The constellation source of Antarctic constellation

Abi Nicholas de LaKeller made another naming contribution during the period of 175 1-1752. To commemorate the invention of octupole, it was named Octupole, which was the predecessor of sextant and was invented by John Harley in 1730 to determine the position of stars.

One of the southern constellations. The French astronomer Llakaj demarcated it in 1752 while working in the Cape of Good Hope. Antarctic and Ursa major are two brilliant constellations in the whole day.

There is a Polaris in Ursa minor. Unfortunately, the star in the South Pole is very dark, and it is not as beautiful as the Polaris invivo. At present, the star closest to the south celestial pole that can be observed by naked eyes is 1 fifth star.

Nevertheless, according to the positions of constellations and bright stars near the South Pole, the position of the South Pole can still be roughly determined. For example, the midpoint of the line between the water Committee I of Bojiang and the horse belly I of Centauri; From the midpoint of the "False Southern Cross" between Carina and Capricorn; The midpoint of the line between Bee III and Bee I and small magellanic cloud pointed by a pair of eyes in the fly constellation; The connecting line between Sirius and Lao Nianxing extends southward 1 times; The vertical south of the cross of the southern cross extends four times the distance. Of course, these observation methods can only be carried out in areas above the mid-latitude in the southern hemisphere.