The comet 128P/Shoemaker-Holt
From Ashburn (click to change), 128P/Shoemaker-Holt is not observable – it will reach its highest point in the sky during daytime and is no higher than 17° above the horizon at dawn.
Object Type Comet
|Right Ascension:||11h42m |
|Semi-major axis:||4.50 AU|
|Longitude ascending node:||214.29°|
|Argument of perihelion:||210.51°|
|Epoch of elements:||06 October 2018|
|Mean Anomaly at epoch:||65.58°|
|Orbital period:||9.54 years|
The MPC's magnitude estimates are updated rather rarely, and so we prefer to estimate the brightness of comets on the basis of amateur observations. No amateur observations of are available, however, and consequently the magnitude estimates shown here may be unreliable.