The following table gives the date and time of important astronomical events for September 2017.
The time of each event is given in Greenwich Mean Time or GMT (a.k.a. Universal Time or UT). To convert GMT to Eastern Standard Time (EST) just subtract 5 hours. To convert GMT to other time zones, visit Time Zones. Some of the astronomical terms used in the calendar are explained in Definitions.
Date GMT Astronomical Events for September 2017 ------ ----- -------------------------------------------- (h:m) Sep 01 06:08 Venus 1.4°S of Beehive Sep 04 18:41 Moon at Descending Node Sep 05 00 Mercury 3.2° of Mars Sep 05 04 Neptune at Opposition Sep 06 07:03 FULL MOON Sep 10 05:30 Mercury 0.7°S of Regulus Sep 10 21:44 Jupiter 2.9°N of Spica Sep 12 10 Mercury at Greatest Elongation: 17.9°W Sep 12 12:09 Aldebaran 0.4°S of Moon Sep 13 06:25 LAST QUARTER MOON Sep 13 16:04 Moon at Perigee: 369856 km Sep 15 12 Mercury at Perihelion Sep 16 14:50 Beehive 3.1°N of Moon Sep 16 18 Mercury 0.1° of Mars Sep 17 18:28 Moon at Ascending Node Sep 18 00:56 Venus 0.5°N of Moon: Occultation Sep 18 04:32 Regulus 0.1°S of Moon Sep 18 23:22 Mercury 0.0°N of Moon: Occultation Sep 19 21:30 Venus 0.4°N of Regulus Sep 20 05:30 NEW MOON Sep 22 07:51 Jupiter 3.7°S of Moon Sep 22 20:02 Autumnal Equinox Sep 27 00:09 Saturn 3.5°S of Moon Sep 27 06:49 Moon at Apogee: 404342 km Sep 28 02:54 FIRST QUARTER MOON
As the events above transpire, I will post photographs of some of them at Recent Images.
Astronomical events calendars for complete years and for eight time zones are available through the links below.
|Time Zones||Calendars of Astronomical Events|
|Greenwich Mean Time||2017||2018||2019||2020||2021||2022|
|Atlantic Standard Time||2017||2018||2019||2020||2021||2022|
|Eastern Standard Time||2017||2018||2019||2020||2021||2022|
|Central Standard Time||2017||2018||2019||2020||2021||2022|
|Mountain Standard Time||2017||2018||2019||2020||2021||2022|
|Pacific Standard Time||2017||2018||2019||2020||2021||2022|
|Alaska Standard Time||2017||2018||2019||2020||2021||2022|
|Hawaii Standard Time||2017||2018||2019||2020||2021||2022|
For additional years, see Calendars of Astronomical Events.
The astronomical highlight of 2017 is the Great American Total Solar Eclipse on August 21. This is the first total eclipse visible from the continental USA in 38 years. For complete details on this highly anticipated event, see: 2017 Total Solar Eclipse (EclipseWise.com).
For information on all solar and lunar eclipses this year, see: Eclipses During 2017.
The Calendars of Astronomical Events were all generated by a computer program I wrote (with THINK Pascal running on a Macintosh G4) using Astronomical Algorithms (Jean Meeus).
- More Information
- Sky Events Calendar (AstroPixels.com)
- This Week’s Sky at a Glance (Sky & Telescope)
- Heavens Above
- Cal Sky
- Star Date
- Eclipses During 2017 (EclipseWise.com)
- 2017 Total Solar Eclipse (EclipseWise.com)
- Additional Astronomical Events
- Solstices and Equinoxes: 2001 to 2100 (GMT)
- Perihelion and Aphelion: 2001 to 2100 (GMT)
- Phases of the Moon: 2001 to 2100 (Greenwich Mean Time)
- Full Moon at Perigee (Super Moon): 2001 to 2100 (GMT)
- More Astronomical Data (AstroPixels.com)
- Solar and Lunar Eclipses (EclipseWise.com)