AR1306 on the left and AR1305 on the right. Focal length 2800mm.
AR1302
The next two images of AR1302 used a 1.6x Barlow. Focal length 4480mm.
Granulation and the fibrillar structure of the penumbra is clearly visible.
Derek Francis
Thursday, September 29, 2011
Sunspots today
Exactly the same setup was used as yesterday and the same sunspots are presented in the same order. An 11" SCT fitted with a Baader solar filter was used.
AR1306 on the left and AR1305 on the right. Focal length 2800mm.
AR1302
The next two images of AR1302 used a 1.6x Barlow. Focal length 4480mm.
Granulation and the fibrillar structure of the penumbra is clearly visible.
Derek Francis
AR1306 on the left and AR1305 on the right. Focal length 2800mm.
AR1302
The next two images of AR1302 used a 1.6x Barlow. Focal length 4480mm.
Granulation and the fibrillar structure of the penumbra is clearly visible.
Derek Francis
No comments:
Post a Comment