🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.9

Radius: 12.1

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.48 AU - 0.66 AU

Year: 292 Days

Day: 5.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,562,830 km

• M1: 150,495 km (0.088 R)
• M2: 650,152 km (0.053 R)
• M3: 1,540,409 km (0.096 R)
• M4: 2,087,189 km (0.114 R)
• M5: 2,545,707 km (0.066 R)
• M6: 2,926,882 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.3

Radius: 12.3

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.74 AU - 0.86 AU

Year: 485 Days

Day: 10.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,562,830 km

• M1: 153,039 km (0.118 R)
• M2: 543,040 km (0.099 R)
• M3: 944,112 km (0.05 R)
• M4: 1,400,685 km (0.08 R)
• M5: 1,923,380 km (0.063 R)
• M6: 3,226,377 km (0.092 R)
• M7: 4,235,116 km (0.119 R)
• M8: 5,129,861 km (0.12 R)
• M9: 6,368,980 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.5

Radius: 8

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.76 AU - 1.2 AU

Year: 658 Days

Day: 11.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,562,830 km

• M1: 99,483 km (0.091 R)
• M2: 503,995 km (0.108 R)
• M3: 864,825 km (0.051 R)
• M4: 1,169,107 km (0.029 R)
• M5: 1,735,634 km (0.08 R)
• M6: 2,031,988 km (0.029 R)
• M7: 2,454,901 km (0.099 R)
• M8: 2,778,780 km (0.088 R)
• M9: 3,032,199 km (0.116 R)
• M10: 3,734,262 km (0.057 R)
• M11: 4,398,477 km (0.086 R)
• M12: 4,656,084 km (0.11 R)
• M13: 5,107,870 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.7

Radius: 11.1

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.22 AU - 1.68 AU

Year: 1184 Days

Day: 14.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,562,830 km

• M1: 138,079 km (0.108 R)
• M2: 515,065 km (0.08 R)
• M3: 1,005,746 km (0.065 R)
• M4: 1,376,450 km (0.114 R)
• M5: 1,858,604 km (0.077 R)
• M6: 2,429,170 km (0.112 R)
• M7: 3,321,671 km (0.11 R)
• M8: 3,750,568 km (0.098 R)
• M9: 4,100,478 km (0.114 R)
• M10: 4,702,459 km (0.111 R)
• M11: 5,264,648 km (0.078 R)
• M12: 5,623,085 km (0.07 R)
• M13: 5,997,827 km (0.036 R)
• M14: 6,937,900 km (0.1 R)
• M15: 9,395,045 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.6

Radius: 14.5

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.14 AU - 1.82 AU

Year: 1221 Days

Day: 8.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,562,830 km

• M1: 180,565 km (0.085 R)
• M2: 632,051 km (0.097 R)
• M3: 1,122,283 km (0.072 R)
• M4: 1,692,401 km (0.067 R)
• M5: 2,455,649 km (0.061 R)
• M6: 3,359,370 km (0.091 R)
• M7: 3,926,645 km (0.038 R)
• M8: 4,950,792 km (0.104 R)
• M9: 5,631,313 km (0.12 R)
• M10: 7,045,162 km (0.117 R)
• M11: 8,788,426 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.5

Radius: 9.1

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.32 AU - 1.92 AU

Year: 1399 Days

Day: 14.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,562,830 km

• M1: 113,096 km (0.115 R)
• M2: 422,764 km (0.094 R)
• M3: 879,635 km (0.079 R)
• M4: 2,290,343 km (0.09 R)
• M5: 3,486,079 km (0.091 R)
• M6: 4,811,068 km (0.091 R)
• M7: 10,111,021 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.7

Radius: 13.6

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.17 AU - 4.53 AU

Year: 6154 Days

Day: 9.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,562,830 km

• M1: 169,195 km (0.092 R)
• M2: 615,446 km (0.109 R)
• M3: 1,073,066 km (0.075 R)
• M4: 1,561,503 km (0.115 R)
• M5: 2,417,352 km (0.093 R)
• M6: 3,567,161 km (0.066 R)
• M7: 4,460,560 km (0.11 R)
• M8: 7,296,636 km (0.038 R)
• M9: 7,829,205 km (0.084 R)
• M10: 8,502,545 km (0.117 R)
• M11: 10,268,248 km (0.027 R)
• M12: 12,565,623 km (0.087 R)
• M13: 13,701,220 km (0.089 R)
• M14: 14,904,286 km (0.097 R)
• M15: 17,084,675 km (0.12 R)
• M16: 20,358,774 km (0.065 R)
• M17: 22,143,327 km (0.106 R)
• M18: 27,353,372 km (0.107 R)
• M19: 28,121,857 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.4

Radius: 14.1

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.04 AU - 5.58 AU

Year: 7155 Days

Day: 5.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,562,830 km

• M1: 177,423 km (0.103 R)
• M2: 738,415 km (0.063 R)
• M3: 1,321,398 km (0.071 R)
• M4: 1,911,412 km (0.078 R)
• M5: 2,527,606 km (0.037 R)
• M6: 3,768,221 km (0.063 R)
• M7: 4,702,310 km (0.095 R)
• M8: 5,284,994 km (0.095 R)
• M9: 7,419,905 km (0.049 R)
• M10: 9,308,578 km (0.119 R)
• M11: 16,039,884 km (0.044 R)
• M12: 17,311,316 km (0.056 R)
• M13: 19,696,654 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.8

Radius: 5.5

Gravity: 11.07 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.6 AU - 12.6 AU

Year: 23407 Days

Day: 24.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,562,830 km

• M1: 70,610 km (0.036 R)
• M2: 356,342 km (0.116 R)
• M3: 757,264 km (0.084 R)
• M4: 1,058,255 km (0.108 R)
• M5: 1,543,850 km (0.112 R)
• M6: 2,186,522 km (0.113 R)
• M7: 2,968,471 km (0.115 R)
• M8: 3,144,996 km (0.102 R)
• M9: 3,717,058 km (0.026 R)
• M10: 4,420,467 km (0.073 R)
• M11: 5,579,552 km (0.11 R)
• M12: 6,373,318 km (0.082 R)
• M13: 8,837,195 km (0.099 R)
• M14: 11,683,444 km (0.057 R)
• M15: 11,997,899 km (0.116 R)
• M16: 12,512,815 km (0.071 R)
• M17: 16,146,996 km (0.041 R)
• M18: 17,828,326 km (0.116 R)
• M19: 18,413,852 km (0.107 R)
• M20: 19,800,026 km (0.056 R)
• M21: 21,068,766 km (0.11 R)
• M22: 25,723,803 km (0.109 R)
• M23: 25,935,932 km (0.119 R)
• M24: 37,814,901 km (0.036 R)
• M25: 42,068,118 km (0.093 R)
• M26: 42,362,527 km (0.073 R)
• M27: 44,309,693 km (0.064 R)
• M28: 45,228,223 km (0.077 R)
• M29: 51,846,882 km (0.109 R)
• M30: 55,828,130 km (0.111 R)
• M31: 63,036,354 km (0.088 R)
• M32: 64,783,657 km (0.053 R)
• M33: 66,164,595 km (0.082 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 11,760 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit