🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.6

Radius: 10.9

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.68 AU - 0.84 AU

Year: 428 Days

Day: 7.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,269,324 km

• M1: 135,536 km (0.075 R)
• M2: 479,312 km (0.112 R)
• M3: 827,426 km (0.118 R)
• M4: 1,286,542 km (0.091 R)
• M5: 1,762,861 km (0.091 R)
• M6: 2,261,471 km (0.088 R)
• M7: 2,799,126 km (0.087 R)
• M8: 3,168,333 km (0.082 R)
• M9: 3,595,884 km (0.116 R)
• M10: 4,117,382 km (0.09 R)
• M11: 5,279,309 km (0.104 R)
• M12: 5,653,603 km (0.073 R)
• M13: 6,173,904 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.5

Radius: 13.7

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.09 AU - 1.17 AU

Year: 776 Days

Day: 13.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,269,324 km

• M1: 170,392 km (0.056 R)
• M2: 705,653 km (0.107 R)
• M3: 1,305,391 km (0.068 R)
• M4: 2,053,231 km (0.04 R)
• M5: 2,795,835 km (0.113 R)
• M6: 4,393,241 km (0.115 R)
• M7: 5,189,999 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.2

Radius: 9.2

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.57 AU - 1.89 AU

Year: 1469 Days

Day: 6.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 24,269,324 km

• M1: 114,442 km (0.072 R)
• M2: 479,461 km (0.092 R)
• M3: 989,440 km (0.071 R)
• M4: 1,292,526 km (0.103 R)
• M5: 1,985,164 km (0.07 R)
• M6: 2,354,970 km (0.089 R)
• M7: 3,207,229 km (0.081 R)
• M8: 4,554,507 km (0.067 R)
• M9: 5,316,260 km (0.091 R)
• M10: 5,647,768 km (0.07 R)
• M11: 6,181,683 km (0.112 R)
• M12: 6,614,769 km (0.077 R)
• M13: 7,302,620 km (0.11 R)
• M14: 8,011,864 km (0.098 R)
• M15: 8,766,435 km (0.085 R)
• M16: 9,064,733 km (0.062 R)
• M17: 9,482,560 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.9

Radius: 10.8

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.13 AU - 2.37 AU

Year: 2179 Days

Day: 7.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 65.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 24,269,324 km

• M1: 134,339 km (0.103 R)
• M2: 633,996 km (0.08 R)
• M3: 1,128,267 km (0.052 R)
• M4: 1,736,382 km (0.083 R)
• M5: 2,091,229 km (0.088 R)
• M6: 2,466,420 km (0.079 R)
• M7: 3,199,150 km (0.105 R)
• M8: 3,644,803 km (0.06 R)
• M9: 4,487,338 km (0.114 R)
• M10: 5,381,335 km (0.09 R)
• M11: 7,012,550 km (0.069 R)
• M12: 7,925,845 km (0.117 R)
• M13: 8,510,772 km (0.027 R)
• M14: 9,621,686 km (0.109 R)
• M15: 10,593,324 km (0.081 R)
• M16: 11,343,857 km (0.099 R)
• M17: 12,171,881 km (0.098 R)
• M18: 12,600,778 km (0.114 R)
• M19: 13,671,301 km (0.105 R)
• M20: 14,946,922 km (0.083 R)
• M21: 15,638,812 km (0.1 R)
• M22: 16,197,410 km (0.089 R)
• M23: 17,033,513 km (0.027 R)
• M24: 18,397,097 km (0.116 R)
• M25: 19,134,316 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.8

Radius: 9.4

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.14 AU - 2.8 AU

Year: 2506 Days

Day: 14.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,269,324 km

• M1: 117,285 km (0.059 R)
• M2: 560,394 km (0.084 R)
• M3: 2,001,620 km (0.092 R)
• M4: 2,851,934 km (0.029 R)
• M5: 3,178,656 km (0.098 R)
• M6: 3,908,095 km (0.118 R)
• M7: 4,505,589 km (0.103 R)
• M8: 7,139,558 km (0.101 R)
• M9: 9,061,293 km (0.072 R)
• M10: 11,123,350 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.1

Radius: 11

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.77 AU - 2.77 AU

Year: 2977 Days

Day: 7.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,269,324 km

• M1: 148,551 km (0.085 R)
• M2: 598,242 km (0.106 R)
• M3: 1,216,979 km (0.105 R)
• M4: 2,243,220 km (0.068 R)
• M5: 3,542,178 km (0.057 R)
• M6: 3,995,310 km (0.091 R)
• M7: 5,062,990 km (0.061 R)
• M8: 7,260,284 km (0.117 R)
• M9: 8,875,193 km (0.077 R)
• M10: 11,320,220 km (0.076 R)
• M11: 15,189,869 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.7

Radius: 8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.74 AU - 3.38 AU

Year: 3456 Days

Day: 8.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,269,324 km

• M1: 100,380 km (0.072 R)
• M2: 417,378 km (0.091 R)
• M3: 835,953 km (0.067 R)
• M4: 1,618,799 km (0.094 R)
• M5: 2,020,170 km (0.097 R)
• M6: 2,297,075 km (0.118 R)
• M7: 2,882,003 km (0.114 R)
• M8: 3,135,871 km (0.075 R)
• M9: 3,439,255 km (0.11 R)
• M10: 3,931,282 km (0.112 R)
• M11: 4,448,592 km (0.08 R)
• M12: 4,988,042 km (0.1 R)
• M13: 6,093,869 km (0.113 R)
• M14: 6,622,399 km (0.045 R)
• M15: 7,650,585 km (0.08 R)
• M16: 11,488,967 km (0.119 R)
• M17: 13,752,383 km (0.084 R)
• M18: 14,847,738 km (0.099 R)
• M19: 16,297,342 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35.6

Radius: 7.6

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 7.34 AU - 9.52 AU

Year: 15804 Days

Day: 23.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,269,324 km

• M1: 105,915 km (0.036 R)
• M2: 1,104,631 km (0.082 R)
• M3: 1,712,447 km (0.049 R)
• M4: 2,297,375 km (0.057 R)
• M5: 2,572,485 km (0.077 R)
• M6: 3,062,268 km (0.073 R)
• M7: 3,632,835 km (0.06 R)
• M8: 5,238,319 km (0.068 R)
• M9: 5,635,950 km (0.073 R)
• M10: 6,581,558 km (0.064 R)
• M11: 7,933,025 km (0.104 R)
• M12: 8,210,081 km (0.108 R)
• M13: 17,717,923 km (0.108 R)
• M14: 24,124,601 km (0.069 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: 407 - 13,551 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit