Yarn
Knit Picks Wool of Andes Spot (100% Peruvian Highland Wool; 137yd / 50g)
MC Midnight Heather 2 (2, 2, 2, 3, 3) ball(s), CC1 Sapphire heather 1 (1, 1, 1, 2, 2) ball(s), CC2 Baltic Heather 1 (1, 1, 1, 2, 2) ball(s), CC3 Thirst Heather 1 (1, 1, 1, 2, 2) ball(s), CC4 Sagebrush1 (1, 1, 1, 2, 2) ball(s), CC5 Dove Heather 1 (1, 1, 1, 2, 2) ball(s), CC6 Green Tea Heather, 1 (1, 1, 2, 2, 2) ball(s), CC7 Pampas Heather1 (1, 1, 2, 2, 2) ball(s), CC8 Grass 1 (1, 1, 2, 2, 2) ball(s), CC9 Forest Heather 1 (1, 1, 2, 2, 2) ball(s), and CC10 Aurora1 (1, 1, 1, 1, 1) ball.

Maximum yarn usage of single section, which is 12 rows of body and each sleeve in single colored yarn:
50 (54, 60, 65, 75, 90) yard / 46 (50, 55, 60, 69, 82) m.

Needles
US size 6 / 4.0mm for main stitch, US size 4 / 3.5mm for 2X2 ribbing.

Notions
Scrap (waste) yarn, tapestry needle stitch markers.

Gauge
22sts and 27 rounds in St sts over 4” /10cm on larger needles (US size 6 / 4.0mm).

aurora is a seamless top down pullover used simple color work technique inspired from northern light. Require total 11 colors in this design. But it’s easy to create your own aurora yourself if you keep in mind the maximum yarn usage in single section. Switch colors as follow:
MC-CC1-CC2-CC3-CC4-CC5-CC6-CC7-CC8-CC9-CC10-CC9-CC8-CC7-CC6-CC5-CC4-CC3-CC2-CC1-MC.
If gauge is totally different, choice a larger or smaller size for CO. But follow the lengths of your desire size like armhole depth or yoke depth. All increase or decrease are set-in solid section.