Astronomical Observing at Fishcreek - Friday 7/06/2007

Well, last Friday's event didn't work out too well due to clouds, but there were still a few of us die-hards out there with our telescopes hoping for a clearing.  So far, the weather forecast is looking good for Friday so let's get back out under the stars and observe!  The Moon will be at last quarter and won't rise until after midnight, so there will be plenty of time to catch some ancient photons from those deep sky objects we love.  We'll also be viewing the three planets that are currently well-placed for us:  Saturn and its beautiful rings, Venus appearing like a tiny crescent Moon in the telescopes, and Jupiter, the king of the planets.  Jupiter's Great Red Spot should be visible as well as its four moons: Io, Europa, Ganymede and Callisto.  Double stars - some quite colorful - are another class of object we love to observe and there are plenty of those to see.  Globular clusters, open clusters, planetary nebula and galaxies are all on the agenda.  We'll have a great night with plenty to keep us busy!

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 detail was calculated as it will be on Friday, 7/6/07 at 10:17pm (nautical twilight).
Source: Guide8 software available from

Quick links:
Sun  Moon  Mercury  Venus  Mars  Jupiter  Saturn  Uranus  Neptune  Pluto  &  General Information
All times are shown in EDT (Eastern Daylight Time) as seen from Stow, Ohio.

Sun data:
     Rise 5:55am
     Transit: 1:30pm (Time of highest position in the sky, due South)
     Sets 9:04pm
     Constellation: Gemini
     Distance: 1.01671487 AU  =  152,098,380 km  =  94,509,553 miles
     Magnitude: -26.7
     Apparent size: 31.46 arcminutes in angular diameter
     Civil twilight ends at 9:35pm ( When the Sun is 6 degrees below the horizon )
     Nautical twilight ends at 10:17pm ( When the Sun is 12 degrees below the horizon )
     Astronomical twilight ends at 11:07pm ( When the Sun is 18 degrees below the horizon )
     Autumnal Equinox: Sunday Sept 23, 2007 at 5:51am (when fall will officially be here)
     (back to 'Quick Links')

Moon data:
     Rise 0:30am Jul 7
     Transit: 7:04am Jul 7 (Time of highest position in the sky, due South)
     Sets 1:52pm Jul 7
     Constellation: Pisces
     Phase: 56.85% illuminated (waning gibbous)
     21.96 days since last New Moon
     Distance: 0.00249725 AU  =  373,583 km  =  232,134 miles
     Magnitude: -19.4
     Apparent size: 31.98 arcminutes in angular diameter
     Elongation from Sun: 97.74 degrees (morning sky)
     Next Phase: Last Quarter on Saturday July 7, 2007 at 12:54pm
     Next Lunar eclipse: Tuesday August 28, 2007 at 5:51am
     (back to 'Quick Links')

Mercury data:
     Rise 5:27am
     Transit: 12:40pm (Time of highest position in the sky, due South)
     Sets 7:55pm
     Constellation: Orion
     Phase: 7.09% illuminated (tiny waxing crescent)
     Distance: 0.61863036 AU  =  92,545,784 km  =  57,505,285 miles
     Elongation from Sun: 12.68 degrees (morning sky)
     Magnitude: 3.0
     Apparent size: 10.87 arcseconds in angular diameter
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Venus data:
     Rise: 9:28am
     Transit 4:20pm (Time of highest position in the sky, due South)
     Set: 11:11pm
     Constellation: Leo
     Phase: 31.02% illuminated (waning crescent)
     Elongation from Sun: 41.36 degrees (evening sky)
     Distance: 0.48739454 AU  =  72,913,185 km  =  45,306,153 miles
     Magnitude: mag -4.5 (VERY bright!)
     Apparent size: 34.24 arcseconds in angular diameter
At 10:17pm Venus will be at an altitude of 9  and look like this in the telescopes
     (back to 'Quick Links')

Mars data:
     Rise: 2:00am Jul 7
     Transit 8:53am Jul 7 (Time of highest position in the sky, due South)
     Set: 3:47pm Jul 7
     Constellation: Aries
     Phase: 87.20% illuminated
     Distance: 1.44894612 AU  =  216,759,254 km  =  134,687,958 miles
     Magnitude: mag 0.7
     Apparent size: 6.46 arcseconds in angular diameter (getting larger)
     Elongation from Sun: 65.89 degrees (morning sky)
     Next close approach of Mars is on Monday, Dec 24, 2007
     (back to 'Quick Links')

Jupiter data:
     Rise: 6:21pm
     Transit 11:06am (Time of highest position in the sky, due South)
     Set: 3:51am Jul 7
     Constellation: Ophiuchus (pronounced oh-fee-oo'-cuss)
     Phase: 99.72% illuminated
     Distance: 4.42988588 AU  =  662,701,495 km  =  411,783,623 miles
     Magnitude: mag -2.5
     Elongation from Sun: 146.72 degrees (evening sky)
     Apparent size: 44.50 arcseconds in angular diameter
     Next transit of the Great Red Spot: July 6 at 10:47pm
At 10:17pm Jupiter and its four moons will be at an altitude of 26 and look like this in the telescopes
     (back to 'Quick Links')

Saturn data:
     Rise: 9:10am
     Transit 4:10pm (Time of highest position in the sky, due South)
     Set: 11:10pm
     Constellation: Leo
     Phase: 99.88% illuminated
     Distance: 9.99687912 AU  =  1,495,511,829 km  =  929,267,980 miles
     Magnitude: mag 0.6
     Elongation from Sun: 38.36 degrees (evening sky)
     Apparent size: 16.62 arcseconds in angular diameter

     (back to 'Quick Links')

Uranus data:
     Rise: 11:58am
     Transit 5:45am Jul 7 (Time of highest position in the sky, due South)
     Set: 11:31am Jul 7
     Constellation: Aquarius
     Phase: 99.95% illuminated
     Distance: 19.62530429 AU  =  2,935,903,734 km  =  1,824,286,026 miles
     Magnitude: mag 5.8
     Elongation from Sun: 116.01 degrees (morning sky)
     Apparent size: 3.59 arcseconds in angular diameter

     (back to 'Quick Links')

Neptune data:
     Rise: 10:49pm
     Transit: 4:02am Jul 7 (Time of highest position in the sky, due South)
     Set: 9:15am Jul 7
     Constellation: Capricornus
     Phase: 99.99% illuminated
     Distance: 29.22750900 AU  =  4,372,373,113 km  =  2,716,866,728 miles
     Magnitude: mag 7.8
     Elongation from Sun: 143.06 degrees (morning sky)
     Apparent size: 2.34 arcseconds in angular diameter
     (back to 'Quick Links')

Pluto (Dwarf Planet aka Asteroid 134340) data:
     Rise: 7:09pm
     Transit 0:15am Jul 7 (Time of highest position in the sky, due South)
     Set: 5:21am Jul 7
     Constellation: Sagittarius
     Phase: 100.00% illuminated
     Distance: 30.34459295 AU  =  4,539,486,492 km  =  2,820,706,169 miles
     Magnitude: mag 14.1
     Elongation from Sun: 161.24 degrees (evening sky)
     Apparent size: 0.11 arcseconds in angular diameter
     (back to 'Quick Links')

General Information - 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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