HD 175607 b

Astrophysical Synthesis & Habitability Characterization

HD 175607 b is a confirmed gas giant exoplanet orbiting the star HD 175607, located approximately 131.5 light-years (40.33 parsecs) from the Solar System. First announced in 2015 by La Silla Observatory using the Radial Velocity detection technique (measuring periodic Doppler reflex motion in the host star's spectrum), this world has a minimum or true mass of 2456.178 Earth masses (7.73 M♃), while its physical transit radius has not yet been geometrically observed.

In its orbital architecture around HD 175607, HD 175607 b completes one full revolution every 29.01 Earth days. Its moderate orbital eccentricity of e = 0.11 driving measurable seasonal insolation cycles.

ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for HD 175607 b place it outside the conservative habitable zone definition pending further atmospheric characterization.

The host star HD 175607 is classified as a solar-type yellow star of spectral type G6 V with an effective photospheric temperature of 5,392 K, a radius of 0.7 R☉, a mass of 0.71 M☉, an estimated bolometric luminosity of 0.372 L☉. Stellar evolution modeling indicates an estimated stellar age of 10.32 Gyr and a metallicity of [Fe/H] = -0.62 dex (metal-poor relative to the Sun). From Earth, HD 175607 shines at apparent V-band magnitude 8.6 (accessible to binoculars and small amateur telescopes) in the Southern celestial hemisphere.

Discovery Facility: La Silla Observatory · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).