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To help compare different distances this page lists lengths starting at 1010 metres (10 Gm or 10 million kilometres, or 0.07 Astronomical units).
- 15 Gm — Closest distance of Comet Hyakutake from Earth
- 18 Gm — One light-minute (see yellow sphere in right-hand diagram)
- 24 Gm — Radius of a heliostationary orbit
- 46 Gm — Perihelion distance of Mercury (yellow ellipse on the right)
- 55 Gm — 60,000-year perigee of Mars (last achieved on August 27, 2003)
- 58 Gm — Average passing distance between Earth and Mars at the moment they overtake each other in their orbits
- 61 Gm12 — Diameter of Aldebaran, an orange giant star (large star on right)
- 70 Gm — Aphelion distance of Mercury
- 76 Gm — Neso's apocentric distance; greatest distance of a natural satellite from its parent planet (Neptune)
- 86 Gm3clarification needed — Diameter of Rigel, a blue supergiant star (largest star on right)
See also
Notes
- ^ Richichi, A.; Roccatagliata, V. Aldebaran's angular diameter: How well do we know it?. Astronomy and Astrophysics, Volume 433, Issue 1, April I 2005, pp.305-312. "We derive an average value of 19.96±0.03 milliarcsec for the uniform disk diameter. The corresponding limb-darkened value is 20.58±0.03 milliarcsec, or 44.2±0.9 Rȯ."
- ^ Richichi, A. and Roccatagliata, V. derived an angular diameter of 20.58±0.03 milliarcsec, which given a distance of 65 light years yields a diameter of 61 million km
- ^ "Big and Giant Stars: Rigel". Internetservice Kummer + Oster GbR. Retrieved on 2008-11-26. "Diameter: 62 * Sun"
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Wikipedia content modification information:
- This page was last modified on 26 November 2008, at 20:10.
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