Star profile

Iota Sagittarii

3D likeness based on its real data · class K · ~4,200 K

What is Iota Sagittarii

Iota Sagittarii is an orange K0 giant that has exhausted its core hydrogen and swollen to about fifteen solar radii, radiating nearly ninety times the Sun's light. It shines at 182 light-years in one of the densest regions of the sky: Sagittarius points straight toward the centre of the Milky Way, so its warm light reaches us through a thick field of more distant siblings.

Where it is and when to see it

Iota Sagittarii lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is July: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.

Find it on the sky map

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The signature wall

Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.

A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works

If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, no password.

Write my signature

A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.

Astronomical data for Iota Sagittarii

Constellation: Sagittarius
Apparent magnitude: 4.12
Distance: 181.8 light years
Coordinates (J2000): RA 298.815° · Dec -41.868°
Catalogue: HIP 98032 · HD 188114

A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.

Other stars in Sagittarius

Sagittarius has 117 stars in Stelvia's catalogue. Here are a few of them.

See all 117 stars in Sagittarius