NASA NTRS · 19930039435
Use of libration-point orbits for space observatories
Abstract
The sun-earth libration points, L1 and L2, are located 1.5 million kilometers from the earth toward and away from the sun. Halo orbits about these points have significant advantages for space observatories in terms of viewing geometry, thermal and radiation environment, and delta-V expediture.
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Farquhar, Robert W., Dunham, David W.. 1990-01-01. Use of libration-point orbits for space observatories. https://ntrs.nasa.gov/citations/19930039435
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