Thursday, April 24, 2008

22 April 2008

Observing LocationPSC
Observational Period1400-1415 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature70°F
WindLight Breeze
HumidityModerate
Barometric Pressure30.26" Hg
Falling
Feels LikeMild

It was foggy and raw this morning but has now cleared off and is quite pleasant.

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

Target Sunspots
ConstellationAri
CategorySolar
Time
yyyymmdd.hhmm
20080422.1400 EDT
Comments
Distance
Light Time
1.01 AU
8m 22s
Angular Size31' 52.0"
Altitude58.9°
Heliographic Latitude
(B0)
-4.93°
Heliographic Longitude
(L0)
275.29°
Parallactic Angle
(P)
-25.31°
Carrington rotation number
(CR)
2069

Spaceweather says Group 911 is gone and another new group may have formed higher up in the northern hemisphere but it is too small for me to detect it.

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



Observing LocationWhite Plains Road at Cross Bronx Expressway, Bronx, NY
Observational Period2015-2030 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature63°F
WindLight Breeze
HumidityModerate
Barometric Pressure30.25" Hg
Rising
Feels LikeMild

TransparencyExcellent
Seeing
InstrumentsNaked-eye - Charlie
Observing PartyCharlie Ridgway

1942 EDTSunset
Civil Twilight begins
2011 EDTCivil Twilight ends
Nautical Twilight begins

TargetIridium 82 Flare
ConstellationCrv
CategorySatellite
Time
yyyymmdd.hhmm
20080422.2017 EDT
CommentsNot Seen
CalSky
Time2017:03 EDT
Alt.12.8°
Az.129.5°
SE
Mag.-0.5
SurfaceSolar Panels

TargetIridium 98 Flare
ConstellationCrv
CategorySatellite
Time
yyyymmdd.hhmm
20080422.2025 EDT
CommentsNot Seen

CalSky says

This is a spare satellite or its status is unknown. Brightness estimate may be unreliable and flare time accurate to a few seconds.
CalSky
Alt.15.7°
Az.132.2°
SE
Mag.-2.4
SurfaceSolar Panels

TargetIridium 41 Flare
ConstellationLib
CategorySatellite
Time
yyyymmdd.hhmm
20080422.2025 EDT
CommentsNot Seen
CalSky
Alt.16.4°
Az.132.8°
SE
Mag.-1.5
SurfaceSolar Panels

I thought I saw a couple of flashes over near Spica, but am not sure of them and they seemed too brief to be an Iridium flare.

2046 EDTNautical Twilight ends
Astronomical Twilight begins
2123 EDTAstronomical Twilight ends