Difference between revisions of "Ji̍t-thâu"

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Ji̍t-thâu ê poàn-kéng, kì hû-hō R<sub>☉</sub>, sī Tē-kiû ê 109 pōe, koh lî Tē-kiû 215 R<sub>☉</sub> hn̄g, só͘-í tùi Tē khòaⁿ kìⁿ, Ji̍t ta chiàm thiⁿ 1/2° khoah. Ji̍t-thâu piáu-bīn bô kò͘-thé mā bô e̍k-thé; tōa-pō͘-hūn sī khì-thài [[goân-chú]], koh ū chiàm chió-hūn ê [[hun-chú]].
Ji̍t-thâu ê poàn-kéng, kì hû-hō R<sub>☉</sub>, sī Tē-kiû ê 109 pōe, koh lî Tē-kiû 215 R<sub>☉</sub> hn̄g, só͘-í tùi Tē khòaⁿ kìⁿ, Ji̍t ta chiàm thiⁿ 1/2° khoah. Ji̍t-thâu piáu-bīn bô kò͘-thé mā bô e̍k-thé; tōa-pō͘-hūn sī khì-thài [[goân-chú]], koh ū chiàm chió-hūn ê [[hun-chú]].


Chiàu kho-ha̍k ê hun-lūi, ji̍t-thâu sio̍k G2V sek-lia̍t-hêng (''spectral type''). G2 sī tāi-piáu n̂g-sek ê G un-tō͘ kai-kip chheⁿ, V tō sī [[chú hē-lia̍t]] (''main sequence'') chheⁿ ê ì-sù, sī kâng un-tō͘ ka-kip tang-tiong ê phó͘-thong khoán.
Chiàu kho-ha̍k ê hun-lūi, ji̍t-thâu sio̍k G2V sek-lia̍t-hêng (''spectral type''). G2 sī tāi-piáu n̂g-sek ê G un-tō͘ kai-kip chheⁿ, V tō sī [[chú hē-lia̍t]] (''main sequence'') chheⁿ ê ì-sù, sī kâng [[un-tō͘]] ka-kip tang-tiong ê phó͘-thong khoán.


Kap kî-tha chú hē-lia̍t chheⁿ sio-kâng, ji̍t-thâu tùi [[jia̍t-hu̍t iông-ha̍p]] (''thermonuclear fusion'') hoán-èng tit tio̍h i hong-hù ê lêng-liōng. Chit hō hoán-ēng koan-sia̍p tio̍h kā [[chúi-sò͘]] choán chò [[he-lí-ùm]] (''helium'') kap khah-tāng ê hu̍t-chú ê kòe-têng.
Kap kî-tha chú hē-lia̍t chheⁿ sio-kâng, ji̍t-thâu tùi [[jia̍t-hu̍t iông-ha̍p]] (''thermonuclear fusion'') hoán-èng tit tio̍h i hong-hù ê lêng-liōng. Chit hō hoán-ēng koan-sia̍p tio̍h kā [[chúi-sò͘]] choán chò [[he-lí-ùm]] (''helium'') kap khah-tāng ê hu̍t-chú ê kòe-têng.