🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.52 AU - 0.62 AU

Year: 156 Days

Day: 13.9 Hours

Environment

Temp: 232 °C

Axial Tilt: 22.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.54 AU - 0.6 AU

Year: 156 Days

Day: 26.4 Hours

Environment

Temp: 160 °C

Axial Tilt: 23.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.93 AU - 1.07 AU

Year: 362 Days

Day: 35.6 Hours

Environment

Temp: 33 °C

Axial Tilt: 31.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.98 AU - 1.56 AU

Year: 518 Days

Day: 37.9 Hours

Environment

Temp: -1 °C

Axial Tilt: 36.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.59 AU - 3.77 AU

Year: 2553 Days

Day: 44.9 Hours

Environment

Temp: -109 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,806,689 km

• M1: 1,244,953 km (0.078 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.56 AU - 4.8 AU

Year: 3091 Days

Day: 20.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.6

Radius: 10.3

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.82 AU - 6.06 AU

Year: 5236 Days

Day: 14.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 98,806,689 km

• M1: 128,355 km (0.066 R)
• M2: 677,379 km (0.068 R)
• M3: 1,430,156 km (0.099 R)
• M4: 3,239,542 km (0.043 R)
• M5: 6,264,560 km (0.116 R)
• M6: 8,020,989 km (0.112 R)
• M7: 9,478,671 km (0.11 R)
• M8: 10,001,814 km (0.074 R)
• M9: 11,061,865 km (0.109 R)
• M10: 12,055,195 km (0.097 R)
• M11: 14,691,558 km (0.088 R)
• M12: 17,154,537 km (0.079 R)
• M13: 18,545,798 km (0.1 R)
• M14: 25,477,714 km (0.069 R)
• M15: 25,863,677 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.8

Radius: 12.2

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 6.38 AU - 8.06 AU

Year: 7016 Days

Day: 7.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 98,806,689 km

• M1: 151,692 km (0.045 R)
• M2: 619,036 km (0.109 R)
• M3: 1,424,321 km (0.066 R)
• M4: 1,820,905 km (0.079 R)
• M5: 2,361,103 km (0.107 R)
• M6: 2,766,364 km (0.083 R)
• M7: 4,822,886 km (0.108 R)
• M8: 5,768,793 km (0.064 R)
• M9: 7,628,145 km (0.117 R)
• M10: 8,190,633 km (0.093 R)
• M11: 9,489,591 km (0.105 R)
• M12: 10,045,946 km (0.101 R)
• M13: 10,871,427 km (0.057 R)
• M14: 11,377,816 km (0.076 R)
• M15: 13,913,051 km (0.065 R)
• M16: 14,631,869 km (0.1 R)
• M17: 18,389,767 km (0.081 R)
• M18: 18,819,412 km (0.075 R)
• M19: 19,329,092 km (0.071 R)
• M20: 21,303,634 km (0.096 R)
• M21: 28,504,677 km (0.107 R)
• M22: 30,156,836 km (0.057 R)
• M23: 30,554,767 km (0.119 R)
• M24: 36,724,931 km (0.088 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.9

Radius: 12.9

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.27 AU - 9.55 AU

Year: 8820 Days

Day: 12.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 98,806,689 km

• M1: 170,990 km (0.117 R)
• M2: 605,123 km (0.105 R)
• M3: 1,041,052 km (0.057 R)
• M4: 2,023,012 km (0.117 R)
• M5: 2,520,724 km (0.09 R)
• M6: 3,841,673 km (0.107 R)
• M7: 5,613,660 km (0.079 R)
• M8: 6,079,957 km (0.085 R)
• M9: 7,321,170 km (0.099 R)
• M10: 14,313,823 km (0.114 R)
• M11: 15,768,214 km (0.054 R)
• M12: 16,632,590 km (0.118 R)
• M13: 17,388,509 km (0.104 R)
• M14: 19,117,261 km (0.085 R)
• M15: 19,718,346 km (0.082 R)
• M16: 20,721,699 km (0.084 R)
• M17: 23,678,351 km (0.092 R)
• M18: 24,900,566 km (0.059 R)
• M19: 32,174,313 km (0.074 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.2

Radius: 3.1

Gravity: 80.77 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 13.72 AU - 22.44 AU

Year: 27803 Days

Day: 23.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 98,806,689 km

• M1: 42,037 km (0.087 R)
• M2: 140,323 km (0.083 R)
• M3: 250,576 km (0.059 R)
• M4: 413,489 km (0.092 R)
• M5: 979,567 km (0.099 R)
• M6: 1,256,024 km (0.066 R)
• M7: 1,918,593 km (0.047 R)
• M8: 3,305,365 km (0.085 R)
• M9: 4,532,367 km (0.094 R)
• M10: 5,587,480 km (0.073 R)
• M11: 5,718,977 km (0.038 R)
• M12: 6,079,508 km (0.091 R)
• M13: 7,252,056 km (0.099 R)
• M14: 7,946,190 km (0.1 R)
• M15: 16,650,991 km (0.088 R)
• M16: 18,913,509 km (0.036 R)
• M17: 24,151,828 km (0.104 R)
• M18: 31,784,461 km (0.1 R)
• M19: 34,794,670 km (0.109 R)
• M20: 36,750,213 km (0.119 R)
• M21: 37,989,332 km (0.116 R)
• M22: 38,777,713 km (0.074 R)
• M23: 42,714,381 km (0.105 R)
• M24: 61,771,205 km (0.049 R)
• M25: 63,520,303 km (0.081 R)
• M26: 63,741,259 km (0.085 R)
• M27: 66,660,213 km (0.078 R)
• M28: 70,137,466 km (0.069 R)
• M29: 70,373,531 km (0.1 R)
• M30: 84,452,785 km (0.079 R)
• M31: 96,747,037 km (0.115 R)

Kuiper Belt

Range: 30.3 - 59.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 17,472 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit