17 May 2007

17 May 2007

Observing LocationVP
Observational Period1000-1015 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Temperature61°F
WindLight Breeze
HumidityModerate
Feels Likepleasant

There are some patches of cloud but they are small and widely scattered. The clouds are supposed to build through the day and there is a possibility, though small, of some rain this afternoon.

TransparencyGood
SeeingII
Instruments Canon 15x50 IS binocular w/Baader AstroSolar filter film - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationTau
CategorySolar
Time
yyyymmdd.hhmm		20070517.1000 EDT
Comments
Distance
Light Time		1.011282AU
8ms
Angular Size31'40.9"
Altitude47.8°
Heliographic Latitude
(B0)		 -2.42°
Heliographic Longitude
(L0)		 97.80°
Position Angle
(P)		 -20.36°
Carrington rotation number
(CR)		2056

 Groups SpotsR
North1 5 15
South0 0 0
Total1 5 15
R = (Groups * 10) + Spots)

Group 956
Heliographic Latitude 11°
Heliographic Longitude 64°
Carrington rotation number
(CR)		2056
Mcintosh SystemDso
I see two main spots side by side, surrounded by penumbra, and an arc of three smaller spots preceding them and a little bit higher on the disc. Very nice.


Observing LocationBPO
Observational Period1730-1930 EDT
Atmospheric Conditions
Cloud CoverOvercast
Temperature
WindGentle Breeze
Humidity
Feels LikeA little nippy

When I went outside this evening there were some breaks in the clouds and it was bright to the west so I decided to go downtown to try to see the crescent Moon and Mercury. The weather got worse and I finally left before the sun set with heavy overcast out to the west.

Transparencynone
Seeing
Instruments Canon 15x50 IS binocular w/Baader AstroSolar filter film - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationTau
CategorySolar
Time
yyyymmdd.hhmm		20070517.1730 EDT
Comments
Distance
Light Time		1.011359 AU
8ms
Angular Size31'40.7"
Altitude16.5°
Heliographic Latitude
(B0)		 -2.38°
Heliographic Longitude
(L0)		 93.12°
Position Angle
(P)		 -20.26°
Carrington rotation number
(CR)		2056

The only visible sunspot group is too complex for me to get a count of the spots through the moving clouds so I just appreciated the view.

 Groups SpotsR
North1
South0 0 0
Total1
R = (Groups * 10) + Spots)

Group 956
Heliographic Latitude °
Heliographic Longitude °
Carrington rotation number
(CR)
Mcintosh System
My memory of the location of the group does not agree with the disc orientation I see in Helio and I don’t know if my memory is faulty of if I am using the program improperly.

posted by Charlie at 11:58

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