Taken 21-Aug-17
Visitors 24

13 of 14 items
Photo Info

Dimensions3972 x 2648
Original file size303 KB
Image typeJPEG
Color spaceAdobe RGB (1998)
Date taken21-Aug-17 13:20
Date modified25-Aug-17 17:09
Shooting Conditions

Camera modelNIKON D500
Focal length420 mm
Focal length (35mm)630 mm
Max lens aperturef/4
Exposure1/13 at f/8
FlashNot fired
Exposure bias+4 EV
Exposure modeManual
Exposure prog.Manual
ISO speedISO 100
Metering modePattern
Sun Totality

Sun Totality

Studying the mysteries of the corona is not easy, for the same reason that looking at the sun itself isn't easy: the brilliance of the solar fires washes out everything else. Coronagraphs — black masks fitted in telescopes and other observing instruments — can cover up the solar disk and allow astronomers to focus just on the plasma. But diffraction of the incoming light makes the pictures imperfect. It is only during a total eclipse, when the moon itself acts as the greatest coronagraph of all, that a truly good look at the corona becomes possible.