January/February 2018 – Vol. 31 No. 2

Selected Sky Events for August 2012

Posted: Wednesday, August 1st, 2012

by Robert C. Victor

Events for August 7, 13-14, and 20-21 are illustrated below. For illustrations of additional events, refer to the Abrams Planetarium Sky Calendar. Subscription information is available at www.pa.msu.edu/abrams/skycalendar. Here are the selected sky events for August, along with some questions to prompt discussions with students: 

  • Wed. Aug. 1, one hour after sunset: Saturn and Spica are now within 4.5°, forming a nearly isosceles triangle with Mars, within 8° to their west. On Aug. 3, Saturn passes conjunction with Spica in celestial longitude for the third and last time during this apparition. They reach least separation of 4° 27’ apart on Aug. 6 and won’t appear that close again until 2041. 
  • Tues. Aug. 7, one hour after sunset: Mars now pulls to within 4.8° of Saturn and within 4.2° of Spica. Saturn is within 4.5° of Spica. All three sides of the triangle remain less than 5° long tonight through August 20. Image courtesy of Abrams Planetarium. Subscriptions to the sky calendar ar  $11.00 per year, starting anytime, from Sky Calendar, Abrams Planetarium, Michigan State University, 755 Science Rd, East Lansing, MI 48824 or online.
  • Sat. Aug. 11, 1-1/2 hours before sunrise: Here is a beautiful gathering of the waning crescent Moon with bright Jupiter (mag. –2.2), Aldebaran, and the Hyades star cluster. Jupiter is 4° to 5° lower left of the Moon from mid-U.S. (The Moon occults Jupiter by 12 noon from Hawaii). Aldebaran is just over 5° S of Jupiter. There is a triple conjunction of Jupiter and Aldebaran in 2012-2013, in each case the planet going N of the star. Least separations occur on July 30 and December 11 (4.7°), and on March 18, 2013 (5.1° apart).

Also visible this morning, but not shown, is Venus, now 22° lower left of Jupiter. Within a half an hour, watch for Mercury (mag. +0.9), rising 28° lower left of Venus, and Procyon, rising 15° right of Mercury.

  • Mon. Aug. 13, one hour before sunrise: Venus appears within 4° E of the waning crescent Moon from mid-U.S. This is a perfect day to use the Moon to follow Venus long into daylight hours. The Moon occults Venus in afternoon from most of North America, soon after 1 p.m. PDT from U.S. West Coast but just before moonset from E coast. For a map and timetable of disappearance and reappearance, visit www.lunar-occultations.com/iota/planets/0813venus.htm. To convert UT to your local time, use www.lunar-occultations.com/iota/utc.htm Image courtesy of Abrams Planetarium. Subscriptions to the sky calendar ar  $11.00 per year, starting anytime, from Sky Calendar, Abrams Planetarium, Michigan State University, 755 Science Rd, East Lansing, MI 48824 or online.

In morning twilight, Mercury (mag. +0.5) is 28° lower left of Venus. (See Aug. 15 and 16.) Also visible is Jupiter (mag. –2.2), 23° upper right of Venus. Keep watch low in ESE for the rising of the Dog Star Sirius, 26° to the right and a little lower from Procyon, the “before the dog” star announcing the imminent rising of Sirius.

  • Tues. Aug. 14, one hour after sunset: A striking, nearly straight-line arrangement of three bright objects: Saturn (mag. +0.8) highest, with Mars of mag. +1.1 located 2.7 degrees below Saturn on their evening of least separation, and finally +1.0-mag. Spica 1.8° below Mars. Mars and Spica were closest last night, 1.7° apart. Tonight’s distances in light travel time: Mars 14 minutes, Saturn 85 minutes (6 times as far away as Mars), and Spica 260 years.
  • Wed. Aug.15, one hour before sunrise: This morning Venus (mag. –4.4) reaches greatest elongation, 46° W of Sun. Through a telescope it appears as a half-illuminated disk, 0.4 arcminute across. Far to its lower left is a beautiful crescent Moon, with +0.1-mag. Mercury 8° or 9° to its lower left. 
  • Thurs. Aug. 16, 45 minutes before sunrise: This morning is Mercury’s turn to reach greatest elongation, in this case just 19° W of the Sun. Also on this date, Mercury reaches its least distance from Venus during this apparition, 27°. Binoculars might help you spot the thin old crescent Moon, rising about 6° below and a little right of Mercury. The Sun is about 8° below the ENE horizon, 19° lower left of Mercury. 

Visualize this: If you could park yourself in space north (upper left) of the Sun, so you could watch from “above” the solar system to see the planets revolve around the Sun, in which direction would they go? Recall that Venus passed inferior conjunction, between Earth and Sun, during the transit on June 5, and Mercury passed inferior conjunction, but without a transit, on July 28. Both planets pass greatest elongation just a day apart on Aug. 15-16, and are therefore now heading around toward the far side of the Sun. Earth is revolving around the Sun also, but Mercury and Venus, on the inside tracks, are going faster. From the vantage point north of the solar system, the planets revolve counterclockwise around the Sun. Mercury will reach superior conjunction on Sept. 10, but Venus won’t do so until March 2013.

Here is another question to ponder: Venus reaches its greatest brilliance about five weeks before and after inferior conjunction, while it’s in crescent phase about one-fourth full, on the nearer side (but not the closest point) of its orbit. But Mercury is brightest close to superior conjunction, when it is near its maximum distance from Earth. So now, even though both planets are near greatest elongation west of the Sun, Venus is fading and Mercury is getting brighter. Can you explain why?

  • Mon. Aug. 20, one hour after sunset: The triangle Mars-Saturn-Spica, for the last time, is still less than 5° on each side. The shortest side is Mars-Saturn, 4.1° long. Look early to catch the Moon about 12° lower right of Spica.
  • Tues. Aug. 21, one hour after sunset: Here’s a compact gathering of the crescent Moon, two planets, and a star, all within a 6.5° field. Can you fit all four bodies within the field of view of 7-power binoculars? Of the three bright stellar bodies, Mars (mag. +1.2), Saturn (mag. +0.8) and Spica (+1.0), which do you think will still be visible evenings in October? (In fact, it will still be visible at dusk at year’s end.)

I hope you have enjoyed the selection of sky events for August. In the rest of 2012, we’ll see spectacular conjunctions of the waning crescent Moon and Venus before dawn on Sept. 12, Oct. 12, Nov. 11, and Dec. 11. Jupiter will appear near the Moon on the mornings of Sept. 8, Oct. 5 and 6, Nov. 1 and 2, and evenings of Nov. 1, 28, and Dec. 25. Venus and Saturn will appear in a close pairing on the mornings of Nov. 26 and 27. All these and many more events will be illustrated in future issues of Sky Calendar.

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, CA.

 

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Written by Robert Victor

Robert Victor

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, CA. Robert is a member of CSTA.

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  1. Thanks so much for all your good work! I printed it!

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California Science Test Academy for Educators

Posted: Thursday, February 15th, 2018

California Science Test Academy for Educators

To support implementation of the California Science Test (CAST), the California Department of Education is partnering with Educational Testing Service and WestEd to offer a one-day CAST Academy for local educational agency (LEA) science educators, to be presented at three locations in California from 8:30 a.m. to 3:30 p.m. As an alternative to traveling, LEA teams can participate virtually via WebEx on one of the dates listed below.

The dates and locations for the CAST Academy are as follows:

  • Monday, April 23, 2018—Sacramento
  • Wednesday, April 25, 2018—Fresno
  • Thursday, April 26, 2018—Irvine

The CAST Academy will help participants develop a deeper understanding of the assessment design and expectations of the CAST. The academy also will provide information and activities designed to assist educators in their implementation of the California Next Generation Science Standards and three-dimensional learning to help them gain an understanding of how these new science assessment item types can inform teaching and learning. The CAST Academy dates above are intended for school and district science instructional leaders, including teacher leaders, teacher trainers, and instructional coaches. Additional trainings will be offered at a later date specifically for county staff. In addition, curriculum, professional development, and assessment leaders would benefit from this training.

A $100 registration fee will be charged for each person attending the in-person training. Each virtual team participating via WebEx will be charged $100 for up to 10 participants through one access point. Each workshop will have the capacity to accommodate a maximum of 50 virtual teams. Each virtual team will need to designate a lead, who is responsible for organizing the group locally. Registration and payment must be completed online at http://www.cvent.com/d/6tqg8k.

For more information regarding the CAST Academy, please contact Elizabeth Dilke, Program Coordinator, Educational Testing Service, by phone at 916-403-2407 or by e‑mail at caasppworkshops@ets.org.

Written by California Science Teachers Association

California Science Teachers Association

CSTA represents science educators statewide—in every science discipline at every grade level, Kindergarten through University.

Accelerating into NGSS – A Statewide Rollout Series Now Accepting Registrations

Posted: Friday, January 19th, 2018

Are you feeling behind on the implementation of NGSS? Then Accelerating into NGSS – the Statewide Rollout event – is right for you!

WHO SHOULD ATTEND
If you have not experienced Phases 1-4 of the Statewide Rollout, or are feeling behind with the implementation of NGSS, the Accelerating Into NGSS Statewide Rollout will provide you with the greatest hits from Phases 1-4!

OVERVIEW
Accelerating Into NGSS Statewide Rollout is a two-day training geared toward grade K-12 academic coaches, administrators, curriculum leads, and teacher leaders. Check-in for the two-day rollout begins at 7:30 a.m., followed by a continental breakfast. Sessions run from 8:00 a.m. to 4:15 p.m. on Day One and from 8:00 a.m. to 3:30 p.m. on Day Two.

Cost of training is $250 per attendee. Fee includes all materials, continental breakfast, and lunch on both days. It is recommended that districts send teams of four to six, which include at least one administrator. Payment can be made by check or credit card. If paying by check, registration is NOT complete until payment has been received. All payments must be received prior to the Rollout location date you are attending. Paying by credit card secures your seat at time of registration. No purchase orders accepted. No participant cancellation refunds.

For questions or more information, please contact Amy Kennedy at akennedy@sjcoe.net or (209) 468-9027.

REGISTER

http://bit.ly/ACCELERATINGINTONGSS

DATES & LOCATIONS
MARCH 28-29, 2018
Host: San Mateo County Office of Education
Location: San Mateo County Office of Education, Redwood City

APRIL 10-11, 2018
Host: Orange County Office of Education
Location: Brandman University, Irvine

MAY 1-2, 2018
Host: Tulare County Office of Education
Location: Tulare County Office of Education, Visalia

MAY 3-4, 2018
Host: San Bernardino Superintendent of Schools
Location: West End Educational Service Center, Rancho Cucamonga

MAY 7-8, 2018
Host: Sacramento County Office of Education
Location: Sacramento County Office of Education Conference Center and David P. Meaney Education Center, Mather

JUNE 14-15, 2018
Host: Imperial County Office of Education
Location: Imperial Valley College, Imperial

Presented by the California Department of Education, California County Superintendents Educational Services Association/County Offices of Education, K-12 Alliance @WestEd, California Science Project, and the California Science Teachers Association.

Written by California Science Teachers Association

California Science Teachers Association

CSTA represents science educators statewide—in every science discipline at every grade level, Kindergarten through University.

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Written by NGSS Early Implementer

NGSS Early Implementer

In 2015 CSTA began to publish a series of articles written by teachers participating in the California NGSS k-8 Early Implementation Initiative. This article was written by an educator(s) participating in the initiative. CSTA thanks them for their contributions and for sharing their experience with the science teaching community.

2018 CSTA Conference Call for Proposals

Posted: Wednesday, January 17th, 2018

CSTA is pleased to announce that we are now accepting proposals for 90-minute workshops and three- and six-hour short courses for the 2018 California Science Education Conference. Workshops and short courses make up the bulk of the content and professional learning opportunities available at the conference. In recognition of their contribution, members who present a workshop or short course receive 50% off of their registration fees. Click for more information regarding proposals, or submit one today by following the links below.

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California Science Teachers Association

CSTA represents science educators statewide—in every science discipline at every grade level, Kindergarten through University.

CSTA’s New Administrator Facebook Group Page

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From time to time CSTA receives contributions from guest contributors. The opinions and views expressed by these contributors are not necessarily those of CSTA. By publishing these articles CSTA does not make any endorsements or statements of support of the author or their contribution, either explicit or implicit. All links to outside sources are subject to CSTA’s Disclaimer Policy: http://www.classroomscience.org/disclaimer.