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Astronomy
Welcome to the Boston Astronomy website ...

This website has been created by and is supported by a group of Boston, MA - area amateur astronomers. It is intended to be a convenient site to access news and information about astronomy and space-related activities of interest to the community and the public.


















       

            


                         


                       

       Astronomy Class Observatory Trip for April 24 CANCELLED!

               

     We are expecting mostly cloudy weather this Tuesday.

         

The trip will be rescheduled for another date (tentatively, May 22).

  

This week's class will meet as usual at the Cambridge Center of Adult Education.

                   


 


    

New Astronomy Course!

         

Introduction to Astronomy

         

We sit around our campfires as the ancients did, and ponder. How did the Universe come into existence? How did life begin? Are we alone? But now we see a Universe around us containing black holes, dark matter, and expanding space. What does it all mean? In this course we’ll sit around our own campfire, and try to piece together the stories that modern astronomy is teaching us.  

     

One meeting will be at a local observatory.

     

No math or science background required!

    

Meets at the Cambridge Center for Adult Education, 8 Tuesdays: April 3, 2018 - May 22, 2018, 7:45 PM - 9:15 PM.

        

Cost: $ 200.00. REGISTER

                                                        


          

 April Astronomy-Related Events in the Boston Area  

                                                   

            

Thursday, April 12, 2018, 8:00 PM - 10 PM

Amateur Telescope Makers of Boston (ATMoB) Monthly Meeting

Harvard-Smithsonian Center for Astrophysics

60 Garden St.

Cambridge, MA 02138

http://www.atmob.org

Topic and Speaker: Mapping the Milky Way – Mark J. Reid

Over 2000 years ago, Hipparcus measured the distance to the Moon by triangulating from two locations across the Mediterranean Sea. However, determining distances to stars proved much more difficult. Many of the best scientists of the 16th through 18th centuries attempted to measure stellar parallax, not only to determine the scale of the cosmos but also to test Heliocentric cosmologies.  While these efforts failed, along the way they lead to many discoveries, including atmospheric refraction, precession, and aberration of light.  It was not until the 19th century that Bessel measured the first stellar parallax.
Distance measurement in astronomy remained a difficult problem even into the early 20th century, when the nature of "spiral nebulae" was still debated.  While we now know the distances of galaxies at the edge  of the Universe, we have only just begun to measure distances accurately throughout the Milky Way.  Using the Very Long Baseline Array of radio telescopes, we now can achieve parallax accuracies of 10 micro-arcseconds!  I will present new results on parallaxes and motions of star forming regions  from the BeSSeL Survey.  These measurements address the nature of the spiral structure, size, rotation speed, and mass of the Milky Way.

    

     

Friday, April 13, 2018 - Sunday, April 22, 2018 

Cambridge Science Festival
There are hundreds of events - most of them FREE - in the works for this year's festival!
http://cambridgesciencefestival.org/Home.aspx 

      

   

Thursday, April 19, 2018, 7:30 PM

CfA Public Observatory Night

Harvard-Smithsonian Center for Astrophysics

60 Garden St.

Cambridge, MA 02138

 "Taking A Photograph of a Black Hole", Shep Doeleman, Smithsonian Astrophysical Observatory, Astronomer & Director, Event Horizon Telescope Project

Black holes are the most exotic objects thought to exist in the universe, but no one has ever seen one. In this talk, Dr. Shep Doeleman, astronomer at the Smithsonian Astrophysical Observatory, will explore the evidence for black holes, and describe an effort to link radio dishes around the world to form an Earth-sized virtual telescope that can capture the first images of the supermassive black hole at the center of the Milky Way.

