🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.4

Radius: 11.1

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.73 AU - 0.85 AU

Year: 461 Days

Day: 7.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,864,426 km

• M1: 138,079 km (0.118 R)
• M2: 601,832 km (0.1 R)
• M3: 987,346 km (0.098 R)
• M4: 1,376,300 km (0.027 R)
• M5: 1,737,130 km (0.107 R)
• M6: 2,610,333 km (0.062 R)
• M7: 3,120,761 km (0.11 R)
• M8: 3,594,238 km (0.053 R)
• M9: 4,342,976 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.3

Radius: 13.8

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.68 AU - 0.96 AU

Year: 487 Days

Day: 14.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,864,426 km

• M1: 172,935 km (0.072 R)
• M2: 700,716 km (0.096 R)
• M3: 1,221,018 km (0.117 R)
• M4: 1,768,845 km (0.096 R)
• M5: 2,373,221 km (0.056 R)
• M6: 2,821,865 km (0.111 R)
• M7: 3,267,217 km (0.062 R)
• M8: 3,733,364 km (0.105 R)
• M9: 4,186,646 km (0.044 R)
• M10: 5,008,686 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.2

Radius: 9.9

Gravity: 10.16 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.34 AU - 1.52 AU

Year: 1122 Days

Day: 10.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,864,426 km

• M1: 123,119 km (0.112 R)
• M2: 589,116 km (0.073 R)
• M3: 966,402 km (0.113 R)
• M4: 1,340,696 km (0.088 R)
• M5: 1,696,141 km (0.089 R)
• M6: 2,060,112 km (0.12 R)
• M7: 2,563,659 km (0.037 R)
• M8: 2,879,310 km (0.091 R)
• M9: 3,221,141 km (0.101 R)
• M10: 3,558,335 km (0.106 R)
• M11: 3,952,974 km (0.082 R)
• M12: 4,376,935 km (0.054 R)
• M13: 4,830,964 km (0.077 R)
• M14: 5,485,006 km (0.066 R)
• M15: 5,811,428 km (0.072 R)
• M16: 6,127,828 km (0.114 R)
• M17: 7,696,960 km (0.047 R)
• M18: 8,079,332 km (0.026 R)
• M19: 9,674,046 km (0.078 R)
• M20: 10,087,384 km (0.042 R)
• M21: 11,259,185 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.1

Radius: 13.2

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.06 AU - 3.2 AU

Year: 2798 Days

Day: 12.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,864,426 km

• M1: 164,707 km (0.103 R)
• M2: 579,093 km (0.087 R)
• M3: 1,240,765 km (0.118 R)
• M4: 1,697,188 km (0.026 R)
• M5: 2,211,206 km (0.08 R)
• M6: 3,244,628 km (0.1 R)
• M7: 3,846,760 km (0.097 R)
• M8: 4,596,395 km (0.116 R)
• M9: 5,175,488 km (0.095 R)
• M10: 5,694,892 km (0.049 R)
• M11: 6,387,380 km (0.049 R)
• M12: 7,210,767 km (0.101 R)
• M13: 7,833,692 km (0.09 R)
• M14: 9,247,243 km (0.111 R)
• M15: 10,560,862 km (0.083 R)
• M16: 11,503,478 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.7

Radius: 11

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.07 AU - 3.17 AU

Year: 3615 Days

Day: 11 Hours

Environment

Temp: -201 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 29,864,426 km

• M1: 137,032 km (0.079 R)
• M2: 671,694 km (0.106 R)
• M3: 1,718,880 km (0.111 R)
• M4: 2,185,924 km (0.047 R)
• M5: 2,659,252 km (0.105 R)
• M6: 3,079,771 km (0.118 R)
• M7: 4,329,811 km (0.104 R)
• M8: 6,903,194 km (0.033 R)
• M9: 8,598,437 km (0.039 R)
• M10: 9,414,493 km (0.057 R)
• M11: 10,754,441 km (0.102 R)
• M12: 12,043,825 km (0.092 R)
• M13: 14,336,712 km (0.114 R)
• M14: 15,792,449 km (0.082 R)
• M15: 16,583,074 km (0.104 R)
• M16: 17,677,831 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 193.8

Radius: 6.8

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.83 AU - 6.61 AU

Year: 10176 Days

Day: 22.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,864,426 km

• M1: 94,097 km (0.082 R)
• M2: 858,991 km (0.069 R)
• M3: 2,863,752 km (0.05 R)
• M4: 3,256,446 km (0.109 R)
• M5: 3,982,445 km (0.103 R)
• M6: 8,844,525 km (0.062 R)
• M7: 10,697,594 km (0.09 R)
• M8: 10,975,248 km (0.115 R)
• M9: 14,693,353 km (0.095 R)
• M10: 14,979,085 km (0.078 R)
• M11: 25,954,931 km (0.094 R)
• M12: 28,795,197 km (0.042 R)
• M13: 29,786,133 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.3

Radius: 3.9

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 6.66 AU - 7.02 AU

Year: 11735 Days

Day: 16.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,864,426 km

• M1: 88,113 km (0.115 R)
• M2: 374,743 km (0.115 R)
• M3: 542,891 km (0.08 R)
• M4: 806,183 km (0.057 R)
• M5: 1,062,594 km (0.04 R)
• M6: 1,189,602 km (0.074 R)
• M7: 1,723,667 km (0.072 R)
• M8: 3,026,963 km (0.084 R)
• M9: 3,223,834 km (0.072 R)
• M10: 3,980,351 km (0.095 R)
• M11: 8,012,013 km (0.095 R)
• M12: 9,382,330 km (0.103 R)
• M13: 11,935,816 km (0.084 R)
• M14: 20,436,565 km (0.088 R)
• M15: 25,370,452 km (0.091 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 19,776 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit