We can around divide The celebrities during the Galaxy into two classes. Previous stars with several major features are called population II stars and so are located in the halo and in globular clusters.
Large clouds of gasoline and cosmic dust drift concerning the stars, forming stellar nurseries the place new suns are born. Invisible to our eyes but dominating its mass is dim subject—a mysterious substance that can't be noticed or touched but whose gravity binds the galaxy together, stopping its stars from traveling aside.
The spiral-shaped Milky Way belongs to the initial variety; if you could potentially see it from your top (or the bottom), it will appear to be a spinning pinwheel.
Long term telescopes and missions promise to expose much more. The James Webb House Telescope will peer into dusty star-forming areas, whilst radio arrays will map the galaxy’s structure in detail.
The Milky Way is often a galaxy, a colossal group of stars, dust, and gas which can be all held jointly by gravity. But what’s more incredible is simply how monumental it really is. Our Milky Way is about 100,000 gentle-many years in diameter!
地球 ⊆ 外太空 ⊆ 月球軌道 ⊆ 地球軌道 ⊆ 內太陽系 ⊆ 外太陽系 ⊆ 柯伊伯帶 ⊆ 太陽圈 ⊆ 離散盤 ⊆ 奧爾特雲 ⊆ 太陽系 ⊆ 本地星際雲 ⊆ 本地泡 ⊆ 古爾德帶 ⊆ 獵戶臂 ⊆ 太陽系公轉軌道 ⊆ 銀河系 ⊆ 銀河系次星系群 ⊆ 本星系群 ⊆ 本星系板 ⊆ 室女超星系團 ⊆ 拉尼亞凱亞超星系團 ⊆ 雙魚-鯨魚座超星系團複合體 ⊆ 可觀測宇宙 ⊆ 宇宙
The location is known to emit X-rays because of feeding within the gasoline, or due to friction in the disk as temperatures soar to around 18 million levels Fahrenheit (10 million levels Celsius).
Outside of the foremost spiral arms may be the Monoceros Ring (or Outer Ring), a ring of gasoline and stars torn from other galaxies billions of decades in the past. Nevertheless, a number of members on the scientific Local community not too long ago restated their place affirming the Monoceros framework is absolutely nothing over an more than-density produced by the flared and warped thick disk of your Milky Way.[229] The construction of your Milky Way's disk is warped together an "S" curve.[230]
銀河系 → 銀河系亞群 → 本星系群 → 本星系板 → 室女超星系團 → 拉尼亞凱亞超星系團 → 雙魚-鯨魚座超星系團複合體 → 可觀測宇宙 → 宇宙（箭號「→」表示「屬於」或「包含於」。）
Stars inside the disk are dispersed in clouds of stellar dust and fuel. When we glance up on the sky during the night time, It is really the edge-on see mawinbet of the disk extending toward the galactic Heart that normally takes our breath absent.
Considerably in the mass on the Milky Way seems to be dark make any difference, an unidentified and invisible method of issue that interacts gravitationally with normal matter. A darkish make a difference halo is conjectured to spread out rather uniformly to your distance past 1 hundred kiloparsecs (kpc) from the Galactic Middle.
More along, you'll face huge clusters of hot, youthful stars. Some might be a huge selection of situations additional enormous compared to Sun, shining with fierce brilliance nonetheless destined to die in mere a lot of several years—cosmic fireflies in comparison to the Sun’s constant 10-billion-12 months life.
Though this sounds catastrophic, person stars will Nearly never ever collide mainly because of the huge distances concerning them. As an alternative, gravitational forces will warp and reshape the two galaxies, triggering waves of star formation.
Inside of All those arms, stars, dust and gas are more tightly packed than in the greater loosely crammed areas of the galactic disk, which enhanced density triggers much more intense star development. Therefore, stars during the galactic disk tend to be Substantially younger than Individuals from the bulge.