400 College Avenue - Lancaster, PA 17603-3393 Phone: (717) 291-3941
    HOURS: Tuesday - Saturday from 10 a.m. to 5 p.m. & Sunday from 12 noon to 5 p.m.

    DateEvent
    03/13/10
    10:30 AM
    Grands are Grand!
    03/18/10
    03:30 PM
    Coffee and Conversation - Jay Parrish
    03/31/10
    07:00 PM
    Bill Thompson Lecture - No Child Left Inside
    04/04/10
    10:00 AM
    Closed for Easter
    04/05/10
    01:00 PM
    Open Family Science MONDAY
    04/10/10
    10:30 AM
    Grands are Grand!
    04/10/10
    12:00 PM
    Cub Scout Belt Loop Day
    04/15/10
    03:30 PM
    Coffee and Conversation
    04/17/10
    01:00 PM
    Chocolate Moose Daze
    04/18/10
    01:00 PM
    Chocolate Moose Daze

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    COSMIC Mike's® Monthly Sky Calendar

     
    Planetary Roundup / Lunar Calendar

    International Space Station Sightings / Clear Sky Clock / Grundy Observatory

     

    Cosmic Mike's® Astronomy Update

    Have you ever wonder which planets are currently visible?  What's that bright object by the moon?  Or when is the next big celestial event? 

    If you have an interest, no matter how big or small, in the night sky and what's currently visible Cosmic Mike's Astronomy Updates can help.  Mike Smith, Senior Astronomy Educator, keeps you posted on all things astronomical with his monthly astronomy update. 

    To start receiving the astronomy updates when they are first released contact Mike by email at cosmicmike@northmuseum.org  Don't miss that next big celestial event.  Sign up today. 

     

    This month's Cosmic Mike's Astronomy Update: February 2010 ( PDF format )

    Please Note: Starting March 1, the astronomy update will be in a new format and no longer available as a PDF. 

     

    Celestial Highlights

    March 20 - Don't miss the last Pleiades occultation until 2023!

    The Pleiades, aka, seven sisters, is a well known open star cluster. On March 20, the cluster is located high in the west around 7 p.m. with the moon sitting nearby. Observers will be able to watch the waxing crescent moon pass through the southern most border of the cluster.

     

    March 23-25 - Seeing Triangles?  Mars, Castor, Pollux, and the moon join in the sky
    If you ever needed help finding Mars, the moon is your man.  Mars, Castor, Pollux will form an arc above the first quarter moon on the evening of the 24th.



     Planetary Roundup
      

    as of March 1 Mercury Venus Mars Jupiter Saturn
    Constellation Aquarius Pisces Cancer Aquarius Virgo
    Magnitude - 1.2 - 3.8 - 0.4
    - 1.9 0.6
    Direction n/a W overhead n/a E
    Rises (EST) n/a n/a n/a
    n/a
    7:02 p.m.
    Sets (EST) n/a 7:07 p.m. 4:40 a.m. n/a n/a

    Sunset: 6:04 p.m. EST                      Sunrise: 6:27 a.m. EST

    Evening Planets:

    Venus - The hottest planet isn’t hot because it is only twelve degrees from the sun, but it will catch your attention due to its brightness. With a magnitude of –3.8 all month, there’s no mistaking it if you’re looking low in the west, but you’ll have to look quick unless you wait later in the month. Venus starts the month about half a fist width above the western horizon and only visible for an hour. As the month progresses, the scorching  planet will slowly climb into better view.

     

    Mars - Shrinking and fading certainly do not seem like a good combination but our planetary neighbor can handle a little dimming, at least for this month. The orange-yellow planet will outshine its nearby stars high in the east-southeast after sunset through March, getting even higher in the south as the night progresses. He forms a crooked line with the stars Castor and Pollux in the constellation Gemini the Twins.  For those with telescopes, don’t get discouraged, this is still a great time to observe the desert surface of Mars.

    By March 11th, Mars will pull a “U-ie” in the sky as it freezes its retrograde, or westward, motion and begins to move back eastward toward Cancer’s center and the Beehive Star Cluster.

    March 30th - Mars reaches aphelion (farthest from the sun)


    Saturn - Despite its rings displaying a minor tilt, you won’t want to miss Saturn. At the start of the month, the ringed planet will be high above the trees in the southeast around 8 p.m. Saturn will outshine the stars of its host, Virgo the Maiden, but will be much dimmer than Mars overhead. By the first day of spring, March 21, Saturn reaches opposition, rising at sunset and setting at sunrise. Opposition is usually when the planet appears at its maximum apparent size in a telescope and brightness. This time around, however, Saturn will be only a little brighter than Betelgeuse of Orion the Hunter instead of rivaling the brightest star in the sky. As for the rings, they’re only tilted four degrees from our line of sight and decreases to three degrees at the end of March.

     

    Planets Currently Not Visible:

    Mercury - The innermost planet is missing in action until month’s end as it will enter superior conjunction on March 14. At that time, Mercury will pass behind the sun from east to west as viewed from Earth. When the smallest planet reappears in our sky, it will be visible in the west for an half hour after sunset, but only hovering about a fist width above the western horizon. On March 31st, Mercury will shine fairly bright and begins its approach to Venus, from our perspective. Sitting about 3.5 fist widths to the lower of the brighter Venus, the two will be even closer in early April.

    Jupiter - The mighty planet has finally abdicated its reign in the evening sky and passed in conjunction with the Sun on February 28th.  March will not be a good month for viewing Jupiter; however, for those who insist on locating it, look very low in the bright dawn eastern sky 20 to 30 minutes before sunrise at the end of the month. Binoculars may be needed.

     Lunar Calendar

     

     

    Last Quarter Moon  - March 7

    New Moon - March 15

    First Quarter Moon - March 23

    Full Moon  - March 29


     
      March 16 - Thin crescent moon above Venus (30 minutes after sunset, very low in the west)

        March 17 - Thin crescent moon to the right of Venus (30 minutes after sunset, very low in the west)

        March 20 - Waxing crescent moon near Pleiades star cluster (after sunset, west)

        March 21 - First quarter moon to the upper right of the bright star Aldebaran (after sunset, west)

     


     International Space Station Sightings

    Did you know that you can spot the International Space Station from your very own backyard without the aid of a telescope?  Click on the icon for listing for the Lancaster, PA area.

    When is the ISS visible?

    through March 23 - EVENING hours

    Clear Sky Clock

    At a glance, this astronomer's forecast shows when it will be cloudy or clear for up to two days.  It's a prediction of when Lancaster, PA will have good weather for astronomical observing.   Click on the actual clear sky chart for detailed information in how to read it.  For example, dark blue for cloud cover means clear skies but there is more to good observing conditions than just cloud cover.

     

     Franklin & Marshall College's Grundy Observatory

    • Open every third Monday of each month, weather permitting.
    • Observing starts one hour after sunset, but no earlier than 6:30 p.m.
    • Open to the public, FREE admission

    Next public observing session: Monday, March 15

    For information regarding Grundy's public observing session please visit http://fandm.edu/x11609.xml

    For current information as to whether the observatory will be open or closed, please visithttp://home.comcast.net/~jerimagoon on the day of the public observing session.

    Directions to the Grundy Observatory

    The Grundy observatory is located on Baker Campus off of Harrisburg Pike.

    • From Harrisburg Pike turn onto President Avenue.
    • Head south on President.
    • Turn right onto Hillcrest, toward Lancaster Country Day School.
    • Continue to Wilson Drive (first stop sign), turn right. 
    • Go north on Wilson to the very end of the street, where you see a chain link fence and gate ahead of you.
    • Drive through the gate and keep going until you see the observatory.  Parking is available beside the building.  If lot is full additional parking is available just pass the gate on the right.