The sky is not still.

Stars drift. Some flicker. Cold worlds hide in colours our eyes cannot see. Pick any point of this map to watch that spot change over time, and find out what it is.

Or start with

1.35 µm

Over time every SPHEREx exposure of this spot

Speed

Display options

Brightness Field Markings Negative Smooth Gaia stars WISE sources Masked pixels

Scroll or pinch to zoom, drag to pan, click or tap a star to measure it.

This image: date, wavelength, quality, pixel flags

Data releases in use

Releases come from the sky index, which is rebuilt from the NASA/IPAC archive on a schedule. A new release appears here without any change to this site.

Spectrum its light by colour molecule bands

Brightness over time

Each measurement in the selected detector, divided by the spot's own average spectrum at that wavelength, so colour does not pass for variability. A steady star stays near 1.

Images: NASA SPHEREx, served by NASA/IPAC (IRSA). Catalogues: Gaia DR3, CatWISE2020, SIMBAD. Sky atlas: Aladin Lite. Encyclopedia cards: Wikipedia.