Hunter’s Moon 2019


In honour of the full Hunter’s Moon this weekend – timelapse from Adrien Mauduit at Night Lights Films – https://www.youtube.com/channel/UCC0CLzCpM6nuLSAi1JNBjkA

Hunter’s is an autumn moon, the first full moon of fall following the Harvest (full moon closest to the fall equinox) moon. https://earthsky.org/tonight/full-hunters-moon-from-dusk-till-dawn?utm_source=EarthSky+News&utm_campaign=45a5e032e7-EMAIL_CAMPAIGN_2018_02_02_COPY_01&utm_medium=email&utm_term=0_c643945d79-45a5e032e7-393970565

Ponder origin of all named moons at the link below –

https://www.timeanddate.com/astronomy/moon/full-moon-names.html

Black Hole Visualization


This week NASA’s Goddard Space Flight Center released a black hole visualization. Jeremy Schnittman, astrophysicist specializing in computational modeling of black hole accretion flows enlisted computer software to animate black hole glory. From https://www.nasa.gov/feature/goddard/2019/nasa-visualization-shows-a-black-hole-s-warped-world

Viewed from the side, the disk looks brighter on the left than it does on the right. Glowing gas on the left side of the disk moves toward us so fast that the effects of Einstein’s relativity give it a boost in brightness; the opposite happens on the right side, where gas moving away us becomes slightly dimmer. This asymmetry disappears when we see the disk exactly face on because, from that perspective, none of the material is moving along our line of sight.

Closest to the black hole, the gravitational light-bending becomes so excessive that we can see the underside of the disk as a bright ring of light seemingly outlining the black hole. This so-called “photon ring” is composed of multiple rings, which grow progressively fainter and thinner, from light that has circled the black hole two, three, or even more times before escaping to reach our eyes. Because the black hole modeled in this visualization is spherical, the photon ring looks nearly circular and identical from any viewing angle. Inside the photon ring is the black hole’s shadow, an area roughly twice the size of the event horizon — its point of no return.

“Simulations and movies like these really help us visualize what Einstein meant when he said that gravity warps the fabric of space and time,” Jeremy Schnittman, who created the images at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, said in a statement.

Simulated black hole.

Click in to see more angles. | The black hole is seen nearly edgewise in this new visualization from NASA. The turbulent disk of gas around the hole takes on a double-humped appearance. The black hole’s extreme gravity alters the paths of light coming from different parts of the disk, producing the warped image. “What we see depends on our viewing angle,” NASA said. Image via NASA’s Goddard Space Flight Center/Jeremy Schnittman.

NASA creates stunning new black hole visualization

Hello Again, You Perfect Moon


Somewhere beyond rivulets of torrential rain assaulting the bedroom window, a full, plump harvest moon prickles with sunlit illumination. Consumed by late night melancholy, my heart aches for restorative lunar wonder. Doesn’t matter to me how often I’ve posted this video. I’ll do it again, and again and again because it makes me smile. This is my happy place – have you ever really seen the Moon?

Night Skies And Petroglyphs


From Harun Mehmedinovic and Gavin Heffernan at https://vimeo.com/357143587 – Ancestral Nights. Filmed for Skyglow Project, a crowdfunded endeavor illustrating effects of light pollution on dark skies. Lose yourself in night skies and petroglyphs….

Carvings, structures and petroglyphs captured in this video represent ancient observance of night skies by Native Hawaiians, Paiute people of California and Puebloans of the Southwest.

Concentric white circles filling the sky over large rock with symbols carved into it.

“These petroglyphs and structures reflect the long standing interest in ancient astronomy which grew stronger as many of the tribes went from the hunter-gatherer to the agrarian societal orders. From references to the sun carved in the rock, and interest in using the sun to predict seasons (entire buildings built to serve as sundials and calendars, a critical element in the farming communities) to those of 13 moons (lunar annual calendar), to carvings of stars and constellations, interest in celestial bodies is ever present across the indigenous communities of the United States.” – Harun Mehmedinovic

Hurricane Trump, Category 5 Disaster…


Behemoth Hurricane Dorian is something of a mystery to Donald Trump. Its anyone’s guess if he can spell hurricane, let alone fathom how they form or what they’re capable of. Heading into the weekend a flicker of presidential duty saw Trump cancel travel plans to Poland and meeting with Ukrainian President Volodymyr Zelenisky to monitor Dorian at home. Home being Camp David – no wait, seems he left Camp David on Marine One to play golf at his course in Sterling, Virginia. Trump crony, Senator Rick Scott of Florida told Fox News –

“We got updates while I was there,” Scott said. “He got updates, I know he played golf yesterday and got updates while he was playing golf.”

Today Trump said –

“We don’t even know what’s coming at us. All we know is it’s possibly the biggest. I have — I’m not sure that I’ve ever even heard of a Category 5. I knew it existed. And I’ve seen some Category 4’s — you don’t even see them that much,” Trump said at a briefing with officials at FEMA’s headquarters in Washington, DC.

“But a Category 5 is something that — I don’t know that I’ve ever even heard the term other than I know it’s there. That’s the ultimate, and that’s what we have unfortunately,” he added, in reference to Hurricane Dorian.

Donald Trump wearing a suit and tie smiling and looking at the camera: President Donald Trump pauses as he talks to media before boarding Maine One at the White House in Washington, Friday, Aug. 30, 2019, en route to Camp David in Maryland. (AP Photo/Carolyn Kaster)

Levels of Trumps’ flippant ignorance are staggering.  Dorian is the 4th category 5 storm to impact Americans since Trump blew into the Oval Office – Irma, 8 months into his presidency, Puerto Rico devastating Maria and Michael last October. Between landfalls of Irma and Maria, Trump said he “never even knew” they (Category 5) existed. The man is a category 5 disaster .

Do we give up? Scream? Hope he isn’t re-elected?  Here’s an idea – what if we put him in a wind tunnel with a golf club and bucket of balls? Never mind, he’d simper “fake” wind velocity, blame Hillary, Mexicans, eagle killing wind energy, climate change clowns and left wing media fear mongering. How about this, we reclassify meteorological cauldrons in terms Trump understands, no more F scale tornados, category 1-5 hurricanes. Lets lump all natural disasters together, rate them on the Golf Scale.

Oh man, see Trump smile. Thumbs up, now he understands.

 

Northern Hemisphere Aurora Alert


As I write, streams of solar wind advance at 594.5 Km/second. Commanded by CH58+, a impressive coronal hole poised to deliver rare auroral punctuation as far south as Washington State, Idaho, Montana, Michigan and Minnesota.

Auroras happen when electrons energized by acceleration collide with Earth’s upper atmosphere. Acceleration allows energized electrons to follow Earth’s magnetic field downward to the poles. Anywhere from 80 – 500 Km above Earth’s surface, electrons collide with oxygen & nitrogen atoms, spiking the atoms’ energy. Soon after, atoms relax to their former energy state – relaxation creates light known as aurora borealis. Initially light forms an arc from horizon to horizon, within a few hours arcs twist and sway in upper atmosphere wind.

A geomagnetic storm warning issued by NOAA, Space Weather Prediction Center, forecasts G1 (minor) activity August 31, increasing to G2 (moderate) September 1st as solar wind blows Earthward at 650 Km/second.

Its been years since space weather issued public alert of aurora over Greater Vancouver. Auroras are fickle, space weather makes no promises. That said, if you find yourself away from city lights with clear skies, don’t miss an opportunity for Aurora to wrap her arms around you. Once you meet Aurora, night skies become a source of wonder.

G1-G2 Watches 31 Aug-1 Sep, 2019

https://www.swpc.noaa.gov/

 

https://www.youtube.com/channel/UCC0CLzCpM6nuLSAi1JNBjkA