Biela's Comet

As a result, it is currently considered to have been destroyed, although remnants have survived for some time as a meteor shower, the Andromedids which may show increased activity in 2023.

In 1832, Greek-Austrian astronomer Georgios Konstantinos Vouris published his own calculations of the elliptical orbit of the comet entitled: Elliptical orbit calculation of Biela's Comet from 96 observations of the year 1832 (Elliptische bahnbere chung des Biela'schen cometen aus 96 beobachtungen des Jahres 1832).

Matthew Fontaine Maury, observing on 14 January 1846, noted that an apparent companion was located 1 arc minute north of the comet.

Subsequent orbital calculations indicated that the nuclei had probably split around 500 days before the 1845 apparition,[15] though more recent work has determined that it may have occurred near aphelion in late 1842.

However, on November 27, 1872, a brilliant meteor shower (3,000 per hour) was observed radiating from the part of the sky where the comet had been predicted to cross in September 1872.

The meteors were seen again on subsequent occasions for the rest of the 19th century, but have now faded away, due to gravitational perturbations moving the node outside of Earth's orbit.

Charles Talmage, using ephemerides provided by John Russell Hind, claimed to have briefly observed a nebulous object in approximately the right position in November 1865.

A puzzling observation recorded as X/1872 X1, seen by N. R. Pogson in late 1872 from the Madras Observatory, was also speculated to be a recovery of Biela's Comet, though once again this was later shown to have been unlikely.

The German astronomer Karl Ristenpart attempted several times to prove a link with the comet now known as 18D/Perrine-Mrkos, which had a very similar orbit to Biela apart from a differing Argument of Perihelion.

[25][26] Given the low tensile strength of such bodies, if a fragment of an icy comet were to strike the Earth, the most likely outcome would be for it to disintegrate in the upper atmosphere, leading to a meteor air burst.

[27] On November 27, 1885, an iron meteorite fell in northern Mexico, at the same time as a 15,000 per hour outburst of the Andromedid meteor shower.

The two components of Biela in 1852, as drawn by Secchi .
The Andromedid or Bielid meteors as seen on the night of November 27, 1872.
Biela's Comet was the subject of several panics over close approaches to Earth. An 1877 newspaper illustration from Chile , captioned "inevitable impact of the Earth with Comet Biela"