🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.9

Radius: 12.1

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.54 AU - 0.6 AU

Year: 292 Days

Day: 8.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 61,664,899 km

• M1: 150,645 km (0.051 R)
• M2: 681,119 km (0.117 R)
• M3: 1,276,967 km (0.094 R)
• M4: 2,179,342 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.3

Radius: 9.4

Gravity: 9.88 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.83 AU - 1.23 AU

Year: 709 Days

Day: 6.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,664,899 km

• M1: 116,986 km (0.049 R)
• M2: 426,952 km (0.073 R)
• M3: 1,182,571 km (0.102 R)
• M4: 1,508,096 km (0.065 R)
• M5: 2,420,194 km (0.117 R)
• M6: 2,771,450 km (0.085 R)
• M7: 3,195,710 km (0.056 R)
• M8: 3,563,122 km (0.102 R)
• M9: 4,097,037 km (0.084 R)
• M10: 4,399,823 km (0.104 R)
• M11: 5,177,283 km (0.036 R)
• M12: 5,608,723 km (0.04 R)
• M13: 5,942,775 km (0.106 R)
• M14: 6,269,497 km (0.114 R)
• M15: 6,914,264 km (0.094 R)
• M16: 8,037,295 km (0.104 R)
• M17: 8,694,179 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.3

Radius: 10.5

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.96 AU - 1.38 AU

Year: 858 Days

Day: 14.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 110.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,664,899 km

• M1: 131,048 km (0.089 R)
• M2: 547,977 km (0.1 R)
• M3: 1,118,094 km (0.084 R)
• M4: 2,732,256 km (0.044 R)
• M5: 3,891,041 km (0.06 R)
• M6: 4,307,521 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.1

Radius: 13.5

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.29 AU - 1.77 AU

Year: 1284 Days

Day: 14.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,664,899 km

• M1: 167,849 km (0.097 R)
• M2: 591,510 km (0.094 R)
• M3: 1,248,693 km (0.12 R)
• M4: 1,763,460 km (0.117 R)
• M5: 2,290,343 km (0.038 R)
• M6: 2,813,637 km (0.044 R)
• M7: 3,401,257 km (0.116 R)
• M8: 4,104,816 km (0.077 R)
• M9: 4,903,669 km (0.068 R)
• M10: 6,885,840 km (0.116 R)
• M11: 7,823,071 km (0.104 R)
• M12: 9,052,317 km (0.077 R)
• M13: 10,144,830 km (0.098 R)
• M14: 11,011,899 km (0.088 R)
• M15: 11,569,600 km (0.101 R)
• M16: 12,628,753 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.4

Radius: 10.3

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.97 AU - 2.67 AU

Year: 2397 Days

Day: 7.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,664,899 km

• M1: 128,205 km (0.112 R)
• M2: 572,361 km (0.087 R)
• M3: 1,830,180 km (0.093 R)
• M4: 2,822,762 km (0.083 R)
• M5: 3,205,882 km (0.076 R)
• M6: 4,015,207 km (0.049 R)
• M7: 4,335,496 km (0.092 R)
• M8: 4,707,546 km (0.111 R)
• M9: 9,195,033 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.2

Radius: 14.6

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.29 AU - 3.05 AU

Year: 2959 Days

Day: 9.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,664,899 km

• M1: 181,612 km (0.03 R)
• M2: 641,775 km (0.102 R)
• M3: 1,130,212 km (0.065 R)
• M4: 1,798,765 km (0.1 R)
• M5: 2,711,162 km (0.04 R)
• M6: 4,183,205 km (0.11 R)
• M7: 5,127,467 km (0.043 R)
• M8: 5,605,731 km (0.036 R)
• M9: 7,576,085 km (0.048 R)
• M10: 8,112,244 km (0.063 R)
• M11: 9,134,895 km (0.045 R)
• M12: 10,208,260 km (0.099 R)
• M13: 11,694,066 km (0.097 R)
• M14: 12,450,432 km (0.102 R)
• M15: 13,158,778 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.8

Radius: 11.7

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.75 AU - 3.49 AU

Year: 3738 Days

Day: 11.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,664,899 km

• M1: 145,858 km (0.117 R)
• M2: 514,916 km (0.099 R)
• M3: 1,153,848 km (0.118 R)
• M4: 1,630,916 km (0.037 R)
• M5: 2,768,907 km (0.117 R)
• M6: 3,619,072 km (0.099 R)
• M7: 4,492,873 km (0.103 R)
• M8: 5,133,002 km (0.112 R)
• M9: 5,529,287 km (0.116 R)
• M10: 6,937,751 km (0.095 R)
• M11: 7,691,724 km (0.11 R)
• M12: 8,141,715 km (0.11 R)
• M13: 8,943,110 km (0.077 R)
• M14: 9,440,972 km (0.095 R)
• M15: 12,306,669 km (0.088 R)
• M16: 12,923,311 km (0.095 R)
• M17: 13,560,449 km (0.099 R)
• M18: 14,950,662 km (0.057 R)
• M19: 15,434,611 km (0.09 R)
• M20: 17,416,633 km (0.102 R)
• M21: 18,012,780 km (0.108 R)
• M22: 19,754,848 km (0.036 R)
• M23: 22,364,732 km (0.055 R)
• M24: 23,283,413 km (0.111 R)
• M25: 23,715,900 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.7

Radius: 8.3

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.23 AU - 4.83 AU

Year: 5487 Days

Day: 7.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 74.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,664,899 km

• M1: 105,466 km (0.104 R)
• M2: 399,576 km (0.042 R)
• M3: 886,218 km (0.076 R)
• M4: 1,300,155 km (0.117 R)
• M5: 1,913,058 km (0.094 R)
• M6: 2,690,069 km (0.098 R)
• M7: 2,968,770 km (0.104 R)
• M8: 3,527,069 km (0.089 R)
• M9: 3,862,019 km (0.103 R)
• M10: 4,218,211 km (0.111 R)
• M11: 4,688,248 km (0.093 R)
• M12: 5,267,790 km (0.102 R)
• M13: 5,759,668 km (0.114 R)
• M14: 7,170,376 km (0.074 R)
• M15: 7,484,531 km (0.104 R)
• M16: 8,869,359 km (0.05 R)
• M17: 9,528,337 km (0.083 R)
• M18: 9,869,869 km (0.119 R)
• M19: 10,417,547 km (0.117 R)
• M20: 11,745,078 km (0.064 R)
• M21: 12,494,414 km (0.06 R)
• M22: 13,042,391 km (0.11 R)
• M23: 15,919,308 km (0.063 R)
• M24: 17,448,946 km (0.069 R)
• M25: 18,307,488 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 484.8

Radius: 4.3

Gravity: 26.22 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 6.91 AU - 10.45 AU

Year: 17345 Days

Day: 21.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,664,899 km

• M1: 86,168 km (0.114 R)
• M2: 287,378 km (0.12 R)
• M3: 576,550 km (0.117 R)
• M4: 1,700,479 km (0.106 R)
• M5: 4,056,047 km (0.107 R)
• M6: 4,683,610 km (0.11 R)
• M7: 5,519,413 km (0.073 R)
• M8: 6,208,312 km (0.083 R)
• M9: 10,529,297 km (0.097 R)
• M10: 13,900,933 km (0.09 R)
• M11: 14,666,276 km (0.063 R)
• M12: 15,385,991 km (0.117 R)
• M13: 16,356,433 km (0.105 R)
• M14: 17,366,966 km (0.101 R)
• M15: 22,385,526 km (0.09 R)
• M16: 28,621,813 km (0.047 R)
• M17: 37,095,036 km (0.105 R)
• M18: 57,687,333 km (0.109 R)
• M19: 58,397,474 km (0.072 R)
• M20: 59,293,116 km (0.052 R)
• M21: 61,480,237 km (0.106 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 17,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit