🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.52 AU - 0.76 AU

Year: 156 Days

Day: 21.6 Hours

Environment

Temp: 328 °C

Axial Tilt: 18.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 97,371,285 km

• M1: 103,821 km (0.052 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.58 AU - 0.86 AU

Year: 186 Days

Day: 37.5 Hours

Environment

Temp: 275 °C

Axial Tilt: 49.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3 AU - 4.2 AU

Year: 2079 Days

Day: 21.4 Hours

Environment

Temp: -52 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.09 AU - 4.13 AU

Year: 2536 Days

Day: 32.9 Hours

Environment

Temp: -75 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.76 AU - 5.02 AU

Year: 3291 Days

Day: 41.9 Hours

Environment

Temp: -84 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.24 AU - 8.68 AU

Year: 6202 Days

Day: 12.1 Hours

Environment

Temp: -116 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,371,285 km

• M1: 26,329 km (0.098 R)

Asteroid Belt

Center: 9.57 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 11.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.6

Radius: 13

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 9.02 AU - 14.34 AU

Year: 12150 Days

Day: 12.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 97,371,285 km

• M1: 161,715 km (0.108 R)
• M2: 647,460 km (0.052 R)
• M3: 1,257,669 km (0.084 R)
• M4: 1,776,475 km (0.113 R)
• M5: 2,520,874 km (0.059 R)
• M6: 3,183,742 km (0.057 R)
• M7: 4,077,140 km (0.086 R)
• M8: 4,567,373 km (0.078 R)
• M9: 5,131,207 km (0.111 R)
• M10: 6,851,582 km (0.044 R)
• M11: 9,867,775 km (0.094 R)
• M12: 13,343,232 km (0.038 R)
• M13: 14,015,675 km (0.035 R)
• M14: 16,244,683 km (0.067 R)
• M15: 17,011,671 km (0.059 R)
• M16: 20,235,506 km (0.106 R)
• M17: 23,457,545 km (0.069 R)
• M18: 25,855,299 km (0.105 R)
• M19: 27,327,193 km (0.094 R)
• M20: 28,412,226 km (0.057 R)
• M21: 29,865,420 km (0.098 R)
• M22: 34,397,338 km (0.065 R)
• M23: 39,780,019 km (0.109 R)
• M24: 40,612,082 km (0.084 R)
• M25: 44,057,022 km (0.075 R)
• M26: 51,359,043 km (0.114 R)
• M27: 56,071,676 km (0.115 R)
• M28: 58,711,330 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 15.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.5

Radius: 13.7

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 12.38 AU - 18.26 AU

Year: 18251 Days

Day: 14.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 97,371,285 km

• M1: 170,392 km (0.067 R)
• M2: 649,704 km (0.112 R)
• M3: 1,458,729 km (0.071 R)
• M4: 1,885,083 km (0.106 R)
• M5: 2,686,628 km (0.068 R)
• M6: 3,590,199 km (0.116 R)
• M7: 5,917,194 km (0.098 R)
• M8: 7,351,688 km (0.088 R)
• M9: 7,878,123 km (0.109 R)
• M10: 8,481,002 km (0.097 R)
• M11: 12,566,221 km (0.061 R)
• M12: 15,532,897 km (0.118 R)
• M13: 16,563,775 km (0.045 R)
• M14: 17,054,606 km (0.113 R)
• M15: 19,205,823 km (0.106 R)
• M16: 27,188,665 km (0.072 R)
• M17: 29,275,107 km (0.099 R)
• M18: 30,723,962 km (0.062 R)
• M19: 31,341,651 km (0.09 R)
• M20: 32,093,830 km (0.107 R)
• M21: 33,503,790 km (0.093 R)
• M22: 34,290,226 km (0.035 R)
• M23: 36,447,277 km (0.036 R)
• M24: 38,836,954 km (0.071 R)
• M25: 40,585,454 km (0.075 R)
• M26: 42,082,180 km (0.105 R)
• M27: 43,615,259 km (0.091 R)
• M28: 44,868,441 km (0.046 R)
• M29: 45,984,590 km (0.064 R)
• M30: 55,589,073 km (0.103 R)
• M31: 66,862,170 km (0.086 R)
• M32: 72,593,863 km (0.08 R)
• M33: 73,250,298 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.7

Radius: 7.1

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 14.39 AU - 21.37 AU

Year: 23012 Days

Day: 16.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 97,371,285 km

• M1: 92,900 km (0.063 R)
• M2: 422,764 km (0.098 R)
• M3: 1,054,815 km (0.077 R)
• M4: 2,027,201 km (0.057 R)
• M5: 2,834,132 km (0.107 R)
• M6: 3,581,672 km (0.074 R)
• M7: 6,197,391 km (0.106 R)
• M8: 6,738,486 km (0.102 R)
• M9: 9,169,601 km (0.093 R)
• M10: 9,761,710 km (0.085 R)
• M11: 10,609,780 km (0.11 R)
• M12: 12,451,779 km (0.054 R)
• M13: 14,354,364 km (0.084 R)
• M14: 16,442,601 km (0.037 R)
• M15: 17,477,669 km (0.096 R)
• M16: 17,722,561 km (0.063 R)
• M17: 24,719,403 km (0.065 R)
• M18: 27,701,935 km (0.077 R)
• M19: 29,741,104 km (0.09 R)
• M20: 30,207,400 km (0.064 R)
• M21: 32,736,203 km (0.088 R)
• M22: 33,861,777 km (0.094 R)
• M23: 34,498,316 km (0.111 R)
• M24: 35,402,635 km (0.046 R)
• M25: 37,936,823 km (0.1 R)
• M26: 42,327,072 km (0.113 R)
• M27: 49,610,843 km (0.113 R)
• M28: 52,100,301 km (0.051 R)
• M29: 60,252,338 km (0.104 R)
• M30: 61,562,815 km (0.097 R)
• M31: 63,083,776 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 21.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 642.3

Radius: 4.8

Gravity: 27.88 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 19.35 AU - 23.23 AU

Year: 29900 Days

Day: 19.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 97,371,285 km

• M1: 258,954 km (0.095 R)
• M2: 554,859 km (0.1 R)
• M3: 986,897 km (0.103 R)
• M4: 1,138,889 km (0.074 R)
• M5: 1,306,588 km (0.115 R)
• M6: 1,580,202 km (0.117 R)
• M7: 2,408,526 km (0.068 R)
• M8: 2,986,871 km (0.044 R)
• M9: 4,021,041 km (0.059 R)
• M10: 5,612,912 km (0.105 R)
• M11: 7,372,781 km (0.075 R)
• M12: 15,553,691 km (0.061 R)
• M13: 16,073,992 km (0.086 R)
• M14: 23,364,195 km (0.041 R)
• M15: 24,046,212 km (0.099 R)
• M16: 25,929,799 km (0.029 R)
• M17: 29,066,118 km (0.091 R)
• M18: 31,750,203 km (0.115 R)
• M19: 32,727,377 km (0.096 R)
• M20: 35,779,024 km (0.064 R)
• M21: 46,416,928 km (0.068 R)
• M22: 47,856,209 km (0.058 R)
• M23: 50,257,853 km (0.062 R)
• M24: 92,492,324 km (0.11 R)
• M25: 96,208,186 km (0.098 R)

Kuiper Belt

Range: 36 - 66 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 18,815 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit