Fig. 2
From: A role for orbital eccentricity in Earth’s seasonal climate
Comparison between the tilt and distance effect on incoming solar radiation (insolation). a Insolation at 45°N; b insolation at the equator, and c globally averaged insolation. The black solid line is the total insolation received, and the red dashed line is the insolation with e = 0 (tilt contribution); the difference is the distance contribution, shown in the blue dashed line. Insolation calculated using the code from Huybers and Eisenmann (2006), using pre-industrial orbital parameters stated in Erb et al. (2015): e = 0.0167, obliquity = 23.439°, and longitude of perihelion = 102.932°