Astronomical Outlook for the Week

News
Night Sky

Highlights

  • The new moon on September 9 will make it easier to spot 4 planets at once. Shortly after sunset, start with Mars and Saturn as they flank the teapot in Sagittarius in the south. Moving right, Jupiter will be nearly due SW and Venus will be hard to miss low on the WSW horizon. See tweet this below for a graphic.
  • The ISS will be visible mostly in the morning for the next 2-3 weeks.
  • Sun Sep 09 14:01:27: new moon

 

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

2015 FP118

2018-09-03 10:09Z

< 1 sec

12.2

~3

2018 QA

2018-09-03 16:51Z

~2 hours

17.4

4+

2018 QU1

2018-09-11 03:40Z

< 1 sec

10.9

~3

Closest

within

object

close approach date

uncertainty

lunar distances

million
miles

~14 days

2018 QU1

2018-09-11 03:40Z

< 1 sec

10.9

~3

~1 year

2015 EG

2019-03-04 20:52Z

1+ hour

1.2

~0.55

~100 years

2010 RF12

2095-09-06 00:03Z

<2 hours

0.1

~15,290.55 miles

Planet visibility

body (phase)

rise

transit (alt)

set

constellation

Mercury (75%)

05:22:59

12:16:29 (64°)

19:09:05

Leo

Venus (39%)

10:35:44

15:52:25 (36°)

21:11:02

Virgo

Moon (42%)

00:02:41

07:22:44 (68°)

14:48:44

Taurus

Mars

18:04:49

22:34:06 (24°)

02:59:35

Capricornus

Saturn

15:53:23

20:32:22 (27°)

01:15:19

Sagittarius

Jupiter

12:18:25

17:23:16 (33°)

22:31:34

Libra

Sample rise/set times for 09/03/18

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)

  • below trees pass begins Wed 2018-09-05 05:46:40 EDT from the NW (311°) reaches 15°, lasts 3 minutes
  • below trees pass begins Fri 2018-09-07 05:40:00 EDT from the NNW (330°) reaches 12°, lasts 2 minutes
  • below trees pass begins Sat 2018-09-08 06:24:55 EDT from the NNW (339°) reaches 13°, lasts 3 minutes
  • below trees pass begins Sun 2018-09-09 05:32:51 EDT from the NNW (339°) reaches 12°, lasts 2 minutes
  • below trees pass begins Mon 2018-09-10 06:17:01 EDT from the NNW (333°) reaches 18°, lasts 4 minutes
  • poor pass begins Wed 2018-09-12 06:09:05 EDT from the NW (325°) reaches 27°, lasts 5 minutes

Moon Phases

date

phase

Sun 2018-09-02 22:37:23

last quarter

Sun 2018-09-09 14:01:27

new

Sun 2018-09-16 19:14:57

first quarter

Mon 2018-09-24 22:52:24

full

Sun

Sunrise/set

Date

Rise

Solar noon (alt)

Set

sunlight

Mon 2018-09-03

06:43

13:13 (56.90°)

19:42

12 hrs 59 min

Tue 2018-09-04

06:44

13:13 (56.53°)

19:41

12 hrs 56 min

Wed 2018-09-05

06:45

13:12 (56.16°)

19:39

12 hrs 54 min

Thu 2018-09-06

06:46

13:12 (55.79°)

19:37

12 hrs 51 min

Fri 2018-09-07

06:47

13:12 (55.42°)

19:36

12 hrs 49 min

Sat 2018-09-08

06:48

13:11 (55.04°)

19:34

12 hrs 46 min

Sun 2018-09-09

06:49

13:11 (54.67°)

19:33

12 hrs 43 min

Mon 2018-09-10

06:50

13:11 (54.29°)

19:31

12 hrs 41 min

Tue 2018-09-11

06:51

13:10 (53.91°)

19:29

12 hrs 38 min

Wed 2018-09-12

06:52

13:10 (53.52°)

19:28

12 hrs 35 min

  • lost 0:23:29 (hh:mm:ss) of daylight over this period
  • daylight (HH:MM): 12:47
  • mean: sunrise 06:48 sunset 19:35
  • max: sun angle 56.90°

Twilight

date

rise

set

Mon 2018-09-03

05:05

21:21

Tue 2018-09-04

05:06

21:19

Wed 2018-09-05

05:08

21:17

Thu 2018-09-06

05:09

21:15

Fri 2018-09-07

05:10

21:13

Sat 2018-09-08

05:11

21:11

Sun 2018-09-09

05:13

21:09

Mon 2018-09-10

05:14

21:07

Tue 2018-09-11

05:15

21:05

Wed 2018-09-12

05:16

21:04

 

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