Hydrogen Alpha Sun
[Sun]
NOTES
DATE:
 Sunday, August 15, 2004
TIME:
 5:52 pm EDT
CAMERA:
 Phillips ToUcam Pro (640x480)
LOCATION:
 Kalamazoo Nature Center - Owl Observatory
INSTRUMENT:
 Tele Vue Pronto w/ Coronado SolarMax 40 BF-10 (with Meade 2x Barlow lens)
PROCESSING:
 Two sets of images acquired with K3CCDTools.
  • 5 frames per second
RegiStax 2.0
  • Aligned and stacked 17 of 300 images.
  • Gamma adjusted to 0.4
 Further enhancements made with Adobe Photoshop 7.0
  • Two sets aligned and merged
  • Colorized
  • Unsharp masking (1.5 pixels to 60%)
COMMENTS:
 Another one of my first decent images of the Sun in Hydrogen Alpha.  Gave up on trying to obtain disk details and prominences in one set of images.  Took one shorter exposure for disk detail and a longer exposure for prominences.   Notice the two large sunspots with their dark umbra and surrounding penumbra.  The spot toward the bottom is probably dust.  This imaged placed first in the Webcam/Digital Camera category at NIAG Fest on April 23, 2005.