🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.44 AU - 0.64 AU

Year: 260 Days

Day: 41.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 59,447,348 km

• M1: 64,177 km (0.119 R)
• M2: 93,947 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.1

Radius: 10.2

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.76 AU - 0.8 AU

Year: 452 Days

Day: 13.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,447,348 km

• M1: 128,804 km (0.087 R)
• M2: 472,280 km (0.106 R)
• M3: 832,811 km (0.087 R)
• M4: 1,241,962 km (0.111 R)
• M5: 1,621,043 km (0.053 R)
• M6: 2,026,602 km (0.036 R)
• M7: 2,470,310 km (0.054 R)
• M8: 2,858,516 km (0.104 R)
• M9: 3,567,460 km (0.063 R)
• M10: 4,506,187 km (0.116 R)
• M11: 5,025,740 km (0.085 R)
• M12: 5,914,950 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.3

Radius: 14.9

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.29 AU - 1.83 AU

Year: 1278 Days

Day: 11.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,447,348 km

• M1: 185,352 km (0.065 R)
• M2: 652,396 km (0.088 R)
• M3: 1,172,548 km (0.104 R)
• M4: 1,678,488 km (0.115 R)
• M5: 2,502,174 km (0.102 R)
• M6: 3,451,522 km (0.1 R)
• M7: 4,034,655 km (0.086 R)
• M8: 4,719,663 km (0.078 R)
• M9: 5,244,453 km (0.117 R)
• M10: 5,725,410 km (0.098 R)
• M11: 6,524,861 km (0.115 R)
• M12: 7,011,203 km (0.098 R)
• M13: 9,968,155 km (0.072 R)
• M14: 10,646,880 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.5

Radius: 13.6

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.47 AU - 1.75 AU

Year: 1340 Days

Day: 12.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 77.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,447,348 km

• M1: 169,195 km (0.105 R)
• M2: 669,450 km (0.07 R)
• M3: 1,267,842 km (0.077 R)
• M4: 1,740,422 km (0.12 R)
• M5: 2,332,081 km (0.116 R)
• M6: 3,718,405 km (0.105 R)
• M7: 4,599,686 km (0.115 R)
• M8: 5,261,507 km (0.068 R)
• M9: 5,854,812 km (0.087 R)
• M10: 6,552,686 km (0.118 R)
• M11: 7,218,995 km (0.116 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 696.5

Radius: 7.1

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 5.15 AU - 7.09 AU

Year: 9932 Days

Day: 23.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,447,348 km

• M1: 88,861 km (0.068 R)
• M2: 336,296 km (0.063 R)
• M3: 949,647 km (0.112 R)
• M4: 1,244,355 km (0.114 R)
• M5: 1,717,234 km (0.087 R)
• M6: 2,737,043 km (0.101 R)
• M7: 3,199,599 km (0.105 R)
• M8: 5,188,653 km (0.097 R)
• M9: 5,896,998 km (0.09 R)
• M10: 6,329,785 km (0.044 R)
• M11: 7,463,288 km (0.047 R)
• M12: 8,320,035 km (0.115 R)
• M13: 9,874,507 km (0.116 R)
• M14: 12,006,725 km (0.102 R)
• M15: 14,045,894 km (0.117 R)
• M16: 14,817,519 km (0.112 R)
• M17: 15,213,804 km (0.093 R)
• M18: 17,815,610 km (0.055 R)
• M19: 19,891,580 km (0.052 R)
• M20: 21,029,122 km (0.115 R)
• M21: 21,952,889 km (0.1 R)
• M22: 22,381,487 km (0.096 R)
• M23: 24,886,204 km (0.094 R)
• M24: 27,472,602 km (0.04 R)
• M25: 28,474,459 km (0.04 R)
• M26: 31,843,702 km (0.092 R)
• M27: 32,614,580 km (0.037 R)
• M28: 35,823,005 km (0.053 R)
• M29: 43,663,430 km (0.1 R)
• M30: 45,579,629 km (0.09 R)
• M31: 47,837,360 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787

Radius: 5

Gravity: 31.48 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.72 AU - 7.84 AU

Year: 12886 Days

Day: 23.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,447,348 km

• M1: 62,233 km (0.085 R)
• M2: 348,862 km (0.074 R)
• M3: 775,366 km (0.076 R)
• M4: 1,270,385 km (0.095 R)
• M5: 1,649,616 km (0.066 R)
• M6: 2,949,920 km (0.106 R)
• M7: 5,366,076 km (0.064 R)
• M8: 6,188,415 km (0.053 R)
• M9: 6,963,631 km (0.07 R)
• M10: 8,032,658 km (0.09 R)
• M11: 8,704,651 km (0.063 R)
• M12: 9,996,429 km (0.104 R)
• M13: 10,379,848 km (0.115 R)
• M14: 11,176,008 km (0.095 R)
• M15: 19,066,249 km (0.045 R)
• M16: 19,570,693 km (0.103 R)
• M17: 22,692,501 km (0.073 R)
• M18: 23,164,033 km (0.109 R)
• M19: 23,450,065 km (0.119 R)
• M20: 23,931,919 km (0.074 R)
• M21: 26,753,186 km (0.109 R)
• M22: 33,165,998 km (0.11 R)
• M23: 36,532,099 km (0.073 R)
• M24: 37,834,498 km (0.109 R)
• M25: 38,098,688 km (0.098 R)
• M26: 41,225,284 km (0.047 R)
• M27: 41,645,354 km (0.075 R)
• M28: 42,209,787 km (0.098 R)
• M29: 44,079,461 km (0.076 R)
• M30: 48,603,600 km (0.103 R)
• M31: 58,384,758 km (0.11 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 17,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit