March 23, 1996
Your birthday is not just a date on a calendar. It is the yearly return of a moment when the universe became more observant, more feeling,...
Comet Hyakutake's Past and Future
Birthday · March 23, 1996
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APOD published March 23, 1996. Credit: Herman Mikuz, Crni Vrh Observatory, Slovenia. A publication-date match, not a photo taken on your date. Independent of NASA.
The above false-color picture of Comet Hyakutake taken just two days ago shows its rapidly developing tail. The comet now has a substantial coma with a bright center, lending it a dramatic eye-like appearance. This is not Comet Hyakutake's first visit to the inner Solar System. Recent orbital determinations clearly show Comet Hyakutake's was here before, although the previous approach is estimated to be about 8600 years ago - during the epoch of the first recorded human cities. Were this the comet's first trip to the inner Solar System, it probably would not appear as bright as it does now - first time comets typically do not shed as much luminous gas as veterans. Before making any approach to the inner Solar System, Comet Hyakutake was dormant in the Oort cloud of the outer Solar System for a few billion years, along with hundreds of thousands of similar comets. Comet Hyakutake is predicted to become the brightest comet since Comet West in 1976, which rivaled the brightest stars in the sky. Tonight, Comet Hyakutake can be seen best from about 10 pm near the Big Dipper's handle. Latest Comet Hyakutake images: Crni Vrh Observatory, Slovenia, Fayetteville Observer-Times
Image credit: Herman Mikuz, Crni Vrh Observatory, Slovenia