|Sundog ~ Imaged by Tamás Ábrahám above a ridge of the Nyakas-hill at Zsámbék, Hungary on 10th March. ©Tamás Ábrahám, shown with permission.
Sundogs and 22-degree halo fragments are the halos seen most often. Which of the two wins the race for appearances depends on locality. A hundred miles or so can alter their relative frequency.
Not all are bright and obvious. Many will be a transient smudge of colour. To find the less obvious ones measure distance from the sun with an outstretched hand held at arms length. With the thumb over the sun a sundog, if present, will be at the same altitude and near the tip of the little finger.