Horizon view
Horizon from Challis A
77.2742° N, 1.9763° E · cell 23XFU
- Highest horizon point
- Challis A: 4.4° above the horizontal, 16.1 km away at azimuth 163°.
- Farthest visible point
- 46.4 km away at azimuth 244°, 1.0° from the horizontal.
- Observer
- Eye 2 m above the ground, which is 768 m below the 1,737.4 km reference sphere.
- Sun at the rendered time
- The Sun is above the local horizon: 9.0° high at azimuth 144°, 5.4° above the skyline there. At 2026-10-22 17:57:50 UTC, when this page was served.
- Resolution
- Terrain resolution: about 1.9 km, the global LOLA terrain tier of 16 pixels per degree; relief smaller than that, near or far, is smoothed, and the model does not include boulders or other surface hazards.
Vertical scale exaggerated 5x (horizontal 4 px per degree). Eye 2 m above the ground.Scroll sideways to turn; the middle faces 163°.
The Sun is above the local horizon: 9.0° high at azimuth 144°, 5.4° above the skyline there. At 2026-10-22 17:57:50 UTC.
Terrain resolution: about 1.9 km, the global LOLA terrain tier of 16 pixels per degree; relief smaller than that, near or far, is smoothed, and the model does not include boulders or other surface hazards. How the horizon is computed
Peaks on the skyline
- 163° Challis A, 16.1 km away, 4.4° high, 1,329 m above the ground here
- 109° Challis A, 16.1 km away, 4.0° high, 1,197 m above the ground here
- 265° Challis A, 14.2 km away, 3.1° high, 841 m above the ground here
- 52° Challis A, 16.1 km away, 3.0° high, 919 m above the ground here
- 314° Challis A, 17.1 km away, 2.9° high, 952 m above the ground here
- 357° Challis A, 15.2 km away, 2.8° high, 815 m above the ground here
A ray every 0.5 degrees out to 200 km across the NASA LRO LOLA terrain, the curvature of the Moon included; each peak is named only when an IAU feature's mapped footprint lies over the point that forms it. Smooth terrain between samples, no boulders.