¿Por qué en la foto de la Tierra de la Artemis II aparecen estrellas? 🌍✨
Why Do New Earth Photos from Artemis 2 Show Stars While Apollo and ISS Photos Do Not?
Understanding the Differences in Photography Techniques
- The new photo of Earth from Artemis 2 shows stars because it captures the planet at night, with the Sun behind it, providing minimal illumination.
- Astronaut Raid Weseman used a long exposure photograph to gather more light, allowing for details like the reflection from a full moon and visibility of stars such as Venus.
- In contrast, photos taken during Apollo missions or from the ISS show Earth illuminated by sunlight, requiring shorter exposure times to avoid overexposure or "burning" out details.
- Long exposure photography is also relevant when photographing bright objects like the full moon; without it, images would appear as featureless white spheres.
- This technique highlights phenomena such as auroras borealis and australis that are otherwise not visible in standard photographs taken under bright conditions.