When Does Comet 19P/Borrelly Rise and Set? Precise Rise and Set Times
Comet 19P/Borrelly is circumpolar and transits at 15:38 UTC (altitude: 81.5°)
The rise and set times are defined as the time at which the upper limb of Comet 19P/Borrelly touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.