🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.8

Radius: 12.1

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.51 AU - 0.65 AU

Year: 300 Days

Day: 9.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,494,134 km

• M1: 150,495 km (0.093 R)
• M2: 568,173 km (0.078 R)
• M3: 1,021,305 km (0.081 R)
• M4: 1,495,231 km (0.103 R)
• M5: 1,888,972 km (0.12 R)
• M6: 2,395,810 km (0.109 R)
• M7: 3,392,581 km (0.094 R)
• M8: 3,961,501 km (0.109 R)
• M9: 4,393,091 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907

Radius: 14.6

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.55 AU - 0.67 AU

Year: 323 Days

Day: 11.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,494,134 km

• M1: 181,612 km (0.095 R)
• M2: 639,232 km (0.091 R)
• M3: 1,126,771 km (0.119 R)
• M4: 1,617,901 km (0.073 R)
• M5: 2,246,511 km (0.114 R)
• M6: 3,015,295 km (0.099 R)
• M7: 3,578,381 km (0.099 R)
• M8: 4,043,182 km (0.119 R)
• M9: 4,918,628 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.3

Radius: 10.3

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.81 AU - 0.85 AU

Year: 513 Days

Day: 6 Hours

Environment

Temp: -159 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,494,134 km

• M1: 128,056 km (0.032 R)
• M2: 514,018 km (0.119 R)
• M3: 997,070 km (0.113 R)
• M4: 1,427,164 km (0.116 R)
• M5: 2,293,036 km (0.109 R)
• M6: 2,742,428 km (0.117 R)
• M7: 3,898,221 km (0.073 R)
• M8: 4,310,214 km (0.108 R)
• M9: 4,675,532 km (0.086 R)
• M10: 5,029,929 km (0.086 R)
• M11: 5,369,217 km (0.114 R)
• M12: 5,986,608 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.4

Radius: 12.5

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.76 AU - 0.9 AU

Year: 513 Days

Day: 8.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,494,134 km

• M1: 155,432 km (0.094 R)
• M2: 600,336 km (0.085 R)
• M3: 1,070,971 km (0.094 R)
• M4: 1,751,193 km (0.085 R)
• M5: 2,504,268 km (0.051 R)
• M6: 3,037,136 km (0.073 R)
• M7: 3,599,026 km (0.092 R)
• M8: 4,003,239 km (0.09 R)
• M9: 4,612,551 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 9

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.88 AU - 3.1 AU

Year: 2665 Days

Day: 7.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,494,134 km

• M1: 113,994 km (0.097 R)
• M2: 403,914 km (0.1 R)
• M3: 696,528 km (0.088 R)
• M4: 1,071,570 km (0.094 R)
• M5: 1,385,575 km (0.113 R)
• M6: 1,857,856 km (0.087 R)
• M7: 2,527,905 km (0.1 R)
• M8: 3,017,389 km (0.116 R)
• M9: 3,620,717 km (0.111 R)
• M10: 4,321,882 km (0.097 R)
• M11: 4,915,636 km (0.114 R)
• M12: 5,288,285 km (0.069 R)
• M13: 5,943,374 km (0.111 R)
• M14: 6,418,048 km (0.092 R)
• M15: 6,704,229 km (0.068 R)
• M16: 7,876,627 km (0.07 R)
• M17: 8,235,363 km (0.069 R)
• M18: 8,730,681 km (0.036 R)
• M19: 9,050,222 km (0.105 R)
• M20: 11,973,664 km (0.063 R)
• M21: 13,142,921 km (0.047 R)
• M22: 14,787,899 km (0.076 R)
• M23: 15,105,346 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.9

Radius: 11.3

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.15 AU - 3.19 AU

Year: 2959 Days

Day: 6.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,494,134 km

• M1: 140,622 km (0.098 R)
• M2: 664,215 km (0.111 R)
• M3: 1,181,075 km (0.107 R)
• M4: 1,593,367 km (0.089 R)
• M5: 2,213,749 km (0.039 R)
• M6: 2,717,595 km (0.059 R)
• M7: 3,789,015 km (0.098 R)
• M8: 4,189,788 km (0.09 R)
• M9: 6,240,475 km (0.115 R)
• M10: 7,137,763 km (0.107 R)
• M11: 8,181,208 km (0.042 R)
• M12: 8,821,637 km (0.067 R)
• M13: 11,174,662 km (0.11 R)
• M14: 12,248,176 km (0.109 R)
• M15: 13,302,243 km (0.096 R)
• M16: 13,784,696 km (0.103 R)
• M17: 14,142,983 km (0.112 R)
• M18: 16,176,467 km (0.097 R)
• M19: 17,392,548 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.8

Radius: 10.4

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.41 AU - 3.13 AU

Year: 3127 Days

Day: 9.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,494,134 km

• M1: 129,402 km (0.077 R)
• M2: 514,168 km (0.111 R)
• M3: 982,409 km (0.092 R)
• M4: 1,311,973 km (0.064 R)
• M5: 1,798,466 km (0.062 R)
• M6: 3,051,049 km (0.078 R)
• M7: 4,184,402 km (0.08 R)
• M8: 5,026,488 km (0.106 R)
• M9: 5,762,510 km (0.111 R)
• M10: 6,087,437 km (0.031 R)
• M11: 8,336,341 km (0.105 R)
• M12: 11,007,561 km (0.094 R)
• M13: 11,424,789 km (0.08 R)
• M14: 13,671,899 km (0.066 R)
• M15: 17,180,119 km (0.06 R)
• M16: 18,142,931 km (0.096 R)
• M17: 21,504,844 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 878.2

Radius: 3.8

Gravity: 60.82 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.27 AU - 10.01 AU

Year: 15752 Days

Day: 18.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 70,494,134 km

• M1: 47,423 km (0.072 R)
• M2: 172,038 km (0.106 R)
• M3: 357,988 km (0.101 R)
• M4: 561,590 km (0.058 R)
• M5: 718,519 km (0.086 R)
• M6: 1,058,106 km (0.111 R)
• M7: 1,968,409 km (0.058 R)
• M8: 2,421,242 km (0.042 R)
• M9: 2,578,918 km (0.117 R)
• M10: 2,914,915 km (0.036 R)
• M11: 3,067,654 km (0.071 R)
• M12: 3,279,485 km (0.08 R)
• M13: 3,444,790 km (0.085 R)
• M14: 5,379,240 km (0.102 R)
• M15: 5,766,400 km (0.104 R)
• M16: 8,488,482 km (0.12 R)
• M17: 10,774,487 km (0.071 R)
• M18: 12,090,350 km (0.084 R)
• M19: 12,956,672 km (0.111 R)
• M20: 15,880,562 km (0.049 R)
• M21: 18,601,149 km (0.086 R)
• M22: 19,215,697 km (0.114 R)
• M23: 21,140,274 km (0.107 R)
• M24: 26,561,102 km (0.118 R)
• M25: 28,363,158 km (0.076 R)
• M26: 30,971,696 km (0.106 R)
• M27: 32,208,571 km (0.075 R)
• M28: 33,994,919 km (0.104 R)
• M29: 35,044,797 km (0.063 R)
• M30: 37,071,100 km (0.047 R)
• M31: 39,460,627 km (0.056 R)
• M32: 44,388,082 km (0.081 R)
• M33: 50,045,724 km (0.114 R)
• M34: 58,000,890 km (0.103 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 533 - 20,121 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit