Number formatting experiments:
{{Infobox/Line|Mass|0.00 t |
mass=7.1234 0 t 0.0 t 0.00 t 0.000 t 0.0000 t 0.00000 t 0.000000 t
mass=8.2345 0 t 0.0 t 0.00 t 0.000 t 0.0000 t 0.00000 t 0.000000 t
