Astronomical Observing from Fishcreek Observing Site - Friday 4/9/2010 at 9:01:20pm (nautical twilight).
Sunset: 8:02pm
Civil twilight ends: 8:28pm
Nautical twilight ends: 9:01pm
Astronomical twilight ends: 9:37pm
Moon Phase: 18.53% illuminated (waning crescent)
Rise: 4:26am
Age: 25d 4h 4m since last New Moon
We hope to see you here soon for a night under the stars - now in our fifteenth year!
We're still waiting for the field to dry sufficiently to support our vehicles.
All times are shown in EDT (Eastern Daylight Time (UT-4)) as seen from Stow, Ohio
Longitude: W 81 25' 38.4"
Latitude: N41 11' 11.1"
Altitude: 337m
The following Sun, Moon & planet detail was calculated as it will be on Friday
4/30/2010 at 9:28:16pm (nautical twilight).
Source: Guide8 software available from ProjectPluto
ABOVE HORIZON:
Object Mag Const Rise Set
Mercury 0.2 Ari 07:28 21:45
Venus -3.9 Ari 07:48 21:50
Mars 0.4 Cnc 13:18 04:12
Saturn 0.7 Vir 18:02 06:29
BELOW HORIZON:
Object Mag Const Rise Set
Sun -26.7 Psc 06:52 20:02
Jupiter -2.1 Aqr 05:49 17:23
Uranus 5.9 Psc 06:08 18:07
Neptune 7.9 Aqr 04:55 15:36
Pluto 14.2 Sgr 01:35 11:33
Moon -8.2 Aqr 04:26 15:35
Sun data:
Rise: 6:52am
Transit: 1:27pm (Time of highest position in the sky, due South)
Sets: 8:02pm
Constellation: Pisces
Distance: 1.00175689 AU = 149,860,698 km = 93,119,122 miles = 8.34 light-minutes
Magnitude: -26.7
Apparent size: 31.93 arcminutes in angular diameter
Civil twilight ends at: 8:28pm ( When the Sun is 6° below the horizon )
Nautical twilight ends at: 9:01pm ( When the Sun is 12° below the horizon )
Astronomical twilight ends at: 9:37pm ( When the Sun is 18° below the horizon )
Spring began at the Vernal Equinox which occurred on Saturday Mar 20, 2010 at 1:33pm
Summer begins at the Summer Solstice which will occur on Monday Jun 21, 2010 at 7:29am
Next Solar Eclipse: Partial eclipse (>80%) on Monday August 21, 2017 2:30pm EDT
Next TOTAL Solar Eclipse: Monday April 8, 2024 at 3:15pm
On 4/9/2010 at 9:01:20pm the Sun will be 12° below the west horizon
Moon data:
Rise: 4:26am
Transit: 9:56am (Time of highest position in the sky, due South)
Sets: 3:35pm
Constellation: Aquarius
Phase: 18.53% illuminated (waning crescent)
Distance: 0.00273819 AU = 409,627 km = 254,530 miles = 1.37 light-seconds
Magnitude: -8.2
Apparent size: 29.16 arcminutes in angular diameter
Elongation from Sun: 50.88° (morning sky)
Age: 25d 4h 4m since last New Moon
Prior Phase: Last Quarter on Tuesday Apr 6, 2010 at 5:37am
Next Phase: New Moon on Wednesday Apr 14, 2010 at 8:29am
Next Lunar eclipse: Total eclipse (100%) on Sunday Sept 27, 2015 at 10:10pm EDT
On 4/9/2010 at 9:01:20pm the Moon will be 53.9° below the northwest horizon
Mercury data:
Rise: 7:28am
Transit: 2:36pm (Time of highest position in the sky, due South)
Sets: 9:45pm
Constellation: Aries
Phase: 36.34% illuminated
Distance: .85150761 AU = 127,383,725 km = 79,152,578 miles = 7.09 light-minutes
Magnitude: 0.2
Apparent size: 7.90 arcseconds in angular diameter
Elongation from Sun: 19.29° (evening sky)
Next maximum elongations...
Morning: Wednesday, May 26, 2010 (25° 07' 48")
Evening: Saturday, August 7, 2010 (27° 22' 00")
On 4/9/2010 at 9:01:20pm Mercury will be 6.7° above the west horizon
Venus data:
Rise: 7:48am
Transit: 2:49pm (Time of highest position in the sky, due South)
Sets: 9:50pm
Constellation: Aries
Phase: 93.10% illuminated
Distance: 1.5541178 AU = 232,492,714 km = 144,464,277 miles = 12.94 light-minutes
Magnitude: -3.9
Apparent size: 10.74 arcseconds in angular diameter
Elongation from Sun: 21.39° (evening sky)
Next maximum elongations...
