🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.5 AU - 0.62 AU

Year: 154 Days

Day: 44.2 Hours

Environment

Temp: 186 °C

Axial Tilt: 10.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 106,533,624 km

• M1: 39,344 km (0.062 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.55 AU - 0.83 AU

Year: 210 Days

Day: 43.5 Hours

Environment

Temp: 111 °C

Axial Tilt: 24.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 106,533,624 km

• M1: 115,789 km (0.108 R)
• M2: 234,121 km (0.069 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.66 AU - 1 AU

Year: 278 Days

Day: 40.8 Hours

Environment

Temp: 134 °C

Axial Tilt: 36.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 106,533,624 km

• M1: 71,059 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.86 AU - 0.94 AU

Year: 313 Days

Day: 18.1 Hours

Environment

Temp: 156 °C

Axial Tilt: 35.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.01 AU - 1.05 AU

Year: 384 Days

Day: 14.4 Hours

Environment

Temp: 17 °C

Axial Tilt: 35.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 106,533,624 km

• M1: 18,849 km (0.111 R)
• M2: 184,753 km (0.076 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.99 AU - 2.63 AU

Year: 1289 Days

Day: 22.5 Hours

Environment

Temp: -90 °C

Axial Tilt: 144.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.42 AU - 3.48 AU

Year: 1860 Days

Day: 19.7 Hours

Environment

Temp: -100 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.05 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.3

Radius: 10.6

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.94 AU - 6.36 AU

Year: 4290 Days

Day: 11.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 106,533,624 km

• M1: 131,945 km (0.098 R)
• M2: 648,058 km (0.105 R)
• M3: 1,078,301 km (0.117 R)
• M4: 1,518,119 km (0.054 R)
• M5: 2,005,060 km (0.052 R)
• M6: 2,821,416 km (0.064 R)
• M7: 3,336,332 km (0.089 R)
• M8: 3,779,441 km (0.046 R)
• M9: 4,143,263 km (0.037 R)
• M10: 4,968,145 km (0.118 R)
• M11: 5,839,702 km (0.111 R)
• M12: 6,234,192 km (0.074 R)
• M13: 6,942,688 km (0.088 R)
• M14: 7,351,090 km (0.088 R)
• M15: 8,405,156 km (0.112 R)
• M16: 9,474,482 km (0.043 R)
• M17: 10,721,530 km (0.082 R)
• M18: 11,454,709 km (0.068 R)
• M19: 12,717,165 km (0.103 R)
• M20: 13,802,648 km (0.118 R)
• M21: 15,287,855 km (0.062 R)
• M22: 18,573,024 km (0.103 R)
• M23: 20,311,352 km (0.105 R)
• M24: 22,744,711 km (0.093 R)
• M25: 24,108,744 km (0.063 R)
• M26: 26,915,798 km (0.094 R)
• M27: 28,182,892 km (0.081 R)
• M28: 29,489,480 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.6

Radius: 12.9

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.32 AU - 8.9 AU

Year: 7706 Days

Day: 10.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 106,533,624 km

• M1: 161,566 km (0.111 R)
• M2: 569,519 km (0.025 R)
• M3: 1,044,343 km (0.037 R)
• M4: 1,455,886 km (0.103 R)
• M5: 3,010,508 km (0.109 R)
• M6: 3,455,412 km (0.085 R)
• M7: 3,944,297 km (0.083 R)
• M8: 4,862,380 km (0.103 R)
• M9: 7,531,654 km (0.086 R)
• M10: 9,114,998 km (0.063 R)
• M11: 10,100,848 km (0.091 R)
• M12: 11,865,654 km (0.032 R)
• M13: 12,658,673 km (0.104 R)
• M14: 16,704,248 km (0.107 R)
• M15: 17,836,405 km (0.119 R)
• M16: 19,304,708 km (0.079 R)
• M17: 21,386,063 km (0.102 R)
• M18: 23,042,410 km (0.109 R)
• M19: 26,698,283 km (0.114 R)
• M20: 28,710,674 km (0.112 R)
• M21: 31,316,220 km (0.109 R)
• M22: 35,137,847 km (0.066 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.2

Radius: 6.8

Gravity: 15.83 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 16.45 AU - 22.91 AU

Year: 32049 Days

Day: 18.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 106,533,624 km

• M1: 84,672 km (0.047 R)
• M2: 364,271 km (0.053 R)
• M3: 645,365 km (0.097 R)
• M4: 1,708,258 km (0.102 R)
• M5: 2,322,657 km (0.103 R)
• M6: 3,772,559 km (0.113 R)
• M7: 4,050,811 km (0.12 R)
• M8: 4,417,924 km (0.089 R)
• M9: 5,009,733 km (0.102 R)
• M10: 5,608,723 km (0.099 R)
• M11: 6,018,322 km (0.076 R)
• M12: 6,545,804 km (0.06 R)
• M13: 7,692,771 km (0.103 R)
• M14: 10,177,891 km (0.113 R)
• M15: 11,565,112 km (0.071 R)
• M16: 14,455,792 km (0.08 R)
• M17: 17,411,397 km (0.06 R)
• M18: 18,380,941 km (0.083 R)
• M19: 20,746,831 km (0.064 R)
• M20: 21,069,663 km (0.11 R)
• M21: 23,077,566 km (0.104 R)
• M22: 27,212,002 km (0.063 R)
• M23: 27,599,012 km (0.099 R)
• M24: 27,859,013 km (0.085 R)
• M25: 34,299,351 km (0.12 R)
• M26: 36,753,354 km (0.097 R)
• M27: 45,352,988 km (0.045 R)
• M28: 46,079,136 km (0.111 R)
• M29: 53,773,104 km (0.103 R)
• M30: 55,408,059 km (0.097 R)
• M31: 59,423,715 km (0.079 R)
• M32: 78,986,479 km (0.032 R)
• M33: 87,096,030 km (0.061 R)
• M34: 94,263,862 km (0.112 R)
• M35: 97,839,999 km (0.094 R)
• M36: 104,313,847 km (0.049 R)
• M37: 106,533,580 km (0.106 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 19,115 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit