Celestial Highlights for September-October and School Year 2013-2014
Posted: Tuesday, September 3rd, 2013
by Robert Victor and Robert D. Miller
Astronomy instruction for elementary and secondary students should not fail to include the inspiration of direct observation of the night sky. Among the common visually impressive events are monthly pairings of Venus and the crescent Moon. While Venus is still visible in the evening sky this school year, Venus-Moon pairings will occur at dusk on 2013 Sept. 8, Oct. 7 and 8, Nov. 6, Dec.5, and on 2014 Jan. 1 and 2. Of these, the pairing on Sunday, September 8 will be the closest, and the Moon will even help the observer spot Venus as they move together across the daytime sky. From California, Moon and Venus appear closest, in the southeast sky shortly after 12:00 noon PDT, with Venus only 0.6 degree, or just over a Moon’s width, from the northern cusp or point of the crescent. When Moon and Venus are highest, due south nearly halfway from horizon to overhead around 3:15 p.m., they’re over a degree apart. By sunset, Venus will appear over 2 degrees to the right of the Moon. As twilight deepens, after 45 minutes look for Spica within 4 degrees to lower right of Venus – binoculars will help pick it out of the bright twilight – and Saturn some 11 degrees upper left of Venus and 9 degrees upper left of the crescent Moon.
Don’t wait until Sunday to have your students begin sky watching! During the week of Labor Day, the star Spica appears quite close to Venus, only 1.6 degrees lower left of the brilliant planet on
Thursday evening, Sept. 5. Venus now moves about a degree daily against the background, so it will be easy to notice changes in their arrangement from one night to the next. A thin crescent Moon can be easily spotted on Saturday evening, Sept. 7, if students look early enough, say half an hour after sunset. Have students keep a log of their sky watching sessions, with notes and drawings of what they see.
On Sunday evening, Sept. 8, as Moon and Venus sink into the west-southwest – because of the Earth’s rotation – the Moon creeps slowly to the upper left of Venus, owing to the Moon’s revolution around the Earth. Check again after sunset on Monday evening, Sept. 9, to see how far the Moon has progressed in 24 hours. On that evening, Saturn appears about 6 degrees to the right of the crescent Moon. By Wednesday evening, Sept. 11, the red supergiant star Antares appears within 7 degrees below the Moon, now nearly half full. On Thursday the 12th, the Moon appears just over half full, having passed First Quarter phase 90° east of the Sun earlier that day.
The Moon is Full overnight Sept. 18-19, rising not long before sunset on the 18th. For the next several evenings, the waning “Harvest Moon” comes up not much later each night, still rising before 9 p.m. on Sept. 22.
Students can follow the waning Moon in the morning sky daily an hour before sunrise from Sept. 19 through Oct. 3, watching it pass, in turn, Aldebaran, Betelgeuse, Jupiter, Pollux and Procyon, Mars, and Regulus. See September’s morning twilight sky map.
Daytime Moonwatch: Teachers may want to bring their students outdoors daily Sept. 23-Oct. 2 to follow the Moon as it changes from 82 percent full on Sept. 23, through 46 percent on Sept. 27 (just after passing Last Quarter phase, when it’s 90 degrees from Sun), to a thin 6 percent crescent on Oct. 2, just 28° from the Sun. Best time for this project is when students are in the playground just before classes start, or right at the start of classes, as late as 9 a.m. This activity can be repeated during Oct. 21-Nov. 1.
Whenever a planet passes near a star or another planet, the event will be great fun to track nightly for a week before and after the night they’re closest. Evening pairs coming soon include Venus-Spica on Sept. 5, Venus-Saturn 3.5° apart on Sept. 17 and 18, and Venus-Antares 1.5° apart on Oct. 16. Antares is the heart of Scorpius, the Scorpion. Our evening twilight chart for September helps pick out Venus, Saturn, and the brightest stars as they appear about 40 minutes after sunset.
Now in the morning sky, bright Jupiter is a slow-moving planet, taking 12 years to make one circuit around the belt of zodiac constellation. During the 2013-2014 school year, note the changing shape of the triangle Jupiter makes with the Gemini twin stars of Pollux and Castor. During Labor Day week, these twin stars appear 11°-12° lower left of Jupiter, while Mars appears some 20° more steeply lower left of Jupiter. On the weekend of Sept. 7-9, Mars passes through the Beehive Cluster of faint stars, an event best seen with binoculars. In a colorful, very pretty pairing on the morning of Oct. 15, reddish Mars will pass within 1.0 degree of the blue-white 1.4-magnitude star Regulus, heart of Leo, the Lion.
Planetary Highlights of School Year 2013-2014
Venus appears at “greatest elongation”, farthest from Sun in our sky, 47° both times, on 2013 Oct. 31 in the afternoon and evening sky, and 2014 March 22 in the morning. Through a telescope near those dates, Venus appears as a tiny “half moon.” About midway between those dates, on 2014 Jan. 11, Venus passes nearly between Earth and Sun, and appears as a large, very thin crescent. Five weeks before and after this “inferior conjunction”, Venus reaches “greatest illuminated extent,” taking up the greatest apparent area in our sky, and appears near its greatest brilliancy at about –4.9, and shows through binoculars as a crescent about 25 percent illuminated. The 20 weeks from end of October to late March will be an exciting time to follow Venus as the backlit planet swings close to Earth and displays all its crescent phases, in the daytime as well as at dusk or dawn.
Jupiter is at its brightest (mag. –2.7) and is visible all night in early January 2014 as Earth overtakes it on Jan. 5. For nearly six months after this “opposition” of Jupiter, until early July 2014, Jupiter will remain visible in the evening sky.
Mars is at its biennial closest approach (57 million miles this time) and brightest (mag. –1.5, about as bright as Sirius), as Earth overtakes it in April, creating another opposition, on Apr. 8. A total lunar eclipse on the night of April 14-15 will feature the 1.0-magnitude star Spica and brilliant Mars nearby.
Saturn is at its closest and brightest (mag. +0.1) and visible all night in early May 2014, as Earth overtakes it on May 10, creating the third opposition of an outer planet in just over four months.
Mercury becomes visible low in the WNW early evening sky in early May. From then until early June, there are four bright planets simultaneously visible at dusk. In order from east to west, they are Saturn, Mars, Jupiter, and Mercury.
Robert C. Victor was Staff Astronomer at Abrams Planetarium, Michigan State University. He is now retired and enjoys providing skywatching opportunities for school children in and around Palm Springs.
Robert D. Miller, who provided the twilight charts, did graduate work in Planetarium Science and later astronomy and computer science at Michigan State University and remains active in research and public outreach in astronomy.
Posted: Tuesday, March 14th, 2017
The pre-publication version of the new California Science Curriculum Framework is now available for download. This publication incorporates all the edits that were approved by the State Board of Education in November 2016 and was many months in the making. Our sincere thanks to the dozens of CSTA members were involved in its development. Our appreciation is also extended to the California Department of Education, the State Board of Education, the Instructional Quality Commission, and the Science Curriculum Framework and Evaluation Criteria Committee and their staff for their hard work and dedication to produce this document and for their commitment to the public input process. To the many writers and contributors to the Framework CSTA thanks you for your many hours of work to produce a world-class document.
For tips on how to approach this document see our article from December 2016: California Has Adopted a New Science Curriculum Framework – Now What …? If you would like to learn more about the Framework, consider participating in one of the Framework Launch events (a.k.a. Rollout #4) scheduled throughout 2017.
The final publication version (formatted for printing) will be available in July 2017. This document will not be available in printed format, only electronically.
Posted: Monday, March 13th, 2017
The 2017 Award Season is now open! One of the benefits of being a CSTA member is your eligibility for awards as well as your eligibility to nominate someone for an award. CSTA offers several awards and members may nominate individuals and organizations for the Future Science Teacher Award, the prestigious Margaret Nicholson Distinguished Service Award, and the CSTA Distinguished Contributions Award (organizational award). May 9, 2017 is the deadline for nominations for these awards. CSTA believes that the importance of science education cannot be overstated. Given the essential presence of the sciences in understanding the past and planning for the future, science education remains, and will increasingly be one of the most important disciplines in education. CSTA is committed to recognizing and encouraging excellence in science teaching through the presentation of awards to science educators and organizations who have made outstanding contributions in science education in the state and who are poised to continue the momentum of providing high quality, relevant science education into the future. Learn More…
Posted: Monday, March 13th, 2017
CSTA is now accepting applications from regular, preservice, and retired members to serve on our volunteer committees! CSTA’s all-volunteer board of directors invites you to consider maximizing your member experience by volunteering for CSTA. CSTA committee service offers you the opportunity to share your expertise, learn a new skill, or do something you love to do but never have the opportunity to do in your regular day. CSTA committee volunteers do some pretty amazing things: Learn More…
Posted: Monday, March 13th, 2017
by Marian Murphy-Shaw
If you attended an NGSS Rollout phase 1-3 or CDE workshops at CSTA’s annual conference you may recall hearing from Chris Breazeale when he was working with the CDE. Chris has relocated professionally, with his passion for science education, and is now the Executive Director at the Explorit Science Center, a hands-on exploration museum featuring interactive STEM exhibits located at the beautiful Mace Ranch, 3141 5th St. in Davis, CA. Visitors can “think it, try it, and explorit” with a variety of displays that allow visitors to “do science.” To preview the museum, or schedule a classroom visit, see www.explorit.org. Learn More…
Posted: Monday, March 13th, 2017
by Joseph Calmer
Probably like you, NGSS has been at the forefront of many department meetings, lunch conversations, and solitary lesson planning sessions. Despite reading the original NRC Framework, the Ca Draft Frameworks, and many CSTA writings, I am still left with the question: “what does it actually mean for my classroom?”
I had an eye-opening experience that helped me with that question. It came out of a conversation that I had with a student teacher. It turns out that I’ve found the secret to learning how to teach with NGSS: I need to engage in dialogue about teaching with novice teachers. I’ve had the pleasure of teaching science in some capacity for 12 years. During that time pedagogy and student learning become sort of a “hidden curriculum.” It is difficult to plan a lesson for the hidden curriculum; the best way is to just have two or more professionals talk and see what emerges. I was surprised it took me so long to realize this epiphany. Learn More…