See for future events: https://www.cfa.harvard.edu/publicevents

      

    

Thursday, April 19 - Friday, April 20, 2018

Northeast Astro Imaging Conference
Holiday Inn
Suffern, NY
Sponsored by the Rockland AstronomyCLub
http://www.rocklandastronomy.com/NEAIC/

  

  

Saturday, April 21 - Sunday, April 22, 2018

Northeast Astronomy Forum and Telescope Show
Suffern, NY
Sponsored by the Rockland Astronomy Club
http://www.rocklandastronomy.com/neaf.htm

       

    

Saturday, April 21, 2018     

National & International Astronomy Day
https://www.astroleague.org/files/astroday/ADFactSheet2014Final.pdf

     

     

Sunday, April 22, 2018, 12:00 PM - 4 PM

Cambridge Explores the Universe (Part of the Cambridge Science Festival)

Harvard-Smithsonian Center for Astrophysics

60 Garden St.

Cambridge, MA 02138

https://www.cfa.harvard.edu/publicevents

Become an astronomer for a day! Enjoy exploration stations that include hands-on-activities, telescope tours, solar observing, a tech hub, and even visit our historic photographic plate stacks! There's also a chance to ask our experts all of your burning questions about space and the universe at our "Ask an Astronomer" tables. Don't miss this opportunity to find out the latest discoveries about the sun, exoplanets, black holes, and more! This event is presented as part of the Cambridge Science Festival and is perfect for all ages!

     

    

Sunday, April 22, 2018, 8:00 PM - 10 PM

Astronomy Day Star Party (Part of the Cambridge Science Festival)

Harvard-Smithsonian Center for Astrophysics

60 Garden St.

Cambridge, MA 02138

https://www.cfa.harvard.edu/publicevents

Join a star party in honor of Astronomy Day! Rooftop viewing through telescopes. See the Moon, Venus, double stars, star clusters, and more! This event is weather dependent; call 617-495-7461 to check for cancellation. Cost: Free. Drop-In.

 

 

Thursday, May 10, 2018, 8:00 PM - 10 PM

Amateur Telescope Makers of Boston (ATMoB) Monthly Meeting

Harvard-Smithsonian Center for Astrophysics

60 Garden St.

Cambridge, MA 02138

http://www.atmob.org

Topic and Speaker: (TBA)

  

  

Thursday, May 17, 2018, 7:30 PM

CfA Public Observatory Night

Harvard-Smithsonian Center for Astrophysics

60 Garden St.

Cambridge, MA 02138

"Extreme Spacecrafting: NASA's Parker Solar Probe",

Tony Case, Smithsonian Astrophysical Observatory, Solar Probe Cup Instrument Scientist, and Kelly Korreck, Smithsonian Astrophysical Observatory, Science Operations Lead for SWEAP Instrument Suite aboard Parker Solar Probe

In July 2018, NASA will launch a satellite 60 years in the making. The hottest mission under the Sun will visit - the Sun! It is an extreme mission - the fastest human-made object that will travel closest to the Sun at the hottest operating temperatures in history. Learn what went into building this satellite with Dr. Kelly Korreck, who will describe the strange Sun behavior that this mission aims to explain, and Dr. Tony Case, who will discuss the bravest instrument on board that peeks around the spacecraft's protective sun shade: the Solar Probe Cup.

           

              

     

Plus (ongoing):        

          

Wednesdays:

Boston University

Boston, MA.
Open Night at Coit Observatory most Wednesdays 8:30 PM - 9:30 PM. 

617-353-2630
http://www.bu.edu/astronomy/events/public-open-night-at-the-observatory/  

    

 

Thursdays (every third Thursday of the month, 8:30 - 10:30 PM)

CfA Public Observatory Night

Harvard-Smithsonian Center for Astrophysics

60 Garden St.

Cambridge, MA 02138

https://www.cfa.harvard.edu/publicevents

    

    

Fridays:

Astronomy After Hours (starting April 13; 8:00 PM - 10:00 PM)

Guilliland Observatory

Museum of Science

Boston, MA

https://www.mos.org/public-events/astronomy-after-hours

Did you know that the Museum offers our starry-eyed public free evenings full of astronomy-themed fun? Join us, weather-permitting*, at the Gilliland Observatory on the roof of the Museum’s parking garage. On clear nights, you can view stars, planets, the Moon, and other astronomical phenomena. On cloudy nights, tour the inside of our Observatory and participate in a variety of hands-on astronomy and space science activities with Museum staff.

