'Oumuamua

[Roger]

The problem with any acceleration caused by the nearness of the sun is that acceleration would occur in both directions not just one, as it approaches the sun and as it moves away from the sun. Since the acceleration is appreciable enough to be detected by observation then any "deceleration' as it approached the sun would have been noted as such, not in just one direction.

If 'Oumuamua's acceleration were solely due to solar influence, such as radiation pressure or sublimation, we would expect to see effects during both its approach and departure from the Sun. In the case of typical cometary activity, for instance, outgassing would be observed as the comet approaches the Sun and heats up, causing sublimation of ices. This outgassing can create a thrust that slows down the comet (a form of deceleration) as it approaches perihelion (the closest point to the Sun in its orbit). After passing perihelion, continued outgassing can then contribute to acceleration away from the Sun.

However, in the case of 'Oumuamua:

Unusual Acceleration Pattern: The observed acceleration of 'Oumuamua was noted primarily as it moved away from the Sun, rather than as it approached. This is atypical for natural objects like comets, which exhibit outgassing-induced changes in velocity both when approaching and leaving the Sun.

Lack of Visible Cometary Activity: 'Oumuamua did not display visible signs of cometary activity, such as a coma or tail, which are indicative of outgassing. This absence makes the typical comet-like outgassing explanation problematic.

Possible Explanations: The explanations that have been proposed to account for this one-sided acceleration include:

The radiation pressure theory, which suggests that 'Oumuamua might be a very thin object (like a light sail) experiencing significant acceleration from sunlight. This model would not necessarily involve deceleration upon approach.
The "hydrogen iceberg" or "nitrogen iceberg" theories, where the sublimation of such ices might not be visible from Earth and could have peculiar dynamics depending on the object's composition and structure.

In conclusion, the lack of observed deceleration as 'Oumuamua approached the Sun and the peculiar pattern of its acceleration upon departure remain intriguing and somewhat mysterious aspects of its behavior. These factors contribute to the ongoing debate and investigation into the nature of this interstellar object; was it a natural object or an artificial object?

[ChatGPT]

The problem with any acceleration caused by the nearness of the sun is that acceleration would occur in both directions not just one, as it approaches the sun and as it moves away from the sun. Since the acceleration is appreciable enough to be detected by observation then any "deceleration' as it approached the sun would have been noted as such, not in just one direction.

If 'Oumuamua's acceleration were solely due to solar influence, such as radiation pressure or sublimation, we would expect to see effects during both its approach and departure from the Sun. In the case of typical cometary activity, for instance, outgassing would be observed as the comet approaches the Sun and heats up, causing sublimation of ices. This outgassing can create a thrust that slows down the comet (a form of deceleration) as it approaches perihelion (the closest point to the Sun in its orbit). After passing perihelion, continued outgassing can then contribute to acceleration away from the Sun.

However, in the case of 'Oumuamua:

Unusual Acceleration Pattern: The observed acceleration of 'Oumuamua was noted primarily as it moved away from the Sun, rather than as it approached. This is atypical for natural objects like comets, which exhibit outgassing-induced changes in velocity both when approaching and leaving the Sun.

Lack of Visible Cometary Activity: 'Oumuamua did not display visible signs of cometary activity, such as a coma or tail, which are indicative of outgassing. This absence makes the typical comet-like outgassing explanation problematic.

Possible Explanations: The explanations that have been proposed to account for this one-sided acceleration include:

The radiation pressure theory, which suggests that 'Oumuamua might be a very thin object (like a light sail) experiencing significant acceleration from sunlight. This model would not necessarily involve deceleration upon approach.
The "hydrogen iceberg" or "nitrogen iceberg" theories, where the sublimation of such ices might not be visible from Earth and could have peculiar dynamics depending on the object's composition and structure.

In conclusion, the lack of observed deceleration as 'Oumuamua approached the Sun and the peculiar pattern of its acceleration upon departure remain intriguing and somewhat mysterious aspects of its behavior. These factors contribute to the ongoing debate and investigation into the nature of this interstellar object; was it a natural object or an artificial object?

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