🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.4

Radius: 11.2

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.67 AU - 0.99 AU

Year: 522 Days

Day: 15 Hours

Environment

Temp: -177 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,600,522 km

• M1: 139,276 km (0.107 R)
• M2: 504,594 km (0.111 R)
• M3: 944,561 km (0.087 R)
• M4: 1,378,395 km (0.082 R)
• M5: 2,193,554 km (0.025 R)
• M6: 2,927,780 km (0.042 R)
• M7: 3,587,058 km (0.078 R)
• M8: 4,102,871 km (0.118 R)
• M9: 5,267,042 km (0.112 R)
• M10: 5,935,146 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.1

Radius: 10.7

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.16 AU - 1.78 AU

Year: 1230 Days

Day: 10.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,600,522 km

• M1: 133,292 km (0.089 R)
• M2: 470,037 km (0.045 R)
• M3: 890,107 km (0.102 R)
• M4: 1,322,595 km (0.07 R)
• M5: 1,687,165 km (0.092 R)
• M6: 2,564,257 km (0.027 R)
• M7: 2,975,053 km (0.059 R)
• M8: 3,914,079 km (0.107 R)
• M9: 5,297,261 km (0.073 R)
• M10: 8,489,829 km (0.059 R)
• M11: 9,498,567 km (0.08 R)
• M12: 9,985,508 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46

Radius: 11.2

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.5 AU - 1.7 AU

Year: 1397 Days

Day: 13.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,600,522 km

• M1: 139,575 km (0.105 R)
• M2: 571,314 km (0.119 R)
• M3: 1,315,414 km (0.118 R)
• M4: 3,595,286 km (0.09 R)
• M5: 4,901,125 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.4

Radius: 11.5

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.42 AU - 1.86 AU

Year: 1450 Days

Day: 8.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,600,522 km

• M1: 143,315 km (0.098 R)
• M2: 785,688 km (0.117 R)
• M3: 1,611,618 km (0.06 R)
• M4: 3,139,760 km (0.091 R)
• M5: 3,547,863 km (0.112 R)
• M6: 4,147,451 km (0.028 R)
• M7: 4,990,884 km (0.116 R)
• M8: 5,415,742 km (0.076 R)
• M9: 6,972,009 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160

Radius: 12.7

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.48 AU - 1.96 AU

Year: 1557 Days

Day: 9.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,600,522 km

• M1: 157,975 km (0.103 R)
• M2: 572,511 km (0.11 R)
• M3: 1,168,808 km (0.053 R)
• M4: 1,777,223 km (0.105 R)
• M5: 2,175,901 km (0.107 R)
• M6: 2,590,736 km (0.099 R)
• M7: 3,810,108 km (0.107 R)
• M8: 4,245,588 km (0.052 R)
• M9: 4,849,514 km (0.063 R)
• M10: 5,566,537 km (0.08 R)
• M11: 6,477,139 km (0.033 R)
• M12: 6,903,044 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.9

Radius: 11.2

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.84 AU - 2.18 AU

Year: 1967 Days

Day: 5 Hours

Environment

Temp: -193 °C

Axial Tilt: 153.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,600,522 km

• M1: 139,425 km (0.076 R)
• M2: 564,433 km (0.029 R)
• M3: 923,617 km (0.05 R)
• M4: 1,300,903 km (0.114 R)
• M5: 1,886,728 km (0.117 R)
• M6: 3,987,531 km (0.089 R)
• M7: 5,339,746 km (0.112 R)
• M8: 6,217,587 km (0.118 R)
• M9: 7,378,616 km (0.087 R)
• M10: 11,032,544 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.4

Radius: 8.8

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.68 AU - 2.74 AU

Year: 2268 Days

Day: 7.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,600,522 km

• M1: 109,506 km (0.065 R)
• M2: 415,134 km (0.039 R)
• M3: 742,305 km (0.042 R)
• M4: 1,090,868 km (0.052 R)
• M5: 1,416,692 km (0.092 R)
• M6: 1,727,706 km (0.1 R)
• M7: 2,051,136 km (0.055 R)
• M8: 3,807,565 km (0.109 R)
• M9: 4,588,466 km (0.079 R)
• M10: 5,715,835 km (0.112 R)
• M11: 6,153,409 km (0.047 R)
• M12: 6,813,435 km (0.115 R)
• M13: 8,131,093 km (0.119 R)
• M14: 8,865,170 km (0.086 R)
• M15: 10,669,320 km (0.094 R)
• M16: 11,226,871 km (0.07 R)
• M17: 11,548,956 km (0.115 R)
• M18: 12,628,753 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.8

Radius: 14.3

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.57 AU - 4.61 AU

Year: 5709 Days

Day: 9 Hours

Environment

Temp: -214 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,600,522 km

• M1: 177,872 km (0.095 R)
• M2: 695,032 km (0.114 R)
• M3: 1,479,523 km (0.084 R)
• M4: 2,062,057 km (0.046 R)
• M5: 2,543,313 km (0.036 R)
• M6: 3,116,872 km (0.091 R)
• M7: 3,663,353 km (0.062 R)
• M8: 4,170,789 km (0.084 R)
• M9: 5,043,842 km (0.08 R)
• M10: 5,983,316 km (0.104 R)
• M11: 6,978,142 km (0.106 R)
• M12: 7,669,733 km (0.11 R)
• M13: 8,406,652 km (0.108 R)
• M14: 9,837,257 km (0.034 R)
• M15: 10,437,743 km (0.071 R)
• M16: 11,465,630 km (0.114 R)
• M17: 13,088,019 km (0.093 R)
• M18: 14,094,812 km (0.101 R)
• M19: 15,300,721 km (0.119 R)
• M20: 17,643,573 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 633

Radius: 5.4

Gravity: 21.71 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 6.08 AU - 7.82 AU

Year: 12647 Days

Day: 17.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 54,600,522 km

• M1: 67,169 km (0.069 R)
• M2: 240,404 km (0.096 R)
• M3: 412,441 km (0.085 R)
• M4: 594,203 km (0.058 R)
• M5: 802,293 km (0.056 R)
• M6: 1,047,933 km (0.101 R)
• M7: 1,316,312 km (0.105 R)
• M8: 2,080,906 km (0.07 R)
• M9: 4,021,490 km (0.039 R)
• M10: 4,402,965 km (0.091 R)
• M11: 5,479,770 km (0.111 R)
• M12: 6,641,397 km (0.113 R)
• M13: 8,003,486 km (0.094 R)
• M14: 9,239,464 km (0.06 R)
• M15: 9,798,810 km (0.094 R)
• M16: 10,007,798 km (0.065 R)
• M17: 11,554,341 km (0.115 R)
• M18: 13,444,959 km (0.092 R)
• M19: 15,603,208 km (0.08 R)
• M20: 16,322,324 km (0.103 R)
• M21: 17,826,531 km (0.054 R)
• M22: 20,252,410 km (0.068 R)
• M23: 21,544,188 km (0.066 R)
• M24: 25,060,635 km (0.078 R)
• M25: 36,350,338 km (0.034 R)
• M26: 37,103,563 km (0.086 R)
• M27: 37,611,448 km (0.094 R)
• M28: 40,622,404 km (0.067 R)
• M29: 41,842,973 km (0.04 R)
• M30: 44,499,831 km (0.039 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: 470 - 18,289 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit