Ross 248

Ross 248 (HH Andromedae) is a small star located approximately 10.30 light-years (3.16 parsecs) from Earth in the northern constellation of Andromeda. Despite its proximity to the Earth, this star is too dim to be seen with the naked eye.

This star has about 12% of the Sun’s mass and 16% of the Sun’s radius, but only 0.2% of the Sun’s luminosity. It has a stellar classification of M6 V, which indicates it is a type of main sequence star known as a red dwarf. This is a flare star that occasionally increases in luminosity. With high probability there appears to be a long-term cycle of variability with a period of 4.2 years. This variability causes the star to range in visual magnitude from 12.23 to 12.34.

The trajectory of Ross 248 will bring it closer to the Solar System in the future. In about 33,000 years Ross 248 will be the closest star to the Sun, approaching within a minimum distance of 3.024 light-years (0.927 parsecs). However, it will recede thereafter and will again be further from the Sun than Proxima Centauri 42,000 years from now. The spacecraft Voyager 2 is traveling on a path headed roughly in the direction of Ross 248, and is expected to come within 1.76 light-years (0.54 parsecs) of the star in 40,176 years.

Ross 248 has three planets and four asteroid belts within it. The innermost planet is an iron planet. The middle planet is a Mini-Neptune. The Third is a methane ice planet. And asteroid belt separates each planet. While not particularly human-friendly, the system became the home of the PACS.

Ross 248

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