🌌 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 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.4

Radius: 11

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.46 AU - 0.6 AU

Year: 266 Days

Day: 7.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 93.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,195,451 km

• M1: 136,732 km (0.118 R)
• M2: 563,386 km (0.089 R)
• M3: 1,055,563 km (0.071 R)
• M4: 1,657,544 km (0.052 R)
• M5: 2,785,961 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.9

Radius: 11.9

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.45 AU - 0.63 AU

Year: 274 Days

Day: 12.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,195,451 km

• M1: 147,952 km (0.113 R)
• M2: 582,833 km (0.115 R)
• M3: 1,135,149 km (0.078 R)
• M4: 1,524,851 km (0.051 R)
• M5: 2,238,732 km (0.03 R)
• M6: 2,813,338 km (0.11 R)
• M7: 3,444,641 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.6

Radius: 14.3

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.54 AU - 0.64 AU

Year: 313 Days

Day: 10.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,195,451 km

• M1: 177,872 km (0.099 R)
• M2: 632,350 km (0.084 R)
• M3: 1,777,821 km (0.082 R)
• M4: 2,254,290 km (0.099 R)
• M5: 2,749,010 km (0.092 R)
• M6: 3,349,796 km (0.069 R)
• M7: 3,924,850 km (0.071 R)
• M8: 4,538,051 km (0.1 R)
• M9: 5,021,103 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.4

Radius: 13.8

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.9 AU - 1.1 AU

Year: 690 Days

Day: 8.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,195,451 km

• M1: 193,430 km (0.12 R)
• M2: 732,581 km (0.112 R)
• M3: 1,301,501 km (0.043 R)
• M4: 1,769,892 km (0.119 R)
• M5: 3,013,200 km (0.081 R)
• M6: 3,448,381 km (0.09 R)
• M7: 4,135,184 km (0.086 R)
• M8: 5,156,040 km (0.075 R)
• M9: 5,783,753 km (0.103 R)
• M10: 7,486,925 km (0.112 R)
• M11: 8,318,240 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.2

Radius: 12.1

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.15 AU - 1.27 AU

Year: 919 Days

Day: 6.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,195,451 km

• M1: 150,495 km (0.056 R)
• M2: 589,864 km (0.048 R)
• M3: 1,010,085 km (0.103 R)
• M4: 1,423,573 km (0.06 R)
• M5: 1,817,764 km (0.072 R)
• M6: 2,263,865 km (0.104 R)
• M7: 2,757,986 km (0.103 R)
• M8: 4,762,299 km (0.073 R)
• M9: 5,580,150 km (0.082 R)
• M10: 6,001,418 km (0.073 R)
• M11: 6,673,411 km (0.117 R)
• M12: 7,723,289 km (0.098 R)
• M13: 8,382,567 km (0.098 R)
• M14: 8,795,906 km (0.081 R)
• M15: 9,723,562 km (0.096 R)
• M16: 10,429,814 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.4

Radius: 10.9

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.06 AU - 1.72 AU

Year: 1131 Days

Day: 13.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,195,451 km

• M1: 135,536 km (0.087 R)
• M2: 663,167 km (0.092 R)
• M3: 1,717,683 km (0.112 R)
• M4: 2,317,421 km (0.111 R)
• M5: 3,105,801 km (0.091 R)
• M6: 3,463,191 km (0.082 R)
• M7: 4,302,136 km (0.094 R)
• M8: 5,286,789 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.6

Radius: 9.3

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.9 AU - 2.02 AU

Year: 1894 Days

Day: 10 Hours

Environment

Temp: -203 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,195,451 km

• M1: 115,639 km (0.093 R)
• M2: 414,237 km (0.111 R)
• M3: 796,459 km (0.106 R)
• M4: 1,531,733 km (0.092 R)
• M5: 1,915,152 km (0.101 R)
• M6: 2,312,035 km (0.044 R)
• M7: 2,707,273 km (0.102 R)
• M8: 3,010,508 km (0.113 R)
• M9: 3,932,479 km (0.057 R)
• M10: 4,598,040 km (0.112 R)
• M11: 5,010,930 km (0.118 R)
• M12: 5,448,354 km (0.083 R)
• M13: 5,958,782 km (0.089 R)
• M14: 7,826,512 km (0.085 R)
• M15: 8,296,100 km (0.076 R)
• M16: 9,291,673 km (0.111 R)
• M17: 9,818,407 km (0.045 R)
• M18: 10,399,745 km (0.099 R)
• M19: 10,716,743 km (0.118 R)
• M20: 11,407,137 km (0.085 R)
• M21: 13,119,584 km (0.069 R)
• M22: 14,251,591 km (0.104 R)
• M23: 14,907,877 km (0.112 R)

Asteroid Belt

Center: 3.31 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.3

Radius: 9.7

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.26 AU - 5.04 AU

Year: 6921 Days

Day: 8.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,195,451 km

• M1: 120,576 km (0.083 R)
• M2: 439,369 km (0.041 R)
• M3: 1,966,015 km (0.098 R)
• M4: 3,729,325 km (0.098 R)
• M5: 6,006,953 km (0.073 R)
• M6: 8,073,049 km (0.102 R)
• M7: 8,824,030 km (0.043 R)
• M8: 10,213,645 km (0.054 R)
• M9: 12,099,326 km (0.067 R)
• M10: 12,707,591 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788.8

Radius: 7.6

Gravity: 13.66 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 6.92 AU - 8.74 AU

Year: 15124 Days

Day: 20.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 66,195,451 km

• M1: 107,411 km (0.091 R)
• M2: 375,491 km (0.09 R)
• M3: 1,042,996 km (0.101 R)
• M4: 1,690,007 km (0.088 R)
• M5: 2,121,447 km (0.068 R)
• M6: 2,557,376 km (0.053 R)
• M7: 4,076,243 km (0.066 R)
• M8: 4,325,024 km (0.079 R)
• M9: 4,922,219 km (0.054 R)
• M10: 5,460,771 km (0.088 R)
• M11: 5,725,260 km (0.082 R)
• M12: 7,871,242 km (0.068 R)
• M13: 8,258,401 km (0.056 R)
• M14: 9,123,226 km (0.117 R)
• M15: 12,080,028 km (0.101 R)
• M16: 13,327,973 km (0.117 R)
• M17: 14,018,368 km (0.059 R)
• M18: 14,951,110 km (0.078 R)
• M19: 17,019,451 km (0.053 R)
• M20: 17,997,222 km (0.03 R)
• M21: 18,247,499 km (0.117 R)
• M22: 18,500,021 km (0.12 R)
• M23: 18,926,075 km (0.117 R)
• M24: 20,333,492 km (0.115 R)
• M25: 20,604,863 km (0.082 R)
• M26: 22,962,076 km (0.111 R)
• M27: 24,357,675 km (0.099 R)
• M28: 24,972,672 km (0.104 R)
• M29: 26,663,576 km (0.094 R)
• M30: 29,225,889 km (0.042 R)
• M31: 30,982,766 km (0.082 R)
• M32: 34,065,230 km (0.028 R)
• M33: 38,026,881 km (0.08 R)
• M34: 38,301,543 km (0.095 R)
• M35: 38,993,583 km (0.102 R)
• M36: 42,138,429 km (0.109 R)
• M37: 42,875,947 km (0.081 R)
• M38: 44,681,294 km (0.076 R)
• M39: 49,415,169 km (0.115 R)
• M40: 52,750,453 km (0.095 R)
• M41: 64,621,643 km (0.115 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 18,478 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit