Astronomical Observing from Fishcreek Observing Site
 Friday 8/10/2012 at 9:37:11pm (nautical twilight)

                    Sunset:  8:34pm
       Civil twilight ends:  9:01pm
    Nautical twilight ends:  9:37pm
Astronomical twilight ends: 10:17pm

Moon Phase: 38.05% illuminated (waning crescent)
      Rise: 0:54am - Aug 11
       Age: 22d 21h 7m since last New Moon

We hope to see you here for a night under the stars - now in our seventeenth year!
Tonight we'll have no Moon since it won't clear the trees to the east of the observing field until 1:50am or so Saturday morning. The DSO's (Deep Space Objects) we love to see will be ours for the asking. Saturn, with its beautiful rings and six of its moons will be a great target until it sets 2hrs 47min after sunset at 11:20pm. Mars is visible, but very small and getting smaller every day now setting at 11:02pm. Jupiter is nowhere to be seen since it's a late-night object now rising at 1:20am. Neptune rises at 8:57pm but doesn't clear the trees to the east of the observing field until after 10:30pm. Uranus doesn't rise until 10:22pm and won't be visible until 11:50pm. Colorful double stars and open clusters made up of hundreds of stars that will look beautiful; the globular clusters will be fantastic as will the planetary nebula formed by dying stars. The diffuse nebula and emission nebula where stars are being born will be visible. Many galaxies will be available to us, although not at their best, regardless of the bright Moon.

How about the planets...which ones can we see tonight? 

    Sun is obviously unavailable to us, it IS night time after all ;^)
    Mercury rises 1hr 15min before sunrise but is difficult to see in the glare of the Sun
    Venus rises 3hrs 28min before sunrise and is an incredibly bright thin waxing crescent
    Earth is what you'll be standing on as you look up. ;^)
    Mars is easily visible tonight and sets at 11:53pm tonight, 2hrs 29min after sunset
    Jupiter rises at 1:20am, 5hrs 7min before sunrise
    Saturn is magnificent to see in our telescopes and sets at 11:20pm, 2hrs 47min after sunset
    Uranus rises at 10:21pm and will be visible this evening if you stay extremely late
    Neptune rises at 8:57pm and is visible this evening if you stay late
 
  Pluto rises at 5:43pm, but so incredibly small and dim that we can't see a thing in our telescopes!
    Moon is a 38% illuminated waning crescent rising 54 minutes after midnight

Click here for a list of DeepSky Objects that will be available to us this session.
All times are shown in EDT (Eastern Daylight Time (UT-4)) as seen from Stow, Ohio
Longitude: W 81 25' 38.3"
 Latitude: N41 11' 11.1"
 Altitude: 337m

The following Sun, Moon and planet detail was calculated as it will be
on Friday 8/10/2012 at 9:37:11pm (nautical twilight).
Source: Guide8 software available from www.projectpluto.com

ABOVE HORIZON:
Object       Mag    Const     Rise     Set
Mars         1.1     Vir     11:53   23:02
Saturn       0.8     Vir     12:01   23:20
Neptune      7.8     Aqr     20:57   07:48
Pluto       14.2     Sgr     17:43   03:30

BELOW HORIZON:
Object       Mag    Const     Rise     Set
Sun        -26.7     Leo     06:27   20:34
Mercury      1.0     Cnc     05:13   19:30
Venus       -4.5     Ori     02:59   17:40
Jupiter     -2.2     Tau     01:20   16:13
Uranus       5.8     Cet     22:22   10:50
Moon        -9.4     Tau     00:54   16:08
Mercury rises 1hr 15min before sunrise  Mercury sets 1hr 3min before sunset
Venus rises 3hrs 28min before sunrise	Venus sets 2hrs 54min before sunset
Mars rises 5hrs 25min after sunrise	Mars sets 2hrs 29min after sunset
Jupiter rises 5hrs 7min before sunrise	Jupiter sets 4hrs 21min before sunset
Saturn rises 5hrs 34min after sunrise	Saturn sets 2hrs 47min after sunset
Uranus rises 15hrs 55min after sunrise	Uranus sets 14hrs 17min after sunset
Neptune rises 14hrs 30min after sunrise	Neptune sets 11hrs 14min after sunset
Pluto rises 11hrs 16min after sunrise	Pluto sets 6hrs 57min after sunset
Luna rises 5hrs 33min before sunrise	Luna sets 4hrs 26min before sunset

Sun data:
     Rise: 6:27am
     Transit: 1:31pm (Time of highest position in the sky, due South)
     Sets: 8:34pm
     Constellation: Leo
      RA: 9h 24m 54.290s
     DEC: +15 11' 09.23"
     Distance: 1.01349376 AU = 151,616,509 km = 94,210,132 miles = 8.44 light-minutes
     Magnitude: -26.7
     Apparent size: 31.56 arcminutes in angular diameter

     Civil twilight ends at: 9:01pm ( When the Sun is 6 below the horizon )
     Nautical twilight ends at: 9:37pm ( When the Sun is 12 below the horizon )
     Astronomical twilight ends at: 10:17pm ( When the Sun is 18 below the horizon )

     Summer began at the Summer Solstice which occurred on Wednesday Jun 20, 2012 at 7:09pm
     Fall begins at the Autumnal Equinox which will occur on Saturday Sep 22, 2012 at 10:49am

     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 8/10/2012 at 9:37:11pm the Sun will be 12 below the west-northwest horizon

Moon data:
     Rise: 0:54am - Aug 11
     Transit: 8:30am - Aug 11 (Time of highest position in the sky, due South)
     Sets: 4:08pm - Aug 11
     Constellation: Taurus
     Phase:  38.05% illuminated (waning crescent)
     Distance: 0.00271782 AU = 406,580 km = 252,637 miles = 1.36 light-seconds
     Magnitude: -9.4
     Apparent size: 29.38 arcminutes in angular diameter
     Elongation from Sun: 76.03 (morning sky)
     Age: 22d 21h 7m since last New Moon
     Prior Phase: Last Quarter on Thursday Aug 9, 2012 at 2:55pm
      Next Phase: New Moon on Friday Aug 17, 2012 at 11:54am
     Next Lunar eclipse: Total eclipse (100%) on Sunday Sept 27, 2015 at 10:10pm EDT
     On 8/10/2012 at 9:37:11pm the Moon will be 25.7 below the north-northeast horizon

Mercury data:
     Rise: 5:13am
     Transit: 12:21pm (Time of highest position in the sky, due South)
     Sets: 7:30pm
     Constellation: Cancer
     Phase:  22.27% illuminated
     Distance: .77006033 AU = 115,199,385 km = 71,581,580 miles = 6.41 light-minutes
     Magnitude: 1.0
     Apparent size: 8.73 arcseconds in angular diameter
     Elongation from Sun: 17.10 (morning sky)
     Next maximum elongations...
          Morning: Thursday, August 16, 2012 (18 41' 31")
          Evening: Friday, October 26, 2012 (24 04' 52")
     Conjunctions of Mercury...
            Prior: Inferior Conjunction on Saturday, Jul 28, 2012 at 5:06:27pm
             Next: Superior Conjunction on Monday, Sep 10, 2012 at 11:14:14am
             Next: Inferior Conjunction on Saturday, Nov 17, 2012 at 10:12:33am
     On 8/10/2012 at 9:37:11pm Mercury will be 20.4 below the northwest horizon

Venus data:
     Rise: 2:59am
     Transit: 10:19am (Time of highest position in the sky, due South)
     Sets: 5:40pm
     Constellation: Orion
     Phase:  47.69% illuminated
     Distance: .67384257 AU = 100,805,413 km = 62,637,580 miles = 5.61 light-minutes
     Magnitude: -4.5
     Apparent size: 24.76 arcseconds in angular diameter
     Elongation from Sun: 45.74 (morning sky)
     Next maximum elongations...
          Morning: Wednesday, August 15, 2012 (45 48' 10")
          Evening: Friday, November 1, 2013 (47 04' 26")
     Conjunctions of Venus...
            Prior: Inferior Conjunction on Tuesday, Jun 5, 2012 at 9:32:09pm
             Next: Superior Conjunction on Thursday, Mar 28, 2013 at 8:37:10pm
             Next: Inferior Conjunction on Friday, Jan 10, 2014 at 9:34:31pm
     On 8/10/2012 at 9:37:11pm Venus will be 28.2 below the north-northwest horizon

Mars data:
     Rise: 11:53am
     Transit: 5:28pm (Time of highest position in the sky, due South)
     Sets: 11:02pm
     Constellation: Virgo
     Phase:  90.30% illuminated
     Distance: 1.68833344 AU = 252,571,088 km = 156,940,400 miles = 14.06 light-minutes
     Magnitude: 1.1
     Apparent size: 5.54 arcseconds in angular diameter
     Elongation from Sun: 63.31 (evening sky)
     Dates of Opposition (when Mars is closest to Earth)
        Previous: Saturday Mar 3, 2012 at 3:52pm.  Distance: 100,839,728 km.  Size: 13.88 arcseconds.
            Next: Tuesday Apr 8, 2014 at 6:03pm.  Distance: 92,875,374 km.  Size: 15.07 arcseconds.
     On 8/10/2012 at 9:37:11pm Mars will be 14 above the southwest horizon

     Question: Will Mars be "as big as a Full Moon on August 27!" ???
       Answer: ABSOLUTELY NOT!!!

     Question: Will there be "Two Full Moons in the Sky!" ???
       Answer: ABSOLUTELY NOT!!!

     Mars was the closest in recorded history on August 27, but that was only in 2003, not every year!
     At that time, it appeared to be 1/75th the apparent diameter of the Moon!  NOT the "same size as the Full Moon".

     Please check these respected sites for their stories on the "Mars hoax" by clicking on the links below:
         http://www.skyandtelescope.com/observing/home/8708182.html
         http://www.snopes.com/science/astronomy/brightmars.asp
         http://www.hoax-slayer.com/mars-earth-close.html
         http://www.universetoday.com/2007/07/25/will-the-mars-look-as-big-as-the-moon-on-august-27-nope/

Jupiter data:
     Rise: 1:20am - Aug 11
     Transit: 8:46am - Aug 11 (Time of highest position in the sky, due South)
     Sets: 4:13pm - Aug 11
     Constellation: Taurus
     Phase:  99.13% illuminated
     Distance: 5.33172118 AU = 797,614,136 km = 495,614,453 miles = 44.41 light-minutes
     Magnitude: -2.2
     Apparent size: 36.98 arcseconds in angular diameter
     Elongation from Sun: 66.91 (morning sky)
     Dates of Opposition (when Jupiter is closest to Earth)
        Previous: Friday Oct 28, 2011 at 9:37pm
            Next: Sunday Dec 2, 2012 at 8:41pm
     Next transit of the Great Red Spot:
        Saturday Aug 11, 2012 at 3:19am (The Red Spot transits about every 9 hours 56 minutes)
     GRS longitude: 177.2
     Jupiter satellite events (during darkness):
        None tonight
     On 8/10/2012 at 9:37:11pm Jupiter will be 26.3 below the north horizon
 
Saturn data:
     Rise: 12:01pm
     Transit: 5:41pm (Time of highest position in the sky, due South)
     Sets: 11:20pm
     Constellation: Virgo
     Phase:  99.78% illuminated
     Distance: 10.12721439 AU = 1,515,009,709 km = 941,383,401 miles = 1.41 light-hours
     Magnitude: 0.8
     Apparent size: 16.41 arcseconds in angular diameter
     Elongation from Sun: 65.72 (evening sky)
     Dates of Opposition (when Saturn is closest to Earth)
        Previous: Sunday Apr 15, 2012 at 2:19pm
            Next: Sunday Apr 28, 2013 at 4:20am
     On 8/10/2012 at 9:37:11pm Saturn will be 17.4 above the southwest horizon

Uranus data:
     Rise: 10:22pm
     Transit: 4:36am - Aug 11 (Time of highest position in the sky, due South)
     Sets: 10:50am - Aug 11
     Constellation: Cetus
     Phase:  99.96% illuminated
     Distance: 19.39142226 AU = 2,900,915,480 km = 1,802,545,333 miles = 2.69 light-hours
     Magnitude: 5.8
     Apparent size: 3.63 arcseconds in angular diameter
     Elongation from Sun: 130.58 (morning sky)
     Dates of Opposition (when Uranus is closest to Earth)
        Previous: Sunday Sep 25, 2011 at 8:07pm
            Next: Saturday Sep 29, 2012 at 3:07am
     On 8/10/2012 at 9:37:11pm Uranus will be 9.5 below the east-northeast horizon

Neptune data:
     Rise: 8:57pm
     Transit: 2:22am - Aug 11 (Time of highest position in the sky, due South)
     Sets: 7:48am - Aug 11
     Constellation: Aquarius
     Phase:  100.00% illuminated
     Distance: 29.00809482 AU = 4,339,549,217 km = 2,696,470,904 miles = 4.03 light-hours
     Magnitude: 7.8
     Apparent size: 2.35 arcseconds in angular diameter
     Elongation from Sun: 166.69 (morning sky)
     Dates of Opposition (when Neptune is closest to Earth)
        Previous: Monday Aug 22, 2011 at 7:18pm
            Next: Friday Aug 24, 2012 at 8:24am
     On 8/10/2012 at 9:37:11pm Neptune will be 6 above the east horizon

Pluto (Dwarf Planet aka Asteroid 134340) data:
     Rise: 5:43pm
     Transit: 10:37pm (Time of highest position in the sky, due South)
     Sets: 3:30am - Aug 11
     Constellation: Sagittarius
     Phase:  99.99% illuminated
     Distance: 31.51432424 AU = 4,714,475,802 km = 2,929,439,486 miles = 4.37 light-hours
     Magnitude: 14.2
     Apparent size: 0.10 arcseconds in angular diameter
     Elongation from Sun: 138.36 (evening sky)
     Dates of Opposition (when Pluto is closest to Earth)
        Previous: Friday Jun 29, 2012 at 11:03am
            Next: Monday Jul 1, 2013 at 8:06pm
     On 8/10/2012 at 9:37:11pm Pluto will be 27.8 above the south-southeast horizon
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