Astronomical Observing at Fishcreek - Friday 8/10/2007

This week we have a New Moon and lots of opportunity to observe those faint deep sky objects.  Jupiter is currently our only 'show piece' planet to view since the Earth's path around the Sun has placed Venus and Saturn out of view - lost in the glare of the Sun until they both become observable in the morning before sunrise.

Click Here for a list of DeepSky Objects that will be available to us this session.

We hope to see you here for a night under the stars - our twelfth year.

Observing conditions in Stow, map to our location and other useful information is available here:

ClearSkyClock for Fishcreek Site  (the darker blue the squares are, the better)

For exact directions to our location, just click on 'Road Map' in the 'Nifty Links' section immediately below the Sky Clock.

The following Sun, Moon and planet detail was calculated as it will be on Friday, 8/10/07 at 9:38pm (nautical twilight).
Source: Guide8 software available from
www.projectpluto.com

Quick links:
Sun  Moon  Mercury  Venus  Mars  Jupiter  Saturn  Uranus  Neptune  Pluto &  General Information

Inner Solar System   Outer Solar System
 

All times are shown in EDT (Eastern Daylight Time) with planet information as seen from Stow, Ohio.

Sun data:
     Rise 6:26am
     Transit: 1:31pm (Time of highest position in the sky, due South)
     Sets 8:34pm
     Constellation: Cancer
     Distance: 1.01365901 AU = 151,641,229 km = 94,225,492 miles
     Magnitude: -26.7
     Apparent size: 31.56 arcminutes in angular diameter
     Civil twilight ends at 9:02pm ( When the Sun is 6 degrees below the horizon )
     Nautical twilight ends at 9:38pm ( When the Sun is 12 degrees below the horizon )
     Astronomical twilight ends at 10:18pm ( When the Sun is 18 degrees below the horizon )
     Autumnal Equinox: Sunday Sept 23, 2007 at 5:51am (when fall will officially be here)
     Altitude at 9:38pm: 12 below the north western horizon
     (back to 'Quick Links')

Moon data:
     Rise 4:42am Aug 11
     Transit: 12:31am Aug 11 (Time of highest position in the sky, due South)
     Sets 8:08pm Aug 11ise 3:30am
     Constellation: Cancer
     Phase: 4.16% illuminated (waning crescent)
     27.57 days since last New Moon
     Distance: 0.00256306 AU = 383,428 km = 238,251 miles
     Magnitude: -5.8
     Apparent size: 31.15 arcminutes in angular diameter
     Elongation from Sun: 23.48 degrees (morning sky)
     Next Phase: New Moon on Sunday Aug 12, 2007 at 7:02pm
     Next Lunar eclipse: Tuesday August 28, 2007 at 5:51am
    
At 9:38pm the Moon will be 17.5 below the north western horizon
    
but will look like when it clears the trees just before sunrise Saturday
    
     (back to 'Quick Links')

Mercury data:
     Rise 5:53am
     Transit: 1:10pm (Time of highest position in the sky, due South)
     Sets 8:26pm
     Constellation: Cancer
     Phase: 97.71% illuminated (waxing gibbous)
     Distance: 1.31393256 AU = 196,561,513 km = 122,137,663 miles
     Elongation from Sun: 5.41 degrees (morning sky)
     Magnitude: -1.7
     Apparent size: 5.12 arcseconds in angular diameter
     Altitude at 9:38pm: 12.5 below the north western horizon
     (back to 'Quick Links')

Venus data:
     Rise: 7:42am
     Transit 2:05pm (Time of highest position in the sky, due South)
     Set: 8:28pm
     Constellation: Sextans
     Phase: 2.51% illuminated (waning crescent)
     Elongation from Sun: 12.99 degrees (evening sky)
     Distance: 0.29605067 AU = 44,288,549 km = 27,519,629 miles
     Magnitude: mag -4.1 Bright, but below the horizon at Nautical Twilight
     Apparent size: 56.36 arcseconds in angular diameter
    
At 9:38pm Venus will be 14 below the north western horizon, but would look like this in the telescopes if we could see it:
    
     (back to 'Quick Links')

Mars data:
     Rise: 0:51am Aug 11
     Transit 8:11am Aug 11 (Time of highest position in the sky, due South)
     Set: 3:30pm Aug 11
     Constellation: Taurus
     Phase: 85.96% illuminated
     Distance: 1.26838661 AU = 189,747,935 km = 117,903,902 miles
     Magnitude: mag 0.5
     Apparent size: 7.38 arcseconds in angular diameter (getting larger)
     Elongation from Sun: 75.58 degrees (morning sky)
     Next close approach of Mars is on Monday, Dec 24, 2007
    
