Astronomy News for the Month of September 2026


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 Excerpts from JPL mission updates are provided as a public service as part
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Rocket Report for 09/08/2026 through 09/22/2026
Courtesy of "The Rocketman" Ed W6RDZ
Updated Weekly on Tuesday evenings
prior to the Colorado Astronomy Net

In this Newsletter...


Background screen credits: NGC5775
Imaged March 21/22, 2001
using the 16" Kitt Peak Visitors Center telescope
as part of the Kitt Peak Advanced Observing Program.


"A distant planet now at its best - The solar system’s most distant planet, Neptune, was imaged by Voyager 2 in August 1989. This month, the ice giant reaches opposition in our sky. NASA/JPL, Astronomy Magazine, September 2026, p.28.


The Month At-A-Glance
A calendar displaying the daily astronomical events.


19 day moon

The Moon

Phases

Apogee/Perigee

Moon/Planet Pairs

For reference: The Full Moon subtends an angle of ~0.5°.

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Astronomy Calendar 2026: All Major Celestial Events of the Year

The Planets & Dwarf Planets

Planetary Reports generated by "TheSkyX" software. These reports provide predicted data for the planets for the first of each month for the current year. The rise and set times for the Sun and the Moon for each day of the month as well as meteor shower radiants are also included in the reports. These reports have been optimized for the Denver, Colorado location, however, the times will be approximate for other locations on Earth.

Note: Times are Mountain Time (MDT) unless otherwise noted. Times will vary slightly depending on your location.

Planetary Highlights for September

"Venus is the brightest object in the west after sunset, reaching its greatest illuminated extent this month. Neptune reaches opposition, with Saturn in the same region of sky. Uranus could be visible from dark skies without optical aid; we’ll tell you where to look. Mars is slowly brightening, while Jupiter is ready for observing in the morning sky." Astronomy Magazine, September 2026, p.28.

Mercury

Sets at 7:49 p.m. on the 1st and about 7:29 p.m. by month's end. Mercury is visible in the western sky about 30 minutes after sunset after the first week of September. Mercury moves from the constellation of Leo into Virgo shining at magnitude -0.1 on the 30th.

Venus

Is at greatest brilliancy (magnitude -4.8) on the 18th. Venus sets about 8:59 p.m. on the 1st and about 7:20 p.m. by month's end. Look for Venus to the west about 30 minutes after sunset. Venus is in the constellation of Virgo shining at magnitude -4.8.

Earth

Autumnal equinox occurs at 8:05 P.M. EDT on the 22nd.

Mars

Rises at 1:51 a.m. on the 1st and about 1:21 a.m. by month's end. Look for Mars to the southeast in the morning before sunrise. Mars moves from the constellation of Gemini into Cancer shining at magnitude 1.2.

Jupiter

Rises at 4:21 a.m. on the 1st and about 2:53 a.m. by month's end. Jupiter is visible to the east in the morning sky before sunrise. Jupiter moves from the constellation of Cancer into Leo shining at magnitude -1.8.

Saturn

Rises at 8:56 p.m. on the 1st and about 6:54 p.m. by month's end. Look for Saturn towards the east in the evening sky after sunset. Saturn moves from the constellation of Pisces into Cetus shining at magnitude 0.4.

Uranus

Is stationary on the 10th. Uranus rises at 11:12 p.m. on the 1st and about 9:13 p.m. by month's end. Look for Uranus to the east in the late evening and early morning before sunrise. Uranus is in the constellation Taurus shining at magnitude 5.7.

Neptune

Is at opposition on the 25th. Neptune rises at 8:27 p.m. on the 1st and about 6:27 p.m. by month's end. Neptune is at its best viewing for the year this month. Look for Neptune towards the east in the evening sky after sunset. Neptune is in the constellation of Pisces shining at magnitude 7.7.

Dwarf Planets

Ceres

Rises at 1:24 a.m. on the 1st and about 00:01 a.m. by month's end. Ceres can be spotted low to the south in the morning sky before sunrise. Ceres moves is in constellation of Gemini shining at magnitude 8.8.

Pluto

Rises at 6:03 p.m. on the 1st and about 4:03 p.m. by month's end. Pluto can be spotted to the south just before midnight. Pluto is in the constellation of Capricornus shining at magnitude 15.1.

As always, good luck at spotting Neptune, Ceres and Pluto, a large telescope and dark skies will be needed.

Constellation information provided by Go Astronomy.

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Astronomical Events

Meteor Showers

  • NO MAJOR meteor showers occur in September. There is, however, an elusive glow from the meteoritic debris that fills the inner solar system. It is visible in the east before dawn when there's no Moon. This is the zodiacal light, a cone-shaped glow aligned with the ecliptic. Look for it at least an hour before dawn, reaching up through Leo toward where Jupiter sits.

    With a New Moon Sept. 10, the following seven to 10 days are a good time to view this glow, with the Moon limited to the evening sky. Travel well away from any city; higher altitude also aids viewing this light. Avoid street-light glow from cities to your east.

    While observing the planets in the morning sky, also keep an eye on the sky for sporadic meteors, and possibly a fireball. Random meteors add to the splendor of a night under the stars. There's always something special happening in the sky." Astronomy Magazine, September 2026, p.29.

    Meteor Shower Radiant Report

    For more information about Meteor Showers, visit the Meteor Showers Online web page.

    Meteor Shower Radiant Report

    Meteor Scatter (or Meteor burst communications) - "is a radio propagation mode that exploits the ionized trails of meteors during atmospheric entry to establish brief communications paths between radio stations up to 2,250 kilometres (1,400 mi) apart." Tune your shortwave or your HF amateur radio to 54.310 MHz SSB and see if you can hear any pings. Try other frequencies as well... 6m FT8 digital - 50.313 Mhz & 50.276 Mhz, JP-65 digital mode and the carrier frequencies of the lower VHF bands for TV channels 2, 3 & 4.

    Meteor Rx How-To by Terry Bullett (WØASP)

  • Comets

  • Comet 10/P Temple (Temple 2) is shining around 8th magnitude swinging under and around the constellation of Pisces Austrinus. Comet Temple 2 rises in the late evening and is best after midnight when it is highest in the southern sky.

  • For information, orbital elements and ephemerides on observable comets, visit Observable Comets.

    For more information about Comets, check out Gary Kronk's 6-volume series of books on Cometography.

  • Eclipses

    Solar Eclipses

  • No solar eclipse activity this month.

    Lunar Eclipses

  • No lunar eclipse activity this month.

  • Observational Opportunities

  • Look for Mercury and Venus to the west.
  • Look for Pluto to the south.
  • Look for Neptune and Saturn in the late evening to the southeast.
  • Look for Uranus, Ceres, Mars and Jupiter in the early morning to the southeast.
  • Asteroids

    (From west to east)
    • Melpomene is in the constellation of Sagittarius.
    • Juno is stationary on the 14th in the constellation of Aquila.
    • Metis is at opposition on the 28th in the constellation of Aquarius.
    • Nausikaa is at opposition on the 30th in the constellation of Pisces.
    • Pallas is in the constellation of Cetus.
    • Vesta is in the constellation of Cetus.

    • Information about the Minor Planets can be found at the Minor Planet Observer website.
    Ocultations

    IOTA Logo

    Information on various occultations can be found at the International Occultation Timing Association's (IOTA) web site.








    RECON Logo

    RECON - the Research and Education Collaborative Occultation Network - is a citizen science research project aimed at exploring the outer solar system.

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    Member Meteor Sightings

    In this section I will post meteor, fireball, etc sightings that have been published on the American Meteor Society's web site. I want to make this an active section of the web pages and newsletter and would like to publish the links to member sightings. If you have any published sightings, please provide me with the links and I will post them here for all to enjoy.

    Event ID Date/Time Location Observer Link
    3871-2015 2015-11-13 01:55 MST CO Charles N 3871a
    3587-2015 2015-11-22 17:38 MST CO Kevin S 3587aw
    3829-2015 2015-12-05 18:06 MST CO Burness A 3829a
      986-2020 2020-02-21 22:20 MST CO Lukas S 986
    3716-2020 2020-07-24 23:22 MDT CO Lukas S 3716
    4774-2021 2021-08-13 21:57 MDT UT Lukas S 4774
    7044-2021 2021-10-28 20:37 MDT CO Burness A 249058
    6763-2022 2022-10-06 05:56 CDT OK Mike C 6763
    5300-2023 2023-09-11 22:04 MDT CO Lukas S 5300
    578-2024 2024-01-28 23:05 MST CO Lukas S 578

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