Bob Moler's Ephemeris Blog

This is Ephemeris for Halloween, Thursday, October 31st. The Sun will rise at 8:20. It’ll be up for 10 hours and 11 minutes, setting at 6:32. The Moon, 1 day before new, will rise at 8:34 tomorrow morning.

The month of November is one of early sunsets, especially with the return to standard time this Sunday, and shortening of daylight hours. Daylight hours will decrease from 10 hours 9 minutes tomorrow the 1st to 9 hours 4 minutes at month’s end. The altitude of the Sun above the southern horizon at local noon, which will drop from 31 degrees to 23½ degrees over the month. Apparent local noon this month will be around 12:30 PM. The sunset time on the 30th will be only 2 minutes later than the earliest sunset of the year. The sunrise time on the 30th will still have 22 minutes and a month to go until the latest sunrise. The Leonid meteor shower will have a peak on the morning of 17th with the Moon a day and a half past full spoiling the show. We are about 9 years away from the next Leonid meteor storm.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). Times will be different for other locations.

Addendum

November Evening Star Chart

The planets and stars are plotted for the 15th at 9 p.m. EST in the evening and 6 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 45 minutes earlier than the current time.

November Morning Star Chart

For a list of constellation names to go with the abbreviations, click here.

• Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
• Follow the arc of the handle of the Big Dipper to the star Arcturus
• The Summer Triangle is in red.
• TauR on the evening star chart can be used as the radiant for the North and South Taurid meteor showers. For dates see NASA Calendar of Planetary Events below
• LeoR on the morning star chart is the radiant of the Leonid meteor shower, which peaks on the morning of the 17th.

Twilight Limits, Nautical and Astronomical

Twilight calendar was generated using Cartes du Ciel (Sky Charts).

See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.

NASA Calendar of Planetary Events

Date         Time     Event
Nov  1  Fr            Venus: 38.2° E
     1  Fr   7:47 am  New Moon
     3  Su   7:26 pm  Moon-Antares:  .1° N
     4  Mo   7:16 pm  Moon-Venus: 3.4° N
     5  Tu   1:26 am  South Taurid Shower: ZHR = 10
     5  Tu  12:18 pm  Moon South Dec.: 28.6° S
     9  Sa  12:56 am  First Quarter
     9  Sa  11:24 pm  Mercury-Antares: 2° N
    10  Su   8:36 pm  Moon-Saturn:  .1° S
    12  Tu  12:43 am  North Taurid Shower: ZHR = 15
    12  Tu  10:59 am  Moon Ascending Node
    14  Th   6:18 am  Moon Perigee: 360100 km
    15  Fr   4:29 pm  Full Moon
    16  Sa   1:59 am  Moon-Pleiades:  .1° S
    16  Sa   2:59 am  Mercury Elongation: 22.5° E
    16  Sa   9:48 pm  Uranus Opposition
    17  Su   7:01 am  Leonid Shower: ZHR = 15
    18  Mo   5:22 am  Moon North Dec.: 28.5° N
    19  Tu   9:07 pm  Moon-Pollux: 1.9° N
    20  We   4:07 pm  Moon-Mars: 2.6° S
    20  We   8:48 pm  Moon-Beehive: 3.1° S
    22  Fr   3:48 pm  Moon-Regulus: 3° S
    22  Fr   8:28 pm  Last Quarter
    25  Mo   4:31 pm  Moon Descending Node
    26  Tu   6:56 am  Moon Apogee: 405300 km
    27  We   6:33 am  Moon-Spica:  .5° S
Dec  1  Su            Venus: 43.6° E

All event times for November 1 & 2 are given for UTC-4 Eastern Daylight Saving Time. For dates after that, times are given for UTC-5 Eastern Standard Time.

Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.

If you go to the above site, you can print out a list like the above for the entire year or calendar pages for your time zone.

