🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.5

Radius: 12.6

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.46 AU - 0.64 AU

Year: 282 Days

Day: 11 Hours

Environment

Temp: -139 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,611,751 km

• M1: 156,629 km (0.11 R)
• M2: 604,375 km (0.113 R)
• M3: 1,074,113 km (0.079 R)
• M4: 1,718,730 km (0.05 R)
• M5: 2,356,765 km (0.105 R)
• M6: 3,129,587 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.2

Radius: 10.4

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.68 AU - 0.92 AU

Year: 494 Days

Day: 7.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,611,751 km

• M1: 129,402 km (0.075 R)
• M2: 465,399 km (0.068 R)
• M3: 860,637 km (0.12 R)
• M4: 1,304,493 km (0.079 R)
• M5: 1,759,271 km (0.074 R)
• M6: 2,104,992 km (0.117 R)
• M7: 2,983,430 km (0.088 R)
• M8: 3,672,179 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.7

Radius: 13.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.85 AU - 1.15 AU

Year: 690 Days

Day: 6.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,611,751 km

• M1: 170,392 km (0.097 R)
• M2: 702,212 km (0.043 R)
• M3: 1,492,388 km (0.073 R)
• M4: 2,012,391 km (0.103 R)
• M5: 2,458,791 km (0.072 R)
• M6: 3,111,187 km (0.032 R)
• M7: 3,701,051 km (0.039 R)
• M8: 4,440,214 km (0.12 R)
• M9: 5,140,781 km (0.113 R)
• M10: 6,213,996 km (0.032 R)
• M11: 6,906,186 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.3

Radius: 11.1

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.21 AU - 1.99 AU

Year: 1397 Days

Day: 9.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,611,751 km

• M1: 138,079 km (0.095 R)
• M2: 489,335 km (0.106 R)
• M3: 1,070,223 km (0.061 R)
• M4: 1,485,956 km (0.044 R)
• M5: 1,861,596 km (0.073 R)
• M6: 2,578,768 km (0.115 R)
• M7: 2,972,360 km (0.086 R)
• M8: 4,386,359 km (0.08 R)
• M9: 4,984,751 km (0.092 R)
• M10: 6,186,919 km (0.079 R)
• M11: 6,607,439 km (0.071 R)
• M12: 6,983,079 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.6

Radius: 13.3

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.56 AU - 1.84 AU

Year: 1530 Days

Day: 11.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,611,751 km

• M1: 165,455 km (0.115 R)
• M2: 615,446 km (0.034 R)
• M3: 1,876,855 km (0.112 R)
• M4: 2,436,201 km (0.082 R)
• M5: 3,718,105 km (0.081 R)
• M6: 4,268,476 km (0.049 R)
• M7: 4,834,704 km (0.092 R)
• M8: 5,492,336 km (0.097 R)
• M9: 6,484,619 km (0.094 R)
• M10: 7,210,318 km (0.058 R)
• M11: 8,539,645 km (0.067 R)
• M12: 9,322,491 km (0.109 R)
• M13: 11,165,835 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.2

Radius: 11.8

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.62 AU - 2.06 AU

Year: 1723 Days

Day: 9.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,611,751 km

• M1: 146,756 km (0.102 R)
• M2: 567,874 km (0.074 R)
• M3: 1,053,169 km (0.053 R)
• M4: 1,468,303 km (0.109 R)
• M5: 3,260,934 km (0.059 R)
• M6: 4,265,035 km (0.068 R)
• M7: 4,986,097 km (0.09 R)
• M8: 6,671,167 km (0.12 R)
• M9: 7,718,353 km (0.074 R)
• M10: 8,871,902 km (0.078 R)
• M11: 9,490,339 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.5

Radius: 9.4

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.1 AU - 4.86 AU

Year: 5481 Days

Day: 10.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,611,751 km

• M1: 117,883 km (0.067 R)
• M2: 415,433 km (0.1 R)
• M3: 717,920 km (0.101 R)
• M4: 1,391,111 km (0.056 R)
• M5: 1,707,360 km (0.076 R)
• M6: 2,000,572 km (0.055 R)
• M7: 2,761,277 km (0.107 R)
• M8: 3,574,940 km (0.065 R)
• M9: 4,037,946 km (0.095 R)
• M10: 4,590,411 km (0.064 R)
• M11: 5,274,821 km (0.103 R)
• M12: 6,618,359 km (0.114 R)
• M13: 7,421,700 km (0.088 R)
• M14: 9,589,224 km (0.082 R)
• M15: 10,440,884 km (0.085 R)
• M16: 13,821,048 km (0.093 R)
• M17: 15,130,478 km (0.098 R)
• M18: 15,642,253 km (0.037 R)
• M19: 15,989,918 km (0.11 R)
• M20: 17,002,696 km (0.112 R)
• M21: 18,248,397 km (0.036 R)
• M22: 19,553,938 km (0.089 R)
• M23: 20,504,183 km (0.107 R)
• M24: 23,013,987 km (0.09 R)
• M25: 24,072,990 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744

Radius: 3.2

Gravity: 72.66 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 5.78 AU - 6.56 AU

Year: 10579 Days

Day: 21.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 94.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 35,611,751 km

• M1: 41,588 km (0.05 R)
• M2: 157,377 km (0.112 R)
• M3: 269,426 km (0.1 R)
• M4: 461,061 km (0.042 R)
• M5: 637,736 km (0.031 R)
• M6: 1,186,162 km (0.099 R)
• M7: 1,730,548 km (0.106 R)
• M8: 2,066,545 km (0.026 R)
• M9: 2,194,002 km (0.087 R)
• M10: 4,791,470 km (0.113 R)
• M11: 5,728,102 km (0.049 R)
• M12: 7,521,183 km (0.075 R)
• M13: 8,872,949 km (0.091 R)
• M14: 9,757,222 km (0.074 R)
• M15: 10,752,796 km (0.118 R)
• M16: 14,077,309 km (0.111 R)
• M17: 14,338,058 km (0.104 R)
• M18: 16,758,701 km (0.09 R)
• M19: 18,026,992 km (0.101 R)
• M20: 21,950,795 km (0.093 R)
• M21: 26,605,233 km (0.087 R)
• M22: 26,903,681 km (0.073 R)
• M23: 28,120,061 km (0.083 R)
• M24: 28,950,928 km (0.098 R)
• M25: 29,161,263 km (0.081 R)
• M26: 29,372,495 km (0.076 R)
• M27: 31,430,812 km (0.119 R)
• M28: 33,122,165 km (0.067 R)
• M29: 33,699,164 km (0.099 R)
• M30: 38,431,843 km (0.117 R)
• M31: 39,454,344 km (0.104 R)
• M32: 39,712,849 km (0.067 R)
• M33: 45,688,386 km (0.105 R)
• M34: 48,001,768 km (0.1 R)
• M35: 49,636,723 km (0.04 R)
• M36: 50,391,893 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.6

Radius: 4.8

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 7.93 AU - 11.47 AU

Year: 20853 Days

Day: 15.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,611,751 km

• M1: 109,655 km (0.118 R)
• M2: 1,000,511 km (0.088 R)
• M3: 2,474,349 km (0.106 R)
• M4: 6,437,944 km (0.117 R)
• M5: 9,913,552 km (0.071 R)
• M6: 15,604,703 km (0.06 R)
• M7: 31,219,879 km (0.05 R)
• M8: 33,214,617 km (0.056 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: 389 - 16,291 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit