2021-04-20

New milestone: “New Horizons” took photos of “Voyager 1” 18 billion kilometers away

By yqqlm yqqlm

New milestone: “New Horizons” took photos of “Voyager 1” 18 billion kilometers away

“New Horizons” launched in 2006, it The main task is to fly close to Pluto. In 2015, it achieved some amazing results. Then, in early 2019, it flew over the Kuiper belt object Arrokoth at close range. As astronomers searched for other possible flying targets in the Kuiper Belt, the probe continued to rush out of the solar system.

New milestone: “New Horizons” took photos of “Voyager 1” 18 billion kilometers away(1)

April 17, “New Horizons “We have reached an important milestone-flying to a position 50 astronomical units (AU) away from the sun. This is 50 times the distance from the earth to the sun (about 7.5 billion kilometers). This is the fifth spacecraft to fly so far after the “Voyager 1” and “Voyager 2”, “Pioneer 10” and “Pioneer 11”.

In order to celebrate this moment, and to let this little detector do something there, New Horizons took a photo of Voyager 1. “Voyager 1” is currently the man-made object farthest from the earth in the universe-at a distance of more than 152 astronomical units, it is the first spacecraft to enter interstellar space.

New milestone: “New Horizons” took photos of “Voyager 1” 18 billion kilometers away(2)

In this photo, two universes The spacecraft are 18 billion kilometers apart. Therefore, in fact, you cannot see Voyager 1 in the star field, but NASA accurately knows its location through radio tracking and marked its location with a yellow circle.

Although New Horizons will never catch up with Voyager 1, it will join interstellar space sometime in the 1940s. At the same time, NASA is using the unique perspective of this spacecraft to measure the “blackness” of the sky and the phenomenon of stellar parallax.