Sun and Moon Rising and Setting Times

LU               Ephemeris of Sky Events for Interlochen/TC
November, 2024    Local time zone: EDT
+-----------------------------------------------------------------------+
| DATE |  SUN     SUN  DAYLIGHT|   TWILIGHT*    |MOON  RISE OR    ILLUM |
|      |  RISE    SET    HOURS |  END    START  |PHASE SET** TIME FRACTN|
+=======================================================================+
|Fri  1| 08:21a  06:30p  10:09 | 07:35p  07:16a |New   Set  06:18p    0%|
|Sat  2| 08:22a  06:29p  10:06 | 07:34p  07:17a |      Set  06:43p    2%|
+------+-----------------------+----------------+-----------------------+
| EST  |      Time Change      |                |                       |
|Sun  3| 07:24a  05:27p  10:03 | 06:33p  06:18a |      Set  06:16p    6%|
|Mon  4| 07:25a  05:26p  10:01 | 06:32p  06:20a |      Set  06:58p   11%|
|Tue  5| 07:26a  05:25p  09:58 | 06:30p  06:21a |      Set  07:51p   18%|
|Wed  6| 07:28a  05:24p  09:55 | 06:29p  06:22a |      Set  08:56p   27%|
|Thu  7| 07:29a  05:22p  09:53 | 06:28p  06:23a |      Set  10:08p   37%|
|Fri  8| 07:31a  05:21p  09:50 | 06:27p  06:25a |      Set  11:24p   47%|
|Sat  9| 07:32a  05:20p  09:48 | 06:26p  06:26a |F Qtr Set  12:42a   58%|
+------+-----------------------+----------------+-----------------------+
|Sun 10| 07:33a  05:19p  09:45 | 06:25p  06:27a |      Set  02:00a   69%|
|Mon 11| 07:35a  05:18p  09:43 | 06:24p  06:28a |      Set  03:19a   79%|
|Tue 12| 07:36a  05:17p  09:40 | 06:23p  06:29a |      Set  04:39a   88%|
|Wed 13| 07:37a  05:16p  09:38 | 06:22p  06:31a |      Set  06:03a   95%|
|Thu 14| 07:39a  05:15p  09:35 | 06:22p  06:32a |      Set  07:28a   99%|
|Fri 15| 07:40a  05:14p  09:33 | 06:21p  06:33a |Full  Rise 04:48p  100%|
|Sat 16| 07:41a  05:13p  09:31 | 06:20p  06:34a |      Rise 05:28p   98%|
+------+-----------------------+----------------+-----------------------+
|Sun 17| 07:43a  05:12p  09:29 | 06:19p  06:35a |      Rise 06:19p   94%|
|Mon 18| 07:44a  05:11p  09:26 | 06:18p  06:36a |      Rise 07:22p   87%|
|Tue 19| 07:45a  05:10p  09:24 | 06:18p  06:38a |      Rise 08:32p   79%|
|Wed 20| 07:47a  05:09p  09:22 | 06:17p  06:39a |      Rise 09:45p   70%|
|Thu 21| 07:48a  05:08p  09:20 | 06:16p  06:40a |      Rise 10:56p   60%|
|Fri 22| 07:49a  05:08p  09:18 | 06:16p  06:41a |L Qtr Rise 12:04a   51%|
|Sat 23| 07:50a  05:07p  09:16 | 06:15p  06:42a |      Rise 01:09a   41%|
+------+-----------------------+----------------+-----------------------+
|Sun 24| 07:52a  05:06p  09:14 | 06:15p  06:43a |      Rise 02:12a   32%|
|Mon 25| 07:53a  05:06p  09:12 | 06:14p  06:44a |      Rise 03:15a   24%|
|Tue 26| 07:54a  05:05p  09:11 | 06:14p  06:45a |      Rise 04:18a   16%|
|Wed 27| 07:55a  05:05p  09:09 | 06:14p  06:46a |      Rise 05:23a   10%|
|Thu 28| 07:57a  05:04p  09:07 | 06:13p  06:48a |      Rise 06:30a    5%|
|Fri 29| 07:58a  05:04p  09:05 | 06:13p  06:49a |      Rise 07:39a    2%|
|Sat 30| 07:59a  05:03p  09:04 | 06:13p  06:50a |      Rise 08:47a    0%|
+-----------------------------------------------------------------------+
* Nautical Twilight
** Moonrise or moonset, whichever occurs between sunset and sunrise

Generated using my LookingUp for DOS program.