Astronomical outlook for the week

Weather
stars_1551652697948.jpeg

Highlights

  • May 18th, blue flower moon. This is a seasonal blue moon. There are two definitions for “blue moon”.

monthly blue moon

Second full moon within a calendar month. Occurs every 2.41 years on average.
Last occurred March 31, 2019, next occurs Halloween 2020

seasonal blue moon

Third full moon of a season with four full moons. Occurs every 2.68 years on average.
last occurred May 21, 2016, next occurs August 8, 2021


At least during the period checked between 1900 and 3000, I’m not finding any full moons that are both monthly and seasonal between 1900 and 3000, mostly because seasonal full moons occur between the 15th and 25th of the month (most often on the 20th) and monthly full moons can only occur on the 30th or 31st (for calendrical reasons). read more on this

  • Early this week, stragglers from the Eta Aquariid meteor shower may be visible before sunrise.
  • Sat May 18 17:11:19: full moon

On This Day

  • May 5, 2018, InSight launched from Vandenberg AFB in California to peer inside Mars, it has already detected Marsquakes.

 

Near Earth Objects (NEO)

lunar distance (LD) is the mean distance to the moon ~239k miles. Anything within 1 LD is newsworthy. For more information see NASA’s Center for Near Earth Object Studies

This week

object

close approach date

uncertainty

LD

million
miles

2019 JR5

2019-05-13 11:15Z

< 1 sec

11.1

~3

2019 JK3

2019-05-13 21:59Z

~1 hour

3.1

<1

2019 JW5

2019-05-13 23:08Z

~1 hour

2.3

~1

2019 JO3

2019-05-14 15:02Z

~1 hour

18.4

~4.55

2019 JN2

2019-05-15 02:15Z

< 1 sec

7.0

~2

2019 JN5

2019-05-16 00:05Z

< 1 sec

4.4

~1

2019 JG1

2019-05-17 01:55Z

< 1 sec

5.6

~1.55

2012 KT12

2019-05-17 14:41Z

< 1 sec

4.1

~1

2019 GT1

2019-05-17 23:38Z

< 1 sec

6.1

~1.55

2019 JR1

2019-05-18 17:46Z

< 1 sec

16.1

<4

2019 JB1

2019-05-20 03:23Z

~1 hour

16.7

~4

2019 JL3

2019-05-20 07:35Z

~1 hour

2.5

~1

2015 KQ18

2019-05-25 14:23Z

~1 hour

10.7

~3

66391

2019-05-25 23:05Z

< 1 sec

13.5

3+

Closest

within

object

close approach date

uncertainty

lunar distances

million
miles

~14 days

2019 JW5

2019-05-13 23:08Z

~1 hour

2.3

~1

~1 year

2019 JW5

2019-05-13 23:08Z

~1 hour

2.3

~1

~100 years

2010 RF12

2095-09-06 00:03Z

~4.55 hours

0.1

~15,290.55 miles

Planet visibility

body (phase)

rise

transit (alt)

set

constellation

Mercury (94%)

05:38:26

12:34:23 (64??)

19:32:00

Aries

Venus (90%)

05:00:38

11:35:09 (59??)

18:10:31

Pisces

Moon (64%)

14:29:17

21:16:13 (57??)

03:19:10

Leo

Mars

08:07:07

15:42:02 (74??)

23:18:00

Taurus

Saturn

00:34:16

05:18:12 (28??)

10:02:08

Sagittarius

Jupiter

22:39:56

03:19:14 (27??)

07:58:32

Ophiuchus

Sample rise/set times for 05/13/19

Satellite Passes

This information is best used to identify passes worth sharing or skipping. Those nearest overhead are closest, brightest, and longest. Check dates and times for each pass before your share.

International Space Station (ISS)

  • poor pass begins Tue 2019-05-14 04:57:30 EDT from the NNW (327°) reaches 24°, lasts 5 minutes
  • good pass begins Thu 2019-05-16 04:52:04 EDT from the NW (316°) reaches 46°, lasts 6 minutes
  • outstanding pass begins Sat 2019-05-18 04:46:48 EDT from the WNW (303°) reaches 70°, lasts 6 minutes
  • fair pass begins Sat 2019-05-18 21:27:13 EDT from the SSW (211°) reaches 44°, lasts 6 minutes
  • poor pass begins Mon 2019-05-20 04:41:55 EDT from the WNW (284°) reaches 26°, lasts 5 minutes
  • outstanding pass begins Mon 2019-05-20 21:21:48 EDT from the WSW (241°) reaches 69°, lasts 6 minutes
  • poor pass begins Tue 2019-05-21 22:08:21 EDT from the WNW (284°) reaches 22°, lasts 5 minutes
  • fair pass begins Wed 2019-05-22 21:16:57 EDT from the W (267°) reaches 31°, lasts 6 minutes

Atmospheric drag and other factors can and does cause orbits to change. See the European Space Agency supported Heavens Above for the latest pass predictions. Satellite pass gradings are based on altitude reached and duration of the pass. Higher altitude passes are closer to the observer and generally brighter as a result. Satellites other than ISS are much more difficult to spot.

Moon Phases

date

phase

Sat 2019-05-18 17:11:19

full

Sun 2019-05-26 12:33:33

last quarter

Mon 2019-06-03 06:01:55

new

Mon 2019-06-10 01:59:16

first quarter

Sun

Sunrise/set

Date

Rise

Solar noon (alt)

Set

sunlight

Mon 2019-05-13

05:59

13:10 (67.96??)

20:21

14 hrs 21 min

Tue 2019-05-14

05:58

13:10 (68.20??)

20:22

14 hrs 23 min

Wed 2019-05-15

05:57

13:10 (68.44??)

20:23

14 hrs 25 min

Thu 2019-05-16

05:57

13:10 (68.67??)

20:24

14 hrs 27 min

Fri 2019-05-17

05:56

13:10 (68.89??)

20:25

14 hrs 29 min

Sat 2019-05-18

05:55

13:10 (69.12??)

20:26

14 hrs 31 min

Sun 2019-05-19

05:54

13:10 (69.33??)

20:27

14 hrs 33 min

Mon 2019-05-20

05:53

13:10 (69.54??)

20:28

14 hrs 34 min

Tue 2019-05-21

05:52

13:10 (69.75??)

20:29

14 hrs 36 min

Wed 2019-05-22

05:52

13:10 (69.94??)

20:30

14 hrs 38 min

  • gained 0:16:17 (hh:mm:ss) of daylight over this period
  • daylight (HH:MM): 14:29
  • mean: sunrise 05:56 sunset 20:26
  • max: sun angle 69.94??

Twilight

date

rise

set

Mon 2019-05-13

04:06

22:12

Tue 2019-05-14

04:05

22:14

Wed 2019-05-15

04:03

22:15

Thu 2019-05-16

04:02

22:17

Fri 2019-05-17

04:00

22:18

Sat 2019-05-18

03:59

22:20

Sun 2019-05-19

03:57

22:21

Mon 2019-05-20

03:56

22:23

Tue 2019-05-21

03:55

22:24

Wed 2019-05-22

03:53

22:26

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