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WASP-121 b / Tylos · Artist's Reconstruction

Buy A Galaxy · original commissioned reconstruction

Artist's Reconstruction · View astronomy source

Artist's ReconstructionFull image credit, source & interpretation

Artist's reconstruction based on published astronomical observations and current scientific understanding.

A real exoplanet. A very personal interpretation.

WASP-121 b / Tylos

Official catalogue designation: WASP-121 b

Your name for it: Planet Brenda

An inflated ultra-hot giant in an exceptionally close orbit, with an atmosphere shaped by intense stellar heating.

Planet type
Ultra-hot Jupiter
Distance from Earth
c. 880 light-years
Constellation
Puppis
Planet radius
1.742 × Jupiter
Host star
WASP-121
Orbital period
c. 1.3 days

Values are rounded estimates and may be refined by further observations. Personal names remain ceremonial.

Claim This Planet

A personalised planet gift preview. No order or reservation is made.

Make it theirs

Give infinity a personal touch.

For example, Planet Brenda. Completely unofficial. Up to 60 characters.

At launch, digital editions are available worldwide. A4, A3 and Framed A3 packages are available in the UK, with international print delivery planned.

Your gift format

Illustrative launch pricing. Ordering opens on 23 October 2026.

A3 Print Package

A3 poster + A4 printed certificate. Information sheet included.

Paper sizes shown in proportion. Tap either piece to inspect your personalisation.

Live preview · your selected galaxy and personalisation.
Registration number is a demonstration, not a saved registry entry. Artwork image credit

A world with a story

More than a beautiful planet.

Host star
WASP-121
Star type
F-type star
Planet radius
1.742 × Jupiter
Planet mass
1.17 × Jupiter
Orbital period
c. 1.3 days
Orbital distance
0.02571 AU
Discovery
2016 · Transit

Values are rounded from published catalogue measurements. Sky coordinates identify the host system, not a resolved planetary surface.

Meet Tylos

WASP-121 b, also called Tylos, is a gas giant with a much larger radius than Jupiter. It circles its star in roughly 1.3 days. Strong heating and the close orbit make this a very different world from the gas giants in our Solar System.

Where is this extreme world?

The host star lies in Puppis, approximately 880 light-years away. Its catalogue classifies the star as F-type. Distances and physical values are rounded here; published measurements can change as astronomers refine their models.

What do astronomers know?

Spectroscopic observations reveal an atmosphere affected by extreme heat, with different conditions across the day and night sides. The close star can also distort the planet’s shape. The scale and appearance of atmospheric features depend on interpretation of those observations.

Why does the artwork blaze?

The reconstruction uses intense warm illumination and atmospheric bands to convey an ultra-hot giant. Colour, visible cloud detail and the viewing angle are illustrative. A nearby stellar light source expresses heating; it is not a literal photograph of the system.

How was it discovered?

The NASA catalogue records a 2016 transit discovery. A transit dims a star slightly as a planet crosses its face. Repeated events constrain the orbital period and allow astronomers to investigate light passing through the atmosphere.

A gift with considerable atmosphere

Your personalised planet poster retains Tylos’s astronomical designation and selected facts. Add a recipient, custom message and date to make it a meaningful object for the wall, rather than a claim to interstellar real estate.

Science, with sources.

Checked 30 September 2026. The source organisations do not endorse this gift.

Other corners of the universe

Quite different neighbours.

A closer look

Protected preview. Final prints and paid digital files are supplied without watermarks.

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