15 July 2008

Observing Location	MO
Observational Period	2130-2315 EDT
Atmospheric Conditions	Cloud Cover Isoloated Clouds to Scattered Clouds Temperature 76° F Wind Gentle Breeze Humidity Moderate Barometric Pressure 30.12" Hg Rising Feels Like Mile It doesn’t feel as moist as the barometer says it is. By the time I got set up and found the Moon it was behind a light strato-cumulus cloud. I had to wait out clouds several times, saw no stars, and only saw three moons of Jupiter. I had to keep adjusting focus. Transparency Good Seeing II
Instruments	SAR: Coulter CT-100 Newtonian reflector - Charlie Celestron Omni 20mm (21x) Celestron Omni 2x Barlow
Observing Party	Charlie Ridgway

Target Jupiter Constellation Sgr Category Planet Time yyyymmdd.hhmm 20080715.2145 EDT Comments I had checked Starry Night this afternoon and thought it showed four moons but Planetarium says Io was transiting. Ganymede was about three planet diameters away to the west and calisto about five planet diameters away to the east. Europa was above the line from Ganymede through the planet to Calisto and less than a diameter away to the west. Object Class Classical Planet Elongation 172.7° E Distance Light Time (from Earth) 4.17 AU 34m 39s Distance (from Sun) 5.18 AU Angular Size 47.3" x 44.2" Magnitude -2.7 Central Meridian I/II 293°/235° Altitude 16.4° Moons Starry Night Starter graphic

Target Moon Constellation Sgr Category Lunar Time yyyymmdd.hhmm 20080715.2150 EDT Comments The Moon was just above the spout of the teapot but I could only find one star and think it was probably 3 Sgr (Mag 9.87). Virtual Moon Atlas graphic To the naked eye the western limb of the Moon looked flattened but the Moon appears close to being full. Lunation 1058 Phase Waxing Gibbous Age Distance Light Time (from earth) ,000 km s Elongation ° % Illuminated 95.3% Morning Terminator Colongitude (λ E) 65.9° Evening Terminator Colongitude (λ W) 245.9° Libration in Latitude 6° 01' Libration in Longitude -0° 50' Magnitude -12.55 Angular Size 29.70' Altitude 19° 02' Virtual Moon Atlas graphic Terminator In Shadow Feature Diameter/Length; Class In Sunlight   Philolaus 70; 1 >>>   Babbage 143,; Extremely Old >>>   J. Herschel 165; Extremely Old >>>   Mons Rumker 70 >>> <<< Lichtenberg 20; Young >>>   Briggs 37; Young >>> <<< Solevcus 43; 1 >>>   Hermann 15 >>>   Damoiseau 36; Very Old >>> <<< Grimaldi 172, 5 >>>   Sirsalis 42; 1 >>>   Byrgies 87; 3 >>>   Schicard 206; 5 >>>   Wargentin 84; 5 >>>   Nasmyth 76; Very Old >>>   Phocylides 121; 3 >>>   Senger 67; 3 >>>   Bettinius 71; 1 >>> Also identified: Oceanus Procelarum Harpalus (39; 1) Bianchini (38; 1) Sharp (39; 1) Mairan (40; 1) Mons Gruithuisen Delta (20) Gruithuisen (15; Young) Marius A Marius (58; 5) Reiner (29; 1) Mare Humorum Gassendi (101; 5) Mersenius (84; 3) Cavendish (56; 3) Liebig (37; 1) Palus Epidemiarum Campanus (48; 5) I think I was seeing a lot more small (probably 5-10 km), young craters that are not on the Field Atlas of the Moon.