Taka ciekawostka. Merkury też ma warkocz - widoczny w paśmie sodu.
What apparently looks like a comet, it's just Mercury with its sodium tail. I long waited for favorable conditions, but bad weather disappointed me the most of the times. It took a seven and a half minutes exposure (guided on Mercury with a crosshair eyepiece, that's why stars are trailed) to make the sodium tail visible. Not many people know about this almost unique feature of Mercury and I thought it could be interesting. This is one of three successful attempts. This is the equipment I used: