DrakeEQ vs StarParade

Are we alone? We created DrakeEQ to provide a visually elegant answer to the extraterrestrial question, using the intellectually elegant Drake Equation. We coupled this fun calculator with beautiful, 3D galaxies in motion! To help us celebrate 15 years since the first release in 2009, DrakeEQ 7.0.0 now features our Galaxene Galaxy Engine! Use this fun simulator to graphically quantify the number of advanced extraterrestrial civilizations in our Milky Way Galaxy. Travel the Universe and explore infinitely variable galaxies! Just pinch anywhere and tap the targeting indicator. Perform thought experiments with this unique visual tool; it’s both educational and entertaining. Learn about the famous Drake Equation through direct manipulation of its 7 parameters with DrakeEQ. The Drake Equation states that: N = the number of civilizations in our galaxy with which communication might be possible where: R* = the average rate of star formation in our galaxy fp = the fraction of those stars that have planets ne = the average number of planets that can potentially support life per star that has planets fℓ = the fraction of the above that actually go on to develop life at some point fi = the fraction of the above that actually go on to develop intelligent life fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space L = the length of time such civilizations release detectable signals into space. Drake Equation. Wikipedia, The Free Encyclopedia.

StarParade は、スマートフォンのセンサーを活用した AR 星空観察アプリです。 端末を夜空にかざすだけで、その方向にある星や星座をリアルタイムで画面に表示します。難しい操作は一切不要。起動して、空にかざすだけ。 【主な機能】 - 9,000以上の恒星データ（Bright Star Catalogue）を内蔵 - 88星座の線画と名称を表示 - 惑星（水星〜土星）のリアルタイム位置表示 - 星の名前・等級・距離・スペクトル型などの詳細情報 - 星名・星座名で検索し、矢印ガイドでナビゲーション - 時刻スライダーで過去・未来の星空をシミュレーション - 等級フィルターで表示する星の数を調整 - 暗順応を守るナイトモード（赤色表示） 【完全オフライン動作】 すべての星表データと計算ロジックをアプリに内蔵。インターネット接続が一切不要で、山岳地帯・離島・キャンプ場・飛行機内でも使えます。 【料金プラン】 - Free: 無料で全機能が使えます（広告あり） - Pro: ¥700の買い切りで広告を非表示に 美しいダークテーマのUIで、夜間の星空観察を邪魔しません。