🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.9

Radius: 14.8

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.43 AU - 0.67 AU

Year: 272 Days

Day: 11.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,170,844 km

• M1: 184,005 km (0.095 R)
• M2: 661,372 km (0.057 R)
• M3: 1,287,589 km (0.109 R)
• M4: 1,824,645 km (0.058 R)
• M5: 2,454,003 km (0.027 R)
• M6: 3,067,654 km (0.074 R)
• M7: 3,782,881 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.6

Radius: 10.5

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.63 AU - 0.63 AU

Year: 333 Days

Day: 10.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,170,844 km

• M1: 130,599 km (0.061 R)
• M2: 592,408 km (0.116 R)
• M3: 1,245,701 km (0.078 R)
• M4: 1,595,461 km (0.074 R)
• M5: 1,982,321 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.3

Radius: 12.3

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.59 AU - 0.71 AU

Year: 349 Days

Day: 11.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,170,844 km

• M1: 153,039 km (0.045 R)
• M2: 614,997 km (0.067 R)
• M3: 1,049,279 km (0.09 R)
• M4: 1,694,794 km (0.059 R)
• M5: 2,236,937 km (0.106 R)
• M6: 2,821,266 km (0.049 R)
• M7: 3,900,615 km (0.086 R)
• M8: 4,325,622 km (0.057 R)
• M9: 4,975,625 km (0.115 R)
• M10: 5,493,084 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814

Radius: 13.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.84 AU - 0.92 AU

Year: 550 Days

Day: 7.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,170,844 km

• M1: 173,085 km (0.088 R)
• M2: 809,324 km (0.083 R)
• M3: 1,405,921 km (0.116 R)
• M4: 1,866,233 km (0.097 R)
• M5: 3,260,486 km (0.114 R)
• M6: 3,957,312 km (0.119 R)
• M7: 4,799,997 km (0.089 R)
• M8: 5,247,594 km (0.116 R)
• M9: 5,777,619 km (0.089 R)
• M10: 6,639,901 km (0.107 R)
• M11: 7,134,023 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.8

Radius: 15

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.85 AU - 0.99 AU

Year: 588 Days

Day: 6.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,170,844 km

• M1: 186,549 km (0.106 R)
• M2: 670,198 km (0.101 R)
• M3: 1,211,294 km (0.075 R)
• M4: 1,830,330 km (0.102 R)
• M5: 2,907,584 km (0.033 R)
• M6: 3,651,385 km (0.108 R)
• M7: 4,332,803 km (0.089 R)
• M8: 4,941,068 km (0.116 R)
• M9: 5,829,530 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.3

Radius: 12.3

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.8 AU - 1.14 AU

Year: 637 Days

Day: 12.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,170,844 km

• M1: 153,936 km (0.097 R)
• M2: 580,141 km (0.112 R)
• M3: 1,028,635 km (0.056 R)
• M4: 1,422,825 km (0.117 R)
• M5: 1,806,993 km (0.081 R)
• M6: 3,045,813 km (0.047 R)
• M7: 3,654,377 km (0.084 R)
• M8: 4,803,139 km (0.112 R)
• M9: 5,387,468 km (0.102 R)
• M10: 7,002,676 km (0.072 R)
• M11: 7,406,740 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.3

Radius: 14.7

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.46 AU - 2.62 AU

Year: 2699 Days

Day: 13.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,170,844 km

• M1: 183,557 km (0.116 R)
• M2: 853,306 km (0.118 R)
• M3: 1,378,694 km (0.06 R)
• M4: 2,039,318 km (0.086 R)
• M5: 2,754,396 km (0.08 R)
• M6: 3,418,611 km (0.094 R)
• M7: 4,069,062 km (0.112 R)
• M8: 5,595,260 km (0.098 R)
• M9: 7,035,438 km (0.104 R)
• M10: 8,414,581 km (0.083 R)
• M11: 9,359,591 km (0.062 R)
• M12: 13,321,092 km (0.043 R)
• M13: 14,510,545 km (0.107 R)
• M14: 15,228,465 km (0.033 R)
• M15: 16,943,455 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 805.7

Radius: 5.4

Gravity: 27.63 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 5.55 AU - 6.75 AU

Year: 10170 Days

Day: 17.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,170,844 km

• M1: 67,169 km (0.107 R)
• M2: 264,938 km (0.104 R)
• M3: 688,898 km (0.112 R)
• M4: 1,118,394 km (0.093 R)
• M5: 1,446,911 km (0.115 R)
• M6: 1,619,247 km (0.041 R)
• M7: 3,288,909 km (0.055 R)
• M8: 4,450,088 km (0.049 R)
• M9: 7,088,246 km (0.03 R)
• M10: 7,335,980 km (0.102 R)
• M11: 10,777,629 km (0.11 R)
• M12: 13,152,196 km (0.063 R)
• M13: 13,589,620 km (0.033 R)
• M14: 14,231,395 km (0.042 R)
• M15: 15,095,772 km (0.071 R)
• M16: 16,637,228 km (0.104 R)
• M17: 19,461,187 km (0.093 R)
• M18: 22,412,005 km (0.116 R)
• M19: 24,599,425 km (0.078 R)
• M20: 24,787,918 km (0.117 R)
• M21: 29,182,057 km (0.117 R)
• M22: 30,900,637 km (0.03 R)
• M23: 33,372,143 km (0.111 R)
• M24: 42,377,786 km (0.072 R)
• M25: 47,287,438 km (0.092 R)
• M26: 47,725,162 km (0.097 R)
• M27: 48,018,523 km (0.045 R)
• M28: 49,502,833 km (0.039 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 13,901 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit