Antilhue - Chile

Sun on 02.02.2003
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Image Data

Designation Sun
Object type Our star
Description A normal day on the sun... the solar maximum has passed and only a few sunspots are seen in visual wavelengths.  Granulation is obvious.  A more promising sunspot group is rotating into view on the left.  Featuring an apparent visible disk diameter of over 32 arcminutes, the sun was just a little too large to fit on the 10mm width of the CCD chip in this prime focus image.
Exposure Ha 0.1 s @ -5C, best-of-25 single exposure
Camera SBIG ST-10XE + SBIG CFW-8  with Custom Scientific 3nm H-Alpha Filter
Optics Astro-Physics AP155EDFS @ f/7.2  (prime focus) + Baader Astro-Solar film (visual)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, Adobe Photoshop 6.0
Location - Date - Time San Esteban (Chile) - 02Feb2003 - 14:16 UTC
Conditions Transparency 5,  Seeing 5, Temperature +25 C