local standard of rest

noun

1. a frame of reference for a portion of the universe in which the mean motion of nearby stars is zero.

Example Sentences

A predecessor to ‘Oumuamua could have been a craft that deposited small probes into the Earth’s atmosphere without being noticed, because it visited before Pan-STARRS started its operations. Along this imaginative line of reasoning, ‘Oumuamua could have arranged to appear as coming from the neutral local standard of rest, which serves as the local “galactic parking lot,” so that its origin would remain unknown.

From Scientific American

First, the interstellar object discovered in 2017, ‘Oumuamua, was inferred to have a flat shape and seemed to be pushed away from the sun as if it were a lightsail. This “pancake” was tumbling once every eight hours and originated from the rare state of the local standard of rest—which averages over the motions of all the stars in the vicinity of the sun.

From Scientific American

Any nitrogen evaporation would have changed the tumbling period of ‘Oumuamua and caused jitter, well beyond the observed limits. In addition, a nitrogen iceberg would have inherited the motion of its birth star, unlike ‘Oumuamua, which originated in the local standard of rest.

From Scientific American

If the senders of the probes prefer to remain anonymous, they might choose to deposit them in the galactic parking lot, the so-called local standard of rest, which averages over the random motions of all stars in the vicinity of the sun.

From Scientific American

The reported meteor entered the solar system with a speed of 60 kilometers per second relative to the local standard of rest, the frame of reference obtained by averaging the motion of all stars in the vicinity of the sun.

From Scientific American