At 9:38pm Mars is 26 below the north north-east horizon
     (back to 'Quick Links')

Jupiter data:
     Rise: 3:57pm
     Transit 8:42pm (Time of highest position in the sky, due South)
     Set: 1:28am Aug 11
     Constellation: Ophiuchus (pronounced oh-fee-oo'-cuss)
     Phase: 99.21% illuminated
     Distance: 4.83529229 AU = 723,349,431 km = 449,468,504 miles
     Magnitude: mag -2.3
     Elongation from Sun: 111.91 degrees (evening sky)
     Apparent size: 40.77 arcseconds in angular diameter
     At 9:38pm Jupiter will be 26 above the south south-west horizon
     Next transit of the Great Red Spot: Saturday Aug 11, 2007 at 2:42am
     GRS longitude: 116.2
    
This animated GIF of Jupiter and its four moons begins at 8:00pm EDT and runs until Jupiter is
     below the horizon at 1:30am Saturday morning.  You can read the altitude and azimuth in the
     caption below Jupiter.  This image is neither inverted nor reversed - Jupiter will look like this in
     binoculars or a non-inverting telescope.  Frames are 15 minutes apart.
     Io will disappear behind Jupiter at 11:56 as the video demonstrates.
     'Alt' is degrees above the horizon, 'Az' is azimuth: 0 is north, 90 is east, 180 is south and 270 is west
    
 
     (back to 'Quick Links')

Saturn data:
     Rise: 7:14am
     Transit 2:09pm (Time of highest position in the sky, due South)
     Set: 9:03pm
     Constellation: Leo
     Phase: 99.99% illuminated
     Distance: 10.22902177 AU = 1,530,239,875 km = 950,846,987 miles
     Magnitude: mag 0.6
     Elongation from Sun: 9.19 degrees (evening sky)
     Apparent size: 16.25 arcseconds in angular diameter
     At 9:38pm Saturn will be 7-1/4 below the north western horizon
    
At 9:38pm Saturn and five of its brightest moons will be 7 below the north west horizon,
     but would look like this in the telescopes if we could see it:
     
     (back to 'Quick Links')

Uranus data:
     Rise: 9:39pm
     Transit 3:24am Aug 11 (Time of highest position in the sky, due South)
     Set: 9:10am Aug 11
     Constellation: Aquarius
     Phase: 99.98% illuminated
     Distance: 19.20665756 AU = 2,873,275,074 km = 1,785,370,381 miles
     Magnitude: mag 5.7
     Elongation from Sun: 150.21 degrees (morning sky)
     Apparent size: 3.67 arcseconds in angular diameter
    
At 9:38pm Uranus will be 1-1/4 below the eastern horizon
     (back to 'Quick Links')

Neptune data:
     Rise: 8:29pm
     Transit: 1:41am Aug 11 (Time of highest position in the sky, due South)
     Set: 6:53am Aug 11
     Constellation: Capricornus
     Phase: 100.00% illuminated
     Distance: 29.03304423 AU = 4,343,281,597 km = 2,698,790,098 miles
     Magnitude: mag 7.8
     Elongation from Sun: 177.33 degrees (morning sky)
     Apparent size: 2.35 arcseconds in angular diameter
    
At 9:38pm Neptune will be 10 above the south eastern horizon
     (back to 'Quick Links')

Pluto (Dwarf Planet aka Asteroid 134340) data:
     Rise: 4:49pm
     Transit 9:54pm (Time of highest position in the sky, due South)
     Set: 3:00am Aug 11
     Constellation: Sagittarius
     Phase: 99.98% illuminated
     Distance: 30.68989700 AU = 4,591,143,243 km = 2,852,804,186 miles
     Magnitude: mag 14.1
     Elongation from Sun: 128.12 degrees (evening sky)
     Apparent size: 0.11 arcseconds in angular diameter
     At 9:38pm Pluto is 32 above the south south-eastern horizon
     (back to 'Quick Links')

 

Inner Solar System

 

Outer Solar System

 

 

General Information about our events - Q&A of Where, When and What

Very sincerely yours,
Dave Jessie
"Time spent observing the heavens is not deducted from your life span"

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