It’s colder than ever – we woke to our first snow here this morning, February 1. So you’ll think at least one and a half times before going out in tomorrow’s dawn to see what the groundhog sees.
And see the end-note about enlarging this illustration.
The wealth of planets continues in the sky to the west of the Sun. As the broad arrow on the celestial equator shows, if you are out an hour earlier Jupiter and Venus, though in a darker sky, will be that much lower, and Saturn and the exquisitely slender Moon will be yet to rise. The numbers beside the Moon dates are its “age” at the time – hours from the New Moon instant. Thus on Feb. 2 morning the Moon is 57 hours before New, which will be February 4 at 21 UT.
Whether you brave the cold or not, the groundhog will: his annual duty is to peer out at least far enough to look for his shadow. If he has one, he will back into his burrow, to continue hibernating for the next six weeks. They will be cold, under the clear sky that lets warmth escape upward.
A quiz question might be: Can you spell the name of that legendary groundhog? Is it (my first attempt to remember) Punxsuwatawny Phil? Not quite. Spelling it backward, it’s Lihp Yenwatuŝxnup.
Right now, according to weather satellite maps, there is a great clear area over the central USA, fringed by cloud over the west and east coasts and Canada, and dubiously thin cloud over where Phil lives in Pennsylvania. What I think is certain is that it’s very cold now.
Some, such as twittering Trump, use this to mock the idea of global warming. “What the hell is going on with Global Waming [sic]? Please come back fast, we need you!” This is oblivion of the plain science. Heat is energy. Added to the air and the oceans, it stirs activity, aggravates extreme weather of all kinds – killing chill in North America and Britain while Australians are dying as if in a furnace. Record-breaking temperatures both low and high are increasing in number, but the record-breaking highs are increasing in number twice as fast.
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DIAGRAMS in these posts are made with precision but have to be inserted in another format. You may be able to enlarge them on your monitor. One way: right-click, and choose “View image”, then enlarge. Or choose “Copy image”, then put it on your desktop, then open it. On an iPad or phone, use the finger gesture that enlarges (spreading with two fingers, or tapping and dragging with three fingers). I am grateful to know of what methods work for you.
This weblog maintains its right to be about astronomy or anything under the sun.
Earthsky.org posted a very clear article by Rutgers Professor Jennifer Francis, explaining how the chaotically wandering polar vortex is connected to global warming.
https://earthsky.org/earth/how-polar-vortex-connected-to-global-warming
The arctic is warming twice as fast as the temperate zone. The lesser difference between temperate and arctic temperatures decreases the amount of energy that drives the jet stream from west to east. As the jet stream slows down it starts to meander. When the jet stream wanders south it can pull the polar vortex with it.
The article includes some very troubling illustrations of global temperature anomalies. There’s a small area of below-normal temperatures in North America, and lots of above-normal temperatures in the rest of the northern hemisphere.
The comments, predictably, are dominated by guys sitting in front of their computers in their underwear who know more about meteorology and climate science than a tenured professor.
It’s been so cold here in central Virginia lately that I haven’t felt like going out to take pictures of the morning planet scene as the Moon glided by during the last week. It’s also dissuading me from taking my telescope out in the early morning to finish off the remaining 38 objects for completion of my Herschel 400 list (most are galaxies in Coma Berenices, which I believe is the subject of one of Guy’s publications?)
Yes, “Berenice’s Hair”, but I’ve just noticed that it’s somehow dropped off my publications page (universalworkshop.com). I’ll have to see to that.
It’s still out there at
https://www.universalworkshop.com/guy-ottewell/berenices-hair-historical-novel/
though the link in that goes to an Amazon page that has an earlier front cover:
https://www.amazon.co.uk/Berenices-Hair-Guy-Ottewell/dp/093454655X
I still don’t quite get it.. If Phil sees his shadow and burrows again we get six more weeks of winter, but if he stays out, spring is right around the corner?. They both seem to mean the same to me, And besides, we always get some unexpected blips even as far into May, and sometimes even June. Could someone please explain it to me.
If a winter sky is cloudless (you see shadows), weather is cold.
And it sometimes continues that wasy. But don’t too literally believe Phil that it always does.
I should have given a reference to my first and fuller piece about Groundhog Day:
http://universalworkshop.com/guysblog/2015/02/02/how-much-wood-would-a-woodchuck-chuck/