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Star Dust If Undeliverable, Return to NCA C/O Elizabeth Warner Newsletter of National Capital Astronomers, Inc National Capital Astronomers, Inc. Star Dust If undeliverable, return to NCA c/o Elizabeth Warner Newsletter of National Capital Astronomers, Inc. capitalastronomers.org 400 Madison St #2208 Alexandria, VA 22314 June 2015 Volume 73, Issue 10 First Class Next Meeting Dated Material Science Fair Winners When: Sat. June 13th, 2015 John Hornstein Time: 7:30 pm Each spring, the NCA sends judges to local regional science fairs in order Where: UMD Observatory to identify good projects in astronomy. Speaker: Science Fair Winners! Our awards consist of: Table of Contents A certificate One year of free membership An invitation to speak at our in the NCA Science Fair Winners 1 June meeting A one year subscription to Sky Watchers 2 Sky & Telescope Major Tom Rides Again 2 Congratulations to the following 2015 winners (in alphabetical June Election Information 4 order): Occultations 5 Elias Applebaum (Eastern Middle School) Bring your Astro Photos 6 Mirror, Mirror: Solving the Turned-Down Edge Optical Defect Calendar 7 in Parabolic Reflecting Telescopes Directions to Dinner/Meeting Isaac Applebaum (Eastern Middle School) Our time and location for dinner with the speaker before this meeting is 5:30 pm at Mirror, Mirror: Solving the Turned-Down Edge Optical Defect “The Common,” the restaurant in the in Parabolic Reflecting Telescopes Next NCA Meeting: Inside This Issue UMD University College building located th at 3501 University Blvd. Shraeya Madhu (Poolesville High School) 2015 June 13 The meeting is held at the UMD Ferrying the Fluid Science Fair Winners 1 Astronomy Observatory on Metzerott Rd about halfway between Adelphi Rd and Mithi Penaranda (St. Timothy Catholic School) 7:30 pm Sky Watchers 2 University Blvd. Can you Spot the Sunspot? Need a Ride? Major Tom Rides Again 2 Marinna Rodarte (Nativity School) @ UMD Observatory Please contact Jay Miller, 240-401-8693, if you need a ride from the metro to Reach for the Stars [Parallax] June Election Information 4 dinner or to the meeting @ observatory. Please try to let him know in advance by Kennedy Salamat (North Bethesda Middle School) Science Fair Occultations 5 e-mail at [email protected]. Effect of Solar Mass Loss on the Orbital Stability of Bring Your Astro Photos 6 Observing after the Meeting Lagrangian Points L1, L2, L4 and L5 in Sun-Earth System Winners Following the meeting, members and Tanya Vorder Bruegge (Holy Cross Academy) Calendar 7 guests are welcome to tour through Are the Stars Going Out? the Observatory. Weather-permitting, several of the telescopes will also be P. J. Whitworth (Our Lady of Good Counsel School) set up for viewing. Light Pollution in Our Eye Star Dust © 2015. Star Dust may be reproduced with credit to National Capital Astronomers, Inc. June 2015 Vol 73, Iss 10 2 June 2015 Vol 73, Iss 10 7 Reminder Bugblatter Beast of Traal? No Calendar of Events Sky Watchers Summer Schedule Problem! I’ve got a Towel! After the meeting, everyone is invited to June NCA Mirror- or Telescope-making Classes: Tuesdays and Fridays, from 6:30 to join us at Plato's Diner in College Park. 9:45 pm at the Chevy Chase Community Center (intersection of McKinley Street Plato's is located at 7150 Baltimore Ave. 12:19 pm – Full Moon, Global. and Connecticut Avenue, N.W.) Contact instructor Guy Brandenburg at 202- Other Moon Names: Full Strawberry Moon (Native 635-1860 or email him at [email protected]. (US Rt. 1 at Calvert Rd.), just south of 2 the university's campus. What if it's clear American - for the time of ripening fruit), Full Rose Moon Open house talks and observing at the University of Maryland Observatory in and you want to stick around and (Europe) College Park on the 5th and 20th of every month at 8:00 pm (Nov.-Apr.) or 9:00 pm observe? No problem -- just come over (May-Oct.). Details: www.astro.umd.edu/openhouse when you're through. This is very 9:00 pm - Exploring the Sky, Local. Phoebe Waterman Haas Public Observatory at the National Air & Space informal, and we fully expect people to 6 eatures: Jupiter, Venus & Vega wander in and out. Museum, Solar viewing, Wed. – Sun., 12 – 3 pm (weather permitting). ________________________ Evening – Globe at Night, Global. Astronomy Festival on the National Mall: Fri. June 19, 6 – 11 pm at the Washington Monument. Captain Neutron Meets 8-17 Features: Constellation Boötes (N. Hemisphere) & Scorpius (S. Hemisphere) Mid-Atlantic Senior Physicists Group: “Applications of Quantum Information Hard Science Courtesy Sam Christoforetti Science for the Next Decade” with Jacob Taylor (NIST & UMD), Wed. June 24*, 10:00 pm – Planets, N. Hemisphere. Mercury 0.04⁰ north of at 1 pm at the American Center for Physics (1st floor conference room). 14 ISS astronaut, Samantha Christoforetti, th rd Moon www.aps.org/units/maspg/ * This is the 4 Wed. instead of the 3 . is wearing a “Don’t Panic” shirt as she reads from The Hitchhiker’s Guide to the Wallops Flight Facility 70th Anniversary Open House, Sat. June 27, 10 am – 4 pm Galaxy and holds a towel. The author of 20 8:00 pm – Planets, N. Hemisphere. Jupiter 5º north of Moon in Wallops Island, VA. the guide, Doug Adams, is celebrated www.nasa.gov/content/wallops-flight-facility-70th-anniversary every May 25th (aka,”Towel Day”) as 1st Annual Asteroid Day: Tues. June 30, worldwide. www.asteroidday.org/ fans carry their space towels, especially 21 12:39 pm – Summer Solstice, N. Hemisphere. fans who are actually in space! Upcoming NCA Meetings at the University of Maryland Observatory: __________________________ 13 June: Science Fair Winners, Astrophotography & Elections! 22 Clear Skies! 2:00 am – Meteors, N. Hemisphere. Boötids (northwest sky). (peak) National Capital Astronomers Membership Form Evening – Planets, N. Hemisphere. Venus & Jupiter appear < 1º Name: ______________________________________________________ Date: ___/___/___ 30 apart (look in western sky after sunset) Address: ____________________________________________________ ZIP Code: ______ Times EDT continued on page 3 Home Phone: ____-____-_____ E-mail: ____________________ Print / E-mail Star Dust (circle one) _________________________________________________ Membership (circle one): Student….. $ 5; Individual / Family…..$10; Optional Contribution…..$__ Major Tom Rides Again Please indicate which activities interest you: Commander Chris Hadfield made a . Attending monthly scientific lectures on some aspect of astronomy ____ video in May 2013 as his goodbye . Making scientific astronomical observations ____ to the International Space Station . Observing astronomical objects for personal pleasure at relatively dark sites ____ (ISS). He used David Bowie’s . Attending large regional star parties ____ “Space Oddity” and had legal rights . Doing outreach events to educate the public, such as Exploring the Sky ____ to post the ISS version for 1 year . Building or modifying telescopes ____ (after which, YouTube removed it). Participating in travel/expeditions to view eclipses or occultations ____ . Combating light pollution ____ However, in late 2014, Hadfield announced that (after a somewhat Do you have any special skills, such as videography, graphic arts, science education, electronics, machining, etc.? lengthy legal rights process) the video would be available again with a 2-year agreement. If you haven’t Are you interested in volunteering for: Telescope making, Exploring the Sky, Star Dust, NCA Officer, etc.? Courtesy Chris Hadfield seen it, here’s your last chance! continued on page 6 So, with over 25 million views, here is Cmdr. Hadfield’s ISS Oddity: Please mail this form with check payable to National Capital Astronomers to: https://youtu.be/KaOC9danxNo. Henry Bofinger, NCA Treasurer; 727 Massachusetts Ave. NE, Washington, DC 20002-6007 Star Dust © 2015. Star Dust may be reproduced with credit to National Capital Astronomers, Inc. Star Dust © 2015. Star Dust may be reproduced with credit to National Capital Astronomers, Inc. June 2015 Vol 73, Iss 10 6 June 2015 Vol 73, Iss 10 3 Sky Watchers – continued from page 2 2014-2015 Officers Bring Your Astro Photos to the Meeting ________________________ President: John Hornstein Exploring the Sky Sky Watchers Summer Schedule Alexander Klein ________________________ [email protected] Our members make striking photos of astronomical objects, and we all July 301-233-8406 (c) want to see them. Therefore, bring favorite photos that you have made of astronomical objects this year to show at the June meeting. If you bring “Exploring the Sky” is an informal Evening – Planets, N. Hemisphere. Venus & Jupiter appear < 1º Vice-President: program that, for over 60 years, has them on a USB data stick, we can project them from the Observatory's apart (look in western sky after sunset) John Hornstein offered monthly opportunities for computer. Expect some audience members to come up to you after 1 10:20 pm – Full Moon, Global. [email protected] everyone has shown their photos, to ask you how you made yours. 301-593-1095 (h) Other Moon Names: Full Buck Moon (for the time bucks grow new antlers), Full Thunder Moon Secretary-Treasurer: **To save time, please bring only your astronomical objects photos** Henry Bofinger ________________________________________________ 4:00 pm – Planets, Global. Earth at aphelion (94.5 million miles [email protected] from Sun) 202-675-1075 Captain Neutron Meets Hard Science – 6 Evening – Planets, N. Hemisphere. Pluto visibility continued from page 2 Asst. Secretary-Treasurer: greatest (mag. 14.1 in Constellation Sagittarius) Jeffrey B. Norman [email protected] anyone in the Washington area to see Evening – Globe at Night, Global. the stars and planets through 7-16 Features: Constellation Boötes (N. Hemisphere) & Trustees: telescopes from a location within the Scorpius (S. Hemisphere) • Wayne Warren (2015) District of Columbia. Presented by the National Park Service 9 Evening – Planets, N. Hemisphere. Venus brightest (mag. - 4.7) • Harold Williams (2016) (used with • Benson Simon (2017) hubble25th.org/ permission) and National Capital Astronomers, sessions are held once a month, from • Joe Morris (2018) 9:00 pm - Exploring the Sky, Local.
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