The comet 260P/McNaught
From Fairfield , 260P/McNaught is visible all night. It will become visible around 17:40 (EST) as the dusk sky fades, 40° above your north-eastern horizon. It will then reach its highest point in the sky at 22:27, 80° above your northern horizon. It will continue to be observable until around 05:34, when it sinks below 22° above your north-western horizon.
Object Type Comet
|Magnitude:||12.54 (V) |
|Absolute mag (H):||12.30 |
|Slope parameter (n):||2.00 |
|Right ascension:||02h25m |
5.71 lightmin 
|Semi-major axis:||3.62 AU|
|Longitude ascending node:||349.36°|
|Argument of perihelion:||18.38°|
|Epoch of elements:||14 May 2019|
|Mean Anomaly at epoch:||342.99°|
|Orbital period:||6.89 years|
Where possible, the brightnesses of comets are estimated from absolute magnitude values computed by the BAA Comet Section, based on the observations they receive. We prefer these to the Minor Planet Center's own magnitude estimates, since the latter are less often updated. Nonetheless, comets are intrinsically unpredictable objects, and magnitude estimates must always be taken with a pinch of salt.