| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
★ |
キーボードの |
|
NASA |
|
| |
|
|
最上段の Ｆ１１ ボタンを押すと、 |
|
Planetary Photo Journal |
|
| |
|
|
全画面表示になります。 |
|
Astronomy Picture of
the Day |
より |
|
| |
太陽のプロミネンス |
|
もう１度押すと、元へ戻ります |
|
|
|
| |
|
|
| |
|
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
| |
|
|
| |
|
|
| |
|
|
| |
| |
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
| |
| |
| |
|
|
| |
|
|
| |
|
|
| |
探査機「Hinode」による撮影 |
|
2007/1/12 |
|
| |
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
| |
地球と太陽の比較 |
|
| |
|
|
| |
| |
| |
| |
| |
|
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
こうしてみると、地球は「吹けば飛ぶよな」ちっぽけな存在だなあ |
|
| |
| |
| |
| |
| |
太陽を−横切る「水星」 |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
水星 |
気温 ： -173℃〜+427℃ |
|
|
| |
|
|
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
水星にはこのような放射状クレーターが数多くある。 よく光を反射する物質が多いとか、いくつかの仮説 |
|
| |
はあるが、まだ解明には至っていない。 |
|
| |
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| 土地のくぼみによる |
|
| 放射状クレーター 2008年１月 Messenger撮影 |
|
|
カーブ曲線 これも何故できたのかわからない |
|
|
|
|
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
| |
| |
金星 |
気温 ：+462℃（大気中のCO2 の層が厚い） |
大気： CO2 95% 窒素5% |
|
| |
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
| |
Earth (Globe ,Terra) |
気温 ：-88℃〜+58℃ |
大気： 窒素80% 酸素20% |
|
| |
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
日が沈む |
|
トワイライト ヨーロッパ |
|
|
|
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
地球の夜景 |
インドや中国が内陸まで発展してきているのがわかる |
韓国だけが島のように |
|
|
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
火星 |
気温 ：-87℃〜-5℃ |
|
大気： CO2 95% 窒素5% |
|
| |
|
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
火星探査機 Rover と周りの景色 |
|
| |
| |
| |
| |
| |
探査機「ローバー」 |
|
| |
| |
|
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
火星の夜明け |
|
|
| |
|
|
|
| |
|
|
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
手前は展開された宇宙船 ローバーは中央の石まで移動している（わだちが見える） |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
Roverが走り回った平原 酸化鉄の土が多いため、赤茶けて見える |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
崖から水が流れた跡 |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
Mariner Valley付近の深い谷−詳しいことはまだわかっていない |
中央の穴は洞窟（垂直に落ち込んでいる） |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
美しい風紋の砂漠−詳しいことはまだわかっていない。火星の表面ではしばしば強風が吹く事は研究者の間では良く知られている |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
白い筋は DustStorm（砂嵐） |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
氷河クレーター |
|
泥に覆われているので氷の蒸発が免れている |
|
| |
大きさは１つの市くらい。氷河の厚さは１ｋｍもある。 |
|
| |
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
氷のあるクレーター |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
南極−ドライアイスと氷でできている |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
|
|
| |
火星の月「Phobos」の謎 |
|
|
| |
表面の温度が、日の当たっている所と影の所で |
|
|
| |
すごく違う。 |
|
|
| |
これは月が回転しないのと、大気がないせいらしい。 |
|
| |
|
| |
火星の月はみな小さく破片的なので、どうやら |
|
|
| |
ASTEROID Beltから火星の引力に引っ張られて |
|
|
| |
やってきたということだ。 |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
| |
３惑星の大きさを比較 |
|
火星は地球の半分だね |
|
| |
金星 地球 火星 |
|
| |
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
| |
火星の外 |
|
| |
火星と木星の間はすごく離れていて、間に「ＡＳＴＥＲＯＩＤ ＢＥＬＴ」という、たくさんの岩石の |
|
| |
破片が軌道を描きながら回っている。 |
|
| |
英文を読むと、太古の昔に、大彗星に衝突され「こなごなに破壊された惑星」の残骸だそうだ。 |
|
| |
| |
|
|
| |
|
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
破片だよ |
これがぐるぐる回っているわけだ |
|
| |
|
|
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
<<ホームページへ>> |
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− |
|
| |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
