This event was CANCELLED due to heavy cloud cover
and the possibility of severe weather.

We'll try again next Friday 6/24/2011.
 

Astronomical Observing at the Fishcreek Observing Site
Friday - 6/17/2011  10:00 pm

Click here for event status

Click here for a printer-friendly version of the information on this page.

Click here for general Information you should know about our events - Q&A of Where, When and What.

Click here for satellite passes this evening

Click here for chart of Solar/Lunar/planet availability for tonight. 

Tonight, we'll have a very bright nearly full waning gibbous Moon with us when it rises at 10:32pm.  We also have beautiful Saturn with its magnificent rings.  Even with the bright Moon, we'll have the 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 also be visible.  Galaxies will be available to us as well.

Click here for a list of DeepSky Objects that will be available to us this session.

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

    Sun is obviously unavailable to us, it will be night time after all. 
    Mercury isn't currently visible, but will soon be an evening object again (but difficult to see).
    Venus is now visible in the morning rising an hour before sunrise.
    Earth is what you'll be standing on as you look up. 
    Mars is a morning object now, rising an hour and a half before sunrise.
    Jupiter is an early morning object rising just before 3:00am.
    Saturn is now visible in the evening and night.  It sets at 2:23am.
    Uranus rises at 1:48am.
    Neptune rises a half hour after midnight.
 
  Pluto rises at sunset, but so incredibly small and dim that we can't see a thing in our telescopes!  We can show you where it is.  OK, OK...if you want to try to see it, we'll try.  Don't expect to see anything, though!
    Moon is a bit more than two days past full and rises at 10:32pm tonight.


Click here for additional information on the planets not listed in the detail below.

Click here for a list of constellations we can see tonight before midnight.

We hope to see you here for a night under the stars - now in our sixteenth year!

- - - - - - Our location - - - - - -

Longitude:

W 81 25' 38.4"
Latitude: N 41 11' 11.1"
Altitude:

 337m

Note: All times are shown in EDT (Eastern Daylight Time (UT-4)) as seen from Stow, Ohio
.
 

The following Sun, Moon and planet detail was calculated as it will be
on Friday 6/17/2011 at 10:17:57pm (nautical twilight)

Source: Guide8 software available from www.projectpluto.com

Above Horizon Below Horizon Constellation Mag Rises Sets
  Sun Taurus -26.7 05:48 21:04
  Mercury Gemini -1.6 06:07 21:37
  Venus Taurus -3.9 04:50 19:43
  Mars Taurus 1.4 04:06 18:43
  Jupiter Aries -2.2 02:57 16:29
Saturn   Virgo 0.8 14:25 02:23
  Uranus Pisces 5.9 01:48 14:06
  Neptune Aquarius 7.9 00:29 11:16
Pluto   Sagittarius 14.2 21:11 07:04
  Moon Sagittarius -11.9 22:32 08:49
Click here for information on the planets such as orbital and rotational periods, velocities, distances, etc. not listed in the detail provided below.

.

Quick links:
    Inner Solar System     Outer Solar System

.

Sun data
 
Rises:

5:48am

Transits:

1:26pm - Time of highest position in the sky, due South

Sets:

9:04pm

Constellation:

Taurus

Distance:

1.01597216 AU = 151,987,272 km = 94,440,514 miles = 8.46 light-minutes

Magnitude:

-26.7

Apparent size:

31.48 arcminutes in angular diameter

Twilight ends...

Civil:

  9:35pm - Sun is   6 below the horizon

Nautical:

10:18pm - Sun is 12 below the horizon

Astronomical:

11:09pm - Sun is 18 below the horizon

Spring began:

at the Vernal Equinox which occurred on Sunday Mar 20, 2011 at 7:21pm

Summer begins:

at the Summer Solstice which will occur on Tuesday Jun 21, 2011 at 1:17pm

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 6/17/2011 at 10:17:57pm the Sun will be 12 below the northwest horizon
Below is the current image of the Sun in heavily-filtered white light updated each morning on the SOHO site.
Notice the graphic below the image that shows the relative size of Jupiter and Earth compared to the Sun:
Never EVER point your telescope at the Sun!!!  Instantaneous and permanent eye damage will result!!!
Very special equipment is required to provide an image like this...don't try this at home.


Click here for additional data on the Sun

(back to 'Quick Links')

.

Moon data
 
Rises:

10:32pm

Transits:

  3:37am - Jun 18 (Time of highest position in the sky, due South)

Sets:

  8:49am - Jun 18

Constellation:

Sagittarius

Phase:

93.80% illuminated (waning gibbous)

Distance:

0.00257399 AU = 385,064 km = 239,268 miles = 1.29 light-seconds

Magnitude:

-11.9

Apparent size:

31.02 arcminutes in angular diameter

Elongation from Sun:

151.08 (morning sky)

Age:

16d 5h 16m since last New Moon

Prior Phase:

Full Moon on Wednesday Jun 15, 2011 at 4:14pm

Next Phase:

Last Quarter on Thursday Jun 23, 2011 at 7:48am

Next Lunar eclipse:

Total eclipse (100%) on Sunday Sept 27, 2015 at 10:10pm EDT


On 6/17/2011 at 10:17:57pm the Moon will be 3.8 below the east horizon
and will look like this in our telescopes at very low power when it clears the trees to the east of the observing field at 30 minutes after midnight*
:

*How do we change the "power" (magnification) of our telescopes?
Simple!  By changing the eyepiece to one of a longer or shorter focal length.
If the eyepiece is of shorter focal length, the "power" (magnification) is higher,
If he eyepiece is of longer focal length, the "power" (magnification) is lower.
By how much?  Here's the formula:
Magnification =F focal length of telescope objective lens (or mirror)
focal length of eyepiece being used      

Note: All graphics are correct-image representations.  A telescope will reverse this left-right and possibly invert up-down depending on type of equipment being used.

Click here for additional data on the Moon

(back to 'Quick Links')

.

Mercury data
 
Rises:

6:07am

Transits:

1:52pm - Time of highest position in the sky, due South

Sets:

9:37pm

Constellation:

Gemini

Phase:

96.67% illuminated

Distance:

1.30619214 AU = 195,403,563 km = 121,418,146 miles = 10.88 light-minutes

Magnitude:

-1.6

Apparent size:

5.08 arcseconds in angular diameter

Elongation from Sun:

15.56 (evening sky)

Next maximum elongations...
Evening:

Wednesday, July 20, 2011 (26 49' 02")

Morning:

Saturday, September 3, 2011 (18 06' 39")


On 6/17/2011 at 10:17:57pm Mercury will be 7.1
below the southwest horizon

Click here for additional data on Mercury

(back to 'Quick Links')

.

Venus data
 
Rises:

  4:50am

Transits:

12:16pm - Time of highest position in the sky, due South

Sets:

  7:43pm

Constellation:

Taurus

Phase:

95.99% illuminated

Distance:

1.64050838 AU = 245,416,561 km = 152,494,783 miles = 13.66 light-minutes

Magnitude:

-3.9 (extremely bright, the brightest thing in the morning sky except for the Moon)

Apparent size:

10.17 arcseconds in angular diameter

Elongation from Sun:

16.20 (morning sky)

Next maximum elongations...
Evening:

Tuesday, March 27, 2012 (46 02' 27")

Morning:

Wednesday, August 15, 2012 (45 48' 10")


On 6/17/2011 at 10:17:57pm Venus will be 21.7 below the northwest horizon

Click here for additional data on Venus

(back to 'Quick Links')

.

Mars data
 
Rises:

  4:06am

Transits:

11:24am - Time of highest position in the sky, due South

Sets:

  6:43pm

Constellation:

Taurus

Phase:

97.07% illuminated

Distance:

2.25282137 AU = 337,017,280 km = 209,412,832 miles = 18.76 light-minutes

Magnitude:

1.4

Apparent size:

4.15 arcseconds in angular diameter - less than 1/500th the apparent diameter of the Moon!

Elongation from Sun:

28.71 (morning sky)

Dates of Opposition (when Mars is closest to the 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.

Click here:

For a table of close encounters with Mars from 1969 to 2052


On 6/17/2011 at 10:17:57pm Mars will be 27.4 below the north-northwest 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 1/75
th 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:

    Sky & Telescope

   
Snopes.com

    Hoax-slayer

    Universe Today

Click here for additional data on Mars

(back to 'Quick Links')

.

Jupiter data
 
Rises:

2:57am - Jun 18

Transits:

9:43am - Jun 18 - Time of highest position in the sky, due South

Sets:

4:29pm - Jun 18

Constellation:

Aries

Phase:

99.31% illuminated

Distance:

5.4810515 AU = 819,953,634 km = 509,495,574 miles = 45.65 light-minutes

Magnitude:

-2.2

Apparent size:

35.97 arcseconds in angular diameter

Elongation from Sun:

53.90 (morning sky)

Dates of Opposition (when Jupiter is closest to the Earth)

Previous:

Tuesday Sep 21, 2010 at 7:28am

Next:

Friday Oct 28, 2011 at 9:37pm


Next transit of the Great Red Spot: Saturday Jun 18, 2011 at 4:58am (The Red Spot transits about every 9 hours 56 minutes)
GRS longitude: 162.2
Jupiter moons activity (during darkness):
          None

On 6/17/2011 at 10:17:57pm Jupiter will be 37 below the north horizon

Click here for additional data on Jupiter

(back to 'Quick Links')

.

Saturn data
 
Rises:

2:25pm

Transits:

8:24pm - Time of highest position in the sky, due South

Sets:

2:23am - Jun 18

Constellation:

Virgo

Phase:

99.74% illuminated

Distance:

9.34034188 AU = 1,397,295,256 km = 868,239,030 miles = 1.3 light-hours

Magnitude:

0.8

Apparent size:

17.79 arcseconds in angular diameter

Elongation from Sun:

103.90 (evening sky)

Dates of Opposition (when Saturn is closest to the Earth)

Previous:

Sunday Apr 3, 2011 at 7:48pm

Next:

Sunday Apr 15, 2012 at 2:19pm


On 6/17/2011 at 10:17:57pm Saturn will be 39.9 above the south-southwest horizon
and will look like this in our telescopes at high power...

Note: All graphics are correct-image representations.  A telescope will reverse this left-right and possibly invert up-down depending on type of equipment being used.

Click here for additional data on Saturn

(back to 'Quick Links')

.

Uranus data
 
Rises:

1:48am - Jun 18

Transits:

7:57am - Jun 18 - Time of highest position in the sky, due South

Sets:

2:06pm - Jun 18

Constellation:

Pisces

Phase:

99.94% illuminated

Distance:

20.19714338 AU = 3,021,449,644 km = 1,877,441,791 miles = 2.8 light-hours

Magnitude:

5.9

Apparent size:

3.49 arcseconds in angular diameter

Elongation from Sun:

82.18 (morning sky)

Dates of Opposition (when Uranus is closest to the Earth)

Previous:

Tuesday Sep 21, 2010 at 12:51pm

Next:

Sunday Sep 25, 2011 at 8:07pm


On 6/17/2011 at 10:17:57pm Uranus will be 37.3 below the northeast horizon

Click here for additional data on Uranus

(back to 'Quick Links')

.

Neptune data
 
Rises:

  0:29am - Jun 18

Transits:

  5:52am - Jun 18 - Time of highest position in the sky, due South

Sets:

11:16am - Jun 18

Constellation:

Aquarius

Phase:

99.98% illuminated

Distance:

29.55448546 AU = 4,421,288,094 km = 2,747,261,089 miles = 4.1 light-hours

Magnitude:

7.9

Apparent size:

2.31 arcseconds in angular diameter

Elongation from Sun:

115.68 (morning sky)

Dates of Opposition (when Neptune is closest to the Earth)

Previous:

Friday Aug 20, 2010 at 5:59am

Next:

Monday Aug 22, 2011 at 7:18pm


On 6/17/2011 at 10:17:57pm Neptune will be 25.7 below the east-northeast horizon

Click here for additional data on Neptune

(back to 'Quick Links')

.

Pluto (Dwarf Planet aka Asteroid 134340) data
 
Rises:

9:11pm

Transits:

2:08am - Jun 18 - Time of highest position in the sky, due South

Sets:

7:04am - Jun 18

Constellation:

Sagittarius

Phase:

100.00% illuminated

Distance:

31.04777764 AU = 4,644,681,424 km = 2,886,071,270 miles = 4.31 light-hours

Magnitude:

14.2

Apparent size:

0.11 arcseconds in angular diameter

Elongation from Sun:

169.13 (morning sky)

Dates of Opposition (when Pluto is closest to the Earth)

Previous:

Friday Jun 25, 2010 at 2:59pm

Next:

Tuesday Jun 28, 2011 at 1:23am


On 6/17/2011 at 10:17:57pm Pluto will be 9.7 above the east-southeast horizon

Click here for additional data on Pluto

(back to 'Quick Links')


Inner Solar System - the Sun, Mercury, Venus, Earth and Mars on 6/17/2011
(Created using Software Bisque's
TheSky software)
Mercury is setting after the Sun but not yet visible in the evening.  It will reach greatest eastern elongation on July 20, 2011
Venus reached inferior conjunction on Oct 29, 2010 and is now visible in the morning before sunrise
Mars reached conjunction on Feb 4, 2011 and was 220,700,000 miles away.  It's now getting closer and will be closest on 3/3/2012
(back to 'Quick Links')

Outer Solar System - the Sun, Jupiter, Uranus, Neptune and Pluto on 6/17/2011
(Created using Software Bisque's
TheSky software)
The Earth is slowly catching up with Jupiter which will reach western quadrature on Aug 1, 2011
Saturn will reach eastern quadrature on July 3, 2011 and is now visible until it sets at 2:23am
Uranus will reach western quadrature on July 26, 2011
Neptune reached western quadrature on May 22, 2011
Pluto's orbit can be seen to be extremely eccentric (non-circular) and tilted to the plane of the ecliptic.  It will be at opposition on June 28, 2011
(back to 'Quick Links')



Click here for event status

Click here for a printer-friendly version of the information on this page.

Click here for general Information you should know about our events - Q&A of Where, When and What.

Click here for satellite passes this evening

Click here for chart of Solar/Lunar/planet availability for tonight. 

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

 

Web hosting generously provided by