Public Viewing


The Cline Observatory is open to the public for viewing every clear Friday night throughout the year. Cline Observatory public viewing sessions are canceled until further notice.

The viewings begin a half hour after sunset during March-October, and at 7:00 during November-February. (Determine sunset time for a particular date.) Sessions usually last about two hours, but may run longer or shorter depending on interest and sky conditions.  Our sessions are unstructured – there’s no program – just telescopic viewing.

Note that the observatory is open to the night air, and so will be cold in the winter and warm in the summer. Be sure to dress for the conditions.

For updates regarding how weather or other issues will affect this week’s session, check our Twitter Updates Page @gtccastro.

For other questions about the observatory and its programs, contact Tom English at or 336-334-4822 Ext. 50023.

There is no charge for public night viewing and the observatory is open to anyone wishing to attend. No reservations are necessary, and there are no limits on the number of attendees. (We do ask that you let us know well ahead of time if you plan to bring a large group.)

Public Viewing Schedule

Note: Cline Observatory public viewing sessions are canceled until further notice.

February Sessions (Sessions start at 7:00 p.m.)
Date Featured Object Host
7 February Winter Double Stars Christina Guzik
14 February Venus Jeff Swanson
21 February The Orion Nebula Aaron Martin
28 February The Perseus Double Cluster Beth Desch
Sessions Continue in March

January Sessions (Sessions start as darkness falls)
Date Featured Object Host
6 March The Moon Jeff Regester
7 March (Sat) Post-TriStar Session Gregory Brannon
13 March Open Cluster NGC 2362 Robert Royals
20 March The Eskimo Nebula Kevin Erdy
27 March Open Cluster M41 Host TBA
Sessions Continue in April

April Sessions (Sessions start as darkness falls)
Date Featured Object Host
3 April Double Star h3945 – the Winter Albireo (Viewing begins after lecture) Alec LaGrega
10 April Open Cluster M35 Errika Wyatt
17 April Galaxies M81 & M82 Brian Morris
24 April Statewide Star Party – Seeing the Universe Zach Young
Sessions Continue in May 

May Sessions (Sessions start as darkness falls)
Date Featured Object Host
1 May The Moon David Connor
8 May The Beehive Cluster Miranda Williams
15 May The Sombrero Galaxy Host TBA
22 May Object TBA Host TBA
29 May Object TBA Host TBA
Sessions Continue in June

Special Viewing Sessions – Eclipses, Transits, Etc.

Occasionally, Cline Observatory holds viewing sessions for special events such as eclipses, transits, or other remarkable astronomical phenomena. These sessions are presented in the same manner as our Friday public viewings, though if the situation requires, we may shift our portable telescopes to other locations on campus.

As with our Friday public viewings, all Cline Observatory special viewing sessions are free and open to anyone with an interest in astronomy.

Recent special sessions we have scheduled include:

  • Total Lunar Eclipse Jan. 20, 2019
  • Expedition to Newberry, SC for Total Solar Eclipse of Aug. 21, 2017
  • Partial Solar Eclipse Oct. 23, 2014
  • Venus Transit June 5, 2012
  • Lunar Eclipse Dec. 10, 2010 (cloudy)
  • Total Lunar Eclipse Feb. 21, 2008
  • Total Lunar Eclipse  March 3, 2007
  • Mercury Transit  Nov. 8, 2006 (cloudy)
  • Total Lunar Eclipse  Oct. 27, 2004
  • Venus Transit  June 6, 2004 (cloudy)

Transits of Venus & Mercury

Three hundred visitors came to GTCC to observe the 2012 Venus Transit – a phenomenon that will not be seen on Earth again until 2117. For more information about this event and other transits, see our Transits page.

Lunar and Solar Eclipses

Cline Observatory is open for viewing lunar and solar eclipses visible in our area. Details about upcoming eclipses will be posted on our Eclipses page.

Meteor Showers

Cline Observatory DOES NOT hold special sessions for meteor showers because they are best observed without telescopes, and are usually best seen from dark locations between midnight and dawn.

The American Meteor Society provides an annual meteor shower calendar,  guides to visual observation of meteors, and weekly updates on meteor activity.  The International Meteor Organization provides annual shower calendars, visual meteor observing resources, and regular outlooks on meteor activity.