🌌 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 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.52 AU - 0.56 AU

Year: 252 Days

Day: 23.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.5

Radius: 9.8

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.86 AU - 0.98 AU

Year: 561 Days

Day: 9.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,302,332 km

• M1: 122,072 km (0.119 R)
• M2: 635,342 km (0.051 R)
• M3: 942,018 km (0.101 R)
• M4: 1,383,780 km (0.117 R)
• M5: 1,720,525 km (0.1 R)
• M6: 2,248,007 km (0.048 R)
• M7: 2,614,372 km (0.068 R)
• M8: 2,963,983 km (0.119 R)
• M9: 3,396,021 km (0.113 R)
• M10: 3,703,445 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.7

Radius: 14.3

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.11 AU - 1.45 AU

Year: 921 Days

Day: 10.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 85.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,302,332 km

• M1: 177,872 km (0.051 R)
• M2: 876,045 km (0.067 R)
• M3: 1,455,737 km (0.101 R)
• M4: 2,077,615 km (0.117 R)
• M5: 2,529,251 km (0.08 R)
• M6: 3,453,018 km (0.113 R)
• M7: 4,211,479 km (0.049 R)
• M8: 4,929,100 km (0.079 R)
• M9: 6,549,544 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.4

Radius: 12.3

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.47 AU - 1.59 AU

Year: 1203 Days

Day: 7 Hours

Environment

Temp: -172 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,302,332 km

• M1: 153,039 km (0.116 R)
• M2: 633,397 km (0.078 R)
• M3: 1,344,885 km (0.051 R)
• M4: 2,106,338 km (0.092 R)
• M5: 3,017,539 km (0.069 R)
• M6: 3,534,250 km (0.078 R)
• M7: 4,377,383 km (0.12 R)
• M8: 5,175,488 km (0.043 R)
• M9: 5,961,924 km (0.083 R)
• M10: 8,317,342 km (0.104 R)
• M11: 9,196,230 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.6

Radius: 13.7

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.99 AU - 2.37 AU

Year: 2047 Days

Day: 9.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,302,332 km

• M1: 180,116 km (0.032 R)
• M2: 683,812 km (0.106 R)
• M3: 1,140,833 km (0.101 R)
• M4: 2,048,444 km (0.038 R)
• M5: 2,497,387 km (0.032 R)
• M6: 3,241,337 km (0.101 R)
• M7: 4,499,455 km (0.058 R)
• M8: 5,078,399 km (0.067 R)
• M9: 7,781,632 km (0.091 R)
• M10: 9,573,366 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.2

Radius: 9.6

Gravity: 9.88 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.09 AU - 6.21 AU

Year: 7431 Days

Day: 7.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 40,302,332 km

• M1: 119,379 km (0.081 R)
• M2: 429,346 km (0.114 R)
• M3: 730,337 km (0.08 R)
• M4: 1,203,814 km (0.086 R)
• M5: 1,613,114 km (0.112 R)
• M6: 2,392,968 km (0.092 R)
• M7: 3,112,533 km (0.07 R)
• M8: 3,892,985 km (0.081 R)
• M9: 4,567,073 km (0.059 R)
• M10: 4,977,271 km (0.093 R)
• M11: 7,021,974 km (0.053 R)
• M12: 7,690,827 km (0.089 R)
• M13: 8,145,754 km (0.116 R)
• M14: 9,292,870 km (0.116 R)
• M15: 10,050,434 km (0.112 R)
• M16: 11,315,583 km (0.114 R)
• M17: 12,179,361 km (0.055 R)
• M18: 12,684,104 km (0.119 R)
• M19: 13,437,778 km (0.112 R)
• M20: 15,162,193 km (0.112 R)
• M21: 16,753,765 km (0.102 R)
• M22: 18,970,506 km (0.086 R)
• M23: 19,496,791 km (0.065 R)
• M24: 20,974,818 km (0.104 R)
• M25: 22,526,148 km (0.063 R)
• M26: 24,860,174 km (0.055 R)
• M27: 26,316,958 km (0.108 R)
• M28: 27,446,273 km (0.071 R)
• M29: 31,235,736 km (0.11 R)
• M30: 33,472,673 km (0.108 R)
• M31: 34,241,457 km (0.076 R)
• M32: 36,618,716 km (0.057 R)
• M33: 39,103,687 km (0.119 R)
• M34: 42,206,197 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.2

Radius: 8.4

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 5.33 AU - 6.25 AU

Year: 8858 Days

Day: 9.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,302,332 km

• M1: 104,419 km (0.069 R)
• M2: 835,355 km (0.118 R)
• M3: 1,466,209 km (0.03 R)
• M4: 1,915,451 km (0.083 R)
• M5: 2,331,932 km (0.107 R)
• M6: 3,152,925 km (0.112 R)
• M7: 3,503,433 km (0.05 R)
• M8: 4,414,932 km (0.064 R)
• M9: 5,414,845 km (0.104 R)
• M10: 6,183,030 km (0.119 R)
• M11: 6,523,814 km (0.119 R)
• M12: 7,583,565 km (0.119 R)
• M13: 8,461,106 km (0.071 R)
• M14: 10,040,560 km (0.076 R)
• M15: 11,499,588 km (0.103 R)
• M16: 20,432,077 km (0.052 R)
• M17: 20,884,312 km (0.082 R)
• M18: 26,934,797 km (0.103 R)
• M19: 36,539,430 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 961.5

Radius: 4.1

Gravity: 57.2 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.47 AU - 8.03 AU

Year: 11150 Days

Day: 24 Hours

Environment

Temp: -216 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 40,302,332 km

• M1: 51,013 km (0.09 R)
• M2: 287,228 km (0.062 R)
• M3: 584,928 km (0.093 R)
• M4: 752,477 km (0.083 R)
• M5: 1,029,682 km (0.078 R)
• M6: 1,289,833 km (0.105 R)
• M7: 1,576,762 km (0.085 R)
• M8: 2,104,244 km (0.095 R)
• M9: 2,357,363 km (0.044 R)
• M10: 2,544,361 km (0.081 R)
• M11: 3,604,411 km (0.066 R)
• M12: 3,881,167 km (0.104 R)
• M13: 4,962,610 km (0.03 R)
• M14: 5,518,067 km (0.119 R)
• M15: 5,810,830 km (0.083 R)
• M16: 10,395,257 km (0.105 R)
• M17: 10,561,161 km (0.09 R)
• M18: 10,785,258 km (0.104 R)
• M19: 10,955,351 km (0.072 R)
• M20: 11,953,169 km (0.067 R)
• M21: 12,442,952 km (0.086 R)
• M22: 13,138,283 km (0.074 R)
• M23: 15,594,830 km (0.106 R)
• M24: 15,812,495 km (0.086 R)
• M25: 16,930,739 km (0.099 R)
• M26: 21,038,248 km (0.077 R)
• M27: 24,865,260 km (0.06 R)
• M28: 29,241,148 km (0.057 R)
• M29: 29,905,362 km (0.071 R)
• M30: 30,353,707 km (0.083 R)
• M31: 31,034,677 km (0.094 R)
• M32: 33,377,978 km (0.112 R)
• M33: 33,860,431 km (0.112 R)
• M34: 34,962,818 km (0.03 R)
• M35: 36,597,174 km (0.098 R)
• M36: 38,150,150 km (0.102 R)
• M37: 40,972,912 km (0.096 R)
• M38: 41,664,952 km (0.049 R)
• M39: 49,485,779 km (0.047 R)
• M40: 50,112,893 km (0.107 R)
• M41: 51,543,049 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.9

Radius: 3.4

Gravity: 25.08 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 6.25 AU - 7.81 AU

Year: 11851 Days

Day: 24.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,302,332 km

• M1: 42,336 km (0.105 R)
• M2: 201,060 km (0.117 R)
• M3: 322,832 km (0.082 R)
• M4: 808,576 km (0.113 R)
• M5: 1,034,320 km (0.081 R)
• M6: 1,695,542 km (0.073 R)
• M7: 2,878,413 km (0.075 R)
• M8: 4,778,904 km (0.063 R)
• M9: 6,488,060 km (0.087 R)
• M10: 8,310,910 km (0.112 R)
• M11: 16,290,610 km (0.112 R)
• M12: 17,506,990 km (0.106 R)
• M13: 38,870,314 km (0.107 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 14,912 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit