When the sun leaves Scorpio it crosses the Milky Way into Sagittarius,
and there reaches the lowest point in its path, twenty-three and
one-half degrees south of the equator. This constellation is best
distinguished by the little “milk dipper,” which is easily seen turned
upside down just at the eastern edge of the Milky Way. The line of the
ecliptic runs a little north of it. The constellation may be best seen
during about the same months that Scorpio is visible. The sun enters
it, and it passes out of view about the middle of December.