Since 2020, 26 confirmed worlds have been reported in their stars' habitable zones — most orbiting cool red dwarfs in weeks, not years

Asked:“Find every exoplanet discovered since 2020 in the habitable zone, and give me the host star, orbital period and radius and map them on the sky map” — follow-up: “make report beautiful”

The catalog below holds 26 confirmed planets around 25 host systems, first reported between 2020 and the scan date of 1 September 2026, that cited sources explicitly place in — or at the edge of — a circumstellar habitable zone. 15 have a measured radius (in Earth radii), 18 a published orbital period (days), and 20 carry a usable right ascension; only one source row supplied a declination, so the sky map is honest about that.

All-sky strip: right ascension 0–360° across, declination vertical where measured. 19 of the 20 plottable planets had no extracted declination and sit in the labelled band along the bottom — their east–west sky position is real; their height is not a coordinate. Hover any marker for detail.

Discoveries year by year

Confirmed habitable-zone planets by year of first report, 2020–2026 (partial). 11 of the 26 planets in the wider catalog lack an explicit year in the scanned rows and are not shown here.

Radius against orbital period, where both are measured

14 planets with both a measured radius and period. Period on a log scale; colour by discovery year where known.

Every measured radius sits between 0.93 and 3.2 Earth radii — super-Earth to sub-Neptune territory; the smallest, Gliese 12 b at 0.93 R⊕, is nearly Earth-sized 12 parsecs away — arxiv.org

Most of these habitable zones are tight: 13 of the 18 known periods are under 60 days, because cool M-dwarf habitable zones hug the star — wikipedia.org

TOI-4633 c is the outlier: a 272-day habitable-zone orbit inside a binary star system, where temperatures reach 420 K at periastron — wikipedia.org

GJ 251 c, reported in 2025, is the only object in the scan with a full published sky position (RA 103.700°, dec +33.266°) — science.nasa.gov

Catalog

Planet	Host star	Year	Period, d	Radius, R⊕	Radius status	Source

Method: 26 confirmed exoplanets first reported 2020 – 2026 (scan date 2026-09-01) that accessible cited sources explicitly describe as in, within, at the edge of, or a candidate member of a circumstellar habitable zone. “Habitable zone” does not mean habitable or inhabited, and definitions differ between sources. Aliases were merged (GJ/Gliese 1002, LP 890-9 c/SPECULOOS-2 c, HN Librae/HN Lib, 82 G. Eridani/HD 20794); known extraction mismatches were removed (the 18.314-day period wrongly attached to HD 20794 d, the 3830-day HIP periods, and Kepler-1649 b corrected to the intended Kepler-1649 c). Discovery years come from the yearly Wikipedia lists where available; blank cells mean the value was not resolved, never zero. TOI-4633 c and TOI-7166 b share an identical extracted right ascension, likely an extraction artefact. Radii in Earth radii, periods in days, positions in J2000 degrees.

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