This is the companion Web Site of Bob Moler's Ephemeris radio program, which is broadcast Monday Through Friday on Interlochen Public Radio Stations. Interlochen Public Radio serves northwestern lower Michigan. The first Ephemeris program was broadcast June 1, 1975.
Click on the above link for live streaming audio from IPR. Or download the Interlochen Public Radio app from the Apple App Store or Google Play.
Bob Moler's Ephemeris Blog contains scripts and illustrations for the Ephemeris programs. They are generally released at 12:01 a.m. Eastern Time on the program play date.
NASA/JPL Solar System Ambassador
Contact me at the email address at the bottom of this page to discuss star parties and presentations for schools, scout groups, and non-profit organizations in person or via Zoom.
That being said, opinions expressed on this website are my own and not that of NASA or JPL
Ephemeris Radio Schedule Monday - Friday
WIAA 88.7 FM Caberfae
W234BU 94.7 FM Traverse City
WLNM 89.7 FM Manistee, Ludington
On this site – articles of interest for this month
Planetary Highlights for November 2021 (ET)
Date Time Event Nov 1 Mo Venus: 47° E 1 Mo 8:17 pm Mercury-Spica: 4.1° N 4 Th 4:15 pm New Moon 4 Th 7:13 pm Uranus Opposition 5 Fr 5:23 pm Moon Perigee: 358800 km 5 Fr 10:38 pm Moon Descending Node 8 Mo 12:21 am Moon-Venus: 1.1° S 8 Mo 11:27 am Moon South Dec.: 26.3° S 10 We 9:27 am Moon-Saturn: 4.2° N 11 Th 7:46 am First Quarter 11 Th 12:12 pm Moon-Jupiter: 4.5° N 12 Fr 6:16 am North Taurid Shower: ZHR = 15 17 We 12:33 pm Leonid Shower: ZHR = 15 19 Fr 3:58 am Full Moon 19 Fr 4:04 am Partial Lunar Eclipse 19 Fr 12:59 pm Moon Ascending Node 20 Sa 9:14 pm Moon Apogee: 406300 km 22 Mo 5:43 pm Moon North Dec.: 26.3° N 23 Tu 10:22 pm Moon-Pollux: 2.8° N 24 We 11:32 pm Moon-Beehive: 3.6° S 27 Sa 7:28 am Last Quarter 28 Su 11:35 pm Mercury Superior Solar Conj. Dec 1 We Venus: 41.4° E
All event times are given for UTC-4:00: Eastern Daylight Saving Time.
Events Calendar by Fred Espenak and Sumit Dutta (NASA’s
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.
Note that the site is now kept up for archival purposes. Fred Espenak retired from NASA several years ago and has his own site, AstroPixels, which contain much the same information: http://astropixels.com/almanac/almanac.html. However, he doesn’t adjust for Daylight Saving Time.
An Almost Total Lunar Eclipse, November 19, 2021
Partial eclipse starts: 2:18 am EST (07:18 UT). The “bite of the umbral shadow*” will occur at the top part of the Moon.
Maximum Eclipse: 4:05 am EST (09:05 UT), 97% eclipsed. The tiny piece of the bright part of the Moon will be visible at the 8 o’clock position on the face of the Moon.
Partial eclipse ends: 5:47 am EST (10:47 UT). The shadow will depart at the 4 o’clock position of the face of the Moon.
The duskiness of the Moon deep in the penumbral shadow should appear on the Moon starting and ending about a half hour before and after the partial eclipse.
The positions of the shadow, shown and mentioned, are those seen from Northern Michigan.
* Or dragon or Cookie Monster.
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