Interstellar visitor

[Kenzo1]

Avi Loeb is calling for James Webb to investigate the object to see if it exhibits any none gravitational speed changes and measure its luminosity , seems this time they're looking at Mars and Jupiter.

An extrapolation of A11pl3Z’s orbit implies that its closest distance to Earth would be 2.4 times the Earth-Sun separation (=astronomical unit, abbreviated as AU) on December 17, 2025 and that it will pass much closer to Jupiter around March 10, 2026. This is because the Earth happens to be on the other side of its orbit around the Sun when A11pl3Z gets close to the Sun.
Its closest distance from the Sun is expected to be about 1.4 AU on October 27, 2025, three weeks after its passage within 0.4 AU from Mars. The current distances of A11pl3Z are about 3.8 AU from Earth and 4.8 AU from the Sun as of July 2, 2025.

Observing A11pl3Z also with the Webb telescope, located a million miles away from an Earth-based telescope, will allow us to detect via parallax any non-gravitational acceleration to exquisite precision, as shown in a recent paper I wrote with my student Sriram Elango.

The Webb telescope can also measure the emitted infrared flux and surface temperature of A11pl3Z — which when combined with its known parallax distance, can be used to infer its surface area. If the object is tumbling, it would be possible to use the evolution of the surface area projected along the line-of-sight in order to map the shape of the object in three dimensions.

The known size and shape and the reflected flux of sunlight from the object will allow us to infer its surface albedo (reflection coefficient) for sunlight. We did not have direct measurements of the area, surface temperature or albedo for `Oumuamua.
https://avi-loeb.medium.com/welcoming-a-...01f1cb4fbc

Picture of ʻOumuamua 2.

Hopefully no change that thing comes near Earth , it would be too big boom .