Gîn-hô
- Tē-kiû só͘ tī ê gîn-hô khòaⁿ "Hô-khe".
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/NGC_4414_%28NASA-med%29.jpg/280px-NGC_4414_%28NASA-med%29.jpg)
Gîn-hô (galaxy) sī chheⁿ, chheⁿ-kan bu̍t-chit (interstellar medium), tiān-chiuⁿ (plasma), khoàⁿ bô ê àm-o͘ bu̍t-chit (dark matter) téng-téng bu̍t-chit, in-ūi tāng-la̍t lâi hêng-sêng ê 1 ê hē-thóng. Tián-hêng ê gîn-hô ū 107 kaù 1012 lia̍p chheⁿ, choân-pō͘ chò-hoé leh se̍h 1 ê tāng-sim (center of gravity). Toā-hūn ê gîn-hô pau-hâm chin chē chheⁿ-hē (star system), chheⁿ-thoân (star cluster) ham chē-chē khoán ê chheⁿ-hûn (nebula). Toā-hūn ê gîn-hô ê ti̍t-kèng iok-liōng 103 kaù 105 kng-nî, ah gîn-hô ham gîn-hô ê kī-lî iok-liōng 106 kng-nî.
Sui-bóng àm-o͘ bu̍t-chit chiàm gîn-hô ê chit-liōng chha-put-to 90%, m̄-koh lán tùi in ê sèng-chit iáu bô siáⁿ liáu-kái, hoān-sè chin chē gîn-hô ê tiong-sim lóng ū chhiau-kip o͘-khang (supermassive black hole) tī--leh.
![]() | Pún bûn-chiuⁿ sī chi̍t phiⁿ phí-á-kiáⁿ. Lí thang tàu khok-chhiong lâi pang-chō͘ Wikipedia. |