Evening twilight observing challenge! Mercury ‘might’ be visible in the evening twilight tonight below the Moon. https://t.co/lzdhaSSHd9
Evening twilight observing challenge! Mercury ‘might’ be visible in the evening twilight tonight below the Moon. https://t.co/lzdhaSSHd9
RT @Nightskyonline: Evening twilight observing challenge! Mercury ‘might’ be visible in the evening twilight tonight below the Moon. https:…