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The Observer of the Twin City Amateur Astronomers THE OBSERVER OF THE TWIN CITY AMATEUR ASTRONOMERS Volume 43, Number 9 September 2018 INSIDE THIS ISSUE: 1«Editor’s Choice: September Image – Veil Nebula 2«President’s Note 3«Calendar of Celestial Events – September 2018 3«New & Renewing Members/Dues Blues/E-Mail List 4«This Month’s Phases of the Moon 4«This Month’s Solar Phenomena 4«September 2018: Diminishing Daylight 8«CUAS to Host Summit – Saturday, September 29th 9«First Quarterly Membership Meeting October 16th 10«ALCon 2019 – First Announcement 11«Sea Changes in NCRAL 11«AstroBits – News from Around the TCAA 14«TCAA Photo Gallery 15«NGC 6992-6995 – Veil Nebula 16«A Letter from Rio! 17«Education & Public Outreach for August 2018 18«Remaining Public Viewing Sessions for 2018 19«Recent Spectral Work by Jamey Jenkins 19«TCAA Calendar of Events for 2018-2019 20«Astronomical League Facebook Posts 22«Profiles in Amateur Astronomy: Emily Wade 23«On the Road: More Milky Way Than I’ve Ever Seen 23«HowTimeFlies 24«TCAA Treasurer’s Report as of August 30, 2018 24«TCAA on Facebook and Twitter 25«Renewing Your TCAA Membership EDITOR’S CHOICE: IMAGE OF THE MONTH – VEIL NEBULA The TCAA is an affiliate of the Astronomical League. For This month’s Editor’s Choice: Image of the Month shows the more information about the TCAA, be certain to visit the eastern arc of NGC 6992-6995, the Veil Nebula. This image is a TCAA website. Visit Astroleague.org for additional fragment of a much larger area comprising the loop. Tim Stone, information about the League and its membership who took this image, has written a lengthy article about this entire benefits. Cygnus Loop, and it can be found starting on page 15. Copyright © 2018 TCAA 1 All rights reserved. Vol. 43, No. 9 The OBSERVER of the Twin City Amateur Astronomers September 2018 PRESIDENT’S NOTE The OBSERVER Well, it’s that time of year is the monthly electronic newsletter of Twin again, when we start looking City Amateur Astronomers, Inc., a registered 501(c)(3) non-profit educational forward to cooler weather, clearer organization of amateur astronomers nights, and the holidays. It’s also interested in studying astronomy and the time we start thinking about sharing their hobby with the public. leadership for the club. Yes, that’s right. It’s time to get our minds on TCAA OFFICERS & CHAIRPERSONS who will fill the club’s positions next year. President, Director, & Property Manager Tim Stone 309-531-2401 There are board positions, [email protected] chair positions, and there’s always something for anyone who wants Vice President & Director/Membership Coord. to participate on committees or Tom Willmitch 309-846-2423 [email protected] other business. We have only six board meetings per year, so Treasurer & Director/Registered Agent please don’t think you don’t have TCAA President Tim Stone Dave Osenga 309-287-0789 the time! We deal with mundane business event planning, and generally have a [email protected] good time in the process. The board meeting minutes are published in this Secretary & Director/Historian/Editor newsletter, and the date, time, and location of the next meeting is included in Carl J. Wenning 309-830-4085 those minutes. Won’t you consider becoming more active in our club and [email protected] participate in our leadership? If you would like to do that, please drop any of the Director/Technology Coordinator board members a line! Justin Meyer 630-649-0611 Our August Public Viewing Session, timed to coincide with the peak of the [email protected] Perseid meteor shower, was a record-setter. We estimated that there were at least Astronomical League Correspondent 250 attendees who were very interested to see Perseids, as well as to see what we Robert Finnigan 309-846-9533 showed them in our telescopes. It was amazing to see this many people come out [email protected] for an astronomical event. The night was beautifully clear, moonless, and not too warm. A lot of people took advantage of these conditions. It was especially Webmaster Lee Green 309-454-7349 gratifying to see how many children came out with their parents to appreciate the [email protected] beauty of the night sky. I personally talked to several people who had never seen the Milky Way before. To hear the exclamations when people realize what they are Lighting Educ. & AL Observing Club Coordinator seeing is always a wonderful moment. Lisa Wentzel unlisted number [email protected] With just two more Public Viewing Sessions left this year, I hope you’ll come on out and enjoy this experience with the rest of us, do some of your own observing, Publicist and introduce someone to our wonderful hobby. Rick Lasher 309-530-2678 [email protected] Until then, clear skies! The OBSERVER Tim Stone, President Carl J. Wenning, Editor in Chief Submission deadline two days before the end of each month. MEMBERSHIP DUES Individual Adult/Family $40 Full-time Student/Senior $25 (Senior status equals ages 60+) To join, send your name, contact info and dues payment to Dave Osenga, TCAA Treasurer, 1109 N. Linden St., Normal, IL 61761-1471. Copyright © 2018 TCAA 2 All rights reserved. Vol. 43, No. 9 The OBSERVER of the Twin City Amateur Astronomers September 2018 ALENDAR OF ELESTIAL VENTS EPTEMBER EW ENEWING EMBERS C C E – S 2018 N & R M The following individuals have paid dues for new or MORNING PLANETS (9/15): Mercury & Uranus renewed memberships as of August 30, 2018. (Others EVENING PLANETS (9/15): Venus, Mars, Jupiter, Saturn, & who paid after that date will appear in the October 2018 Neptune issue of The OBSERVER.) The following table gives the date and time (24-hour clock) of important astronomical events for this month. All times are Central Daylight Time. Troy Berg; Chris Franklin; Peter, Sharon, & Daniel Kates, Mark Cabaj Day Time Event DUES BLUES 02 04 Mercury at Perihelion 02 19:34 Aldebaran 1.2°S of Moon If you have received a “your dues are due” statement along with the email that brought you this 02 20:37 LAST QUARTER MOON issue of The OBSERVER, please remit your dues to Mr. 06 16:42 Moon at Ascending Node Dave Osenga, TCAA Treasurer, 1109 N. Linden St., Normal, IL 61761-1471. Dues are currently $25 for 06 20:13 Beehive 1.4°N of Moon seniors (60 years of age and over) and $40 regular. 07 11 Neptune at Opposition 07 19:21 Moon at Perigee: 361355km SUBSCRIBING TO THE TCAA EMAIL LIST 09 12:01 NEW MOON By subscribing to a group’s mailing list, you will 13 20:21 Jupiter 4.4°S of Moon receive email messages from the group though you won’t have access to the group’s web features (like 16 06 Mars at Perihelion photos, files, links, polls, calendar, etc.) unless members 16 17:15 FIRST QUARTER MOON activate it later. The club has an open email listserv. It is 17 10:46 Saturn 2.1°S of Moon known as the TCAA YahooGroups listserv. It will be used to share announcements and reminders about 19 18:54 Moon at Apogee: 404875km astronomical and club events. To join this main listserv, 20 00:38 Mars 4.8°S of Moon you must do the following: 20 03:30 Moon at Descending Node 1. To subscribe: Send a blank email to TCAA- 20 20 Mercury at Superior Conjunction [email protected] Note: You’ll be sent a 22 19:54 Autumnal Equinox confirmation email from the group. Reply to the confirmation email to activate your subscription. 24 20:52 FULL MOON 2. To post a message: [email protected] 30 01:06 Aldebaran 1.4°S of Moon 3. To unsubscribe: [email protected] http://www.astropixels.com/ephemeris/astrocal/astrocal2018cst.html EVENING SKY MAP Click on the icon found here to access a current evening sky map along with a more detailed celestial events calendar. Copyright © 2018 TCAA 3 All rights reserved. Vol. 43, No. 9 The OBSERVER of the Twin City Amateur Astronomers September 2018 THIS MONTH’S PHASES OF THE MOON Last Quarter New Moon First Quarter Full Moon Sunday, September 2 Sunday, September 9 Sunday, September 16 Monday, September 24 All moon phase dates are Central Daylight Time. Additional moon phases for the 2018 calendar year (Central Time) can be found by clicking here. Images provided by J. K. Howell of the Champaign-Urbana Astronomical Society & used with permission. THIS MONTH’S SOLAR PHENOMENA In the table below, you will find times of sunrise and sunset along with rising and setting azimuths, length of day including difference from previous day, start and end times of astronomical twilight, and the time of solar noon along with the elevation of the midday sun. These data come from https://www.timeanddate.com/sun/usa/bloomington 2018 Sunrise/Sunset Day Length Astronomical Twilight Solar Noon Sep Sunrise Sunset Length Difference Start End Time 1 6:23 AM (78°) 7:27 PM (281°) 13:04:32 -2:33 4:46 AM 9:03 PM 12:55 PM (57.6°) 11 6:32 AM (83°) 7:11 PM (276°) 12:38:31 -2:37 4:59 AM 8:44 PM 12:52 PM (53.9°) 6:42 AM (88°) 6:74 PM (271°) 12:12:05 -2:39 5:10 AM 8:26 PM 12:48 PM (50.1°) 21 SEPTEMBER 2018: DIMINISHING DAYLIGHT ~ by Jeffrey L. Hunt ~ September opens with the Winter Triangle ‒ Sirius (α starry background, is 16° up in the south-southeast.
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