HD 22781 b — HD 22781 System
Cataloged by the NASA Exoplanet Archive TAP service, HD 22781 b orbits host star HD 22781 every 528.07 days at a distance of 32.6 parsecs (106.33 light-years). With a planetary radius of 12.3 R⊕, equilibrium temperature of 193 K, and habitability index of 0.55, it represents a premier target for transmission spectroscopy of water vapor, carbon dioxide, and biosignature disequilibrium gases.
Caltech / NASA Exoplanet Archive TAP Parameters
Exoplanet Record Frequently Asked Questions
How far away is exoplanet HD 22781 b from Earth?
HD 22781 b is located 32.60 parsecs (106.33 light-years) from Earth, completing one full orbit around HD 22781 every 528.07 days.
Does HD 22781 b have liquid water?
The recorded radius and model-dependent equilibrium temperature do not establish an atmosphere or liquid water. Habitability remains unconfirmed.
Satin-black 5W warm-white LED optical glass lens planetarium projecting 60,000 stars and simulated meteor shower trajectories indoors.
Quadruplet apochromatic 50mm smart observatory with 8.3MP Sony IMX585 sensor and live mosaic panorama stitching for APOD nebulae.
Iconic 203mm f/10 StarBright XLT Schmidt-Cassegrain GoTo telescope with SkyAlign database of 40,000+ deep-sky objects.
Dual-bandpass H-Alpha, H-Beta, and OIII narrowband filter isolating emission nebulae under urban light pollution.
Waterproof laminated skywatcher field atlas charting Messier, NGC, and IC nebulae alongside nearby exoplanet host constellations.