Observing Log for 2006-11-19
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2006-11-19


Location: Billingborough (South Lincolnshire, UK)
From: 2006-11-19 04:29 UT
To: 2006-11-19 05:47 UT
Equipment: Naked Eye
Temperature: -0.1C ...
Dew Point: -2.2C ...
Humidity: 86% ...
Wind Speed: Calm ...
Pressure: 1012.3hPa ...
Notes:

After getting my dates wrong yesterday, and having seen that the forecast was good again for this morning, I decided to have another go at getting up early and observing an outburst of Leonids activity that was predicted for around 04:45 UT.

The sky wasn't quite as clear as yesterday morning's session and, to start with, there was some thin cloud hanging around to the west but that cleared away during the session.

Leonids watch

From: 2006-11-19 04:29 UT
To: 2006-11-19 05:47 UT

I was set up in the garden, with chair and notebook, by 04:29 UT. I watched solidly from the chair for 1 hour. The following is a list of what I managed to catch along with the times that I saw them:

04:33 UT: Sporadic. West to east. Very short. Just south of Auriga.

04:36 UT: Leonid. Very short. Very fast. Through Auriga.

04:50 UT: Noticed the whole sky flash, just like I noted at 05:31 UT yesterday. Suspect it probably is a bird scarer in one of the fields around me.

04:55 UT: Leonid * 2. Almost together. Both short, fast and not very bright.

04:57 UT: Sporadic. North to south in Cancer. Short, fast and faint.

05:00 UT: Leonid. Short and fast. Through Auriga.

05:12 UT: Leonid. Short, fast and faint. Through Perseus.

05:13 UT: Leonid. Short, fast and bright. Left a visible trail that lasted a second or so. Just west of Leo.

05:14 UT: Leonid. Short and faint. Just south of Auriga.

05:18 UT: Satellite. Travelling roughly south/east to north/west through the zenith.

05:19 UT: Satellite. Travelling roughly south/west to north/east through the zenith. About the same speed and brightness as the previous one.

By 05:30 UT tiredness and the cold were really starting to get to me. Given that there'd been no obvious sign of the outburst I decided to pack up earlier than I'd planned and go and warm up. However, while packing up and moving things back into the office I managed to catch two more Leonids:

05:39 UT: Leonid. Short and very bright. Through Cassiopeia. Left a short wide trail that lasted a good couple of seconds.

05:47 UT: Leonid. Short and bright. Through Perseus.

If there was an outburst I didn't see any evidence of it. During this session I counted 9 Leonids — the same number as yesterday and over a similar period of time. I also counted 2 sporadics and noticed 2 satellites.

Location: Billingborough (South Lincolnshire, UK)
From: 2006-11-19 12:40 UT
To: 2006-11-19 12:45 UT
Equipment: Naked Eye
Solarscope
Temperature: 8.2C ...
Dew Point: 4.4C ...
Humidity: 77% ...
Wind Speed: Calm ...
Pressure: 1011.3hPa ...
Notes:

Very clear day. Took the Solarscope out to do a quick sunspot count.

Sun

From: 2006-11-19 12:40 UT
To: 2006-11-19 12:45 UT

The single spot in active area 923 still looked quite impressive but also even more foreshortened due to it being much closer to the limb of the Sun. I also checked with the naked eye (via eclipse shades) and, for the first time since I first observed it I was unable to see it.

I could also see 1 spot in active area 924 and 1 in active area 925.


Page last modified: 2013-04-09 09:19:19 UT
Dave Pearson <davep@davep.org>
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