The Aditya-L1 spacecraft, launched by ISRO to study the Sun, takes about 4 months (approximately 127 days) to reach the Sun-Earth Lagrange point L1, which is about 1.5 million kilometers from Earth towards the Sun. It does not actually land on or get closer to the Sun but stays at this point to continuously observe the Sun's outer atmosphere.
If asking more generally about travel time to the Sun itself from Earth, light takes about 8 minutes and 20 seconds to travel the approximately 150 million kilometers distance from the Sun to Earth. A spacecraft like Aditya-L1 or similar solar missions take a few months to reach their orbital locations near the Sun due to trajectory and propulsion constraints.
In summary:
- Light travel time from Sun to Earth: about 8 minutes 20 seconds
- Aditya-L1 mission travel time to Sun-Earth L1 point: about 4 months (127 days)
- The spacecraft does not reach the Sun's surface but stays at a stable point between Earth and Sun for observation.
