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All observing logs that mention sunspot 905

2006-08-25


Location: Billingborough (South Lincolnshire, UK)
From: 2006-08-25 13:50 UT
To: 2006-08-25 13:55 UT
Equipment: Solarscope
Naked Eye
Temperature: 24.1C ...
Dew Point: 9.2C ...
Humidity: 40% ...
Wind Speed: Calm ...
Pressure: 1005.6hPa ...
Notes:

Mostly clear day but with gathering cloud in the afternoon. Before it got too cloudy I took the Solarscope out to do a quick sunspot count.

Sun

From: 2006-08-25 13:50 UT
To: 2006-08-25 13:55 UT

Active area 905 was still visible with no problems. I could see two reasonably large spots very close together, sharing a common penumbra. I could also see a third spot close by, smaller than the other two with no obvious penumbra.

Using a pair of eclipse shades I checked the Sun with the naked eye and could, just, make out a small dark spot which would have been the two bigger spots I mention above.


2006-08-22


Location: Billingborough (South Lincolnshire, UK)
From: 2006-08-22 15:35 UT
To: 2006-08-22 15:40 UT
Equipment: Solarscope
Temperature: 21.5C ...
Dew Point: 11.4C ...
Humidity: 52% ...
Wind Speed: 1.7mph ...
Wind Dir: North West ...
Pressure: 1014.2hPa ...
Notes:

Mostly cloudy day. During a short break in the cloud later on in the afternoon I took the Solarscope out to do a quick sunspot count.

Sun

From: 2006-08-22 15:35 UT
To: 2006-08-22 15:40 UT

Active area 904 was no longer visible, it having gone around the limb of the Sun.

Active area 905 was very easy to see. Today I could see two spots in the area. One reasonably large one with an obvious penumbra and a smaller one with no obvious penumbra.


2006-08-21


Location: Billingborough (South Lincolnshire, UK)
From: 2006-08-21 13:50 UT
To: 2006-08-21 13:55 UT
Equipment: Solarscope
Temperature: 20.3C ...
Dew Point: 13.2C ...
Humidity: 63% ...
Wind Speed: 3.5mph ...
Wind Dir: West North West ...
Pressure: 1012.3hPa ...
Notes:

Mostly cloudy day with a fair bit of wind. During a reasonable break in the clouds I took the Solarscope out to do a quick sunspot count.

Sun

From: 2006-08-21 13:50 UT
To: 2006-08-21 13:55 UT

The count was quite tricky today due to the wind blowing the Solarscope about. However, despite this, I could see a single large spot in active area 904. No detail could be seen, possibly due to the conditions but mostly down to it being very close to the limb (I expect that it won't be visible tomorrow).

A short while later I noticed what appeared to be another spot on the opposite limb. Because it looked like there was a small, shallow "bite" out of the limb I first took it to be an obstruction in the Solarscope somewhere. I rotated the tube and moved things about a little but it stayed in the same place suggesting that it really was a new spot, right on the limb.

I then checked online and a couple of space weather sites had evidence of it but no ID was noted (in fact, SpaceWeather.com were showing it with a question mark against it).

Some time later I found out that it had been given the ID 905.


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Dave Pearson <davep@davep.org>
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