HD 40307

Star type
g K3 V

Distance from Earth
g 41.8 ly

Star Service No.
g NA

Age
g NA

Diameter/
Mass/
Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g Slightly dimmer than our Sun

Metallicity
g NA

Comparison
to Sol
g NA

Picture of star
g NA

Star system features
g Because star is deep in the southern hemisphere, it is beyond the reach of nearly all telescopes in the continental U.S., including the Allen Telescope Array.

Known planets
Multiple planets orbit the star:
g b: Mass 420% of Earth (SuperEarth); orbit of 4.3 days inside of habitable zone
g c: Mass 670% of Earth (SuperEarth); orbit of 9.6 days inside of habitable zone
g d: Mass 940% of Earth (SuperEarth); orbit of 20.4 days inside of habitable zone
g e: SuperEarth
g f: SuperEarth
g g: Mass is 700% of Earth (SuperEarth) with almost twice the diameter of Earth. Orbit located inside habitable zone, orbiting about average distance of 56 million miles or 0.6 astronomical units, roughly the same as Venus’ distance from the Sun; a single year on the planet takes 197.8 Earth days. Planet temperatures might be quite suitable for habitation, especially if a thick atmosphere exists.

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

Nearby stars
(Star systems with 10 light years)
g NA

Map locating star system
g NA

Location in Earth sky
g Towards the southern Doradus and Pictor constellations

Other names
g HIP 27887; CD-60 1303; CP-60 508

Sci-fi mentions
g NA

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