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Boy, this has been an intense week for astronomy news. First there was the largest neutron star ever discovered (it would take an eighth grader nearly an hour to bicycle a distance equivalent to its diameter!), then there was the story about Tabby’s Star gulping down exoplanets and pulverizing a moon (Ferrebeekeeper didn’t post that one, but you can read about it here) and now, today brings reports of another extra-solar mystery object akin to the mysterious Oumuamua which caused such a sensation back in 2017.

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C/2019 Q4 (Borisov) in the middle of the image: Note the faint tail!

Back in August 30, 2019, Gennady Borisov, an amateur astronomer from Ukraine, spotted an unknown comet which has been dubbed “C/2019 Q4 (Borisov)”.  Not only is the comet traveling at the blazing speed of  150,000 kilometers per hour (93,000 mph), it also has a hyperbolic orbit (meaning the object is not bound to the solar system) and it is approaching from a strange angle which in skew to the planar disk of the solar system.

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At present the comet is far away from Earth and yet approaching on a path which puts the sun between us and the object (astronomers don’t like pointing their telescopes into the sun for some reason), however the mysterious object should approach as close as Mars at which point we will be able to learn more about it.  Right now all we know is that C/2019 Q4 (Borisov) has a diameter between 2.4 and 15 kilometers (1.5 to 10 miles) and doesn’t seem to be from around here.  Whereas Oumuamua zipped through before we could get a good handle on it, we should have a chance to properly study this comet. Since comets (unlike strange asteroid shards) are volatile, we should be able to get a sense of its composition by studying the makeup of the tail.  Stay tuned for more news about this peculiar object!

Magpies and Hare (Ts’ui Po, 1061 AD, ink and watercolor on silk)

Here is an exquisite painting by the Song dynasty master Ts’ui Po which shows two magpies haranguing a passing hare.  It is strange to think that this delicate and refined work was painted 5 years before the battle of Hastings.  The word for magpie is homonymous with the word for happiness—so two magpies represent double happiness–shuāngxǐ—which is one of the most universal Chinese concepts. Lucky shuāngxǐ symbols are plastered all over all sorts of Chinese establishments and goods (I put one at the bottom of this post and I’m sure you’ll recognize it).  Ts’ui Po was famed for his ability to find the underlying rhythm in natural subjects and express it with simple fluid brushwork:  the entire painting is structured as a gentle S-shaped curve, but within that compositional framework the hare and the magpies have their own calligraphic energy.  Also note how wind is blowing back the branches, leaves, and weeds in the painting.   Ts’ui Po captured the tao moving within a small ephemeral moment of natural beauty.

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