Swing By Juno On Your Way To Comet Wirtanen

Many of us have been hunting up comet 46P/Wirtanen these December nights, but there’s another solar system critter near the comet you might want to check out — asteroid 3 Juno. They’re both in the same region of the sky, so after you’re finished observing 46P, you can nudge your binoculars or telescope about 10°…
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Time To Check In With Comet 46P/Wirtanen

Time to check in on our current favorite comet. It was discovered by American astronomer Carl Wirtanen in January 1948. The “46P” part refers to it being the 46th periodic (P) comet discovered. Periodic comets, also known as short-period comets, revolve around the sun in fewer than 200 years. Those that take longer are called…
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A Comet To Warm A Winter’s Night — How To See 46P/Wirtanen

Some of us have been anticipating the close approach of comet 46P/Wirtanen for years. The time is nigh! Every 5.4 years, the comet drops into the inner solar system from out past Jupiter and occasionally passes near Earth at the same time it’s at perihelion or closest to the sun. This happy set of circumstances…
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Amateur Astronomer Discovers New Dawn Comet — Here’s How To Find It

Amateur astronomer Don Machholz bagged his 12th visual comet discovery on the morning of Nov. 7 from his home in Colfax, Calif. These days, most comets are found by robotic survey telescopes that scan the sky all night long looking for anything that moves. For an amateur to spot one the old-fashioned way with a telescope in…
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What’s Going On With ‘Oumuamua — Alien Technology Now?

First it was an asteroid, then a comet and now a group of Harvard researchers suggest the enigmatic ‘Oumuaua could be an alien-built light sail. The half-mile-long flying whatever-it-is was discovered on October 2017 with the Panstarrs-1 telescope on Mt. Haleakala in Maui. Like similar discoveries, the object was too small to appear any larger…
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