SUMMARY
In the discussion, participants clarify that while certain galaxies are visible to the naked eye, such as the Milky Way, Large Magellanic Cloud (LMC), Small Magellanic Cloud (SMC), Andromeda Galaxy (M32), and occasionally the Triangulum Galaxy (M33), most galaxies require telescopes or long-exposure photography for visibility. The visibility of these galaxies is not influenced by Earth's atmosphere. Additionally, the blue halo of Earth's atmosphere can be observed from space, particularly from the International Space Station (ISS) at altitudes between 402–424 km, due to the scattering of blue light by atmospheric gases.
PREREQUISITES
- Understanding of basic astronomy concepts, including galaxies and their visibility.
- Familiarity with atmospheric science, particularly light scattering.
- Knowledge of photography techniques, especially long-exposure photography.
- Awareness of space observation platforms, such as the International Space Station (ISS).
NEXT STEPS
- Research the visibility of galaxies with the naked eye and the factors affecting it.
- Learn about light scattering in Earth's atmosphere and its effects on color perception.
- Explore advanced photography techniques for capturing celestial bodies, including long-exposure methods.
- Investigate the role of space observation platforms like the ISS in studying Earth's atmosphere.
USEFUL FOR
Astronomy enthusiasts, photographers interested in astrophotography, educators in atmospheric science, and anyone curious about the visibility of celestial objects from Earth and space.