2010 07 29 – NOAA 11092

2010 July 29, 1901 UT
Solar h-alpha, NOAA 11092, 57x mag

PCW Memorial Observatory, Zanesville, Ohio USA – Erika Rix

Temp: 32C, Humidity 61%-30%
Seeing: Wilson 4, Transparency: 5/6
Scattered 60%, slight breeze, Alt: 61.4, Az: 228.2

DS 60mm Maxscope, LXD75, 21-7mm Zhumell
H-alpha sketch created scopeside with black Strathmore Artagain paper, white Conte’ crayon and pencil, Derwent charcoal pencil, black oil pencil.

One day after that magnificent eruption on the southeastern limb (http://www.spaceweather.com/archive.php?view=1&day=29&month=07&year=2010), we’re left with no significant prominences, but the surface features are abundant!  I wanted to zoom in on a feature instead of doing a full disk sketch, so chose active region 11092 as my target. The bright line of plage had caught my eye, and together with the prominent sunspot near the end of it, it created quite a scene.

This new active region poses a threat for C-class flares according to Spaceweather. In fact there was another eruption around 01:00 UT this morning!  Click here to see amazing footage of it from the Solar Dynamic Observatory:  http://www.spaceweather.com/swpod2010/29jul10/eruption29jul10.gif?PHPSESSID=eaoh9nq80nb718gq45s69lpvp2

Active region 11089 was very prominent as well on the western edge of the Sun. There were two very large filaments stretching across the northern hemisphere and several smaller ones scattered across the entire disk.

Seeing was nearly perfect today, although I had to wait long periods in between the scattered clouds.  I kept the magnification at 57x. I used a smaller sheet of Strathmore, but made up for it by filling in the entire piece with this active region, allowing me to add more details to the sketch.


~ by Erika Rix on July 29, 2010.

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