IAU constellation drawing atlas

Sagittarius constellation

Recognise the shape, know when the whole figure is above your horizon, and practise its 13-segment line map before you step outside.

A simplified learning figure, normalised to a local 0–100 frame.

Observation card

Sagittarius at a glance

Best evening month
August
Brightest anchor
Kaus Australis (magnitude 1.79)
Whole-figure latitude range
-90° to 53°
Declination span
-36.8° to -21.1°
Learning map
10 plotted stars · 13 segments
Catalogue lineage
ptolemy

How to find Sagittarius

The complete figure is available from the South Pole northward to about 53° north, favouring southern observers. It is favourably placed during ordinary evening observing hours in August; the exact hour shifts through the month and with longitude.

Kaus Australis, at visual magnitude 1.79, gives the pattern a useful naked-eye anchor. Start at the brightest anchor, then compare the direction and spacing of each neighbouring segment. A moonless night and an unobstructed horizon make the fainter links easier.

What this line map means

It belongs to the classical constellation tradition recorded by Ptolemy. Astral Nest uses a simplified IAU learning figure based on Hipparcos star positions, then projects and normalises it so the pattern is easy to trace on screen.

This diagram teaches relative shape, not absolute sky position. Rotation, scale, atmospheric extinction and local obstruction change what you see outdoors, so use a current planetarium or ephemeris for navigation.

Zodiac collection

From a sky figure to a personal chart

Sagittarius is one of the twelve figures in Astral Nest's zodiac card collection. A natal chart depends on date, exact time and place—not on this outline alone.

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Continue the collection

Zodiac collection: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpius, Capricornus, Aquarius, Pisces

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