The following table gives the date and time of important astronomical events for October 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 October 2017 ------ ----- -------------------------------------------- (h:m) Oct 02 02:05 Moon at Descending Node Oct 03 09 Venus at Perihelion Oct 05 18:40 FULL MOON Oct 08 00 Mars at Aphelion Oct 08 21 Mercury at Superior Conjunction Oct 09 05:51 Moon at Perigee: 366858 km Oct 09 18:05 Aldebaran 0.6°S of Moon Oct 12 12:25 LAST QUARTER MOON Oct 13 20:29 Beehive 3.0°N of Moon Oct 14 22:10 Moon at Ascending Node Oct 15 10:54 Regulus 0.2°S of Moon Oct 17 10:04 Mars 1.8°S of Moon Oct 18 00:21 Venus 2.0°S of Moon Oct 19 17 Uranus at Opposition Oct 19 19:12 NEW MOON Oct 21 11 Orionid Meteor Shower Oct 24 11:54 Saturn 3.3°S of Moon Oct 25 02:25 Moon at Apogee: 405151 km Oct 26 18 Jupiter in Conjunction with Sun Oct 27 22:22 FIRST QUARTER MOON Oct 29 06:41 Moon at Descending Node
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)