seen against the disc – which makes them a
                                                               little harder to pick out. Best seen with a PST.




                                                                            FACULAE
                                                                            Latin for little torches, these bright
                                                                            patches of the photosphere are found
                                                                            where sunspots have been or are
                                                                            going to appear.

























                                                                                       FLARES
                                                                                    ❮
                                                                                   Flares are the most explosive
                                                                                   features on the Sun and are
                                                                                   associated with sunspots. They
                                                                                   are believed to be caused by
                                                                                   sudden changes in the Sun’s
                                                                                   magnetic fi eld. They are best
                                                                                   seen with a PST.




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