Evening: Friday, August 20, 2010 (45° 57' 59")
Morning: Saturday, January 8, 2011 (46° 57' 24")
On 4/9/2010 at 9:01:20pm Venus will be 7.7° above the west horizon
Mars data:
Rise: 1:18pm
Transit: 8:45pm (Time of highest position in the sky, due South)
Sets: 4:12am - Apr 10
Constellation: Cancer
Phase: 90.70% illuminated
Distance: 1.09564713 AU = 163,906,477 km = 101,846,764 miles = 9.13 light-minutes
Magnitude: 0.4
Apparent size: 8.54 arcseconds inangular diameter
Elongation from Sun: 105.04° (evening sky)
Dates of Opposition (when Mars is closest to Earth)
Previous: Friday Jan 29, 2010 at 2:21pm. Distance: 99,400,435 km. Size: 14.08 arcseconds.
Next: Saturday Mar 3, 2012 at 3:52pm. Distance: 100,839,728 km. Size: 13.88 arcseconds.
On 4/9/2010 at 9:01:20pm Mars will be 70.1° above the south 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
Snopes
Hoax-Slayer
UniverseToday
Jupiter data:
Rise: 5:49am
Transit: 11:36am (Time of highest position in the sky, due South)
Sets: 5:23pm
Constellation: Aquarius
Phase: 99.73% illuminated
Distance: 5.81637831 AU = 870,117,810 km = 540,666,148 miles = 48.45 light-minutes
Magnitude: -2.1
Apparent size: 33.89 arcseconds in angular diameter
Elongation from Sun: 30.77° (morning sky)
Dates of Opposition (when Jupiter is closest to Earth)
Previous: Friday Aug 14, 2009 at 1:44pm
Next: Tuesday Sep 21, 2010 at 7:28am
Next transit of the Great Red Spot: Saturday Apr 10, 2010 at 4:53am
The Red Spot transits about every 9 hours 56 minutes
GRS longitude: 143.3
Jupiter satellite events (during darkness):
none
On 4/9/2010 at 9:01:20pm Jupiter will be 40.2° below the west-northwest horizon
Saturn data:
Rise: 6:02pm
Transit: 0:15am - Apr 10 (Time of highest position in the sky, due South)
Sets: 6:29am - Apr 10
Constellation: Virgo
Phase: 99.97% illuminated
Distance: 8.55954543 AU = 1,280,489,770 km = 795,659,465 miles = 1.19 light-hours
Magnitude: 0.7
Apparent size: 19.42 arcseconds in angular diameter
Elongation from Sun: 159.61° (evening sky)
Dates of Opposition (when Saturn is closest to Earth)
Previous: Sunday Mar 21, 2010 at 8:28pm
Next: Sunday Apr 3, 2011 at 7:48pm
On 4/9/2010 at 9:01:20pm Saturn will be 31.5° above the east-southeast horizon
Uranus data:
Rise: 6:08am
Transit: 12:07pm (Time of highest position in the sky, due South)
Sets: 6:07pm
Constellation: Pisces
Phase: 99.99% illuminated
Distance: 21.01960213 AU = 3,144,487,721 km = 1,953,894,109 miles = 2.92 light-hours
Magnitude: 5.9
Apparent size: 3.35 arcseconds in angular diameter
Elongation from Sun: 22.17° (morning sky)
Dates of Opposition (when Uranus is closest to Earth)
Previous: Thursday Sep 17, 2009 at 5:34am
Next: Tuesday Sep 21, 2010 at 12:51pm
On 4/9/2010 at 9:01:20pm Uranus will be 32.5° below the west-northwest horizon
Neptune data:
Rise: 4:55am
Transit: 10:16am (Time of highest position in the sky, due South)
Sets: 3:36pm
Constellation: Aquarius
Phase: 99.98% illuminated
Distance: 30.62715383 AU = 4,581,756,998 km = 2,846,971,844 miles = 4.25 light-hours
Magnitude: 7.9
Apparent size: 2.23 arcseconds in angular diameter
Elongation from Sun: 52.07° (morning sky)
Dates of Opposition (when Neptune is closest to Earth)
Previous: Monday Aug 17, 2009 at 4:47pm
Next: Friday Aug 20, 2010 at 5:59am
On 4/9/2010 at 9:01:20pm Neptune will be 57.2° below the northwest horizon
Pluto data: (Dwarf Planet aka Asteroid 134340)
Rise: 1:35am - Apr 10
Transit: 6:34am - Apr 10 (Time of highest position in the sky, due South)
Sets: 11:33am - Apr 10
Constellation: Sagittarius
Phase: 99.98% illuminated
Distance: 31.54737119 AU = 4,719,419,556 km = 2,932,511,393 miles = 4.38 light-hours
Magnitude: 14.2
Apparent size: 0.10 arcseconds in angular diameter
Elongation from Sun: 104.59° (morning sky)
Dates of Opposition (when Pluto is closest to Earth)
Previous: Tuesday Jun 23, 2009 at 3:49am
Next: Friday Jun 25, 2010 at 2:59pm
On 4/9/2010 at 9:01:20pm Pluto will be 51.4° below the northeast horizon
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