Longmont Astronomical Society

To schedule an event or star party, please send an email to the Coordinator.

Upcoming events

    • July 16, 2020
    • 6:30 PM - 9:00 PM (MDT)
    • Zoom

    Pluto's Planetary Status
    by Hal Levinson

    7:00 PM Zoom virtual meeting for June on Thursday, the 18th; join us.


    July’s presentation is by Dr. Hal Levinson, who spoke to LAS last year about the Lucy Project, studying the Trojan asteroid swarms that preceded and follow along Jupiter’s orbit. This time Dr. Levinson will share his perspective on Pluto’s planetary status.

    A little topical background. Pluto was demoted from planet to dwarf planet in 2006 by the International Astronomical Union [IAU]. When astronomer Mike Brown discovered the Kuiper Belt Object that is now named Eris, it created a dilemma: what defines a planet. Eris was thought to be much like Pluto, and it looked like there would potentially be several if not many more such objects lurking in the neighborhood. If Eris et.al. were accorded planetary status, where would it end? The IAU developed three criteria to be met for an object to be declared a planet: [1] orbit the Sun; [2] be essentially round; and [3] clear the area of other bodies, i.e., be the dominant object. Pluto, alas, only met the first two requirements.

    • July 25, 2020
    • 9:00 PM - 11:00 PM (MDT)
    • Rabbit Mountain
    Register

    Come enjoy the night sky as members of the Longmont Astronomical Society show you the celestial wonders through their telescopes.  This program is family friendly.


    At Rabbit Mountain near Lyons. 

    If you are not a LAS member you need to register with Boulder County Parks & Open Space to guarantee a space. 

    This link contains a map and directions.

    • August 22, 2020
    • 8:30 PM - 10:30 PM (MDT)
    • Rabbit Mountain
    Register

    Come enjoy the night sky as members of the Longmont Astronomical Society show you the celestial wonders through their telescopes.  This program is family friendly.


    At Rabbit Mountain near Lyons. 

    If you are not a LAS member you need to register with Boulder County Parks & Open Space to guarantee a space. 

    This link contains a map and directions.

    • September 19, 2020
    • 7:30 PM - 9:30 PM (MDT)
    • Rabbit Mountain
    Register

    Come enjoy the night sky as members of the Longmont Astronomical Society show you the celestial wonders through their telescopes.  This program is family friendly.


    At Rabbit Mountain near Lyons. 

    If you are not a LAS member you need to register with Boulder County Parks & Open Space to guarantee a space. 

    This link contains a map and directions.

    • October 17, 2020
    • 6:30 PM - 8:30 PM (MDT)
    • Rabbit Mountain
    Register

    Come enjoy the night sky as members of the Longmont Astronomical Society show you the celestial wonders through their telescopes.  This program is family friendly.


    At Rabbit Mountain near Lyons. 

    If you are not a LAS member you need to register with Boulder County Parks & Open Space to guarantee a space. 

    This link contains a map and directions.

    • November 21, 2020
    • 5:30 PM - 7:30 PM (MST)
    • Rabbit Mountain
    Register

    Come enjoy the night sky as members of the Longmont Astronomical Society show you the celestial wonders through their telescopes.  This program is family friendly.


    At Rabbit Mountain near Lyons. 

    If you are not a LAS member you need to register with Boulder County Parks & Open Space to guarantee a space. 

    This link contains a map and directions.

Past events

June 27, 2020 Cancelled: LAS / Boulder County Parks and Open Space Star Party
June 18, 2020 LAS Monthly Meeting via Zoom
May 30, 2020 Cancelled: LAS / Boulder County Parks and Open Space Star Party
May 30, 2020 CANCELLED: Louisville Library Solar Viewing Event
May 21, 2020 LAS Monthly Meeting via Zoom
April 18, 2020 CANCELLED: LAS / Boulder County Parks and Open Space Star Party
March 28, 2020 CANCELLED: LAS / Boulder County Parks and Open Space Star Party
March 27, 2020 CANCELLED: Amazing Astronomy: Evening Astronomy Event at Sandstone Ranch
March 19, 2020 CANCELLED: LAS Monthly Meeting
March 05, 2020 Astronomy On Tap
February 29, 2020 CANCELLED: LAS / Boulder County Parks and Open Space Star Party
February 20, 2020 LAS Monthly Meeting
January 16, 2020 2020 LAS Banquet
November 21, 2019 LAS Monthly Meeting
October 17, 2019 LAS Monthly Meeting
October 05, 2019 LAS / Boulder County Parks and Open Space Star Party
September 19, 2019 LAS Monthly Meeting
September 07, 2019 LAS / Boulder County Parks and Open Space Star Party
August 31, 2019 Members Star Party at Owl Hollow
August 24, 2019 Members Star Party at Owl Hollow
August 10, 2019 LAS / Boulder County Parks and Open Space Star Party
July 18, 2019 LAS Meeting - Steve Albers: Seeing, Transparency, and Light in the Night Sky
July 06, 2019 LAS / Boulder County Parks and Open Space Star Party
June 26, 2019 Rock Mountain Star Stare
June 25, 2019 Astronomy On Tap
June 20, 2019 LAS Meeting - Dr. Ricky Egeland of NCAR
June 08, 2019 LAS / Boulder County Parks and Open Space Star Party
June 01, 2019 Members Star Party at Owl Hollow
June 01, 2019 Louisville Library Solar Viewing Event
May 16, 2019 LAS Meeting - Dr. Hal Levinson - NASA Lucy Mission
May 11, 2019 LAS / Boulder County Parks and Open Space Star Party
May 10, 2019 Night Sky revealed:Evening Astronomy Event at Sandstone Ranch
April 18, 2019 LAS Meeting - Ocean Worlds in the Solar System by Amanda Hendrix
April 13, 2019 LAS / Boulder County Parks and Open Space Star Party
March 21, 2019 LAS Meeting: Astrophotography Excursion to San Pedro de Atacama Celestial Explorations
March 16, 2019 LAS / Boulder County Parks and Open Space Star Party
February 21, 2019 February Meeting

Copyright Longmont Astronomical Society, 2019. All rights reserved.
The Longmont Astronomical Society is a 501(c)3 non-profit organization. P.O.Box 806, Longmont, CO 80502-0806, USA

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