🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.54 AU - 0.86 AU

Year: 211 Days

Day: 31.7 Hours

Environment

Temp: 212 °C

Axial Tilt: 12.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.69 AU - 0.75 AU

Year: 220 Days

Day: 28.3 Hours

Environment

Temp: 195 °C

Axial Tilt: 21.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.86 AU - 1.08 AU

Year: 344 Days

Day: 46.4 Hours

Environment

Temp: 99 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.93 AU - 2.27 AU

Year: 1095 Days

Day: 23 Hours

Environment

Temp: -64 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.25 AU - 2.41 AU

Year: 1280 Days

Day: 42.1 Hours

Environment

Temp: -80 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.1

Radius: 9.2

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.5 AU - 6.76 AU

Year: 6144 Days

Day: 5.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,103,038 km

• M1: 114,742 km (0.082 R)
• M2: 454,778 km (0.05 R)
• M3: 885,769 km (0.078 R)
• M4: 1,281,455 km (0.111 R)
• M5: 1,865,037 km (0.094 R)
• M6: 2,788,953 km (0.113 R)
• M7: 3,245,077 km (0.111 R)
• M8: 3,595,286 km (0.068 R)
• M9: 4,350,605 km (0.044 R)
• M10: 4,731,332 km (0.076 R)
• M11: 6,425,528 km (0.061 R)
• M12: 7,409,433 km (0.056 R)
• M13: 8,152,486 km (0.102 R)
• M14: 9,087,023 km (0.062 R)
• M15: 9,748,695 km (0.047 R)
• M16: 11,627,943 km (0.11 R)
• M17: 17,221,707 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.7

Radius: 13.2

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 7.8 AU - 8.16 AU

Year: 8113 Days

Day: 10.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,103,038 km

• M1: 164,109 km (0.101 R)
• M2: 674,238 km (0.074 R)
• M3: 1,107,922 km (0.094 R)
• M4: 1,665,174 km (0.106 R)
• M5: 2,246,212 km (0.052 R)
• M6: 2,876,767 km (0.115 R)
• M7: 3,478,450 km (0.081 R)
• M8: 4,785,935 km (0.09 R)
• M9: 5,373,256 km (0.094 R)
• M10: 6,148,323 km (0.112 R)
• M11: 7,796,742 km (0.075 R)
• M12: 8,972,431 km (0.117 R)
• M13: 10,015,129 km (0.112 R)
• M14: 12,059,982 km (0.053 R)
• M15: 14,686,023 km (0.083 R)
• M16: 15,729,169 km (0.116 R)
• M17: 18,404,128 km (0.084 R)
• M18: 21,698,872 km (0.101 R)
• M19: 22,708,059 km (0.04 R)
• M20: 25,184,652 km (0.052 R)
• M21: 25,924,114 km (0.084 R)
• M22: 26,678,087 km (0.067 R)
• M23: 27,252,992 km (0.077 R)
• M24: 32,262,875 km (0.065 R)
• M25: 33,355,837 km (0.119 R)
• M26: 36,782,825 km (0.098 R)
• M27: 37,256,901 km (0.113 R)
• M28: 38,096,295 km (0.102 R)
• M29: 40,943,142 km (0.072 R)
• M30: 43,267,893 km (0.098 R)
• M31: 43,928,966 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.6

Radius: 11.1

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.18 AU - 10.2 AU

Year: 8435 Days

Day: 5.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,103,038 km

• M1: 138,378 km (0.066 R)
• M2: 778,657 km (0.101 R)
• M3: 1,299,407 km (0.032 R)
• M4: 1,663,828 km (0.096 R)
• M5: 2,591,185 km (0.09 R)
• M6: 4,333,551 km (0.104 R)
• M7: 5,989,001 km (0.116 R)
• M8: 8,231,024 km (0.025 R)
• M9: 9,318,900 km (0.115 R)
• M10: 10,820,564 km (0.1 R)
• M11: 12,300,386 km (0.082 R)
• M12: 14,741,823 km (0.094 R)
• M13: 15,245,968 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 264.1

Radius: 5.5

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 14.35 AU - 14.63 AU

Year: 19851 Days

Day: 23.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,103,038 km

• M1: 95,593 km (0.088 R)
• M2: 457,919 km (0.081 R)
• M3: 686,953 km (0.105 R)
• M4: 1,225,506 km (0.111 R)
• M5: 3,724,389 km (0.083 R)
• M6: 5,286,789 km (0.094 R)
• M7: 7,283,322 km (0.07 R)
• M8: 7,762,185 km (0.11 R)
• M9: 7,941,403 km (0.103 R)
• M10: 10,750,851 km (0.06 R)
• M11: 13,184,659 km (0.06 R)
• M12: 14,699,188 km (0.099 R)
• M13: 17,526,139 km (0.074 R)
• M14: 19,270,749 km (0.037 R)
• M15: 25,095,791 km (0.102 R)
• M16: 29,424,555 km (0.096 R)
• M17: 29,642,220 km (0.053 R)
• M18: 31,083,745 km (0.086 R)
• M19: 32,223,830 km (0.051 R)
• M20: 35,811,337 km (0.096 R)
• M21: 43,343,739 km (0.112 R)
• M22: 47,253,779 km (0.091 R)
• M23: 52,823,756 km (0.096 R)

Kuiper Belt

Range: 30.5 - 49.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 504 - 15,972 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit