🌌 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: 103.5

Radius: 12.6

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.45 AU - 0.61 AU

Year: 266 Days

Day: 7.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 69,001,215 km

• M1: 156,629 km (0.093 R)
• M2: 886,966 km (0.08 R)
• M3: 1,300,155 km (0.12 R)
• M4: 1,917,695 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.2

Radius: 10.5

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.99 AU - 0.99 AU

Year: 680 Days

Day: 5.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,001,215 km

• M1: 130,599 km (0.104 R)
• M2: 481,406 km (0.071 R)
• M3: 949,797 km (0.103 R)
• M4: 1,338,751 km (0.114 R)
• M5: 1,683,574 km (0.113 R)
• M6: 2,022,713 km (0.063 R)
• M7: 2,492,899 km (0.07 R)
• M8: 3,047,608 km (0.093 R)
• M9: 3,394,824 km (0.082 R)
• M10: 3,725,585 km (0.032 R)
• M11: 4,850,412 km (0.03 R)
• M12: 5,698,482 km (0.057 R)
• M13: 6,330,383 km (0.078 R)
• M14: 6,942,987 km (0.112 R)
• M15: 7,525,222 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43

Radius: 11.7

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 4.9 AU - 5.44 AU

Year: 8114 Days

Day: 6.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 123.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,001,215 km

• M1: 146,008 km (0.116 R)
• M2: 533,765 km (0.1 R)
• M3: 937,829 km (0.105 R)
• M4: 1,371,214 km (0.083 R)
• M5: 2,090,032 km (0.108 R)
• M6: 2,703,533 km (0.1 R)
• M7: 3,301,176 km (0.082 R)
• M8: 3,819,383 km (0.086 R)
• M9: 5,471,841 km (0.091 R)
• M10: 6,615,068 km (0.11 R)
• M11: 8,337,389 km (0.119 R)
• M12: 9,302,594 km (0.099 R)
• M13: 14,185,319 km (0.092 R)
• M14: 14,724,619 km (0.056 R)
• M15: 15,277,683 km (0.074 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 353.9

Radius: 7.7

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 4.63 AU - 6.75 AU

Year: 9369 Days

Day: 23.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,001,215 km

• M1: 104,569 km (0.093 R)
• M2: 363,972 km (0.095 R)
• M3: 1,097,450 km (0.097 R)
• M4: 1,380,040 km (0.108 R)
• M5: 1,684,023 km (0.082 R)
• M6: 1,956,291 km (0.1 R)
• M7: 2,645,788 km (0.073 R)
• M8: 2,975,502 km (0.105 R)
• M9: 5,171,449 km (0.046 R)
• M10: 5,502,359 km (0.04 R)
• M11: 6,206,666 km (0.116 R)
• M12: 8,849,462 km (0.112 R)
• M13: 9,149,406 km (0.086 R)
• M14: 9,544,793 km (0.096 R)
• M15: 9,905,922 km (0.079 R)
• M16: 10,559,665 km (0.064 R)
• M17: 13,577,952 km (0.11 R)
• M18: 14,092,718 km (0.105 R)
• M19: 14,384,284 km (0.094 R)
• M20: 14,979,534 km (0.045 R)
• M21: 16,092,393 km (0.091 R)
• M22: 17,999,466 km (0.106 R)
• M23: 19,760,383 km (0.1 R)
• M24: 20,570,455 km (0.059 R)
• M25: 23,052,882 km (0.113 R)
• M26: 25,989,189 km (0.051 R)
• M27: 26,339,847 km (0.086 R)
• M28: 27,774,341 km (0.113 R)
• M29: 29,260,147 km (0.096 R)
• M30: 31,388,476 km (0.12 R)
• M31: 32,693,567 km (0.066 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.8

Radius: 5.8

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 6.34 AU - 6.78 AU

Year: 11598 Days

Day: 16.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,001,215 km

• M1: 72,256 km (0.065 R)
• M2: 378,632 km (0.117 R)
• M3: 591,510 km (0.065 R)
• M4: 1,797,119 km (0.091 R)
• M5: 2,219,135 km (0.078 R)
• M6: 2,667,928 km (0.118 R)
• M7: 4,103,170 km (0.1 R)
• M8: 4,778,156 km (0.031 R)
• M9: 5,286,938 km (0.111 R)
• M10: 7,137,614 km (0.097 R)
• M11: 7,688,433 km (0.091 R)
• M12: 9,041,247 km (0.05 R)
• M13: 11,162,395 km (0.046 R)
• M14: 11,553,743 km (0.102 R)
• M15: 14,040,508 km (0.117 R)
• M16: 14,496,482 km (0.108 R)
• M17: 17,442,813 km (0.098 R)
• M18: 19,969,521 km (0.069 R)
• M19: 33,015,352 km (0.071 R)
• M20: 33,719,809 km (0.061 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 123.7

Radius: 3.9

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 7.87 AU - 8.19 AU

Year: 15707 Days

Day: 18 Hours

Environment

Temp: -240 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,001,215 km

• M1: 119,977 km (0.048 R)
• M2: 481,855 km (0.118 R)
• M3: 713,582 km (0.101 R)
• M4: 1,065,586 km (0.111 R)
• M5: 1,191,248 km (0.093 R)
• M6: 1,472,791 km (0.096 R)
• M7: 2,054,577 km (0.106 R)
• M8: 2,267,605 km (0.101 R)
• M9: 2,586,697 km (0.045 R)
• M10: 3,099,518 km (0.088 R)
• M11: 3,868,601 km (0.094 R)
• M12: 4,066,519 km (0.114 R)
• M13: 5,399,586 km (0.12 R)
• M14: 5,584,339 km (0.102 R)
• M15: 7,108,292 km (0.068 R)
• M16: 8,635,986 km (0.104 R)
• M17: 9,103,479 km (0.083 R)
• M18: 9,453,987 km (0.102 R)
• M19: 11,443,040 km (0.098 R)
• M20: 12,696,371 km (0.101 R)
• M21: 12,859,283 km (0.039 R)
• M22: 16,804,478 km (0.097 R)
• M23: 18,211,297 km (0.046 R)
• M24: 18,557,466 km (0.111 R)
• M25: 19,191,612 km (0.112 R)
• M26: 21,563,336 km (0.036 R)
• M27: 28,239,740 km (0.089 R)
• M28: 30,803,997 km (0.112 R)
• M29: 32,800,530 km (0.116 R)
• M30: 35,846,193 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 444.7

Radius: 7.4

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 9.31 AU - 10.45 AU

Year: 21436 Days

Day: 22.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 69,001,215 km

• M1: 94,695 km (0.11 R)
• M2: 374,294 km (0.093 R)
• M3: 930,499 km (0.108 R)
• M4: 1,234,631 km (0.078 R)
• M5: 1,525,150 km (0.104 R)
• M6: 1,807,741 km (0.113 R)
• M7: 2,435,753 km (0.108 R)
• M8: 2,824,408 km (0.047 R)
• M9: 3,360,866 km (0.102 R)
• M10: 4,242,895 km (0.111 R)
• M11: 4,602,229 km (0.077 R)
• M12: 5,842,694 km (0.083 R)
• M13: 8,248,827 km (0.054 R)
• M14: 8,602,775 km (0.109 R)
• M15: 12,786,429 km (0.073 R)
• M16: 18,411,309 km (0.09 R)
• M17: 18,755,384 km (0.102 R)
• M18: 21,003,541 km (0.116 R)
• M19: 21,284,785 km (0.117 R)
• M20: 21,951,094 km (0.075 R)
• M21: 24,859,725 km (0.067 R)
• M22: 33,045,272 km (0.087 R)
• M23: 36,039,174 km (0.112 R)
• M24: 42,261,698 km (0.073 R)
• M25: 52,535,331 km (0.119 R)
• M26: 55,877,946 km (0.114 R)
• M27: 57,693,017 km (0.11 R)
• M28: 65,346,743 km (0.078 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 17,725 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit