🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.54 AU - 0.8 AU

Year: 360 Days

Day: 17.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,034,692 km

• M1: 88,113 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.2

Radius: 10.8

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.64 AU - 0.82 AU

Year: 409 Days

Day: 8 Hours

Environment

Temp: -142 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,034,692 km

• M1: 137,630 km (0.108 R)
• M2: 530,923 km (0.093 R)
• M3: 926,160 km (0.093 R)
• M4: 1,265,598 km (0.102 R)
• M5: 1,645,876 km (0.042 R)
• M6: 2,065,348 km (0.094 R)
• M7: 2,626,041 km (0.067 R)
• M8: 3,015,444 km (0.102 R)
• M9: 3,650,188 km (0.114 R)
• M10: 4,053,205 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.8

Radius: 8.4

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.72 AU - 0.84 AU

Year: 452 Days

Day: 11.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 71,034,692 km

• M1: 105,466 km (0.07 R)
• M2: 409,001 km (0.067 R)
• M3: 678,277 km (0.057 R)
• M4: 1,555,070 km (0.04 R)
• M5: 1,932,057 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399

Radius: 11.7

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.69 AU - 1.01 AU

Year: 514 Days

Day: 10.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,034,692 km

• M1: 145,559 km (0.111 R)
• M2: 527,931 km (0.084 R)
• M3: 1,003,503 km (0.119 R)
• M4: 1,399,039 km (0.091 R)
• M5: 1,892,862 km (0.114 R)
• M6: 2,267,904 km (0.092 R)
• M7: 2,894,420 km (0.04 R)
• M8: 3,260,486 km (0.091 R)
• M9: 4,034,954 km (0.111 R)
• M10: 4,958,272 km (0.064 R)
• M11: 5,358,745 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289

Radius: 11.6

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.19 AU - 1.35 AU

Year: 939 Days

Day: 8.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,034,692 km

• M1: 144,661 km (0.102 R)
• M2: 531,372 km (0.104 R)
• M3: 1,144,723 km (0.042 R)
• M4: 2,008,800 km (0.042 R)
• M5: 3,315,837 km (0.101 R)
• M6: 4,632,148 km (0.118 R)
• M7: 5,243,405 km (0.109 R)
• M8: 6,115,860 km (0.114 R)
• M9: 6,546,852 km (0.114 R)
• M10: 7,124,898 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.7

Radius: 8.5

Gravity: 8.78 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.36 AU - 1.42 AU

Year: 1075 Days

Day: 11.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,034,692 km

• M1: 106,364 km (0.106 R)
• M2: 371,452 km (0.118 R)
• M3: 847,921 km (0.088 R)
• M4: 1,123,779 km (0.115 R)
• M5: 1,771,089 km (0.116 R)
• M6: 2,410,470 km (0.095 R)
• M7: 3,195,560 km (0.114 R)
• M8: 3,586,759 km (0.108 R)
• M9: 3,881,018 km (0.097 R)
• M10: 4,465,646 km (0.038 R)
• M11: 4,825,279 km (0.061 R)
• M12: 5,381,035 km (0.099 R)
• M13: 5,726,307 km (0.09 R)
• M14: 6,238,979 km (0.077 R)
• M15: 6,666,231 km (0.092 R)
• M16: 7,306,809 km (0.048 R)
• M17: 7,730,769 km (0.083 R)
• M18: 8,410,841 km (0.101 R)
• M19: 9,215,827 km (0.076 R)
• M20: 9,770,387 km (0.097 R)
• M21: 10,471,402 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 900.2

Radius: 3.8

Gravity: 62.34 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 5.08 AU - 6.82 AU

Year: 9521 Days

Day: 22.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 71,034,692 km

• M1: 47,273 km (0.109 R)
• M2: 205,248 km (0.115 R)
• M3: 478,264 km (0.071 R)
• M4: 831,016 km (0.087 R)
• M5: 1,773,932 km (0.111 R)
• M6: 2,536,133 km (0.069 R)
• M7: 3,035,490 km (0.119 R)
• M8: 3,623,410 km (0.105 R)
• M9: 3,808,313 km (0.077 R)
• M10: 4,140,121 km (0.071 R)
• M11: 4,735,221 km (0.092 R)
• M12: 4,892,449 km (0.068 R)
• M13: 5,151,403 km (0.109 R)
• M14: 6,941,042 km (0.116 R)
• M15: 7,144,196 km (0.053 R)
• M16: 8,219,954 km (0.082 R)
• M17: 9,203,411 km (0.1 R)
• M18: 10,579,861 km (0.09 R)
• M19: 12,322,526 km (0.096 R)
• M20: 13,669,505 km (0.093 R)
• M21: 15,111,479 km (0.037 R)
• M22: 16,942,707 km (0.109 R)
• M23: 18,759,573 km (0.106 R)
• M24: 21,982,061 km (0.084 R)
• M25: 23,769,456 km (0.12 R)
• M26: 24,510,714 km (0.058 R)
• M27: 25,267,230 km (0.098 R)
• M28: 25,458,715 km (0.058 R)
• M29: 29,602,127 km (0.107 R)
• M30: 30,136,192 km (0.082 R)
• M31: 30,568,081 km (0.095 R)
• M32: 31,444,276 km (0.091 R)
• M33: 35,594,569 km (0.113 R)
• M34: 36,441,892 km (0.103 R)
• M35: 38,936,735 km (0.101 R)
• M36: 43,709,955 km (0.119 R)
• M37: 44,541,569 km (0.034 R)
• M38: 47,244,653 km (0.041 R)
• M39: 49,304,915 km (0.088 R)
• M40: 50,205,943 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.9

Radius: 4.5

Gravity: 12.69 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.06 AU - 8.2 AU

Year: 11199 Days

Day: 16.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,034,692 km

• M1: 56,099 km (0.096 R)
• M2: 200,012 km (0.063 R)
• M3: 899,532 km (0.077 R)
• M4: 1,333,665 km (0.032 R)
• M5: 1,956,591 km (0.119 R)
• M6: 2,528,653 km (0.034 R)
• M7: 4,328,614 km (0.118 R)
• M8: 5,597,354 km (0.077 R)
• M9: 7,507,719 km (0.11 R)
• M10: 8,421,612 km (0.09 R)
• M11: 9,676,738 km (0.102 R)
• M12: 19,041,864 km (0.1 R)
• M13: 24,062,668 km (0.119 R)
• M14: 24,735,709 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813

Radius: 3.3

Gravity: 74.66 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 6.66 AU - 7.68 AU

Year: 12595 Days

Day: 16.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 71,034,692 km

• M1: 40,990 km (0.065 R)
• M2: 228,885 km (0.047 R)
• M3: 380,278 km (0.074 R)
• M4: 521,349 km (0.097 R)
• M5: 742,005 km (0.117 R)
• M6: 910,901 km (0.104 R)
• M7: 1,080,545 km (0.098 R)
• M8: 1,590,525 km (0.095 R)
• M9: 1,786,049 km (0.104 R)
• M10: 2,448,768 km (0.115 R)
• M11: 2,870,185 km (0.082 R)
• M12: 3,135,123 km (0.093 R)
• M13: 3,312,246 km (0.091 R)
• M14: 3,631,040 km (0.079 R)
• M15: 4,613,598 km (0.069 R)
• M16: 6,300,015 km (0.117 R)
• M17: 6,705,575 km (0.081 R)
• M18: 7,085,105 km (0.079 R)
• M19: 7,345,854 km (0.099 R)
• M20: 7,933,025 km (0.111 R)
• M21: 8,996,816 km (0.07 R)
• M22: 10,822,359 km (0.116 R)
• M23: 12,004,032 km (0.1 R)
• M24: 16,585,617 km (0.068 R)
• M25: 17,671,099 km (0.103 R)
• M26: 18,150,410 km (0.112 R)
• M27: 21,660,425 km (0.108 R)
• M28: 22,767,300 km (0.104 R)
• M29: 22,955,344 km (0.059 R)
• M30: 26,728,652 km (0.032 R)
• M31: 27,254,039 km (0.119 R)
• M32: 30,551,476 km (0.099 R)
• M33: 30,780,211 km (0.086 R)
• M34: 33,737,761 km (0.108 R)
• M35: 38,188,447 km (0.112 R)
• M36: 38,854,606 km (0.036 R)
• M37: 44,464,826 km (0.085 R)
• M38: 48,697,847 km (0.08 R)
• M39: 52,043,154 km (0.112 R)
• M40: 52,861,604 km (0.084 R)
• M41: 58,304,125 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.4

Radius: 7.4

Gravity: 13.65 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 8.54 AU - 9.16 AU

Year: 17271 Days

Day: 18.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 71,034,692 km

• M1: 93,648 km (0.059 R)
• M2: 472,280 km (0.069 R)
• M3: 797,057 km (0.096 R)
• M4: 1,786,647 km (0.101 R)
• M5: 4,140,420 km (0.062 R)
• M6: 4,564,530 km (0.098 R)
• M7: 4,945,706 km (0.03 R)
• M8: 5,461,519 km (0.099 R)
• M9: 5,811,578 km (0.068 R)
• M10: 6,599,809 km (0.1 R)
• M11: 9,725,806 km (0.096 R)
• M12: 10,416,500 km (0.108 R)
• M13: 10,773,739 km (0.101 R)
• M14: 11,016,537 km (0.027 R)
• M15: 13,092,357 km (0.084 R)
• M16: 15,801,873 km (0.098 R)
• M17: 16,036,742 km (0.098 R)
• M18: 20,860,825 km (0.047 R)
• M19: 24,529,862 km (0.071 R)
• M20: 25,483,249 km (0.119 R)
• M21: 28,956,463 km (0.118 R)
• M22: 29,782,243 km (0.1 R)
• M23: 30,623,582 km (0.113 R)
• M24: 31,852,827 km (0.038 R)
• M25: 32,732,762 km (0.057 R)
• M26: 33,114,685 km (0.104 R)
• M27: 34,540,952 km (0.12 R)
• M28: 37,654,382 km (0.096 R)
• M29: 39,064,642 km (0.114 R)
• M30: 42,290,420 km (0.064 R)
• M31: 45,058,280 km (0.089 R)
• M32: 45,689,434 km (0.072 R)
• M33: 50,442,308 km (0.071 R)
• M34: 53,552,298 km (0.118 R)
• M35: 54,616,836 km (0.119 R)
• M36: 55,154,341 km (0.109 R)
• M37: 58,640,570 km (0.056 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 15,101 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit