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Zenith Angle

Result

90° (degrees) ()

Unit conversions

1.57 radians

0.00157 krad (kiloradians)

100 grads
(unit officially deprecated)

1 quad (quadrant)

0.5 semicircles

Comparisons as plane angle

≈ ( 0.25 ≈ 1/4 ) × full angle ( 2 π rad )

≈ 3.8 × tilt of the earth's axis relative to its orbital plane ( 23.45° )

Visual representation for 90° (degrees)

Corresponding quantity

Rotation count N from N = φ/(2π):
| 0.25 rot (rotations)