🌌 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 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.1

Radius: 13

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.44 AU - 0.62 AU

Year: 271 Days

Day: 10.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 72,786,643 km

• M1: 161,715 km (0.092 R)
• M2: 575,204 km (0.118 R)
• M3: 1,033,871 km (0.075 R)
• M4: 1,504,057 km (0.112 R)
• M5: 1,986,809 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.6

Radius: 14.3

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.54 AU - 0.58 AU

Year: 295 Days

Day: 5.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,786,643 km

• M1: 178,620 km (0.096 R)
• M2: 799,900 km (0.069 R)
• M3: 1,261,708 km (0.104 R)
• M4: 1,936,245 km (0.047 R)
• M5: 2,410,770 km (0.083 R)
• M6: 2,917,607 km (0.084 R)
• M7: 3,403,052 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.1

Radius: 14

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.54 AU - 0.66 AU

Year: 327 Days

Day: 6.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,786,643 km

• M1: 174,282 km (0.046 R)
• M2: 614,548 km (0.105 R)
• M3: 1,077,853 km (0.049 R)
• M4: 2,011,194 km (0.094 R)
• M5: 2,823,510 km (0.076 R)
• M6: 3,412,178 km (0.095 R)
• M7: 4,070,109 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.7

Radius: 9.1

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.67 AU - 0.73 AU

Year: 412 Days

Day: 9.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,786,643 km

• M1: 113,246 km (0.118 R)
• M2: 521,498 km (0.096 R)
• M3: 1,017,864 km (0.054 R)
• M4: 1,781,860 km (0.077 R)
• M5: 2,462,979 km (0.115 R)
• M6: 2,822,313 km (0.074 R)
• M7: 3,791,708 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.8

Radius: 13.4

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.65 AU - 0.87 AU

Year: 466 Days

Day: 10.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,786,643 km

• M1: 166,652 km (0.102 R)
• M2: 661,522 km (0.094 R)
• M3: 1,217,727 km (0.084 R)
• M4: 1,714,392 km (0.094 R)
• M5: 2,409,423 km (0.119 R)
• M6: 3,186,734 km (0.067 R)
• M7: 3,659,164 km (0.101 R)
• M8: 4,112,445 km (0.081 R)
• M9: 4,646,211 km (0.104 R)
• M10: 5,429,655 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.8

Radius: 12.3

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.25 AU - 2.07 AU

Year: 1503 Days

Day: 8.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,786,643 km

• M1: 153,039 km (0.038 R)
• M2: 552,615 km (0.071 R)
• M3: 1,013,226 km (0.115 R)
• M4: 1,823,299 km (0.098 R)
• M5: 2,985,824 km (0.026 R)
• M6: 3,504,629 km (0.084 R)
• M7: 3,945,644 km (0.091 R)
• M8: 5,285,742 km (0.076 R)
• M9: 5,890,715 km (0.108 R)
• M10: 6,785,311 km (0.112 R)
• M11: 9,082,536 km (0.116 R)
• M12: 9,952,148 km (0.07 R)
• M13: 11,013,096 km (0.074 R)
• M14: 12,258,199 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.1

Radius: 11.8

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.76 AU - 1.92 AU

Year: 1754 Days

Day: 14.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,786,643 km

• M1: 256,860 km (0.096 R)
• M2: 647,908 km (0.064 R)
• M3: 1,058,255 km (0.05 R)
• M4: 1,656,198 km (0.08 R)
• M5: 3,105,053 km (0.085 R)
• M6: 3,505,976 km (0.088 R)
• M7: 4,056,197 km (0.118 R)
• M8: 4,501,550 km (0.093 R)
• M9: 5,973,144 km (0.098 R)
• M10: 7,873,037 km (0.099 R)
• M11: 10,521,966 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 762.9

Radius: 3.2

Gravity: 74.5 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.94 AU - 7.58 AU

Year: 12355 Days

Day: 22.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 72,786,643 km

• M1: 40,541 km (0.046 R)
• M2: 162,463 km (0.076 R)
• M3: 320,588 km (0.063 R)
• M4: 717,322 km (0.103 R)
• M5: 998,865 km (0.098 R)
• M6: 1,507,348 km (0.075 R)
• M7: 2,038,720 km (0.107 R)
• M8: 2,286,603 km (0.119 R)
• M9: 4,214,920 km (0.079 R)
• M10: 4,680,768 km (0.107 R)
• M11: 6,401,592 km (0.089 R)
• M12: 7,315,037 km (0.056 R)
• M13: 7,712,518 km (0.104 R)
• M14: 7,939,608 km (0.091 R)
• M15: 9,041,546 km (0.093 R)
• M16: 9,243,054 km (0.087 R)
• M17: 10,851,082 km (0.079 R)
• M18: 12,081,674 km (0.111 R)
• M19: 12,326,117 km (0.118 R)
• M20: 14,063,546 km (0.074 R)
• M21: 14,266,251 km (0.101 R)
• M22: 14,955,598 km (0.051 R)
• M23: 15,957,605 km (0.093 R)
• M24: 17,079,888 km (0.066 R)
• M25: 18,575,717 km (0.035 R)
• M26: 20,935,624 km (0.081 R)
• M27: 22,461,821 km (0.11 R)
• M28: 23,205,023 km (0.105 R)
• M29: 23,582,758 km (0.066 R)
• M30: 24,253,555 km (0.117 R)
• M31: 27,905,239 km (0.097 R)
• M32: 33,321,280 km (0.062 R)
• M33: 33,560,936 km (0.083 R)
• M34: 35,023,554 km (0.109 R)
• M35: 36,021,821 km (0.097 R)
• M36: 54,340,230 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.6

Radius: 4.7

Gravity: 28.59 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 7.16 AU - 11.16 AU

Year: 19487 Days

Day: 20.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,786,643 km

• M1: 58,493 km (0.118 R)
• M2: 308,920 km (0.063 R)
• M3: 468,690 km (0.078 R)
• M4: 675,883 km (0.101 R)
• M5: 2,841,911 km (0.114 R)
• M6: 2,993,304 km (0.098 R)
• M7: 3,230,416 km (0.096 R)
• M8: 3,537,242 km (0.116 R)
• M9: 4,273,862 km (0.113 R)
• M10: 5,485,305 km (0.105 R)
• M11: 6,381,247 km (0.082 R)
• M12: 8,614,893 km (0.056 R)
• M13: 14,919,545 km (0.087 R)
• M14: 17,391,650 km (0.085 R)
• M15: 17,814,414 km (0.102 R)
• M16: 18,945,523 km (0.076 R)
• M17: 22,227,551 km (0.077 R)
• M18: 26,088,672 km (0.059 R)
• M19: 26,309,329 km (0.063 R)
• M20: 32,110,585 km (0.097 R)
• M21: 34,175,035 km (0.115 R)
• M22: 36,052,638 km (0.088 R)
• M23: 36,877,969 km (0.035 R)
• M24: 41,493,363 km (0.082 R)
• M25: 41,944,849 km (0.086 R)
• M26: 44,722,583 km (0.108 R)
• M27: 47,129,164 km (0.056 R)
• M28: 55,590,270 km (0.12 R)
• M29: 59,506,443 km (0.073 R)
• M30: 62,020,734 km (0.072 R)
• M31: 67,053,356 km (0.103 R)
• M32: 69,986,970 km (0.066 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: 262 - 10,326 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit