There is just 1 constellation that starts with the letter I, and that is “Indus.” This faint southern constellation is one of many star patterns that people have used for centuries to map the night sky, tell stories, and find their way after dark. Even though it holds only a single entry, it offers a nice glimpse into how skywatchers have organized the heavens.

Constellations are groups of stars that form recognizable shapes or patterns in the night sky, and many carry names from ancient myths and cultures. Indus is a more modern one, introduced in the late 16th century by Dutch navigators who charted the unfamiliar stars of the far south.

Below you’ll find the table with Constellation, Hemisphere, Best Viewing Month, Notable Stars, and Description.

Constellation: This shows the official name of the star pattern, so you can quickly identify it and look up more details if you want.

Hemisphere: This tells you whether the constellation appears in the northern or southern sky, helping you know if you can see it from where you live.

Best Viewing Month: This points you to the time of year when the constellation sits highest and clearest, making it easier to spot in the evening.

Notable Stars: This lists the brightest or most important stars in the pattern, giving you specific points to look for when scanning the sky.

Description: This gives you a short summary of the constellation’s history, meaning, and key features, so you understand what makes it interesting.

Constellations

Descriptions