# Chúi-chheⁿ

Chúi-chheⁿ |  |
| Kúi-tō sèng-chit |
| Goân-kî J2000 |
| Aphelion | * 7010698168774620779♠0.466697 AU
* 69,816,900 km
 |
| Kīn-ji̍t-tiám | * 7010460011956423793♠0.307499 AU
* 46,001,200 km
 |
| Pòaⁿ-tn̂g chhia-sim | * 7010579090365522286♠0.387098 AU
* 57,909,050 km
 |
| Lî-sim-lu̍t | 6999205630000000000♠0.205630 |
| Kúi-tō chiu-kî | * 7006760053024000000♠87.9691 d
* 6999240846000000000♠0.240846 yr
* 0.5 Mercury synodic day
 |
| Hōe-ha̍p chiu-kî | 115.88 d |
| Pêng-kin kúi-tō sok-le̍k | 47.362 km/s |
| Pêng-kin kīn-tiám-kak | 174.796° |
| Khi-pêng | * 7.005° to ecliptic
* 3.38° to Sun's equator
* 6.34° to invariable plane
 |
| Seng-kau-tiám ê keng-tō͘ | 48.331° |
| Hn̄g-tiám ê ín-sò͘ | 29.124° |
| Ōe-chheⁿ | None |
| Bu̍t-lí sèn-chit |
| Mean diameter | 7006488000000000000♠4880 km |
| Pêng-kin poàn-kéng | * 7006243970000000000♠2,439.7±1.0 km
* 6999382900000000000♠0.3829 Earths
 |
| Píⁿ-pêⁿ-lu̍t | 0.0000  |
| Piáu-bīn-chek | * 7013748000000000000♠7.48×107 km2
* 0.147 Earths
 |
| Thé-chek | * 7019608300000000000♠6.083×1010 km3
* 0.056 Earths
 |
| Chit-liōng | * 7023330110000000000♠3.3011×1023 kg
* 0.055 Earths
 |
| Pêng-kin bi̍t-tō͘ | 7003542700000000000♠5.427 g/cm3 |
| Piáu-bīn tiōng-le̍k | * 7000370000000000000♠3.7 m/s2
* 0.38 g
 |
| Koàn-sèng in-chú ê lêng-lu̍t | 6999346000000000000♠0.346±0.014 |
| Thoat-cháu so̍k-tō͘ | 4.25 km/s |
| Hêng-chheⁿ chū-choán chiu-kî | * 7006506701440000000♠58.646 d
* 7006506700000000000♠1407.5 h
 |
| Chhiah-tō chū-choán sok-tō͘ | 10.892 km/h (3.026 m/s) |
| Chhia-sim khi-pêng | 2.04′ ± 0.08′ (to orbit) (0.034°) |
| Pak-ke̍k chhiah-keng | * 18h 44m 2s
* 281.01°
 |
| Pak-ke̍k chhiah-hūi | 61.45° |
| Hoán-siā-lu̍t | * 0.088 (Bond)
* 0.142 (geom.)
 |
|

| Piáu-bīn un-tō͘ | siōng-kē | pêng-kin | siōng-koân |
| --- | --- | --- | --- |
| 0°N, 0°W | 100 K | 340 K | 700 K |
| 85°N, 0°W | 80 K | 200 K | 380 K |

 |
| Bêng-hián-tō͘ | −2.48 to +7.25 |
| Kak-ti̍t-kèng | 4.5–13″ |
| Tāi-khì-khoan |
| Piáu-bīn ap-le̍k | trace (≲ 0.5 nPa) |
| Thé-chek cho͘-sêng | * goân-chú sng-sò͘
* natrium
* magnesium
* goân-chú chúi-sò͘
* kalium
* khā-lú-siúm
* helium
* bî-liōng ê thih, a-lú-mih, argon, chek-sò͘ hun-chú, sng-sò͘ hun-chú, jī-sng-hòa thòaⁿ-sò͘, chúi-cheng-khì, xenon, krypton kap neon
 |
|  |

**Chúi-chheⁿ** (水星, Eng-gí: Mercury) sī siōng oá Ji̍t-thâu ê he̍k-chheⁿ, Thài-iông-hē lāi-té tē 2 sè lia̍p--ê. Chúi-chheⁿ ê chheⁿ-téng (*apparent magnitude*) ùi -0.4 kaù 5.5, i ê khan-tǹg-kak (*elongation*) ke̍k-ke 28.3°, ài phú-hoáⁿ-kng (*twilight*) ê sî chiah khoàⁿ ē-tit tio̍h. Lán tùi Chúi-chheⁿ iáu bô siáⁿ liáu-kái, 1974 kaù 1975 hit chūn thài-khong-chûn (*spacecraft*) Chúi-hu 10 (*Mariner 10*) bat oá-kīn, m̄-koh chiah khoàⁿ tio̍h 40%-45% niā.

Chúi-chheⁿ kap Goe̍h-niû chin sio-siâng, goā-piáu lóng sī chheⁿ-chi̍oh-khut. I bô oē-chheⁿ mā bô tāi-khì-chân, m̄-koh ū 1 ê toā thih-sim, chō-chiâⁿ ê chû-tiûⁿ chha-put-to Tē-kiû--ê 1% hiah kiông. Chúi-chheⁿ piáu-bīn ê un-tō͘ ùi 90 kaù 700 K, chiàⁿ-ji̍t-thaû-kha (*subsolar*) siōng joa̍t, oá lâm-pak-ke̍k (*poles*) ê chheⁿ-chio̍h-khut ê khut-á-té siōng léng.

## Goā-pō͘ liân-kiat

* NASA's Mercury fact sheet Archived 2020-05-20 at the Wayback Machine.
* 'BepiColombo', ESA's Mercury Mission
* 'Messenger', NASA's Mercury Mission
* SolarViews.Com
* Atlas of Mercury - NASA

| Thài-iông-hē |
| --- |
|  |
| **Chheⁿ:** Ji̍t-thâu |
| **He̍k-chheⁿ:** Chúi-chheⁿ | Kim-chheⁿ | Tē-kiû | Hóe-chheⁿ | Bo̍k-chheⁿ | Thó͘-chheⁿ | Thian-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 | Thian-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 |