NASA 宇宙の記録
今日の天体写真 (APOD)= カレンダーから選ぶ「宇宙の神秘」=

1995年から今日まで、NASAが1日1枚選定してきた「Astronomy Picture of the Day（APOD）」を日本語で楽しめるアーカイブ・ギャラリーです。神秘的な星雲から最新の惑星探査まで、詳細な解説とともにご紹介します。カレンダーからあなたの大切な日の星空を探したり、ランダム表示で未知の宇宙に出会ったり、時空を超えた宇宙の旅をお楽しみください。

🚀 宇宙の記憶・カレンダー検索

🚀 象徴的な写真: APOD第1回 🚀 創造の柱 🚀 スピリット火星着陸 🚀 ハッブル超深宇宙 🚀 地球へようこそ｜ブルー・マーブル 🚀 エンケラドス 🚀 ベテルギウス 🚀 火星着陸 🚀 青い夕焼け 🚀 冥王星のハート 🚀 皆既日食 🚀 アースライズ再構築 🚀 ブラックホール 🚀 ウェッブ初画像 🚀 アポロ11着陸 APOD30周年(2025年6月16日)

翻訳エラー: Exception: 1 日にサービス translate を実行した回数が多すぎます。 NGC 3370: A Sharper View

APOD

✅ Public Domain

Similar in size and grand design to our own Milky Way, spiral galaxy NGC 3370 lies about 100 million light-years away toward the constellation Leo. Recorded here in exquisite detail by the Hubble Space Telescope's Advanced Camera for Surveys, the big, beautiful face-on spiral does steal the show, but the sharp image also reveals an impressive array of background galaxies in the field, strewn across the more distant Universe. Looking within NGC 3370, the image data has proved sharp enough to study individual pulsating stars known as Cepheids which can be used to accurately determine this galaxy's distance. NGC 3370 was chosen for this study because in 1994 the spiral galaxy was also home to a well studied stellar explosion -- a type Ia supernova. Combining the known distance to this standard candle supernova, based on the Cepheid measurements, with observations of supernovae at even greater distances, can reveal the size and expansion rate of the Universe itself.

原文（English）

Similar in size and grand design to our own Milky Way, spiral galaxy NGC 3370 lies about 100 million light-years away toward the constellation Leo. Recorded here in exquisite detail by the Hubble Space Telescope's Advanced Camera for Surveys, the big, beautiful face-on spiral does steal the show, but the sharp image also reveals an impressive array of background galaxies in the field, strewn across the more distant Universe. Looking within NGC 3370, the image data has proved sharp enough to study individual pulsating stars known as Cepheids which can be used to accurately determine this galaxy's distance. NGC 3370 was chosen for this study because in 1994 the spiral galaxy was also home to a well studied stellar explosion -- a type Ia supernova. Combining the known distance to this standard candle supernova, based on the Cepheid measurements, with observations of supernovae at even greater distances, can reveal the size and expansion rate of the Universe itself.

＼この感動を宇宙仲間にシェア／

© NASA / APOD