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Astronomical Observing at Fishcreek - Friday
9/12/2008
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Be sure to
hit the REFRESH button on your browser
(or the <F5> key on your keyboard) for up-to-date information |
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Event report...
This event was cancelled
due to heavy rain and
cloud cover. We'll try again next
Friday 9/19/08.
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Tonight's event will be somewhat limited by the nearly full Moon the
entire night. Despite the brightness of the moon, we will be able to see
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, and
galaxies. Jupiter, the King of the planets, is
a beautiful sight. With a high-power view
through the telescopes, details in the cloud bands is possible, and the four
Galilean moons actually appear as disks instead of just point light sources. Uranus and Neptune are visible
now as well and appear as small bluish-green 'large' stars in our telescopes.
And, for a special treat, we'll be able to watch the Moon occulting Neptune at
8:43:36pm tonight and reemerge from the bright side at 9:48:05pm. How
better to actually observe the solar system behaving as it has for eons?
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 fourteenth 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
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The following Sun, Moon and planet detail
was calculated as it will be
on Friday 9/12/08 at 8:39:36pm (nautical twilight)
Source: Guide8 software available from
www.projectpluto.com |
|
Above
Horizon |
Below
Horizon |
Constellation |
Mag |
Rises |
Sets |
| |
Sun |
Leo |
-26.7 |
07:00 |
19:42 |
|
|
Mercury |
Virgo |
0.2 |
09:22 |
20:28 |
| |
Venus |
Virgo |
-3.9 |
09:11 |
20:43 |
|
|
Mars |
Virgo |
1.7 |
09:10 |
20:40 |
|
Jupiter |
|
Sagittarius |
-2.4 |
16:12 |
01:29 |
|
|
Saturn |
Leo |
0.9 |
06:23 |
19:31 |
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Uranus |
|
Aquarius |
5.7 |
19:32 |
07:11 |
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Neptune |
|
Capricornus |
7.8 |
18:20 |
04:47 |
|
Pluto |
|
Sagittarius |
14.2 |
14:47 |
00:52 |
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Moon |
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Capricornus |
-12.0 |
18:17 |
05:06 |
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Sun data |
| |
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Rises: |
7: |
00am |
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Transits:
|
1: |
21pm - Time of highest
position in the sky, due South |
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Sets:
|
7: |
42pm |
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Constellation: |
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Leo |
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Distance: |
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1.00614183 AU = 150,516,675 km = 93,526,727 miles =
8.38 light-minutes |
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Magnitude: |
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-26.7 |
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Apparent size: |
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31.79 arcminutes in angular diameter |
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Twilight ends... |
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Civil: |
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8: |
07pm |
- Sun is 6° below the horizon |
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Nautical: |
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8:
|
40pm |
- Sun is 12° below the
horizon |
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Astronomical: |
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9:
|
13pm |
- Sun is 18° below the
horizon |
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Fall
Equinox: |
|
Monday Sept 22, 2008
at 11:45am
(when Fall 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)
On 9/12/2008 at 8:39:36pm the Sun will be 12º below
the west horizon
(back to 'Quick Links') |
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Moon data |
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Rises: |
6: |
17pm |
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Transits:
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11: |
37pm
- Time of highest
position in the sky, due South |
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Sets:
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5: |
06am Sep 13 |
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Constellation: |
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Capricornus |
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Phase: |
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93.88% illuminated
(waxing gibbous) |
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Distance: |
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0.0025821 AU =
386,277 km = 240,021 miles = 1.29 light-seconds |
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Magnitude: |
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-12.0 |
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Apparent size: |
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30.92 arcminutes
in
angular diameter |
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Elongation from Sun: |
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151.28 degrees
(evening sky) |
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Age: |
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13.20 days
since last
New Moon |
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Next Phase: |
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Full Moon on Monday
Sept 15, 2008 at 5:13am |
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Next Lunar eclipse: |
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Total eclipse (100%)
on Sunday Sept 27, 2015 at 10:10pm EDT |
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The dark crescent
(left) side of the Moon will occult the 7.8mag
planet
Neptune at 8:43:36pm tonight and reemerge from the
bright (right) side
at 9:48:05pm as the Moon moves eastward on its orbit
around the earth.
|
On 9/12/2008 at 8:39:36pm the
Moon will be 21.1º above the
east-southeast horizon
and will look like this.
Computer-generated image on the left shows Neptune about to
be occulted by the Moon. The image on
the right shows Neptune re-appearing from the
bright side of the Moon a little over an hour later.

(back to 'Quick
Links') |
|
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Mercury data |
| |
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Rises: |
9: |
22am |
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Transits:
|
2: |
55pm - Time of highest
position in the sky, due South |
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Sets:
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8: |
28pm |
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Constellation: |
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Virgo |
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Phase: |
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53.40% illuminated |
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Distance: |
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0.92904637 AU =
138,983,359 km = 86,360,257 miles = 7.74
light-minutes |
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Magnitude: |
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0.2 |
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Apparent size: |
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7.24 arcseconds
in angular diameter |
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Elongation from Sun: |
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26.79 degrees
(evening sky) |
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Next maximum elongations... |
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Morning: |
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Wednesday, October
22,
2008 (18° 19' 05") |
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Evening: |
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Thursday, September
11, 2008 (26° 52' 17") |
On 9/12/2008 at 8:39:36pm
Mercury will be 3.2º below the
west-southwest horizon
(back to 'Quick
Links') |
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Venus data |
| |
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Rises: |
9: |
11am |
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Transits:
|
2: |
57pm - Time of highest position in the sky,
due South |
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Sets:
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8: |
43pm |
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Constellation: |
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Virgo |
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Phase: |
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89.79% illuminated |
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Distance: |
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1.48200898 AU =
221,705,387 km = 137,761,342 miles = 12.34
light-minutes |
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Magnitude: |
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-3.9
(bright, but lost in the glare
of the setting Sun) |
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Apparent size: |
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11.26 arcseconds in
angular diameter |
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Elongation from Sun: |
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25.84 degrees
(evening sky) |
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Next maximum elongations... |
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Evening: |
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Wednesday 1/14/2009
(47° 07' 21") |
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Morning: |
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Friday 6/05/2009
(45° 51' 07") |
On 9/12/2008 at 8:39:36pm Venus
will be 0.5º below the
west-southwest horizon
(back to 'Quick
Links') |
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Mars data |
| |
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Rises: |
9: |
10am |
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Transits:
|
2: |
55pm
- Time of highest position in the sky,
due South |
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Sets:
|
8: |
40pm |
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Constellation: |
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Virgo |
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Phase: |
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98.15% illuminated |
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Distance: |
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2.44578966 AU =
365,884,926 km = 227,350,356 miles = 20.37
light-minutes |
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Magnitude: |
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1.7
(getting dimmer) |
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Apparent size: |
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3.83 arcseconds
in angular diameter (getting
smaller) |
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Elongation from Sun: |
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25.30 degrees
(evening sky) |
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Next
close approach: |
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Friday, Jan 29, 2010 |
On 9/12/2008 at 8:39:36pm Mars
will be 0.9º below the
west-southwest horizon
No, Mars was *not
"...as big as a Full Moon on August
27!"
Please see the following links for more information
about this annual 'Mars Hoax'
Sky & Telescope article
Snopes.com article
Hoax-slayer article
Universe Today article
(back to 'Quick
Links') |
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Jupiter data |
| |
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Rises: |
4: |
12pm |
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Transits:
|
8: |
50pm
- Time of highest
position in the sky, due South |
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Sets:
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1: |
29am Sep 13 |
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Constellation: |
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Sagittarius |
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Phase: |
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99.17% illuminated |
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Distance: |
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4.6923188 AU =
701,960,901 km = 436,178,287 miles = 39.08
light-minutes |
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Magnitude: |
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-2.4 |
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Apparent size: |
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42.01 arcseconds
in angular diameter |
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Elongation from Sun: |
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111.96 degrees
(evening sky) |
On 9/12/2008 at 8:39:36pm Jupiter will be 25.6º
above the south-southeast
horizon
Next transit of the Great Red Spot: Tonight at
10:23pm
GRS longitude: 125.3º
Jupiter moons activity:
None tonight
Jupiter and its four visible moons will look like this...

(back to 'Quick
Links') |
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Saturn data |
| |
|
Rises: |
6: |
22am |
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Transits:
|
12: |
57pm - Time of highest position in the sky,
due South |
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Sets:
|
7: |
31pm |
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Constellation: |
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Leo |
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Phase: |
|
99.99% illuminated |
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Distance: |
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10.33174395 AU =
1,545,606,896 km = 960,395,612 miles = 1.43
light-hours |
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Magnitude: |
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0.9 |
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Apparent size: |
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16.09 arcseconds
in angular diameter |
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Elongation from Sun: |
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7.75 degrees
(morning sky) |
On 9/12/2008 at 8:39:36pm Saturn
will be 13.3º below the
west-northwest horizon
(back to 'Quick
Links') |
|
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Uranus data |
| |
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Rises: |
7: |
32pm |
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Transits:
|
1: |
22am Sep 13 - Time of highest position in the sky,
due South |
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Sets:
|
7: |
11am Sep 13 |
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Constellation: |
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Aquarius |
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Phase: |
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100.00% illuminated |
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Distance: |
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19.09223685 AU =
2,856,157,980 km = 1,774,734,311 miles = 2.65
light-hours |
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Magnitude: |
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5.7 |
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Apparent size: |
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3.69 arcseconds
in angular diameter |
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Elongation from Sun: |
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179.19 degrees
(morning sky) |
On 9/12/2008 at 8:39:36pm Uranus
will be 11.2º above the east
horizon
(back to 'Quick
Links') |
|
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Neptune data |
| |
|
Rises: |
6: |
20pm |
|
Transits:
|
11: |
34pm - Time of highest position in the sky,
due South |
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Sets:
|
4: |
47am Sep 13 |
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Constellation: |
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Capricornus |
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Phase: |
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99.99% illuminated |
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Distance: |
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29.14865532 AU =
4,360,576,769 km = 2,709,536,820 miles = 4.05
light-hours |
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Magnitude: |
|
7.8 |
|
Apparent size: |
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2.34 arcseconds in
angular diameter |
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Elongation from Sun: |
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151.49 degrees
(evening sky) |
|
|
|
Neptune will
disappear behind the dark (left) edge of the Moon at
8:43:36pm tonight and reemerge from the bright
(right) side
at 9:48:05pm (see
Moon for
computer-generated images of how this will appear
from our location) |
On 9/12/2008 at 8:39:36pm
Neptune will be 21.2º above the
east-southeast horizon
(back to 'Quick
Links') |
|
|
Pluto
(Dwarf Planet aka Asteroid 134340)
data |
| |
|
Rises: |
2: |
47pm |
|
Transits:
|
7: |
50pm
- Time of highest position in the sky,
due South |
|
Sets:
|
12: |
52am Sep 13 |
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Constellation: |
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Sagittarius |
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Phase: |
|
99.97% illuminated |
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Distance: |
|
31.36802367 AU =
4,692,589,549 km = 2,915,839,999 miles = 4.35
light-hours |
|
Magnitude: |
|
14.1 |
|
Apparent size: |
|
0.11 arcseconds
in angular diameter |
|
Elongation from Sun: |
|
97.84 degrees
(evening sky) |
On 9/12/2008 at 8:39:36pm Pluto will be 30.3º above
the south horizon
(back to 'Quick
Links') |
|
Inner Solar System
- the Sun, Mercury, Venus and Earth
(Created using
Software Bisque's
TheSky
software)

(back to 'Quick
Links')
Outer Solar System
- the Sun, Mars, Jupiter, Uranus, Neptune and Pluto
(Created using
Software Bisque's
TheSky
software)

(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')
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