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Hace 5 días · The Milky Way Galaxy takes its name from the Milky Way, the irregular luminous band of stars and gas clouds that stretches across the sky as seen from Earth. How big is the Milky Way Galaxy? The first reliable measurement of the size of the Milky Way Galaxy was made in 1917 by American astronomer Harlow Shapley .
- Star Populations and Movement
Milky Way Galaxy - Star populations and movement: The...
- Structure, Dynamics, Stars
Milky Way Galaxy - Structure, Dynamics, Stars: The first...
- Kepler’s Nova
Kepler’s Nova, one of the few supernovae (violent stellar...
- Andromeda Galaxy
The Andromeda Galaxy is one of the few visible to the...
- Tycho’s Nova
Tycho’s Nova, one of the few recorded supernovas in the...
- Crab Nebula
Crab Nebula, (catalog numbers NGC 1952 and M1), probably the...
- Star Populations and Movement
Hace 5 días · Milky Way Galaxy - Structure, Dynamics, Stars: The first reliable measurement of the size of the Galaxy was made in 1917 by American astronomer Harlow Shapley. He arrived at his size determination by establishing the spatial distribution of globular clusters.
Hace 2 días · Unlike the globular clusters of the Milky Way, which show a relatively low age dispersion, Andromeda Galaxy's globular clusters have a much larger range of ages: from systems as old as the galaxy itself to much younger systems, with ages between a few hundred million years to five billion years.
19 de jun. de 2024 · The Andromeda Galaxy is one of the few visible to the unaided eye, appearing as a milky blur. It is located about 2,480,000 light-years from Earth; its diameter is approximately 200,000 light-years; and it shares various characteristics with the Milky Way system.
26 de jun. de 2024 · Earth orbits the sun at a distance of 150 million kilometres and the sun orbits the centre of the Milky Way. Specifically, we are in the Orion arm, around 26,500 light years from the centre.
27 de jun. de 2024 · A reconstruction of the light profile for the Milky Way from an internal perspective provides an estimate of the Galaxy’s size that can be directly compared to other galaxies.
28 de jun. de 2024 · Peering through the dust and gas that intersperse our Galaxy, astronomers have found that the Milky Way’s core is less dense than originally thought. This resculpting actually makes the Milky...
