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Updated: Jan 9, 2026

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巨大 な 衛星 の 群れ は 宇宙 の 天文学 を 脅かす
Alejandro S Borlaff1,2, Pamela M Marcum3, Steve B Howell3
1Space Science and Astrobiology Division, NASA Ames Research Center, Moffett Field, CA, USA. a.s.borlaff@nasa.gov.
Nature
|December 3, 2025
まとめ
衛星の星座は天文観測に重大な脅威をもたらします 将来の打ち上げは ハッブル宇宙望遠鏡の画像の3分の1以上と 他の宇宙望遠鏡の ほぼすべての曝露を汚染する可能性があります
科学分野:
- 天文学と天体物理学
- 宇宙科学
- 光学工学
背景:
- 衛星の星座の急速な拡大は 天文観測の懸念を提起しています
- 衛星からの光線は 地上望遠鏡と宇宙望遠鏡の両方に影響します
- 現在の衛星数は 計画されている将来の打ち上げのほんの一部です
研究 の 目的:
- 国際低地球軌道望遠鏡の 汚染レベルを予測する
- 電気通信産業のコンステレーションが将来の観測に与える影響を評価する.
- 衛星による光汚染の軽減戦略を提案する.
主な方法:
- 提案された星座データに基づく衛星トライル汚染のモデリング
- ハッブル,SPHEREx,ARRAKIHS,Xuntianを含む特定の宇宙望遠鏡への影響予測
- 影響を受けた画像のパーセンテージとエクスポージャー毎の経路を計算します.
主要な成果:
- ハッブル宇宙望遠鏡の画像の3分の1が 汚染されることがあります 提案された星座が完成した場合です
- SPHEREx,ARRAKIHS,およびXuntian宇宙望遠鏡は 96%以上の曝露汚染を経験する可能性があります.
- 表面の平均明るさは19 ± 2マグアルク秒−2である.
結論:
- 衛星の星座からの光汚染は 宇宙望遠鏡の操作に 増大する脅威をもたらします
- 衛星群が天文学研究に与える影響を最小限に抑えるための行動が緊急に必要である.
- 衛星による光汚染を予測し モデル化し 修正する方法を開発することが重要です
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