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2012 Slow Green Fireball Train in UK: Satellite or Meteor Break-Up?
event September 22, 2012 comment 11 Comments

I hate being dragged into these “modern” reports, since the Tusk specializes about this kind of stuff in the ancient past. But the UK event yesterday was really, really cool and I have posted before on these slow greenish fireballs.

Because of the unusually long duration and slow movement, some people have suggested the possibility of a satellite reentry. For various reasons, this is however very unlikely.

Multiple reports make clear the object was moving from east to west. A report of observers from Bussloo Observatory, the Netherlands, for examples states that the fireball appeared in the north, moving from Perseus  to Bootes, almost horizontally from east to west. Similar reports (e.g. hereand here) come from Ireland.

Almost all non-polar satellites move prograde,  from west to east (or northsouthand v.v. for a polar orbit). An east to west movement would necessitate the object to have a retrograde orbit (meaning that it moves counter to the earth’s direction of rotation). Such objects are extremely rare: they literally amount to only a handful of objects (including the US FIA Radar satellites, and the Israeli Ofeq/Shavit satellites/rb). For this reason, it is extremely unlikely that this fireball was a reentering satellite. — sattrackcam.blogspot.nl

 2012 UK Green Fireball Train, September 21, 2012

 

1913 Great Green Canadian Fireball Train

 

UK Fireball Again

 

Only from the Tusk: Edward Teller and the anomalous nature of Green Fireballs

 

Bad Astronomy fireball green fireballs meteor satellite UK United Kingdom

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  1. The appearance of slow motion is indicative of great altitude orbits: Are these data available for this meteor?

    The green color indicates neutral oxygen: At those great heights, the atmosphere is so thin that, by a quirk of statistical mechanics, the chemicals occur in pure layers, so there is a layer of pure oxygen, existing as neutral molecules.

  2. From Space Daily dot com, more good lunar formation science:

    “Model reconciles Lunar Earth composition with giant impact theory”

    http://www.space-travel.com/reports/New_model_reconciles_the_Moons_Earth_like_composition_with_the_giant_impact_theory_of_formation_999.html

    with some snap shots of the mess:

    http://www.swri.org/press/2012/images/earthmoon.jpg

    Both proto-planets melted in the impact. That’s gotta kill the real estate value, even for the waterfront properties….

    TH

  3. Space Daily dot com with the mother lode for this week….

    “Jupiter: Turmoil from Below, Battering from Above”

    http://www.spacedaily.com/reports/Jupiter_Turmoil_from_Below_Battering_from_Above_999.html

    AND

    “Giant impact scenario may explain the unusual moons of Saturn:”

    http://www.spacedaily.com/reports/Giant_impact_scenario_may_explain_the_unusual_moons_of_Saturn_999.html

    Impact is a “Planetological” process.

    AND

    Keck Observations Bring Weather Of Uranus Into Sharp Focus with high resolution infrared images of the 7th planet from the Sun:

    http://www.spacedaily.com/reports/Keck_Observations_Bring_Weather_Of_Uranus_Into_Sharp_Focus_999.html

    WIth cool imagery

    https://dl.dropbox.com/u/35388386/Uranus_Sromovsky.jpg

    TH

  4. for good astronomy, we could use an observatory at one of the poles of the moon where some water may be present for hydrogen and oxygen. Where does the water come from? Space is such a harsh environment for water that scientists think the lunar polar water must be replenished constantly, because it must be gassing off constantly. No offense.

    Astrium presents results of its study into automatic landing near the Moon’s south pole:

    http://www.space-travel.com/reports/Astrium_presents_results_of_its_study_into_automatic_landing_near_the_Moons_south_pole_999.html

  5. again, Space Daily…

    Whizzing Asteroid Turns Rocket Scientists’ Heads (its whizzing close by so pay attention)

    http://www.spacedaily.com/reports/Whizzing_Asteroid_Turns_Rocket_Scientists_Heads_999.html

    “Confirmed speakers include Dr. Michael F. A’Hearn, the scientist who led NASA’s Deep Impact mission, which launched the first man-made object into the nucleus of a comet, and Dr. Harold Reitsema, a former NASA scientist who is part of the B612 Foundation’s private effort to launch a telescope that will locate and track asteroids that could hit Earth.

    The scientists will talk about why asteroid research is so vital to Earth and the new NASA and private efforts to track them.”

    We need to treat these guys to a nice dinner. My house is available, easy access to the subway, and walkable to Manhattan for some comfortable tourism.

  6. another gem from Phys Org

    “New, high-resolution global ocean circulation models identify trigger for Earth’s last big freeze”

    “Now University of Massachusetts Amherst geoscientist Alan Condron, with Peter Winsor at the University of Alaska, using new, high-resolution global ocean circulation models, report the first conclusive evidence that this flood must have flowed north into the Arctic first down the Mackenzie River valley. They also show that if it had flowed east into the St. Lawrence River valley, Earth’s climate would have remained relatively unchanged.”

    http://phys.org/news/2012-11-high-resolution-global-ocean-circulation-trigger.html

    “In addition, our work points to the Arctic as a primary trigger for climate change. This is especially relevant considering the rapid changes that have been occurring in this region in the last 10 years.”

    I wonder if this is a clue that some ET shot/shower to cause melting and drainage may have occurred at that Western end of the Laurentide Ice Sheet. Perhaps in the same geographic line of scarring that travels down the West coast of the U.S. and into Northern Mexico.

    This is very interesting.

    TH