🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.7

Radius: 8.8

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.47 AU - 0.69 AU

Year: 305 Days

Day: 5.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,512,284 km

• M1: 109,506 km (0.092 R)
• M2: 399,277 km (0.053 R)
• M3: 732,880 km (0.1 R)
• M4: 1,094,458 km (0.103 R)
• M5: 1,506,301 km (0.095 R)
• M6: 1,978,731 km (0.077 R)
• M7: 2,321,310 km (0.103 R)
• M8: 2,661,645 km (0.117 R)
• M9: 3,127,044 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.3

Radius: 15

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.74 AU - 0.82 AU

Year: 476 Days

Day: 5.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,512,284 km

• M1: 186,698 km (0.074 R)
• M2: 653,443 km (0.104 R)
• M3: 1,284,148 km (0.063 R)
• M4: 2,225,717 km (0.082 R)
• M5: 3,604,860 km (0.109 R)
• M6: 4,447,545 km (0.059 R)
• M7: 5,155,591 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.7

Radius: 9.1

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.94 AU - 0.96 AU

Year: 639 Days

Day: 14.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,512,284 km

• M1: 113,395 km (0.043 R)
• M2: 411,544 km (0.12 R)
• M3: 840,142 km (0.12 R)
• M4: 1,513,631 km (0.099 R)
• M5: 1,929,813 km (0.092 R)
• M6: 2,305,154 km (0.091 R)
• M7: 2,739,586 km (0.116 R)
• M8: 3,300,727 km (0.043 R)
• M9: 4,061,881 km (0.113 R)
• M10: 4,364,667 km (0.108 R)
• M11: 4,951,390 km (0.097 R)
• M12: 5,264,050 km (0.091 R)
• M13: 6,113,018 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.4

Radius: 11.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.15 AU - 1.55 AU

Year: 1083 Days

Day: 9.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,512,284 km

• M1: 140,921 km (0.103 R)
• M2: 542,292 km (0.097 R)
• M3: 1,019,659 km (0.111 R)
• M4: 1,528,292 km (0.077 R)
• M5: 1,963,622 km (0.058 R)
• M6: 2,583,705 km (0.036 R)
• M7: 4,057,693 km (0.074 R)
• M8: 6,351,178 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.1

Radius: 8.1

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.14 AU - 4.74 AU

Year: 5398 Days

Day: 12.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,512,284 km

• M1: 100,679 km (0.035 R)
• M2: 387,458 km (0.119 R)
• M3: 643,271 km (0.073 R)
• M4: 1,094,308 km (0.087 R)
• M5: 1,407,566 km (0.112 R)
• M6: 2,410,022 km (0.118 R)
• M7: 3,035,341 km (0.087 R)
• M8: 4,017,301 km (0.104 R)
• M9: 4,748,536 km (0.103 R)
• M10: 5,565,490 km (0.107 R)
• M11: 5,923,028 km (0.087 R)
• M12: 6,593,077 km (0.078 R)
• M13: 8,328,712 km (0.092 R)
• M14: 9,169,153 km (0.096 R)
• M15: 12,675,278 km (0.079 R)
• M16: 13,935,042 km (0.088 R)
• M17: 14,338,956 km (0.038 R)
• M18: 19,436,803 km (0.09 R)
• M19: 19,941,097 km (0.069 R)
• M20: 20,454,218 km (0.03 R)
• M21: 22,457,034 km (0.086 R)
• M22: 24,150,781 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.1

Radius: 14.3

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.64 AU - 4.72 AU

Year: 5899 Days

Day: 14.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,512,284 km

• M1: 178,470 km (0.12 R)
• M2: 1,167,013 km (0.11 R)
• M3: 1,746,705 km (0.086 R)
• M4: 2,674,511 km (0.119 R)
• M5: 3,931,731 km (0.026 R)
• M6: 5,742,165 km (0.116 R)
• M7: 6,278,473 km (0.086 R)
• M8: 7,885,902 km (0.115 R)
• M9: 14,707,565 km (0.05 R)
• M10: 15,232,654 km (0.074 R)
• M11: 16,940,612 km (0.058 R)
• M12: 20,023,525 km (0.035 R)
• M13: 24,618,574 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 803.9

Radius: 6.5

Gravity: 19.03 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 6.8 AU - 7.62 AU

Year: 13363 Days

Day: 17.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 36,512,284 km

• M1: 86,019 km (0.102 R)
• M2: 291,716 km (0.089 R)
• M3: 769,382 km (0.111 R)
• M4: 1,327,232 km (0.095 R)
• M5: 1,559,558 km (0.115 R)
• M6: 2,891,577 km (0.062 R)
• M7: 3,183,742 km (0.1 R)
• M8: 3,389,439 km (0.099 R)
• M9: 4,427,648 km (0.087 R)
• M10: 5,479,172 km (0.03 R)
• M11: 6,004,859 km (0.081 R)
• M12: 6,813,435 km (0.088 R)
• M13: 7,112,930 km (0.099 R)
• M14: 9,356,748 km (0.074 R)
• M15: 10,328,536 km (0.097 R)
• M16: 14,122,787 km (0.112 R)
• M17: 15,325,853 km (0.091 R)
• M18: 16,139,665 km (0.082 R)
• M19: 20,734,714 km (0.116 R)
• M20: 21,546,282 km (0.102 R)
• M21: 23,716,498 km (0.06 R)
• M22: 24,206,880 km (0.098 R)
• M23: 24,604,063 km (0.105 R)
• M24: 24,904,754 km (0.055 R)
• M25: 29,263,587 km (0.04 R)
• M26: 37,304,922 km (0.116 R)
• M27: 39,454,494 km (0.098 R)
• M28: 39,866,636 km (0.082 R)
• M29: 43,121,586 km (0.091 R)
• M30: 46,702,361 km (0.096 R)
• M31: 49,833,743 km (0.088 R)
• M32: 54,279,343 km (0.094 R)
• M33: 54,618,781 km (0.094 R)
• M34: 55,645,621 km (0.075 R)
• M35: 59,520,954 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 154.3

Radius: 7.5

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.4 AU - 7.48 AU

Year: 14008 Days

Day: 16.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,512,284 km

• M1: 93,349 km (0.108 R)
• M2: 359,184 km (0.112 R)
• M3: 609,462 km (0.108 R)
• M4: 1,309,131 km (0.117 R)
• M5: 2,029,146 km (0.111 R)
• M6: 2,287,052 km (0.084 R)
• M7: 3,259,438 km (0.058 R)
• M8: 3,569,256 km (0.102 R)
• M9: 7,053,091 km (0.1 R)
• M10: 7,611,091 km (0.106 R)
• M11: 8,198,113 km (0.033 R)
• M12: 11,443,788 km (0.092 R)
• M13: 11,953,468 km (0.066 R)
• M14: 12,531,514 km (0.074 R)
• M15: 13,073,059 km (0.088 R)
• M16: 14,319,209 km (0.081 R)
• M17: 17,375,942 km (0.107 R)
• M18: 17,845,530 km (0.116 R)
• M19: 22,856,161 km (0.08 R)
• M20: 27,628,184 km (0.059 R)
• M21: 28,360,016 km (0.057 R)
• M22: 35,860,704 km (0.11 R)
• M23: 36,403,146 km (0.1 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 412 - 12,138 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit