🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.5

Radius: 10.9

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.74 AU - 0.92 AU

Year: 496 Days

Day: 11.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,764,964 km

• M1: 141,669 km (0.083 R)
• M2: 656,136 km (0.105 R)
• M3: 1,019,360 km (0.108 R)
• M4: 1,365,081 km (0.105 R)
• M5: 1,783,207 km (0.105 R)
• M6: 2,138,801 km (0.074 R)
• M7: 2,752,002 km (0.092 R)
• M8: 3,607,553 km (0.07 R)
• M9: 4,509,329 km (0.108 R)
• M10: 5,079,147 km (0.081 R)
• M11: 6,116,459 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.8

Radius: 13.6

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.76 AU - 1.1 AU

Year: 588 Days

Day: 5.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,764,964 km

• M1: 170,691 km (0.113 R)
• M2: 699,819 km (0.06 R)
• M3: 1,281,156 km (0.06 R)
• M4: 2,171,862 km (0.111 R)
• M5: 3,073,787 km (0.053 R)
• M6: 3,591,396 km (0.113 R)
• M7: 4,032,411 km (0.064 R)
• M8: 4,461,756 km (0.096 R)
• M9: 5,024,544 km (0.082 R)
• M10: 5,523,453 km (0.1 R)
• M11: 6,538,325 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.2

Radius: 12.4

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.18 AU - 1.6 AU

Year: 1075 Days

Day: 9.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,764,964 km

• M1: 154,684 km (0.112 R)
• M2: 697,874 km (0.065 R)
• M3: 1,094,907 km (0.084 R)
• M4: 2,078,662 km (0.077 R)
• M5: 2,512,945 km (0.111 R)
• M6: 3,407,241 km (0.113 R)
• M7: 5,676,790 km (0.079 R)
• M8: 7,211,665 km (0.098 R)
• M9: 9,874,955 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.5

Radius: 14.2

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.34 AU - 1.46 AU

Year: 1087 Days

Day: 13.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,764,964 km

• M1: 185,202 km (0.056 R)
• M2: 728,242 km (0.086 R)
• M3: 1,306,438 km (0.086 R)
• M4: 3,309,105 km (0.103 R)
• M5: 4,762,149 km (0.119 R)
• M6: 5,231,138 km (0.12 R)
• M7: 5,711,348 km (0.115 R)
• M8: 6,940,294 km (0.059 R)
• M9: 7,787,766 km (0.113 R)
• M10: 8,441,957 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.4

Radius: 10.5

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.38 AU - 2.46 AU

Year: 2470 Days

Day: 6.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,764,964 km

• M1: 132,095 km (0.086 R)
• M2: 611,855 km (0.046 R)
• M3: 1,496,577 km (0.073 R)
• M4: 2,210,757 km (0.111 R)
• M5: 2,646,237 km (0.1 R)
• M6: 3,055,088 km (0.081 R)
• M7: 3,451,821 km (0.101 R)
• M8: 3,882,962 km (0.106 R)
• M9: 5,372,060 km (0.082 R)
• M10: 5,720,772 km (0.115 R)
• M11: 6,603,400 km (0.114 R)
• M12: 7,886,501 km (0.07 R)
• M13: 8,875,492 km (0.08 R)
• M14: 11,957,807 km (0.095 R)
• M15: 12,339,281 km (0.078 R)
• M16: 13,670,104 km (0.102 R)
• M17: 14,850,281 km (0.116 R)
• M18: 15,390,479 km (0.06 R)
• M19: 16,199,654 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.4

Radius: 10.3

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.9 AU - 3.04 AU

Year: 2547 Days

Day: 6.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,764,964 km

• M1: 146,606 km (0.101 R)
• M2: 642,822 km (0.105 R)
• M3: 1,153,848 km (0.111 R)
• M4: 1,688,212 km (0.094 R)
• M5: 2,046,948 km (0.107 R)
• M6: 2,372,473 km (0.096 R)
• M7: 2,815,582 km (0.067 R)
• M8: 5,295,914 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.3

