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OCR: The aphelion, the point farthest from the Sun: 246.28 million kilometers. MARS: GENERAL INFORMATION MARS'S SATELLITES @ Rotation on its axis (length of solar day): 24 hours, 39 minutes, 25 seconds. This period is called a sol and is equal to 1.027373 Earth days. Tilt of the planet's axis on the orbital plane: 24º59 (the figure is 23º27 for Earth). As on Earth, this tilt produces seasons. In Mars's northern hemisphere, the length of the seasons are: - Spring: 155.8 sols (160.1 Earth days) - Summer: 194.3 sols (199.6) Autumn: 176.8 sols (181.7) · Winter: 141.7 sols (145.6). Equatorial radius: 3393 kilometers (Earth: 6378 kilometers) Polar radius: 3375 kilometers Mass: 0.107446 (on a scale where Earth's mass equals 1) Gravity: 0.378 (on a scale where Earth's gravity equals 1) MARS BETAT