Monday, June 30, 2008

30 June 2008

Today is the 100th anniversary of the Tunguska Event. Spaceflight Now story



Observing LocationCT
Observational Period1000-1015 EDT
Atmospheric Conditions
Cloud CoverScattered to Broken Clouds
Temperature74° F
WindHigh
Humidity
Barometric Pressure29.76" Hg
Rising
Feels LikeWarm

The humidity in the air makes it feel cool when you get out of the sun.

TransparencyGood
SeeingII
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080630.1000 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 30.7"
Altitude37.3°
Heliographic Latitude
(B0)
2.85°
Heliographic Longitude
(L0)
85.26°
Parallactic Angle
(P)
-2.75°
Carrington rotation number
(CR)
2071

Nothing Seen
I don’t even see anything on the back side of the sun on Space Weather.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



Sunspots Observed

I looked for sunspots on two thirds of the days this month and didn't see any although there were some appearing in the SOHO images.

Observing Hours for the Year 2008

 DayNightTotal
HoursDaysAvgHoursDaysAvgHoursDaysAvg
Jan2.2590.252.7550.555.00130.38
Feb3.2590.368.2571.1811.25120.94
Mar5.25100.538.50120.7113.75160.86
Apr6.25190.335.75 70.8212.00190.63
May6.50180.362.25 50.45 8.75180.49
Jun5.25200.2612.00 81.5017.25210.82
TOTAL28.75850.3439.50440.9068.251000.68

I was surprised that I got as much observing time in this month as I did. I knew I was getting a lot of sessions but they were mostly short ones to observe the Sun or an Iridium flare. They and the few Moon sessions added up.

Climate Summary for June 2008

We had one record-breaking high temperature this month and only 11 days when the mean temperature was below normal. There were 10 days when the low was below normal and 15 days when the high was above normal.

There were 16 days with more than a trace of precipitation.

There have been more than normal cooling degree days all but 11 days this month.