Finding Earth 2.0
Exoearth evidence observatory · selection

What Kepler was capable of detecting

A planet can exist and still never enter the catalogue. This surface combines transit geometry, the observed phase window, injection-calibrated pipeline recovery and vetting across a declared target sample.

21 periods × 17 radii · 357 evaluated cells

114,105

selected GK targets

unique DR25 stars

43,350

injection trials

inside model domain

357

surface cells

50–500 d · 0.5–2.0 R⊕

4 factors

selection chain

geometry · window · recovery · vetting

What the analysis found

Survey sensitivity is a physical part of the answer

Longer-period, smaller planets are harder to see for several independent reasons. The selected cell view exposes those factors separately, preventing a low catalogue count from being read as direct evidence that such planets are intrinsically rare.

Interactive selection surface

Move through period–radius space

Each cell asks how often a planet signal at this period and radius would transit, land in an observed phase window, pass the DR25 pipeline and survive vetting across the selected GK-dwarf targets.

50 dorbital period →500 d

Selected survey cell

MODEL-INFERRED

354.0 d · 1.00 R⊕

Transit geometry
0.450%
Observed phase window
78.1%
Pipeline incl. window
0.668%
Vetting | recovered
11.7%
Total selection
0.002%

Equivalent exposure: 2.5 stars. This is detection exposure, not an inferred planet count.

Kepler DR25 selection probability over orbital period and planet radius
The colour field is target-averaged total selection probability. It is detection exposure, not occurrence or habitability.