The Dutch Observatory

July 17, 2016 on 2:58 pm | In Sun | Comments Off

Clear Skies with good seeing. Trying to stay a bit cool, I started the session as soon as the Sun came above my neighbor’s tree at 21 degrees.  Three active regions today.  Ar2565 has increased to 320 millionths and AR2567 to 200.  We have a total of 17 Sunspots.  I took again the C11 out today for a close up of AR2565, 67 at an effective focal length of 4200 mm.  The two combined are over 500 millionths, a good size.  Today full disk images as well as close up in all three wavelengths.