Maiaについて
説明
Maia, 20 Tauri, is a B6.5 III giant about 399 light-years away and one of the brightest stars of the Pleiades open cluster (M45). At magnitude 3.87 it is the fourth-brightest Pleiad. Maia has a mass of about 5 solar masses and rotates slowly for a B-type star. Like several of its cluster siblings, Maia is embedded in a reflection nebula — a dusty remnant lit up by the star's blue light, cataloged as NGC 1432 and also known as the Maia Nebula.
観測のコツ
Maia is one of the "Seven Sisters" — readily visible to the naked eye as one of the defining points of the Pleiades asterism. In a 4-inch or larger telescope under dark skies, the nebulosity surrounding Maia becomes visible as a soft blue glow enveloping the star. Best observed October through March.
歴史
Maia is named for one of the Pleiades of Greek mythology — the eldest of the Seven Sisters, daughters of Atlas and Pleione. The name is one of the oldest continuously used star-names in Western astronomy, traceable to Homer and Hesiod. The reflection-nebula association was first photographed at Paris Observatory in 1885.
豆知識
The Maia Nebula (NGC 1432) is part of the larger interstellar dust cloud that the Pleiades is currently passing through — the nebulosity is not cluster-native but a chance encounter. The star also gives its name to the "Maia variables," a now-defunct variable-star class originally proposed in the 1950s but later shown not to be a distinct population.
観測
1物理的性質
3見つけやすさ
| 機材 | ボートル3 | ボートル4 | ボートル5 |
|---|---|---|---|
| 肉眼 肉眼 | 容易 | 普通+ | 普通+ |
| 50mmファインダー 50mmファインダー | 容易 | 容易 | 容易 |
| 150mm望遠鏡 150mm望遠鏡 | 容易 | 容易 | 容易 |
ボートル3＝田舎 · 4＝郊外 · 5＝住宅地
5サーベイ画像
サーベイ画像を読み込み中…
探究
7
サイズ比較
8
恒星を比較
9
スペクトル分類
11
恒星の進化
12
黒体放射スペクトル
13
恒星吸収スペクトル
スペクトル型に基づくシミュレーション吸収スペクトル。線にマウスを合わせると元素を識別できます。
14
恒星核融合
発見
15恒星メモ
16
光の旅タイムマシン
17
相対論的旅行
近くの天体
数度以内にある他の対象 — 望遠鏡を少し動かして探索を続けましょう。
可視性スコアは150 mmニュートン・ボートル4を前提としています。
Nightbase を探す
関連する知識・ツール・物語 — 観測計画は不要です。
