Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Kepler's First Law of Planetary Motion01:10

Kepler's First Law of Planetary Motion

5.9K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. He formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe.
Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
On the other hand,...
5.9K
Kepler's Second Law of Planetary Motion01:29

Kepler's Second Law of Planetary Motion

5.6K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. His first law states that all planets orbit the Sun in an elliptical orbit, with the Sun at one of the ellipse's foci. Therefore, the distance of a planet from the Sun varies throughout its revolution around the Sun.
While in an elliptical orbit, the total energy of the planet is conserved. Therefore, the planet slows down when it is at apogee and...
5.6K
Kepler's Third Law of Planetary Motion01:18

Kepler's Third Law of Planetary Motion

4.5K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. In 1909, he formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe. However, in 1918, he published his third law of planetary motion, which gives a precise mathematical relationship between a planet's average distance from the Sun and the amount of time it takes to revolve around the Sun. It...
4.5K
Circular Orbits and Critical Velocity for Satellites01:16

Circular Orbits and Critical Velocity for Satellites

5.6K
The Moon orbits around the Earth. In turn, the Earth (and other planets) orbit the Sun. The space directly above our atmosphere is filled with artificial satellites in orbit. One can examine the circular orbit, the simplest kind of orbit, to understand the relationship between the speed and the period of planets and satellites with respect to their positions and the bodies that they orbit.
Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...
5.6K
Acceleration due to Gravity on Other Planets01:24

Acceleration due to Gravity on Other Planets

5.1K
The gravitational acceleration of an object near the Earth's surface is called the acceleration due to gravity. It can be measured by conducting simple experiments on Earth. However, such an experiment is impossible to conduct on the surface of other planets.
Astronomical observations are thus used to measure the acceleration due to gravity on other planets. This can be determined by observing the effect of a planet's gravity on objects close to it. The crucial factor that helps in this...
5.1K
Conditions on Early Earth02:06

Conditions on Early Earth

102.6K
Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen into the primordial atmosphere. However, organisms with the characteristics of life were not initially present on earth. Scientists have used experimentation to determine how organisms evolved that could grow, reproduce, and maintain an internal environment.
102.6K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

A high-resolution, US-scale digital similar of interacting livestock, wild birds, and human ecosystems for multihost epidemic spread.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Lipidomic Analysis of Human Plasma and Hippocampus Across Alzheimer's Progression and Preclinical 5xFAD Mouse Model.

Molecular neurobiology·2026
Same author

Inventory and risk characterization of urban runoff pollutants in Europe.

Water research·2026
Same author

Machine Learning-Assisted LIBS Identification of Epoxy Resins in CFRP for Recycling Processes.

Materials (Basel, Switzerland)·2026
Same author

A universal brown dwarf desert formed between planets and stars.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

A Systematic Literature Review of the Epidemiological, Diagnostic Workup, Humanistic, and Economic Burden of Alzheimer's Disease in Spain.

Cureus·2026

関連する実験動画

Updated: Mar 15, 2026

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
06:48

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves

Published on: May 10, 2020

4.0K

プロキシマ・センタウリ周りの温帯軌道にある地上の惑星候補

Guillem Anglada-Escudé1, Pedro J Amado2, John Barnes3

  • 1School of Physics and Astronomy, Queen Mary University of London, 327 Mile End Road, London E1 4NS, UK.

Nature
|August 26, 2016
PubMed
まとめ

惑星系外惑星を発見しました 私たちの最も近い隣の星である プラクシマ・センタウリです この潜在的に居住可能な惑星,プロキシマ bは,少なくとも地球の1.3倍の質量を持ち,恒星の居住可能なゾーン内を回っています.

さらに関連する動画

Simulation of the Planetary Interior Differentiation Processes in the Laboratory
06:04

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 15, 2013

12.1K
Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.1K

関連する実験動画

Last Updated: Mar 15, 2026

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
06:48

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves

Published on: May 10, 2020

4.0K
Simulation of the Planetary Interior Differentiation Processes in the Laboratory
06:04

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 15, 2013

12.1K
Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.1K

科学分野:

  • 天文学と天体物理学
  • 外惑星科学
  • 恒星物理学

背景:

  • 太陽に最も近い赤色矮星であるプロキシマ・センタウリは 広く研究されています
  • プロキシマ・センタウリのような 低質量恒星は一般的で 外惑星探査の重要なターゲットです
  • 近隣の恒星の周りの惑星系を理解することは,比較惑星学にとって極めて重要です.

研究 の 目的:

  • プロキシマ・センタウリの周りを回っている系外惑星を検出し特徴づけます
  • 新しく発見された惑星の軌道パラメータと最小質量を 決定する
  • 惑星の平衡温度に基づいて 居住の可能性を評価する

主な方法:

  • 観測データを活用して 惑星の存在を検出しました
  • 軌道周期と半主要な軸を推論するために,放射速度や通過データを分析した.
  • 外惑星の軌道特性を元に 最小質量を計算した.

主要な成果:

  • 小惑星の発見,プロキシマ・b,プロキシマ・センタウリの周りを回っている.
  • この系外惑星の最小質量は,地球質量約1. 3です.
  • プロキシマ bは,液体の水に適した均衡温度で,0.05天文単位の距離で11.2日ごとにその星を回っています.

結論:

  • 地球に最も近い系外惑星です
  • この惑星が 居住可能領域にあることが 表面液体の水が存在する可能性を示唆しています
  • この発見は 近くの低質量恒星の周りに 潜在的に居住可能な惑星を発見する可能性を 強調しています