3D/Biela
Encyclopedia : 3 : 3D : 3DB : 3D/Biela
#endnote_NK] | semimajor=3.5253 AU | perihelion=0.8606 AU | aphelion= 6.190 AU | eccentricity=0.7559 | period= 6.619 a | inclination=12.550° | last_p=September 24, 1852 | next_p= Lost }}
3D/Biela is the official designation for a lost periodic comet discovered in 1826 by Wilhelm von Biela. It is sometimes known as Comet Biela or Biela's Comet.
The comet was sighted in 1772 by Charles Messier and in 1805 by Jean-Louis Pons. However, it was Wilhelm von Biela who discovered it in its 1826 perihelion approach (on February 27) and calculated its orbit, discovering it to be periodic with period 6.6 years. It was only the third comet (at the time) found to be periodic, after the famous comets Halley and Encke.
In its 1846 appearance, the comet was observed to have broken up into two pieces. It was observed again in 1852 but never seen again. In 1872, a brilliant meteor shower was observed radiating from the part of the sky where the comet had been expected to appear. These meteors became known as the Andromedids or "Bielids" and it seems apparent that they indicated the death of the comet. The meteors were seen again on subsequent occasions for the rest of the 19th century, but have now faded away.
A highly speculative theory suggests that a fragment of Biela's Comet may have been responsible for starting the Peshtigo Fire [link], the Saugatuck Fire and Great Chicago Fire. However, there is no direct evidence of this.
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External links
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