:INFO
Gas giant around ZTF J1230-2655
It is 1.23 times Jupiter's radius, closest in size to Jupiter, and 7024.0 times Earth's mass. A year there lasts 5.7 hours. The host star ZTF J1230-2655 runs at 10000 K with 0.65 times the Sun's mass.

:COUNTER
5.7 hours: one full year, start to finish

:STATS
[icon:TARGET] Radius | 13.79 Earth radii
[icon:CHART] Mass | 7024.0 Earth masses
[icon:CLOCK] One year | 5.7 hours
[icon:STAR] Host star | ZTF J1230-2655 at 10000 K
[icon:USERS] Distance | 609 light-years
[icon:TRENDING_DOWN] Starlight blocked | 10536.672% at each transit

:CHECKLIST
Known and unknown, as the archive has it
[ ] A size. Yes.
[ ] A measured mass. Yes.
[ ] A density, the one clue to composition. No.
[ ] How far out it orbits. No.
[ ] A measured temperature rather than a derived one. No.
[ ] An eccentricity, so we know if the orbit is a circle. No.

:PATH
What a crossing measures
The depth of the dip is the ratio of the two discs, so the radius follows.

:NOTE
The size came from a crossing, the mass did not. That pairing is uncommon and it is what lets anyone say whether this is rock or gas.

:NOTE
Found by Zwicky Transient Facility in 2025.

:LINK
https://exoplanetarchive.ipac.caltech.edu/overview/ZTF%20J1230-2655%20b
NASA Exoplanet Archive: the full record for ZTF J1230-2655 b