Àwọn ààyè-iṣẹ́

Mercury

The smallest planet and the closest to the Sun, with the most eccentric planetary orbit.

NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

The smallest planet, where one day from sunrise to sunrise lasts two whole Mercury years.

Mercury's grey, cratered horizon. — Mercury's cratered limb, seen by NASA's MESSENGER spacecraft. Credit: NASA

Mercury is a rocky world only slightly larger than our Moon. It has almost no atmosphere, so its surface swings between about 430 °C by day and −180 °C at night.

It spins exactly three times for every two orbits around the Sun, so one solar day (sunrise to sunrise) lasts two Mercury years. Its large iron core makes it the second densest planet after Earth.

Wáròyìn nínú àwọn ìṣàmúlò-ètò

Àwọn ìṣàmúlò-ètò ààyè-iṣẹ́

Àwọn àṣẹ
Ìṣàmúlò-ètò	4,879 km	[1]
Àwọn Ìṣàmúlò-ètò	3.301 × 10²³ kg	[1]
Ìjánu-ìṣàmúlò-ètò	5.429 g/cm³	[1]
Ìṣàfihàn ààyè-iṣẹ́	3.7 m/s²	Tí a fì ṣẹ̀dà láti inú àtòjọ-ẹ̀yàn ààyè-iṣẹ́
Ìjánu-ìṣàmúlò-ètò	4.25 km/s	Tí a fì ṣẹ̀dà láti inú àtòjọ-ẹ̀yàn ààyè-iṣẹ́
Ìjánu-ìsún	58.6 ọj	[1]
Ìgbá tí a bá fi ṣẹ́gun	176 ọj	[2]
Àwọn ààyè-iṣẹ́	88 ọj	[3]
Àwọn ìṣàfarawé àwọn ààyè-iṣẹ́	0.034°	[2]
Àwọn ìṣàmúlò-ètò	167°C	[2]
Àwọn ààyè-iṣẹ́	0	[2]
Àwọn ààyè-iṣẹ́ ìsàlẹ̀-ilà	0.3871 au	[3]

Àwọn ìrànwọ́ àti àkọlé lòòlù àwọn módè́ì tí a fi pamọ́ fún ìmọ̀. Kò yẹ ki wọn lò fún ìṣàfihàn, ìṣàmúlò-ètò àti àwọn ìṣẹ̀dá iṣẹ́. Àwọn ìwé-ẹ̀rì ní ọ̀fẹ̀ àti àwọn ààyè-iṣẹ́ kò ní ìgbà gbà. Ka àwọn ìṣàmúlò-ètò ìròyìn