🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.58 AU - 0.6 AU

Year: 168 Days

Day: 42.9 Hours

Environment

Temp: 170 °C

Axial Tilt: 2.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.56 AU - 0.72 AU

Year: 190 Days

Day: 46.2 Hours

Environment

Temp: 159 °C

Axial Tilt: 33.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.54 AU - 0.8 AU

Year: 203 Days

Day: 20.4 Hours

Environment

Temp: 199 °C

Axial Tilt: 0.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 111,876,291 km

• M1: 59,390 km (0.063 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.86 AU - 1.12 AU

Year: 365 Days

Day: 24.8 Hours

Environment

Temp: 22 °C

Axial Tilt: 38.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.36 AU - 1.7 AU

Year: 702 Days

Day: 39.5 Hours

Environment

Temp: -50 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.55 AU - 3.27 AU

Year: 1841 Days

Day: 40.3 Hours

Environment

Temp: -99 °C

Axial Tilt: 6.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807

Radius: 10.6

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 8.6 AU - 12.5 AU

Year: 12708 Days

Day: 12.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 111,876,291 km

• M1: 132,095 km (0.11 R)
• M2: 483,201 km (0.108 R)
• M3: 900,878 km (0.105 R)
• M4: 1,532,780 km (0.085 R)
• M5: 3,282,028 km (0.096 R)
• M6: 3,620,268 km (0.068 R)
• M7: 4,306,624 km (0.051 R)
• M8: 6,644,988 km (0.059 R)
• M9: 7,363,357 km (0.117 R)
• M10: 7,946,938 km (0.107 R)
• M11: 8,658,426 km (0.106 R)
• M12: 20,026,667 km (0.081 R)
• M13: 22,343,938 km (0.113 R)
• M14: 25,738,314 km (0.114 R)
• M15: 28,147,288 km (0.072 R)
• M16: 28,799,535 km (0.073 R)
• M17: 30,702,719 km (0.12 R)
• M18: 35,007,099 km (0.111 R)
• M19: 44,350,533 km (0.063 R)
• M20: 47,800,559 km (0.102 R)
• M21: 49,354,881 km (0.118 R)
• M22: 49,985,885 km (0.118 R)
• M23: 54,723,051 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.3

Radius: 9.4

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 9.76 AU - 13.12 AU

Year: 14350 Days

Day: 8.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 111,876,291 km

• M1: 117,285 km (0.045 R)
• M2: 413,040 km (0.059 R)
• M3: 733,778 km (0.108 R)
• M4: 2,027,201 km (0.094 R)
• M5: 2,684,235 km (0.087 R)
• M6: 3,265,273 km (0.105 R)
• M7: 4,260,547 km (0.098 R)
• M8: 5,520,161 km (0.106 R)
• M9: 6,056,320 km (0.106 R)
• M10: 8,405,904 km (0.073 R)
• M11: 9,220,614 km (0.094 R)
• M12: 11,125,743 km (0.086 R)
• M13: 11,426,435 km (0.107 R)
• M14: 13,279,504 km (0.111 R)
• M15: 13,893,304 km (0.037 R)
• M16: 14,312,776 km (0.117 R)
• M17: 14,668,819 km (0.046 R)
• M18: 20,117,922 km (0.086 R)
• M19: 23,094,770 km (0.074 R)
• M20: 25,200,659 km (0.101 R)
• M21: 26,035,565 km (0.116 R)
• M22: 26,353,460 km (0.108 R)
• M23: 30,606,378 km (0.034 R)
• M24: 31,676,751 km (0.098 R)
• M25: 33,142,511 km (0.075 R)
• M26: 38,629,162 km (0.108 R)
• M27: 40,869,241 km (0.046 R)
• M28: 50,369,304 km (0.077 R)
• M29: 51,860,196 km (0.084 R)
• M30: 57,758,391 km (0.105 R)
• M31: 58,299,487 km (0.112 R)
• M32: 61,428,775 km (0.109 R)
• M33: 63,130,152 km (0.038 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.2

Radius: 3

Gravity: 10.91 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 12.96 AU - 13.54 AU

Year: 17887 Days

Day: 15.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 111,876,291 km

• M1: 37,250 km (0.117 R)
• M2: 162,014 km (0.048 R)
• M3: 315,352 km (0.115 R)
• M4: 1,034,320 km (0.105 R)
• M5: 1,413,251 km (0.085 R)
• M6: 1,907,822 km (0.12 R)
• M7: 2,472,254 km (0.096 R)
• M8: 3,204,536 km (0.099 R)
• M9: 3,561,776 km (0.091 R)
• M10: 3,871,294 km (0.093 R)
• M11: 4,302,584 km (0.081 R)
• M12: 4,793,116 km (0.071 R)
• M13: 6,522,467 km (0.103 R)
• M14: 7,242,332 km (0.067 R)
• M15: 9,139,682 km (0.104 R)
• M16: 9,315,011 km (0.075 R)
• M17: 10,225,463 km (0.083 R)
• M18: 12,434,126 km (0.028 R)
• M19: 14,343,893 km (0.09 R)
• M20: 15,062,112 km (0.095 R)
• M21: 15,245,369 km (0.081 R)
• M22: 17,160,222 km (0.108 R)
• M23: 17,696,680 km (0.119 R)
• M24: 30,709,002 km (0.099 R)
• M25: 35,113,612 km (0.059 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 856.7

Radius: 3.8

Gravity: 59.33 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 17.2 AU - 21.76 AU

Year: 31885 Days

Day: 15 Hours

Environment

Temp: -202 °C

Axial Tilt: 75.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 111,876,291 km

• M1: 47,273 km (0.102 R)
• M2: 165,904 km (0.119 R)
• M3: 316,399 km (0.118 R)
• M4: 463,753 km (0.112 R)
• M5: 863,778 km (0.081 R)
• M6: 1,221,915 km (0.09 R)
• M7: 1,390,213 km (0.05 R)
• M8: 1,573,919 km (0.104 R)
• M9: 1,711,998 km (0.037 R)
• M10: 2,690,817 km (0.032 R)
• M11: 4,800,895 km (0.056 R)
• M12: 7,150,778 km (0.05 R)
• M13: 7,982,393 km (0.099 R)
• M14: 8,214,718 km (0.09 R)
• M15: 8,571,360 km (0.115 R)
• M16: 9,443,964 km (0.047 R)
• M17: 12,492,170 km (0.055 R)
• M18: 14,794,332 km (0.089 R)
• M19: 15,680,699 km (0.109 R)
• M20: 15,953,416 km (0.115 R)
• M21: 16,790,416 km (0.058 R)
• M22: 24,081,816 km (0.073 R)
• M23: 25,680,868 km (0.094 R)
• M24: 25,932,940 km (0.118 R)
• M25: 35,991,303 km (0.107 R)
• M26: 36,306,954 km (0.054 R)
• M27: 36,465,528 km (0.097 R)
• M28: 42,839,445 km (0.092 R)
• M29: 45,363,011 km (0.03 R)
• M30: 51,699,977 km (0.086 R)
• M31: 56,449,111 km (0.107 R)
• M32: 59,257,961 km (0.087 R)
• M33: 64,918,594 km (0.072 R)
• M34: 69,210,108 km (0.068 R)
• M35: 72,927,915 km (0.074 R)
• M36: 77,037,667 km (0.113 R)
• M37: 78,883,256 km (0.055 R)
• M38: 94,720,585 km (0.036 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 302 - 18,210 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit