Star Platinum

Compare infrared photos of the same patch of sky taken months apart. Anything that moves or changes stands out.

Tools

Pick one to start.

Blog

Plain-language guides to what you can find with these tools.

Data from NASA’s SPHEREx telescope · live public data · some tools are coming soon

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Timelinei

Hover for a quick look, click to pin a point. Space = play, ←/→ = step.

How Star Platinum works

The SPHEREx telescope photographs the whole sky in infrared every six months. We line up its photos of one spot so you can see what changed. Things that stay put are stars and galaxies. Things that shift are the interesting ones.

  1. Pick a place. Type coordinates, spin the sky sphere, or press Random patch.
  2. Press play. Watch for a dot that jumps.
  3. Try Diff. White is new, black is gone.
  4. Hover a point for a quick look. Click to check if it is a known object.
  5. Open Analytics for counts, candidates and spectra.

Contact and support

Hi, I’m Platy. Support is still in development, so there is no contact form yet. Until then, press me anywhere on the site for a hint.