RFO

What's Up in the Night Sky

Here's a month-by-month listing of astronomical predictions for the year, compiled by
Jack Welch, RFO astronomy instructor.

 

Abbreviations

Astr Twi/AT -Astronomical Twilight
Cal - Callisto
Civ Twi/CT - Civil Twilight
Cr - Crescent
Disap - Disappear
Dbl Tr - Double Tansit
E - End/Exit
Ec/Ecl - Eclipse
EcD - Eclipse disappearance
EcR - Eclipse reappearance
Eur - Europa
Ex - Exit
Gan - Ganymede
Gr El - Greatest Elongation
Jup - Jupiter
Lun - Lunar
Max - Maximum
Mer - Mercury
Min - Minimum
Mn - Moon
Naut Twi/NT - Nautical Twilight
Nr - Near
Occ - Occultation
OcD - Occultation disappearance
OcR - Occultation reapparance
Opp - Opposition
Pen - Penumbral
Reap - Reappear
Qtr - Quarter
Sat - Saturn /Satellite
Sh - Shadow
S/St - Start
Stat - Stationary
Tot - Total
Tr - Transit
V Nr - Very Near
Ven - Venus
Zod Lt - Zodiacal Light

 

Observing

Upcoming Observing Highlights

August 2017
  • Wednesday, 8/2/2017 - Mn vnr Sat - Time: 23:00
    • -
  • Thursday, 8/3/2017 - Ura stat - Time: 02:00
    • Uranus begins retrograde motion in Pisces.
  • Monday, 8/7/2017 - "Sturgeon" Moon - Time: 11:00
    • -
  • Saturday, 8/12/2017 - Perseids Peak - Time: 12:00
    • This is a very unfavorable year for Perseid meteor viewing with a gibbous moon during morning hours and the peak predicted during daylight hours locally.
  • Monday, 8/14/2017 - Last Qtr - Time: 18:00
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  • Friday, 8/18/2017 - CrMn nr Ven - Time: 05:00
    • -
  • Saturday, 8/19/2017 - CrMn nr Ven - Time: 05:00
    • -
  • Monday, 8/21/2017 - Solar Eclipse - Time: 09:00
    • An 82% partial solar eclipse occurs from 9:01 to 11:37am with the eclipse maximum at 10:15. These values are calculated for the RFO site (using Occult4) and differ as distance from RFO increases. WARNING: Use approved safe viewing methods to observe the eclipse to avoid eye damage or blindness. A total solar eclipse occurs for those along a path that runs across the U.S. through or very near Salem OR, St. Louis MO, Nashville TN, and Charleston SC.
  • Monday, 8/21/2017 - New Moon - Time: 11:30
    • -
  • Thursday, 8/24/2017 - Cr Mn nr Jup - Time: 20:30
    • -
  • Friday, 8/25/2017 - Sat stat - Time: 08:00
    • Saturn ends retrograde motion in Ophiuchus.
  • Tuesday, 8/29/2017 - 1st Qtr - Time: 01:00
    • -
  • Tuesday, 8/29/2017 - Mn nr Sat - Time: 21:30
    • -

September 2017
  • Monday, 9/4/2017 - Nep opp - Time: 22:00
    • -
  • Wednesday, 9/6/2017 - "Harvest" Moon - Time: 00:30
    • -
  • Tuesday, 9/12/2017 - Last Qtr - Time: 23:30
    • -
  • Tuesday, 9/19/2017 - Ura Opp - Time: 10:00
    • -
  • Tuesday, 9/19/2017 - New Moon - Time: 22:30
    • -
  • Friday, 9/22/2017 - Autumnal Equinox - Time: 13:00
    • The autumnal equinox occurs at 1:02pm.
  • Wednesday, 9/27/2017 - 1st Qtr - Time: 20:00
    • -

October 2017
  • Thursday, 10/5/2017 - "Hunter's" Moon - Time: 11:30
  • Thursday, 10/12/2017 - Last Qtr - Time: 05:30
    • -
  • Thursday, 10/19/2017 - New Moon - Time: 12:00
    • -
  • Saturday, 10/21/2017 - Orionids Peak - Time: 04:00
    • Conditions are very favorable for the Orionid Meteor Shower. Rates of about 20 meteors per hour are expected at the peak and off-peak outbursts are possible.
  • Friday, 10/27/2017 - 1st Qtr - Time: 15:30
    • -

November 2017
  • Friday, 11/3/2017 - "Beaver" Moon - Time: 10:30
  • Sunday, 11/5/2017 - DST Ends - Time: 02:00
    • -
  • Friday, 11/10/2017 - Last Qtr - Time: 12:30
    • -
  • Friday, 11/17/2017 - Leonids Peak - Time: 08:30
    • While moon conditions are very favorable, meteor activity is expected to be low this year with only about 10 per hour at the peak, which is likely in daylight hours locally. But unexpected activity is always possible. Meteors are viewable after midnight until about 0530.
  • Saturday, 11/18/2017 - New Moon - Time: 03:30
    • -
  • Sunday, 11/26/2017 - 1st Qtr - Time: 09:00
    • -

December 2017
  • Sunday, 12/3/2017 - "Cold" Moon - Time: 08:00
    • -
  • Saturday, 12/9/2017 - Last Qtr - Time: 24:00
    • -
  • Wednesday, 12/13/2017 - Geminids Peak - Time: 22:30
    • Conditions are highly favorable for this strong meteor shower with rates of about 120 meteors per hour lasting for a long time around the peak. The meteors are viewable all night. The crescent moon rises at about 4am on 12/14, interfering somewhat.
  • Sunday, 12/17/2017 - New Moon - Time: 22:30
    • -
  • Thursday, 12/21/2017 - Winter Solstice - Time: 08:30
    • The winter solstice occurs at 8:28am.
  • Friday, 12/22/2017 - Ursids Peak - Time: 07:00
    • Conditions are very favorable for this modest meteor shower with about 10 per hour at peak, though there have been rare outbursts of up to 50. The meteors are viewable all night until after twilight starts around 6am.
  • Tuesday, 12/26/2017 - 1st Qtr - Time: 01:30
    • -

January 2018
  • Monday, 1/1/2018 - "Wolf" Moon - Time: 18:30
    • -
  • Monday, 1/8/2018 - Last Qtr - Time: 14:30
    • -
  • Tuesday, 1/16/2018 - New Moon - Time: 18:30
    • -
  • Wednesday, 1/24/2018 - 1st Qtr - Time: 14:30
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  • Wednesday, 1/31/2018 - "Blue" Moon - Time: 05:30
    • -

February 2018
  • Wednesday, 2/7/2018 - Last Qtr - Time: 08:00
    • -
  • Thursday, 2/15/2018 - New Moon - Time: 13:00
    • -
  • Thursday, 2/22/2018 - 1st Qtr - Time: 24:00
    • First quarter is actually at 12:08am on 2/23.

March 2018
  • Thursday, 3/1/2018 - "Worm" Moon - Time: 17:00
    • -
  • Friday, 3/9/2018 - Last Qtr - Time: 03:30
    • -
  • Saturday, 3/17/2018 - New Moon - Time: 06:00
    • -
  • Saturday, 3/24/2018 - 1st Qtr - Time: 08:30
    • -
  • Saturday, 3/31/2018 - "Blue" Moon - Time: 05:30
    • -

April 2018
  • Sunday, 4/8/2018 - Last Qtr - Time: 00:30
    • -
  • Sunday, 4/15/2018 - New Moon - Time: 19:00
    • -
  • Sunday, 4/22/2018 - 1st Qtr - Time: 14:30
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  • Sunday, 4/29/2018 - "Pink" Moon - Time: 18:00
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May 2018
  • Monday, 5/7/2018 - Last Qtr - Time: 19:00
    • -
  • Tuesday, 5/15/2018 - New Moon - Time: 05:00
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  • Monday, 5/21/2018 - 1st Qtr - Time: 21:00
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  • Tuesday, 5/29/2018 - "Flower" Moon - Time: 07:30
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June 2018
  • Wednesday, 6/6/2018 - Last Qtr - Time: 11:30
    • -
  • Wednesday, 6/13/2018 - New Moon - Time: 12:30
    • -
  • Wednesday, 6/20/2018 - 1st Qtr - Time: 04:00
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  • Wednesday, 6/27/2018 - "Strawberry" Moon - Time: 22:00
    • -

July 2018
  • Friday, 7/6/2018 - Last Qtr - Time: 01:00
    • -
  • Thursday, 7/12/2018 - New Moon - Time: 20:00
    • -
  • Thursday, 7/19/2018 - 1st Qtr - Time: 13:00
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  • Friday, 7/27/2018 - "Buck" Moon - Time: 13:30
    • -

August 2018
  • Saturday, 8/4/2018 - Last Qtr - Time: 11:30
    • -
  • Saturday, 8/11/2018 - New Moon - Time: 03:00
    • -
  • Sunday, 8/12/2018 - Perseids Peak - Time: 19:00
    • The peak of the Perseid Meteor Shower is expected sometime between about 1pm 8/12 and 1am 8/13, but this shower remains active for many days before and after peak. Over 100 meteors per hour are typical at the peak. The Perseids become viewable after about 11pm and are best during the a.m. hours. Conditions are ideal this year with no moonlight interference.
  • Saturday, 8/18/2018 - 1st Qtr - Time: 01:00
    • -
  • Sunday, 8/26/2018 - "Sturgeon" Moon - Time: 05:00
    • -

September 2018
  • Sunday, 9/2/2018 - Last Qtr - Time: 19:30
    • -
  • Sunday, 9/9/2018 - New Moon - Time: 11:00
    • -
  • Sunday, 9/16/2018 - 1st Qtr - Time: 16:00
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  • Monday, 9/24/2018 - "Harvest" Moon - Time: 20:00
    • -

October 2018
  • Tuesday, 10/2/2018 - Last Qtr - Time: 02:30
    • -
  • Monday, 10/8/2018 - New Moon - Time: 21:00
    • -
  • Tuesday, 10/16/2018 - 1st Qtr - Time: 11:00
    • -
  • Wednesday, 10/24/2018 - "Hunter's" Moon - Time: 09:30
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  • Wednesday, 10/31/2018 - Last Qtr - Time: 09:30
    • -

November 2018
  • Wednesday, 11/7/2018 - New Moon - Time: 08:00
    • -
  • Thursday, 11/15/2018 - 1st Qtr - Time: 07:00
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  • Thursday, 11/22/2018 - "Beaver" Moon - Time: 21:30
    • -
  • Thursday, 11/29/2018 - Last Qtr - Time: 16:30
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December 2018
  • Thursday, 12/6/2018 - New Moon - Time: 23:30
    • -
  • Saturday, 12/15/2018 - 1st Qtr - Time: 04:00
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  • Saturday, 12/22/2018 - "Cold" Moon - Time: 10:00
    • -
  • Saturday, 12/29/2018 - Last Qtr - Time: 01:30
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