10 April 2006

Observing Location	Met Oval I made another series of GPS observations after doing my solar observing. This time there was a lot more variability in both latitude and longitude. Time Waypoint Latitude Longitude 1710 EDT 516 40° 50.313' -73° 51.575' 1715 EDT 517 40° 50.306' -73° 51.594' 1720 EDT 518 40° 50.305' -73° 51.590' 1725 EDT 519 40° 50.305' -73° 51.583' 1730 EDT 520 40° 50.306' -73° 51.588' 1735 EDT 521 40° 50.310' -73° 51.586' 1740 EDT 522 40° 50.304' -73° 51.586' 1745 EDT 523 40° 50.307' -73° 51.584' 1750 EDT 524 40° 50.306' -73° 51.581' 1755 EDT 525 40° 50.309' -73° 51.589' 1800 EDT 526 40° 50.305' -73° 51.595' 1805 EDT 527 40° 50.303' -73° 51.585' 1810 EDT 528 40° 50.304' -73° 51.594' 1815 EDT 529 40° 50.310' -73° 51.592' Averaged 40° 50.307' -73° 51.587' A scatter plot of recorded fixes The magenta square is the average of all positions. Plot of latitude variation over time Plot of Longitude variation over time
Observational Period	1700-1815 EDT
Atmospheric Conditions	There was some light haze and thin clouds around and over the sun but it was easily visible and the image was steady. There was a strong breeze but it felt good sitting in the sun. But as soon as the sun got near the roof of a nearby apartment building the temperature dropped rapidly and it was chilly by the time I had finished my observations. Officially the sun had not set yet. By then it was also mostly overcast but by the time I got out of dinner around 1900 EDT it was partly cloudy. Transparency Fair Seeing Good
Instruments	Canon 15x50 IS binocular - Charlie
Observing Party	Charlie Ridgway

Target	Sunspots
Constellation	Peg
Category	Solar
Time	20060409.1730 EDT
Comments	869 SW Quadrant This spot is near the midline but I think it is below the equator. There are two fairly equal spots in the group/ 870 NE Quadrant I now see two spots on the trailing limb. They are also close to the equator but I think they are north of it. The P spot is lower than the smaller F spot. ? NE Quadrant This is an un-numbered group that is developing east of the meridian and I think above the equator. I can see one pore there.   Groups Spots R North 2 3 23 South 1 5 12 Total 3 5 35 Groups * 10 + Spots = Relative Sunspot Number