Thó͘-chheⁿ

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Thó͘-chheⁿthài-iông-hē ê 1 lia̍p hêng-seng. Tùi thài-iông hia sǹg--kòe-lâi sī tī tē-6-ūi, sī thài-iông-hē tē-2 tōa ê hêng-seng, kan-na Bo̍k-chheⁿ koh khah tōa. Thó͘-chheⁿ sī 1 lia̍p gá-suh tōa-hêng-seng (gas giant).

Thó͘-chheⁿ ê hêng píⁿ-píⁿ, chhiah-tō kap ke̍k-tē ê ti̍t-kèng cheng-chha beh ū 10% (120,536 km tùi 108,728 km). Che sī in-ūi i chū-tńg ê sok-tō͘ kín, e̍k-thé ê sêng-hūn koân. Pa̍t-lia̍p khì-thé hêng-seng oan-nā ū sio-siâng ê hêng, m̄-koh bô hiah ke̍k-toan. Thó͘-chheⁿ mā sī Thài-iông-hē bi̍t-tō͘ siōng kài kē ê hêng-seng, pêng-kin ê specific bi̍t-tō͘ chiah 0.69, pí chúi ke chin kē. Chóng--sī che sī pêng-kin ê sò͘-ta̍t: tāi-khì-chân ê téng-pêng koh khah kē bi̍t-tō͘, ah i ê he̍k-sim ê bi̍t-tō͘ tō pí chúi ke chin koân.

Thó͘-chheⁿ siōng chhut-miâ ê te̍k-cheng kiám-chhái sī i ê khoân. Galileo Galilei tī 1610 nî iōng i ê chhian-lí-kiàⁿ tāi-seng khoàⁿ--tio̍h, m̄-koh i bô lí-kái hia ê mi̍h sī siaⁿh. Kàu-kah 1655 nî chiah ū Christiaan Huygens iōng 1-thò ke chin ū-la̍t ê chhian-lí-kiàⁿ, koat-tēng Thó͘-chheⁿ ū khoân kho͘ tī goā-bīn. 1675 nî Giovanni Domenico Cassini hoat-hiān hia ê khoân si̍t-chāi sī kúi-nā-ê khah iù ê khoân ha̍p chò-hoé ê, koh khoân kap khoân tiong-ng ū làng-phāng. Āu--lâi ū lâng kā siōng toā ê phāng hō i ê miâ, hō͘-chò Cassini Division.

Pioneer 11-hō tī 1979 nî poe oá Thó͘-chheⁿ. Kiâⁿ-chûn-chiá 1-hō (1980) kap Kiâⁿ-chûn-chiá 2-hō (1981) toè tī āu-piah. Cassini-Huygens thài-khong-chûn tī 2004 nî 7-goe̍h 1 poe ji̍p Thó͘-chheⁿ ê kúi-tō.

Thó͘-chheⁿ ū chin chē lia̍p goe̍h-niû, kî-tiong 30 lia̍p ū hō-miâ. Siông-sè ê sò͘-ba̍k oh koat-tēng, in-ūi se̍h thó͘-chheⁿ ê mi̍h ū bē-chió. Titan sī kui-ê thài-iông-hē î-it 1 lia̍p ū tāi-khì-chân ê goe̍h-niû.

Thài-iông-hē
Eight Planets.png
Chheⁿ: Ji̍t-thaû
He̍k-chheⁿ: Chúi-chheⁿ | Kim-chheⁿ | Tē-kiû | Hoé-chheⁿ | Bo̍k-chheⁿ | Thó͘-chheⁿ | Thiⁿ-ông-chheⁿ | Hái-ông-chheⁿ
É-he̍k-chheⁿ: Ceres | Mê-ông-chheⁿ | Haumea | Makemake | Eris
Sió-bu̍t-thé: Sió-he̍k-chheⁿ | Hái-ông-chheⁿ goā chheⁿ-thé | Tn̂g-boé-chheⁿ
Oē-chheⁿ: Goe̍h-niû | Hoé-chheⁿ ê | Bo̍k-chheⁿ ê | Thó͘-chheⁿ ê | Thiⁿ-ông-chheⁿ ê | Hái-ông-chheⁿ ê
Tīn: Sió-he̍k-chheⁿ-toà | Kuiper-toà | Sàn-loān îⁿ-poâⁿ | Oort-hûn
Chhiáⁿ chham-khó thian-bûn bu̍t-thé, thài-iông-hē ê chheⁿ-thé lia̍t-toaⁿ, chiàu poàⁿ-kèng pâi iah sī chiàu chit-liōng pâi