In Evidence
Using historical cloud coverage data we suggest the locations that could provide the better chances to have clear skies on April 8, 2024 to observe the eclipse. Read more...
Ephemeris Calculator
Compute Comet C/2021 A4 (NEOWISE) ephemerides for any date and time between 01 Jan 1970 and 01 Jan 1970 and display the predicted position in an interactive sky map.
When Does Comet C/2021 A4 (NEOWISE) Rise and Set?
Today's Comet C/2021 A4 (NEOWISE) rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
The rise and set times are defined as the time at which the upper limb of Comet C/2021 A4 (NEOWISE) touches the horizon, taking into account the effect of the atmospheric refraction. Since the atmosphere conditions cannot be modeled precisely, the times reported here should be considered correct with an approximation of a few minutes.