Click to visit Home Page


Find Sagittarius in the Night Sky


Animation showing the movement of Sagittarius across the night sky as seen by an observer at the Equator (0 latitude) (1353 KB)

Animation showing the movement of Sagittarius across the night sky as seen by an observer at the Equator (0 latitude) (click for full-size animation, Note: 1353 KB!). Only Sagittarius is shown in the animation; all other constellations have been omitted for clarity. The directions and altitudes shown refer to a star located on the ecliptic in central Sagittarius, indicated by a small yellow cross (+).

The constellation's direction and altitude (Alt) are shown at hourly intervals before Meridian Transit (-1 hour, -2 hours, etc) and after Meridian Transit (+1 hour, +2 hours, etc).

At the Equator, all celestial bodies rise and set vertically (at 90 to the horizon). One consequence of this is that the duration of the sunrise and sunset is shorter at the Equator than at any other latitude, twilight lasting only a short period of time, regardless of the season (it has often been said by equatorial explorers that "darkness falls quickly after sunset"). As is the case at other latitudes, the position of the sunrise and sunset on the horizon varies during the year, however at the Equator the length of daylight remains more or less constant throughout the year. This is why Daylight Savings Time (DST) is not observed in countries situated in Equatorial latitudes.

Scenery: Equatorial rainforest

Find Sagittarius in the Night Sky

^ Back to Top of Page


Sagittarius Path across the Sky at the Equator (Full Desktop Site)


Photographs of the Night Sky

Hale-Bopp: The Great Comet of 1997

The Cornwall Eclipse of 1999


Copyright  Martin J Powell  2008