(Author K. Jardine, Date 02/05/2021)
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This file contains some data from the catalog described in "The 10 pc sample in
the Gaia era", Reylé, Jardine et al, Astronomy & Astrophysics (2021) and adds
some additional and roughly calculated values not appropriate for scientific use
but which may be useful for visualization.

Additional values:

*HIP_G*

G magnitude equivalent calculated from Hipparcos B-V and magnitude values
when available using the formula

g = -0.03704 + (-0.3915)*bv + (0.01855)*bv*bv +(-0.03239)*bv*bv*bv + hpmag

*GLON*

Galactic longitude

*GLAT*

Galactic latitude

*DISTANCE*

Rough distance calculated using the reciprocal of the parallax. This does
not take into account the parallax error and is almost certainly not
the most accurate possible value. Will replace it when better derived
values become available.

*MG*

The absolute magnitude derived from the G magnitude and the distance
estimate. This uses the G field when available, followed by the HIP_G
value as computed using the formula given above, or the G_ESTIMATE field
if the other two values are not available.

*XG*

The x value of the galactic cartesian coordinates.

*YG*

The y value of the galactic cartesian coordinates.

*ZG*

The z value of the galactic cartesian coordinates.