Radius: 10.8

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.12 AU - 2.94 AU

Year: 2640 Days

Day: 12.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,764,964 km

• M1: 134,339 km (0.05 R)
• M2: 858,093 km (0.112 R)
• M3: 1,358,049 km (0.082 R)
• M4: 2,060,411 km (0.062 R)
• M5: 2,637,710 km (0.117 R)
• M6: 3,143,650 km (0.109 R)
• M7: 3,931,582 km (0.056 R)
• M8: 4,799,848 km (0.088 R)
• M9: 5,764,904 km (0.079 R)
• M10: 6,649,476 km (0.063 R)
• M11: 7,033,793 km (0.057 R)
• M12: 7,495,751 km (0.057 R)
• M13: 10,193,449 km (0.091 R)
• M14: 14,585,942 km (0.099 R)
• M15: 15,135,265 km (0.113 R)
• M16: 16,488,677 km (0.094 R)
• M17: 17,360,833 km (0.109 R)
• M18: 18,784,556 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.2

Radius: 12.4

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.2 AU - 3.3 AU

Year: 2992 Days

Day: 13.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,764,964 km

• M1: 154,235 km (0.107 R)
• M2: 612,154 km (0.096 R)
• M3: 1,013,526 km (0.114 R)
• M4: 1,508,395 km (0.108 R)
• M5: 2,140,746 km (0.043 R)
• M6: 4,120,524 km (0.1 R)
• M7: 4,634,692 km (0.071 R)
• M8: 5,213,037 km (0.093 R)
• M9: 7,822,473 km (0.094 R)
• M10: 8,674,881 km (0.098 R)
• M11: 11,167,032 km (0.105 R)
• M12: 13,437,778 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 603.6

Radius: 7.7

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 7.88 AU - 12.66 AU

Year: 21591 Days

Day: 19.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 76,764,964 km

• M1: 95,892 km (0.046 R)
• M2: 339,288 km (0.113 R)
• M3: 816,056 km (0.092 R)
• M4: 1,522,607 km (0.066 R)
• M5: 1,870,572 km (0.107 R)
• M6: 2,401,943 km (0.031 R)
• M7: 2,926,882 km (0.059 R)
• M8: 3,216,803 km (0.085 R)
• M9: 3,702,697 km (0.12 R)
• M10: 3,979,303 km (0.061 R)
• M11: 5,302,945 km (0.092 R)
• M12: 6,022,960 km (0.052 R)
• M13: 8,005,132 km (0.118 R)
• M14: 9,338,497 km (0.09 R)
• M15: 11,902,156 km (0.091 R)
• M16: 12,168,440 km (0.083 R)
• M17: 13,632,405 km (0.09 R)
• M18: 14,823,952 km (0.112 R)
• M19: 15,210,064 km (0.105 R)
• M20: 19,819,623 km (0.1 R)
• M21: 21,345,971 km (0.108 R)
• M22: 23,362,101 km (0.092 R)
• M23: 25,282,339 km (0.066 R)
• M24: 27,536,480 km (0.1 R)
• M25: 29,191,930 km (0.074 R)
• M26: 32,830,300 km (0.117 R)
• M27: 33,884,666 km (0.106 R)
• M28: 34,151,847 km (0.083 R)
• M29: 37,183,448 km (0.069 R)
• M30: 37,753,267 km (0.114 R)
• M31: 42,834,358 km (0.032 R)
• M32: 51,106,672 km (0.077 R)
• M33: 51,811,128 km (0.036 R)
• M34: 60,972,801 km (0.07 R)
• M35: 65,829,945 km (0.092 R)
• M36: 67,293,760 km (0.075 R)
• M37: 68,993,192 km (0.099 R)
• M38: 71,815,355 km (0.106 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: 380 - 18,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit