Sunday, December 19, 2021

UPDATE LEONARD COMET

 Comet Leonard quickly loses brightness, based on the latest visual observations of this comet, its latest report, is located at visual magnitude m1 = + 4.8, this means a rapid decrease in its rate of increase in brightness, and therefore in its gaseous and dusty activity, according to my calculation at a rate of 0.44 magnitudes per day, this is an excessive rate of decrease in brightness, after the burst of brightness, which took place a few days ago, specifically on December 14, Today the 19th, that is, 5 days later, the comet has lost 2.6 magnitudes, let's bear in mind that a jump of one magnitude is equivalent to a difference in brightness of 2.5 times (the fifth root of 100), so The comet in just 5 days, has varied approximately 6 times its difference in brightness, we can conclude that its period of visibility with the naked eye has been very short, according to my data, little more than a week ... however, it is still right now as bright as the comet 1 P / Halley in its appearance in 1986, I encourage all of you to keep trying to observe it, now that it is still relatively bright, remember, that it is already difficult to see comets of magnitude 5 as it is right now. Graphic : COBS .
https://fb.watch/9_SXErxymp/



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