Astronomical Observing at Fishcreek - Friday 10/5/2007

Be sure to hit the REFRESH button on your browser
(or the <F5> key on your keyboard) for up-to-date information


A successful night!  Some clouds, but lots of
folks got to see lots of fascinating sights.


Tonight's event will feature a Moonless sky until it rises at 2:42am.  We'll have the planet Jupiter, colorful double stars, open clusters made up of hundreds of stars, globular clusters comprised of hundreds of thousands of stars, planetary nebula formed by dying stars, diffuse nebula and emission nebula where stars are being born, will all be available to us until after 3:00am.  Many amateur astronomers feel that late fall is the best time to observe since there are beautiful objects of all categories available and the Milky Way, the galaxy in which we live, is directly overhead.

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 - now in our thirteenth year!

For observing conditions at our site, please click on the link below: 

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

Quick links:
    Inner Solar System    Outer Solar System    General Information about our events

The following Sun, Moon and planet detail
was calculated as it will be on Friday
10/05/07 at 8:00:51pm (nautical twilight)
Source: Guide8 software available from

Above Horizon Below Horizon
(rises at 2:42am Saturday)


Sun data
Rises: 7: 23am
Transits: 1: 14pm - Time of highest position in the sky, due South
Sets: 7: 04pm
Constellation:   Virgo
Distance:   .99995937 AU = 149,591,792 km = 92,952,031 miles = 8.33 light-minutes
Magnitude:   -26.7
Apparent size:   31.99 arcminutes in angular diameter
Twilight ends...    
Civil:   7:29pm - Sun is 6 below the horizon
Nautical:   8:01pm - Sun is 12 below the horizon
Astronomical:   8:33pm - Sun is 18 below the horizon
Winter Solstice:   Saturday Dec 22, 2007 at 2:08am (when winter will officially be here)
Next Solar Eclipses in Stow, Ohio:
    Partial eclipse (>80%) on Monday August 21, 2017 2:30pm EDT
    Total eclipse (an amazing sight!) on Monday April 8, 2024 2:15pm EST (3:15pm EDT)
At 8:01pm the Sun will be 12 below the west horizon

(back to 'Quick Links')


Moon data
Rises: 1: 33am Oct 5
Transits: 9: 14am Oct 5 - Time of highest position in the sky, due South
Sets: 4: 43pm Oct 5
Constellation:   Cancer
Phase:   24.11% illuminated (waning crescent)
Distance:   0.00262418 AU = 392,572 km = 243,933 miles = 1.31 light-seconds
Magnitude:   -8.7
Apparent size:   30.43 arcminutes in angular diameter
Elongation from Sun:   58.68 degrees (morning sky)
Age:   24.47 days since last New Moon
Next Phase:   New Moon on Thursday Oct 11, 2007 at 1:01am
Next Lunar eclipse:   Total eclipse (100%) on Wednesday Feb 20, 2008 at 9:58pm EST
At 8:01pm the Moon will be 27.1 below the northwest horizon
but will look like this at 4:15am Saturday after clearing the trees to the east:

(back to 'Quick Links')


Mercury data
Rises: 9: 38am
Transits: 2: 43pm - Time of highest position in the sky, due South
Sets: 7: 47pm
Constellation:   Virgo
Phase:   46.75% illuminated
Distance:   .87946071 AU = 131,565,449 km = 81,750,981 miles = 7.33 light-minutes
Magnitude:   0.2
Apparent size:   7.65 arcseconds in angular diameter
Elongation from Sun:   24.91 degrees (evening sky)
Next maximum elongations...
Morning:   Thursday 11/08/2007 (18 58' 34")
Evening:   Tuesday 1/22/2008 (18 38' 41")
At 8:01pm Mercury will be 3.5 below the west-southwest horizon

(back to 'Quick Links')


Venus data
Rises: 3: 46am
Transits: 10: 26am - Time of highest position in the sky, due South
Sets: 5: 07pm
Constellation:   Leo
Phase:   36.60% illuminated (waxing crescent)
Distance:   0.52342177 AU = 78,302,782 km = 48,655,094 miles = 4.36 light-minutes
Magnitude:   -4.5   Bright! - visible in the morning well before sunrise
Apparent size:   31.88 arcseconds in angular diameter
Elongation from Sun:   44.17 degrees (morning sky)
Next maximum elongations...
Morning:   Sunday 10/28/2007 (46 27' 59")
Evening:   Wednesday 1/14/2009 (47 07' 21")
At 8:01pm Venus will be 29.2 below the northwest horizon

(back to 'Quick Links')


Mars data
Rises: 11: 05pm
Transits: 6: 41am Oct 6 - Time of highest position in the sky, due South
Sets: 2: 16pm Oct 6
Constellation:   Gemini
Phase:   87.15% illuminated
Distance:   .9336533 AU = 139,672,546 km = 86,788,498 miles = 7.78 light-minutes
Magnitude:   -0.2  Getting brighter
Apparent size:   10.02 arcseconds in angular diameter and getting larger
Elongation from Sun:   99.31 degrees (morning sky)
Next close approach:   Monday Dec 24, 2007
At 8:01pm Mars will be 22.8 below the north-northeast horizon

No, Mars was *not* " big as a Full Moon on August 27!"
Please see the following links for more information about this annual 'Mars Hoax'
    Sky & Telescope article article
    Hoax-slayer article
    Universe Today article

(back to 'Quick Links')


Jupiter data
Rises: 12: 41pm
Transits: 5: 23pm - Time of highest position in the sky, due South
Sets: 10: 06pm
Constellation:   Ophiuchus (pronounced oh-fee-oo'-cuss)
Phase:   99.29% illuminated
Distance:   5.66311258 AU = 847,189,583 km = 526,419,208 miles = 47.17 light-minutes
Magnitude:   -2.0
Apparent size:   34.81 arcseconds in angular diameter
Elongation from Sun:   62.62 degrees (evening sky)
At 8:01pm Jupiter will be 16.8 above the south-southwest horizon
Next transit of the Great Red Spot:  Friday Oct 5, 2007 at 11:16pm
GRS longitude: 117.4
Jupiter satellite events tonight:
     Io Transit ends at 8:23pm
     Io Shadow Transit ends at 9:32pm

This animated GIF of Jupiter and its four moons begins at 7:30pm EDT and runs until Jupiter
is below the horizon.  You can read the altitude and azimuth in the caption below Jupiter.
This image is neither inverted nor reversed and will look like this in binoculars or a non-inverting
telescope.  Frames are 15 minutes apart.
'Alt' is degrees above the horizon, 'Az' is degrees of azimuth: 0 is north, 90 is east, 180 is south and 270 is west

The apparent eastward (left) motion of Jupiter and its moons relative to the background
stars is due to the combined motion of Jupiter and Earth in their orbits around the Sun.

(back to 'Quick Links')


Saturn data
Rises: 4: 09am
Transits: 10: 55am - Time of highest position in the sky, due South
Sets: 5: 41pm
Constellation:   Leo
Phase:   99.89% illuminated
Distance:   10.00658368 AU = 1,496,963,612 km = 930,170,076 miles = 1.39 light-hours
Magnitude:   0.8
Apparent size:   16.61 arcseconds in angular diameter
Elongation from Sun:   38.40 degrees (morning sky)
At 8:01pm Saturn will be 24.1 below the west-northwest horizon

(back to 'Quick Links')


Uranus data
Rises: 5: 53pm
Transits: 11: 36pm - Time of highest position in the sky, due South
Sets: 5: 19am Oct 6
Constellation:   Aquarius
Phase:   99.99% illuminated
Distance:   19.19525354 AU = 2,871,569,057 km = 1,784,310,311 miles = 2.66 light-hours
Magnitude:   5.7
Apparent size:   3.67 arcseconds in angular diameter
Elongation from Sun:   153.33 degrees (evening sky)
At 8:01pm Uranus will be 21.4 above the east-southeast horizon

(back to 'Quick Links')


Neptune data
Rises: 4: 45pm
Transits: 9: 56pm - Time of highest position in the sky, due South
Sets: 3: 06am Oct 6
Constellation:   Capricornus
Phase:   99.98% illuminated
Distance:   29.43120171 AU = 4,402,845,107 km = 2,735,801,148 miles = 4.09 light-hours
Magnitude:   7.9
Apparent size:   2.32 arcseconds in angular diameter
Elongation from Sun:   127.06 degrees (evening sky)
At 8:01pm Neptune will be 27.5 above the southeast horizon

(back to 'Quick Links')


Pluto (Dwarf Planet aka Asteroid 134340) data
Rises: 1: 10pm
Transits: 6: 14pm - Time of highest position in the sky, due South
Sets: 11: 18pm
Constellation:   Sagittarius
Phase:   99.98% illuminated
Distance:   31.60926068 AU = 4,728,678,092 km = 2,938,264,380 miles = 4.39 light-hours
Magnitude:   14.2
Apparent size:   0.10 arcseconds in angular diameter
Elongation from Sun:   74.26 degrees (evening sky)
At 8:01pm Pluto will be 27 above the south-southwest horizon

(back to 'Quick Links')

Inner Solar System - the Sun, Mercury, Venus and Earth

(back to 'Quick Links')

Outer Solar System - the Sun, Mars, Jupiter, Uranus, Neptune and Pluto

(back to 'Quick Links')

General Information you should know 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"

Back to 'Quick Links'

Back to home page