In 2018, this seasonal program will run on Friday nights from April 13 – October 26 and Thursday nights from July 5 – August 30. Hours vary as sunset times shift throughout the season.

  • Fridays, April 13 – 27: 8:00-10:00

  • Fridays in May and June: 8:30-10:30

  • Thursdays and Fridays in July and August: 8:30-10:30

  • Fridays in September and October: time TBD

*On rainy nights and nights when there are chances of thunderstorms, we’ll offer a variety of astronomy and space and earth science activities in the Suit/Cabot Laboratory, located in the Red Wing, Lower Level.

For more details, and to find out which location Astronomy After Hours will be running on a scheduled evening, call our hotline at 617-589-0267. We update with the evening’s plans by 5:30 pm on the day of the program.

Please be aware that throughput in the Observatory is limited. During the summer when we are the busiest, please plan to arrive no later than half an hour before the end of the program to ensure a place in line. Visitors arriving less than a half-hr before close may participate in other astronomy-themed activities but will be admitted to the observatory only as time allows.

       

                

     

Current Night Sky: April 2018

                                  

                                                 

            Phases of the Moon:

  

Last Quarter Moon

April 8

3:18 AM EDT

New Moon

April 15

9:57 PM EDT

First Quarter Moon

April 22

5:46 PM EDT

Full Moon

April 29

8:58 PM EDT

               

Planet Visibility:

    

In Evening (after sunset):

    Venus, in W

         

At Midnight:

    Jupiter, in SE   

                     

 In Morning (before sunrise):

    Jupiter, in S

    Saturn, in S 

    Mars, in S

    Neptune, in E

    Mercury, in E 

                    

        

Comets:

    

    •     There are no comets brighter than magnitude 8 visible this month.
  •          

Meteors:

     

  •     The Lyrid meteors are active during the last two weeks of the month, with a peak on April 22. The Moon will not be a factor, so this should be an excellent display..         
  •       
                     

                                                                   

                 

  

               

  In the predawn sky of April 7, the waning gibbous Moon joins Saturn (appearing here to its immediate lower left) and

Mars (to lower left of Saturn) to form a striking trio. (April 7, 2018, 5:35 AM EDT: one half hour before sunrise).

             

            

  

                     

The annual Lyrid meteor shower peaks on the night of April 22nd. After the First Quarter Moon sets around 2 AM, even some of the fainter meteors may be visible. Though the shower’s radiant – the apparent direction the meteors come from - lies in Lyra, the meteors can appear just about anywhere.

Under dark skies, you can expect to see about 15 - 20 meteors per hour. (April 22, 2018, 10:00 PM EDT).

                                        
      

The Copernican Principle

                        

For countless millennia and across numerous cultures, humans considered themselves to be at the center of the universe. It was a logical enough assumption; after all, the Sun, Moon, planets, and stars seemed to revolve around us. It was not until the wrenching ideas and observations of Copernicus, Galileo, and Kepler that it came to be accepted that objects in our Solar System, rather than revolving around Earth, in fact revolve around the Sun. We began to see that there was nothing special about us or our planet. This was the first intimation of what would come to be called the “Copernican Principle”; it was an early hint that we do not occupy a privileged position in the cosmos. In the image below, taken by the Voyager 1 spacecraft from 4 billion miles away, Earth appears as a “pale blue dot”, less than a pixel wide.

  

        

Galileo’s telescope revealed that the Milky Way is composed of numerous stars. In 1785, William Herschel performed careful counts while studying the distribution of stars in the sky, and came to the conclusion that the Solar System was at the center of the galaxy. Later, Harlow Shapley mapped the distribution of globular clusters, and determined that our Solar System actually lay about 30,000 light-years from the center. We were not even at the center of our galaxy.

            

 

Even so, there remained disquieting observations of the so-called “spiral nebulae”; it was unclear whether they were smaller systems within our galaxy or “island universes” that were as large as the Milky Way itself. In 1923, Edwin Hubble found a way to determine the distance to the Andromeda Galaxy, and determined that it was in fact millions of light-years away. Every other galaxy was even more distant, and our “island universe” was just one of hundreds of billions. It was again a humbling reminder that we do not occupy a privileged position in the universe.

       

It is hard to imagine how this theme could continue. Nevertheless, in the 20th century, observations of galactic clusters and rotation curves of galaxies revealed that most of the material in the universe takes the form of “dark matter” – invisible to our senses and undetectable by our instruments. And studies of the distances and recession velocities of distant supernovae have led to the conclusion that an even larger component of the universe shows up as mysterious “dark energy”. Taken together, dark matter and dark energy comprise 96% of the universe. Ordinary matter, including the atoms of which we are composed, makes up the remaining 4%.

 

 

            

Far from being the center of the universe, we are not even made up of the stuff that comprises most of the cosmos! We can only wonder what Copernicus would have thought of that.           

                                           
   
                                                                        Major Astronomical Events: April / May 2018
     
    

April / May 2018

    

Apr. 1

Sun.

2:00 PM EDT

Mercury @ inferior conjunction

Apr. 2

Mon.

8:00 AM EDT

Mars 1.3° N of Saturn

Apr. 3

Tue.

10:00 AM EDT

Moon 4° N of Jupiter

Apr. 4

Wed.

10:00 PM EDT

Moon 9° N  of Antares

Apr. 7

Sat.

9:00 AM EDT

Moon 1.9° N of Saturn

Apr. 7

Sat.

12:00 PM EDT

Moon, Mars, and Saturn within circle 3.46° across

Apr. 7

Sat.

2:00 PM EDT

Moon 3° N of Mars

Apr. 8

Sun.

1:31 AM EDT

Moon @ apogee (404,143 km / 251,123 mi)

Apr. 8

Sun.

3:20 AM EDT

Last Quarter Moon

Apr. 12

Thur.

All day

Yuri's Night

Apr. 12

Thur.

7:00 PM EDT

Moon 1.9° S of Neptune

Apr. 14

Sat.

5:00 AM EDT

Moon 4° S of Mercury

Apr. 15

Sun.

9:57 PM EDT

New Moon

Apr. 17

Tue.

7:00 AM EDT

Saturn @ aphelion (1.5 billion km / 936 million miles / 10.07 AU)

Apr. 17

Tue.

3:00 PM EDT

Moon 5° S of Venus

Apr. 18

Wed.

9:00 AM EDT

Moon 8.8° SSE of Pleiades

Apr. 18

Wed.

10:00 AM EDT

Uranus @ solar conjunction

Apr. 18

Mon.

6:32 PM EDT

Launch of TESS (Transiting Exoplanet Survey Satellite)

Apr. 19

Thur.

12:00 AM EDT

Sun enters Aries

Apr. 19

Thur.

1:00 AM EDT

Moon 1.1° N of Aldebaran

Apr. 20

Fri.

10:41 AM EDT

Moon @ perigee (368,714 km / 229,108 mi)

Apr. 20

Fri.

3:00 PM EDT

Moon 4° S of M35 cluster

Apr. 21

Sat.

All day

Astronomy Day (spring)

Apr. 22

Sun.

All day

Earth Day

Apr. 22

Sun.

2:00 PM EDT

Lyrid meteors peak (very favorable)

Apr. 22

Sun.

5:46 PM EDT

First Quarter Moon

Apr. 23

Mon.

2:00 AM EDT

Moon 1.6° S of Beehive Cluster

Apr. 24

Tue.

4:00 PM EDT

Moon 1.2° N of Regulus

Apr. 24

Tue.

8:00 PM EDT

Venus 3.5° SSE of Pleiades

Apr. 28

Sat.

8:00 AM EDT

Ceres @ perihelion (382.9 million km / 237.9 million mi / 2.5595 AU)

Apr. 28

Sat.

4:00 PM EDT

Moon 7° NNE of Spica

Apr. 29

Sun.

2:00 PM EDT

Mercury @ greatest western elongation (27°); morning apparition

Apr. 29

Sun.

8:58 PM EDT

Full Moon ("Full Pink Moon")

Apr. 30

Mon.

1:00 PM EDT

Moon 4° N of Jupiter

May 2

Wed. 7:00 AM EDT Moon 9° N of Antares

May 3

Thur. 1:00 PM EDT Venus 7° N of Aldebaran

May 4

Fri.

4:00 PM EDT

Moon 1.7° N of Saturn

May 5

Sat.

3:00 AM EDT

Eta Aquariid meteors peak. (Poor.)

May 5

Sat.

7:05 AM EDT - 9:05 AM EDT

Launch of Insight Mars Lander

May 5

Sat.

8:35 PM EDT

Moon @ apogee (404,457 km / 251,318 mi)

May 6

Sun.

3:00 AM EDT

Moon 3° N of Mars

May 7

Mon.

10:09 PM EDT

Last Quarter Moon

May 8

Tue.

9:00 PM EDT

Jupiter @ opposition

May 10

Thur.

5:00 AM EDT

Moon 2° S of Neptune

May 10

Thur. 8:00 AM EDT Jupiter @ closest approach (4.400 AU / 658 million km / 409 million mi)

May 12

Sat. 5:00 PM EDT Mercury 2° S of Uranus

May 13

Sun.

11:00 AM EDT

Moon 5° S of Uranus

May 13

Sun.

1:00 PM EDT

Moon 2° S of Mercury

May 14

Mon. 3:00 AM EDT Sun enters Taurus

May 15

Tue.

7:48 AM EDT

New Moon

May 17

Thur.

2:00 PM EDT

Moon 5° S of Venus

May 17

Thur.

5:05 PM EDT

Moon @ perigee (363,776 km / 226,040 mi)

May 21

Mon.

11:49 PM EDT

First Quarter Moon

May 23

Wed.

     

Fall Equinox, N. Hemisphere of Mars

May 24

Thur.

1:41 AM EDT (SCET)

Juno Jupiter orbiter Perijove #13

May 27

Sun.

2:00 PM EDT

Moon 4° N of Jupiter

May 29

Tue.

10:20  AM EDT

Full Moon ("Full Flower Moon")

May 29

Tue. 3:00 PM EDT Moon 9° N  of Antares

May 31

Thur.

9:00 PM EDT

Moon 1.6° N of Saturn

May 31

Thur. 9:47 AM EDT Moon 1.9° S of Vesta

   


 

An Overview of Major Astronomical Events in 2018
 

2018

Jan. 1

Mon.

3:00 PM EST

Mercury @ greatest elongation west (23°)

Jan. 3

Wed.

12:35 AM EST

Earth @ perihelion (0.98328 AU / 147,097,233 km / 91,401,983 mi)

Jan. 3

Wed.

7:14 AM EST

Latest sunrise of year (7:13:48 AM)

Jan. 3

Wed.

4:00 PM EST

Quadrantid meteors peak. (Poor.)

Jan. 8

Mon.

6:00 PM EST

Venus @ superior conjunction

Jan. 19

Fri.

4:42 AM EST - 4:56 AM EST

Double shadow transit on Jupiter (Europa, Ganymede)

Jan. 31

Wed.

5:51 AM EST - 6:56 AM EST

Total Lunar Eclipse (partial in Boston)

Jan. 31

Wed.

11:33 AM EST

Ceres @ opposition

Feb. 7

Wed.

8:53 AM EST (SCET)

Juno Jupiter orbiter Perijove #11

Feb. 17

Sat.

12:00 AM EST

Mercury @ superior conjunction

Mar. 4

Sun.

9:00 AM EST

Neptune @ superior conjunction

Mar. 11

Sun.

2:00 AM EST / 3:00 AM EDT

Daylight Saving Time begins

Mar. 15

Thur.

10:00 AM EDT

Mercury @ greatest elongation east (18°)

Mar. 17

Sat.

6:53 AM EDT - 6:53 PM EDT

Equilux (day and night of equal length)

Mar. 20

Tue.

12:15 PM EDT

March Equinox

Mar. 28

Wed.

8:30 PM EST

Venus 4' from Uranus

Mar. 31

Sat.

    

Deadline for Google Lunar X Prize

Apr. 1

Sun.

5:47 AM EDT (SCET)

Juno Jupiter orbiter Perijove #12

Apr. 1

Sun.

7:00 AM EDT

Mercury @ inferior conjunction

Apr. 16 Mon.  

Launch of TESS (Transiting Exoplanet Survey Satellite)

Apr. 18

Wed.

10:00 AM EDT

Uranus @ superior conjunction

Apr. 21

Sat.

All day

Astronomy Day (Spring)

Apr. 29

Sun.

11:06 AM EDT

Mercury @ greatest elongation west (27°)

May 5

Sat.

   

InSight Mars lander launched

May 5

Sat.

3:00 AM EDT

Eta Aquariid meteors peak. (Good.)

May 8

Tue.

9:00 PM EDT

Jupiter @ opposition

May 24

Thur.

1:41 AM EDT (SCET)

Juno Jupiter orbiter Perijove #13

May 23

Wed.

     

Fall Equinox, N. Hemisphere of Mars

June 1

Fri.

     

Hayabusa-2 orbital insertion around asteroid (162173) Ryugu

June 4 Mon.   New Horizons wakes from hiberation prior to MU69 encounter

June 5

Fri.

3:00 PM EDT

Mercury @ superior conjunction

June 14

Thur.

5:07 AM EDT

Earliest sunrise of year (5:07:00 AM)

June 19

Tue.

4:00 PM EDT

Vesta @ opposition

June 21

Thur.

6:07 AM EDT

June (Summer) Solstice

June 26

Tue.

8:25 PM EDT

Latest sunset of year (8:25:22 PM)

June 27

Wed.

9:00 AM EDT

Saturn @ opposition

July 5

Thur.

12:46 AM EDT - 3:05 AM EDT

Saturn occults TYC6277-323-1 (mag. 8.8)

July 6

Fri.

12:46 PM EDT

Earth @ aphelion

July 12

Thur.

12:00 AM EDT

Mercury @ greatest elongation east (26°)

July 12

Thur.

6:00 AM EDT

Pluto @ opposition

July 16

Mon.

1:19 AM EDT (SCET)

Juno Jupiter orbiter Perijove #14 (End of Primary Mission)

July 27

Fri.

1:00 AM EDT

Mars @ opposition

July 31

Tue.

   

Parker Solar Probe launched

Jul. 31

Tue.

4:00 AM EDT

Mars @ closest approach (0.385 AU / 57,595,192 km / 35,787,993 mi)

Aug.

    

    

SpaceX Dragon 2 launched with human crew to ISS

Aug. 8

Wed.

3:00 PM EDT

Mercury @ inferior conjunction

Aug. 12

Sun.

9:00 PM EDT

Perseid meteors peak. (Very good.)

Aug. 13 Mon.   New Horizons switches to 3-axis stabilized mode

Aug. 15

Wed.

1:09 AM EDT

Venus @ dichotomy

Aug. 16 Thur.   New Horizons begins Approach Phase

Aug. 16

Thur.

8:06 PM EDT - 10:12 PM EDT

Double shadow transit on Jupiter (Io, Europa)

Aug. 17

Fri.

   

OSIRIS-REx orbital insertion around asteroid 101955 Bennu

Aug. 17

Fri.

3:58 PM EDT

Venus @ greatest elongation east (46°)

Aug. 21 Tue.   New Horizons attempts first imaging of MU69 target

Aug. 26

Sun.

5:58 AM EDT

Mercury @ greatest elongation west (18°)

Sept. 6

Thur.

9:14 PM EDT (SCET)

Juno Jupiter orbiter Perijove #15 (beginning of Extended Mission)

Sept. 7

Fri.

2:00 PM EDT

Neptune @ opposition

Sept. 16

Sun.

1:00 AM EDT

Mars @ perihelion

Sept. 20

Thur.

3:00 PM EDT

Mercury @ superior conjunction

Sept. 21

Fri.

6:00 AM EDT

Venus @ greatest brilliancy (mag. - 4.8)

Sept. 22

Sat.

9:54 PM EDT

September (Fall) Equinox

Sept. 25

Tue.

6:35 AM EDT / 6:36 PM EDT

Equilux (day and night of equal length)

Sept. 25

Tue.

12:17 AM EDT

Venus @ greatest brilliancy (- 4.6)

Sept. 28

Fri.

   

Parker Solar Probe Venus flyby #1

Oct.

   

   

Solar Orbiter ((ESA mission) launched

Oct. 3 Wed.   New Horizons Trajectory Correction Maneuver (?)

Oct. 5

Fri.

   

BepiColombo Mercury orbiter launched

Oct. 13

Sat.

All day

Astronomy Day (Fall)

Oct. 17

Wed.

   

Winter solstice, N. Hemisphere of Mars

Oct. 21

Sun.

2:00 PM EDT

Orionid meteors peak. (Poor.)

Oct. 23

Tue.

9:00 PM EDT

Uranus @ opposition

Oct. 26

Fri.

10:11 AM EDT

Venus @ inferior conjunction

Oct. 29

Mon.

5:08 PM EDT (SCET)

Juno Jupiter orbiter Perijove #16

Nov. 1

Thur.

   

Parker Solar Probe perihelion #1

Nov. 4

Sun.

1:00 AM EST / 2:00 AM EDT

Daylight Saving Time ends

Nov. 6

Tue.

9:59 AM EST

Mercury @ greatest elongation east (23°)

Nov. 17

Sat.

6:00 PM EDT

Juno @ opposition

Nov. 17

Sat.

7:00 PM EST

Leonid meteors peak. (Poor.)

Nov. 20 Tue.   New Horizons Trajectory Correction Maneuver (?)

Nov. 26

Mon.

   

InSight lands in Elysium Planitia

Nov. 26

Mon.

6:00 PM EST

Jupiter @ superior conjunction

Nov. 26

Mon.

9:00 PM EST

Mercury @ superior conjunction

Dec.

   

   

Boeing CST-100 Starliner launched with human crew to ISS

Dec. 1

Sat.

8:00 PM EDT

Venus @ greatest brilliancy (mag. - 4.9)

Dec. 6

Thur.

4:11 PM EST

Earliest sunset of year (4:11:48 PM EST)

Dec. 12

Wed.

6:33 PM EST

Comet 46P/Wirtanen @ perihelion (157.9 million km / 98.1 million mi)

Dec. 14

Fri.

8:00 AM EST

Geminid meteors peak. (Poor.)

Dec. 15

Sat.

7:00 AM EST

Mercury @ greatest elongation west (18°)

Dec. 16

Sun.

9:56 AM EST

Comet 46P/Wirtanen closest (11.5 million km / 7.1 million mi / 30 L.D.)

Dec. 21

Fri.

6:58 AM EST - 7:12 AM EST

Venus occults HIP72373 (mag. 5.9) (sunrise: 7:10 AM)

Dec. 21

Fri.

12:02 PM EST (SCET)

Juno Jupiter orbiter Perijove #17

Dec. 21

Fri.

5:22 PM EST

December (Winter) Solstice

Dec. 22

Sat.

4:00 PM EST

Ursid meteors peak (poor)

Dec. 25 Tue.   New Horizons begins Core Phase

 

     


   

    Supernova Style Science News  with Ms. Julie Seven Sage

    


          

April 15, 2018 - 9:00 PM EDT