This video shows the trajectory of the Comet C/2023 H2 (Lemmon) against the background of stars when observed from Earth during the time interval from June 1 to December 31, 2023.
This comet was discovered on April 23, 2023. It is long-period one and makes a complete revolution around the Sun in about 3,900 years. Comet C/2023 H2 (Lemmon) shines with a rather dim reflected light and does not stand out particularly among many other known comets. However, on the night of November 10-11, it will pass only 29 million km from Earth against the background of the constellation Hercules. Comets pass so close to the Earth very rarely!
Due to the fact that the comet will fly past the Earth at a speed of 63 km/s, it will shift very quickly against the background of stars. Only a little more than an hour will be required for the comet to shift by the size of the lunar disk. By the way, the Moon and comet C/2023 H2 (Lemmon) will “meet” in the constellation of Capricornus on November 19.
Unfortunately, even such a close passage near the Earth will not make it possible to observe the comet with the naked eye. At best, it will be possible to see it through powerful binoculars.
Modeling and rendering were performed by author of AstroTubo channel using own software. Visualization of comet and its tail is also invented and implemented by the author of AstroTubo channel. The calculations took into account the mutual influence of the Sun, all the planets of the Solar System, the Moon and the comet on each other. Relativistic effects were also taken into account in the calculation. Non-gravitational effects associated with the comet nucleus matter evaporation were not taken into account.
The track Ambient Dream by malictusmusic sounds in this video. This track was not changed.
Attribution 4.0 International (CC BY 4.0 DEED) license.