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Habitable Zone Zone around a star where liquid water can Zone around a star where liquid water can exist on the surface of a terrestial-like exist on the surface of a terrestial-like planet planet This zone depends on: This zone depends on: the spectraltype , the mass , the age, …. of the spectraltype , the mass , the age, …. of the star the star the orbit of the planet the orbit of the planet the mass, the composition, the atmosphere , the mass, the composition, the atmosphere , ……of the planet ……of the planet the parameters of other planets in this the parameters of other planets in this system (mass, orbit, …) system (mass, orbit, …)

Habitable Zone

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Habitable Zone. Zone around a star where liquid water can exist on the surface of a terrestial-like planet This zone depends on: the spectraltype , the mass , the age, …. of the star the orbit of the planet the mass, the composition, the atmosphere , ……of the planet - PowerPoint PPT Presentation

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Page 1: Habitable Zone

Habitable Zone

Zone around a star where liquid water can exist Zone around a star where liquid water can exist on the surface of a terrestial-like planeton the surface of a terrestial-like planet

This zone depends on:This zone depends on:– the spectraltype , the mass , the age, …. of the starthe spectraltype , the mass , the age, …. of the star– the orbit of the planetthe orbit of the planet– the mass, the composition, the atmosphere , ……of the mass, the composition, the atmosphere , ……of

the planetthe planet– the parameters of other planets in this system the parameters of other planets in this system

(mass, orbit, …)(mass, orbit, …)

Page 2: Habitable Zone

Types of Habitable Zones:Types of Habitable Zones:

(1) Hot-Jupiter type (2) Solar system type(3)+(4) giant planet type: habitable moon or trojan planet

Page 3: Habitable Zone

based on the definition given by Kasting et al. (1993).

Size of the habitable zone

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