astronomical transits

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• Astronomical unit — This article is about unit of length. For the full system of units, see Astronomical system of units. 1 astronomical unit = SI units 149.60×10^6 km 149.60×10^9 m Astronomical units 4.8481 …   Wikipedia

• Astronomical transit — The term transit or astronomical transit has three meanings in astronomy:* A transit is the astronomical event that occurs when one celestial body appears to move across the face of another celestial body, as seen by an observer at some… …   Wikipedia

• Astronomical day — Day Day (d[=a]), n. [OE. day, dai, dei, AS. d[ae]g; akin to OS., D., Dan., & Sw. dag, G. tag, Icel. dagr, Goth. dags; cf. Skr. dah (for dhagh ?) to burn. [root]69. Cf. {Dawn}.] 1. The time of light, or interval between one night and the next; the …   The Collaborative International Dictionary of English

• Transit of Mercury — on November 8, 2006 with sunspots #921, 922, and 923 …   Wikipedia

• List of effects — This is a list of names for observable phenonema that contain the word effect, amplified by reference(s) to their respective fields of study. #*3D audio effect (audio effects)A*Accelerator effect (economics) *Accordion effect (physics) (waves)… …   Wikipedia

• Transit of Venus — A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and Earth, obscuring a small portion of the Sun s disk. During a transit, Venus can be seen from Earth as a small black disk moving across the… …   Wikipedia

• eclipse — eclipser, n. /i klips /, n., v., eclipsed, eclipsing. n. 1. Astron. a. the obscuration of the light of the moon by the intervention of the earth between it and the sun (lunar eclipse) or the obscuration of the light of the sun by the intervention …   Universalium

• Mercury (planet) — Mercury  ☿ …   Wikipedia

• Venus — This article is about the planet. For other uses, see Venus (disambiguation). Venus   …   Wikipedia

• Crab Nebula — Crab Nebula …   Wikipedia

• 11th millennium and beyond — The 11th millennium and beyond is a period of time that will begin on 1 January, 10001 CE. Several predictions have been made concerning this future time period. This article is a compendium of these predictions ranging from factual astronomical… …   Wikipedia