LP 658-2

LP 658-2 is a degenerate star in the constellation of Orion, the single known object in its system. It has an apparent [visual magnitude] of approximately 14.488.

Distance

According to a 2009 paper, it is the eighth closest known white dwarf to the Sun. Its trigonometric parallax from the CTIOPI 0.9 m telescope program, published in 2009, is 0.15613 ± 0.00084 arcsec, corresponding to a distance 6.40 ± 0.03 pc, or 20.89 ± 0.11 ly. Also, previous less precise parallax measurements of LP 658-2 present in YPC and among results of CTIOPI 1.5 m telescope program:
LP 658-2 parallax measurements

Source	Paper	Parallax, mas	Distance, pc	Distance, ly	Ref.
YPC	van Altena et al., 1995	155.0 ± 2.1	6.45 ± 0.09	21.04 ± 0.29
CTIOPI 1.5 m	TSN-14	156.93 ± 2.67	6.37 ± 0.11	20.78 ± 0.35
CTIOPI 0.9 m	TSN-21	156.13 ± 0.84	6.40 ± 0.03	20.89 ± 0.11

Physical parameters

There are two sets of published physical parameters of LP 658-2, significantly differing from each other: one from and, the other from.

Color

Despite it being classified as a "white" dwarf, it appears yellowish white rather than white, due to temperature, cooler than the Sun's and comparable with that of a K-type [main sequence star].