🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.7

Radius: 9.6

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.47 AU - 0.55 AU

Year: 256 Days

Day: 6.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,928,351 km

• M1: 119,379 km (0.117 R)
• M2: 439,519 km (0.119 R)
• M3: 743,651 km (0.087 R)
• M4: 1,061,098 km (0.067 R)
• M5: 1,495,081 km (0.077 R)
• M6: 2,090,481 km (0.083 R)
• M7: 2,573,083 km (0.108 R)
• M8: 2,941,543 km (0.086 R)
• M9: 3,440,901 km (0.101 R)
• M10: 4,177,371 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883

Radius: 11

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.45 AU - 0.59 AU

Year: 264 Days

Day: 7.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,928,351 km

• M1: 137,032 km (0.089 R)
• M2: 503,247 km (0.096 R)
• M3: 1,043,595 km (0.11 R)
• M4: 1,408,314 km (0.113 R)
• M5: 1,845,290 km (0.119 R)
• M6: 2,554,982 km (0.101 R)
• M7: 3,028,459 km (0.114 R)
• M8: 3,801,581 km (0.086 R)
• M9: 4,408,500 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.1

Radius: 8.4

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.42 AU - 0.68 AU

Year: 287 Days

Day: 5.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,928,351 km

• M1: 104,719 km (0.103 R)
• M2: 982,409 km (0.085 R)
• M3: 1,254,079 km (0.116 R)
• M4: 1,797,718 km (0.068 R)
• M5: 2,678,849 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.4

Radius: 10

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.6 AU - 0.82 AU

Year: 421 Days

Day: 14.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,928,351 km

• M1: 137,181 km (0.119 R)
• M2: 520,750 km (0.119 R)
• M3: 878,140 km (0.032 R)
• M4: 1,339,799 km (0.115 R)
• M5: 1,804,599 km (0.104 R)
• M6: 2,894,569 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.5

Radius: 8.4

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.69 AU - 0.95 AU

Year: 522 Days

Day: 11.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,928,351 km

• M1: 104,569 km (0.091 R)
• M2: 563,535 km (0.118 R)
• M3: 1,003,503 km (0.115 R)
• M4: 1,316,760 km (0.038 R)
• M5: 2,635,914 km (0.037 R)
• M6: 4,143,861 km (0.093 R)
• M7: 4,745,394 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.3

Radius: 9.4

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.75 AU - 1.09 AU

Year: 620 Days

Day: 9 Hours

Environment

Temp: -181 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,928,351 km

• M1: 116,986 km (0.085 R)
• M2: 515,813 km (0.079 R)
• M3: 1,133,653 km (0.087 R)
• M4: 1,460,075 km (0.058 R)
• M5: 1,812,977 km (0.036 R)
• M6: 2,172,610 km (0.091 R)
• M7: 2,943,488 km (0.117 R)
• M8: 4,380,674 km (0.099 R)
• M9: 4,857,592 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 12.8

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.92 AU - 1.36 AU

Year: 856 Days

Day: 6.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,928,351 km

• M1: 167,699 km (0.096 R)
• M2: 616,493 km (0.103 R)
• M3: 1,211,294 km (0.12 R)
• M4: 1,881,642 km (0.059 R)
• M5: 2,375,913 km (0.061 R)
• M6: 2,888,735 km (0.071 R)
• M7: 3,399,312 km (0.089 R)
• M8: 4,068,763 km (0.071 R)
• M9: 4,588,316 km (0.093 R)
• M10: 5,135,396 km (0.119 R)
• M11: 6,536,829 km (0.055 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.2

Radius: 13.9

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.09 AU - 1.47 AU

Year: 1018 Days

Day: 7.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,928,351 km

• M1: 172,935 km (0.073 R)
• M2: 648,208 km (0.079 R)
• M3: 1,149,959 km (0.069 R)
• M4: 1,611,319 km (0.07 R)
• M5: 2,349,285 km (0.118 R)
• M6: 2,797,929 km (0.1 R)
• M7: 3,343,662 km (0.081 R)
• M8: 3,784,976 km (0.108 R)
• M9: 4,702,310 km (0.082 R)
• M10: 6,177,195 km (0.044 R)
• M11: 6,696,300 km (0.077 R)

Planet 9 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.8

Radius: 9

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.24 AU - 2.02 AU

Year: 1463 Days

Day: 9.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,928,351 km

• M1: 112,198 km (0.053 R)
• M2: 558,598 km (0.076 R)
• M3: 868,116 km (0.049 R)
• M4: 1,943,576 km (0.055 R)
• M5: 2,906,836 km (0.092 R)
• M6: 3,264,525 km (0.119 R)
• M7: 3,979,303 km (0.044 R)
• M8: 4,595,796 km (0.101 R)
• M9: 4,999,411 km (0.065 R)
• M10: 5,649,414 km (0.096 R)
• M11: 7,384,300 km (0.046 R)
• M12: 7,939,309 km (0.07 R)
• M13: 8,551,613 km (0.066 R)
• M14: 8,854,100 km (0.074 R)
• M15: 9,870,318 km (0.11 R)
• M16: 10,647,479 km (0.066 R)
• M17: 12,477,061 km (0.069 R)
• M18: 13,629,413 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.5

Radius: 6

Gravity: 12.24 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.72 AU - 7.18 AU

Year: 10202 Days

Day: 22 Hours

Environment

Temp: -232 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 41,928,351 km

• M1: 74,649 km (0.075 R)
• M2: 631,752 km (0.069 R)
• M3: 853,456 km (0.073 R)
• M4: 1,074,412 km (0.095 R)
• M5: 1,297,462 km (0.103 R)
• M6: 1,538,016 km (0.106 R)
• M7: 2,426,029 km (0.055 R)
• M8: 2,773,395 km (0.084 R)
• M9: 3,197,654 km (0.101 R)
• M10: 3,519,739 km (0.053 R)
• M11: 3,888,497 km (0.11 R)
• M12: 4,617,039 km (0.078 R)
• M13: 4,968,594 km (0.116 R)
• M14: 9,762,757 km (0.087 R)
• M15: 12,494,265 km (0.065 R)
• M16: 13,883,879 km (0.045 R)
• M17: 16,557,941 km (0.079 R)
• M18: 17,661,076 km (0.078 R)
• M19: 17,873,355 km (0.098 R)
• M20: 18,959,735 km (0.107 R)
• M21: 22,648,519 km (0.068 R)
• M22: 24,005,970 km (0.071 R)
• M23: 25,327,069 km (0.077 R)
• M24: 28,987,430 km (0.055 R)
• M25: 29,779,551 km (0.068 R)
• M26: 32,559,528 km (0.081 R)
• M27: 33,415,228 km (0.116 R)
• M28: 33,740,005 km (0.065 R)
• M29: 35,958,990 km (0.111 R)
• M30: 36,299,923 km (0.066 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 19,585 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit