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National Capital Astronomers

About NCA

NCA logoServing science and society since 1937. The National Capital Astronomers (NCA) is a non-profit, membership supported, volunteer run, public service corporation dedicated to advancing space technology, astronomy, and related sciences through information, participation, and inspiration, via research, lectures and presentations, publications, expeditions, tours, public interpretation, and education. NCA is the astronomy affiliate of the Washington Academy of Sciences. We are also members of the Astronomical League, in fact NCA members helped form the Astronomical League a long time ago.

NCA has for many years published a monthly newsletter called Star Dust that is available for members. Besides announcement of coming NCA meetings and a calendar of monthly events Star Dust contains reviews of past meeting and articles on current astronomical events.

NCA is a very unusual astronomy organization. All are welcome to join. Everyone who looks up to the sky with wonder is an astronomer and welcomed by NCA. You do not have to own a telescope, but if you do own one that is fine, too. You do not have to be deeply knowledgeable in astronomy , but if you are knowledgeable in astronomy that is fine, too. You do not have to have a degree, but if you do that is fine, too. WE ARE THE MOST DIVERSE local ASTRONOMY CLUB anywhere. Come to our meetings and you will find this out. WE REALLY MEAN THIS!

Our Meetings

Monthly Meetings with Educational Presentations are Free and Open to the Public

NCA has regular monthly meetings September through June on the second Saturday of the month. Most meetings are held at the University of Maryland Astronomical Observatory in College Park, Maryland (directions/map).

Public transportation: Directions/maps to the UMD Observatory
Inclement weather: In case of severe weather (tornado/snow/impassable roads), a notice will be placed on the Observatory Website on the day of the meeting. (Be sure to refresh/reload the page to make sure you are seeing an updated page.)

Meeting Schedule for 2017-2018

Next Meeting Date: Saturday, 10 February 2018

7:30 pm at the University of Maryland Observatory on Metzerott Road.

The New Moon

Speaker: Dr. Brett Denevi, Johns Hopkins Applied Physics Laboratory

Abstract: Although we may not think of the Moon as a dynamic place (the first lunar explorers described the landscape's "magnificent desolation"), its past was one of intense bombardment, floods of lava, and intrusive volcanism, and even today it continues to change. Understanding the Moon's past and present may provide our best opportunity to gain new insights into diverse topics like the early evolution of the Solar System, the timeline of the first development of life on Earth, how a planetary body evolves from a fiery magma ocean to a solid world still cooling off today, and the how often asteroids and comets have struck the surface of the Moon (and thus the Earth) in the past and the present day. The last decade has seen a renaissance in lunar science due to a host of new missions and reexamination of old data and samples; this talk will focus on highlights of these recent results, their significance for our big-picture view of the Solar System, and where we should go next to answer some of our most important outstanding questions.
Physics Today article

Bio: Dr. Brett Denevi is a planetary scientist at the Johns Hopkins Applied Physics Laboratory, and the Deputy Principal Investigator of the Lunar Reconnaissance Orbiter Camera. Her research focuses on the origin and evolution of the surfaces of planets and asteroids, particularly each body's history of volcanism, the effects of impact cratering, and space weathering. Brett is the recipient of the 2015 Maryland Academy of Science outstanding young scientist award, a NASA early career fellowship, six NASA group achievement awards, and asteroid 9026 Denevi was named in her honor.

Weather-permitting, there will be observing through the telescopes after the meeting for members and guests.


Join Us for Dinner Before the Meeting

Telescope-Making and Mirror-Grinding

Telescope-making and mirror-making classes with Guy Brandenburg at the Chevy Chase Community Center, at the intersection of  McKinley Street and Connecticut Avenue, NW, a few blocks inside the DC  boundary, on the northeast corner of the intersection, in the basement  (wood shop), on Fridays, from 6:30 to 9:30 PM. For information visit Guy's Website  To contact Guy, use this phone #: 202-262-4274 or Email Guy.

Come See the Stars at Exploring the Sky 2018!

Exploring the Sky is an informal program that for over sixty years has offered monthly opportunities for anyone in the Washington area to see the stars and planets through telescopes from a location within the District of Columbia.
Sessions are held in Rock Creek Park once each month on a Saturday night from April through November, starting shortly after sunset. We meet in the field just south of the intersection of Military and Glover Roads NW, near the Nature Center. A parking lot is located next to the field.
Beginners (including children) and experienced stargazers are all welcome-and it's free!
Questions? Call the Nature center at (202) 895-6070 or check: Exploring the Sky @ Rock Creek. Download the flier!

Date Time Things of interest
7 Apr 9:00pm Orion nebula, Beehive cluster
5 May 9:00pm Jupiter, Beehive cluster
2 Jun 9:00pm Jupiter, M13
14 Jul 9:00pm Jupiter, Saturn, M13o
11 Aug 8:30pm Jupiter, Saturn, M13
1 Sep 8:00pm Jupiter, Saturn, Mars
6 Oct 7:30pm Saturn, Mars
17 Nov 7:00pm Saturn, Mars, Uranus, Moon
Exploring the Sky is a presentation of the National Park Service and National Capital Astronomers.

For NCA information by E-mail or phone

NCA Documents

HOME | Telescope Making Workshops | Exploring the Sky | Contact Info | Star Dust Archive | Links

Updated by E. Warner on 17 Jan 2018.