Asteroids / Sirius Rising Significance / Spectrum of Impactors -Cosmography101-36.1 Randall Carlson

Cosmography101 Class 36 part 1 with Randall Carlson, from March 4, 2009. Asteroids and Meteors / Significance of heliacal rising Sirius to the Egyptians and the Founding Fathers / Spectrum of possible Impactors and why impact expectations are too low... Find ALL these classes listed in sequence on the playlist!

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These 11-13 orbits ago classes are complementary to The Randall Carlson Podcast, with new episodes exclusively published on our new channel that I also operate for RC:    / randallcarlson1440  

Summary notes/topics:
3-2-09 Tunguska-sized object fly-by: Charles asks how is it that we don’t see/track these things
Size critical to detection – mouse easier to hide than an elephant
Chandra Wickramasinghe research says there’s a whole class of objects with low surface albedo
Object’s “punch” is a factor of its velocity – exponential relation to destructive effects
In a head-on collision with Earth, you have to add in its velocity of 18.5 m/s to the equation
Tunguska object “from the Sun” or coming up from behind, so lower velocity during June Taurids
Object the size of pick-up truck came in recently over Texas; Have those several times each year!
Peekskill, NY object in 1992 had multiple videos – can find on Youtube / above football games
Other incoming meteoroids hit house then car on same block, almost exactly ten years apart
Sirius – the Dog Star, importance to Egyptian culture because its rising with sun marked new year
Heliacal rising (with sun) Helios of Sirius on the eastern horizon
Voyager star-mapping: looking east to sunrise, July 4, 2012 from equator
Significant astrological configuration with the birth-date of America (astronomical?) July 2-4th
BREAK
Founder’s awareness of heliacal rising - Multiple Freemasons, particularly Ben Franklin knew
Difficult to see due to brightness of sun, but would have been able to see Sirius earlier days earlier
Showing 2012 alignment because it is so nearly perfect with both rising simultaneously
Was more like July 23rd new year during time of the Egyptians, due to precession
Integrating multiple astronomical motions coherently - tropical/sidereal/precessional - takes effort
Again Heliacal rising animation, but with dark sky
Green triangles/numbers on horizon is astronomers coordinate system – Latitude/azimuth system
If it was on the equinox, the sun would be right at 90 degrees (directly east on equator)
Effects of 40-meter object’s atmospheric explosion, energy of an atomic bomb
Overdue for a Tunguska-scale event – perhaps what it’ll take to get public attention
Declassified counts of atmospheric explosions (show newer diagram ’88-’20) CNEOS fireballs
Variety/spectrum of atmospheric impactors: Snowball / stony chondrite / hunk of iron
Stony Tunguska object vs. metallic Barringer meteorite
BREAK
Swarm versus single impactor: Carolina Bays effects versus KT Chicxulub Yucatan effects
Stonies 10x more abundant than iron asteroids/objects, where many don’t leave a lasting crater
Probabilities derived from crater counts
Hamlet’s Mill – 1969 tome on Cosmic Architecture, origins of human knowledge and transmission
Ancients before Hipparchus knew about precession of the equinoxes
Hard to get around but definitely worth reading
With Joseph Campbell, helped to raise mythology and place on a firm, scholarly basis[foundation]

All recording/editing/publishing by Bradley Young with YSI Productions LLC (copyrights)

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Cosmography101 art by Steven Muncy