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ζ Cas HR 153 HIP 2920 magnitude 3,69

traditional Chinese single star asterism: an auxiliary road to Gedao; also represents the chief assistant to maintain roads. Gedao (the flying corridor) is a long chain of stars next to the Purple Palace enclosure cons…

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Astronomia

Informação oficial da IAU

Designação

HR 153

HIP

2920

ID de Bayer

ζ Cas

Magnitude visual

3,69

Ascensão reta (J2000)

9,24285°

Declinação (J2000)

53,8969°

Adoção pela IAU

2017/06/30

Origem do nome

traditional Chinese single star asterism: an auxiliary road to Gedao; also represents the chief assistant to maintain roads. Gedao (the flying corridor) is a long chain of stars next to the Purple Palace enclosure constellation. Paradoxically, the auxiliary road is considered a single star asterism as attested in several historical star charts (e.g. the famous Suzhou map). Sun and Kistemaker (1997) who studied sources from the Han dynasty (around the year "0" plusminus 200 years) identify ζ Cas with this single star. Another researcher, Sun Shuwei, who dealt with the Xinyixiangfayao Star Map from Su Song (苏颂, 1020-1101 CE) identifies δ Cas. Both is plausible.

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