🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.4

Radius: 12.1

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.49 AU - 0.81 AU

Year: 362 Days

Day: 11 Hours

Environment

Temp: -159 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,216,733 km

• M1: 150,495 km (0.053 R)
• M2: 567,275 km (0.115 R)
• M3: 996,471 km (0.083 R)
• M4: 1,575,266 km (0.072 R)
• M5: 1,968,708 km (0.106 R)
• M6: 2,414,210 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.8

Radius: 11.8

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.82 AU - 1.26 AU

Year: 732 Days

Day: 8.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,216,733 km

• M1: 146,756 km (0.06 R)
• M2: 526,585 km (0.108 R)
• M3: 911,949 km (0.062 R)
• M4: 1,759,121 km (0.115 R)
• M5: 2,127,880 km (0.109 R)
• M6: 2,712,658 km (0.102 R)
• M7: 3,810,707 km (0.087 R)
• M8: 4,297,797 km (0.116 R)
• M9: 5,201,967 km (0.054 R)
• M10: 5,634,604 km (0.082 R)
• M11: 6,169,566 km (0.098 R)
• M12: 6,738,337 km (0.075 R)
• M13: 7,565,912 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.9

Radius: 11.9

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.03 AU - 1.31 AU

Year: 874 Days

Day: 5.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 82.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,216,733 km

• M1: 150,795 km (0.077 R)
• M2: 534,064 km (0.092 R)
• M3: 921,523 km (0.094 R)
• M4: 1,589,328 km (0.034 R)
• M5: 2,986,422 km (0.081 R)
• M6: 3,758,647 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.9

Radius: 8.6

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.21 AU - 2.83 AU

Year: 2761 Days

Day: 12.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,216,733 km

• M1: 107,112 km (0.056 R)
• M2: 395,986 km (0.112 R)
• M3: 726,746 km (0.109 R)
• M4: 1,026,989 km (0.054 R)
• M5: 1,834,219 km (0.057 R)
• M6: 2,712,060 km (0.076 R)
• M7: 3,593,640 km (0.047 R)
• M8: 3,864,562 km (0.058 R)
• M9: 4,739,261 km (0.066 R)
• M10: 6,903,194 km (0.111 R)
• M11: 7,820,977 km (0.115 R)
• M12: 10,073,322 km (0.034 R)
• M13: 11,993,860 km (0.116 R)
• M14: 13,359,389 km (0.113 R)
• M15: 15,812,944 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.5

Radius: 8.9

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.62 AU - 2.78 AU

Year: 3062 Days

Day: 9.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,216,733 km

• M1: 110,702 km (0.087 R)
• M2: 558,898 km (0.062 R)
• M3: 1,045,240 km (0.095 R)
• M4: 1,374,505 km (0.064 R)
• M5: 1,975,889 km (0.115 R)
• M6: 2,344,348 km (0.047 R)
• M7: 2,665,834 km (0.093 R)
• M8: 3,507,771 km (0.025 R)
• M9: 3,870,845 km (0.065 R)
• M10: 4,695,129 km (0.066 R)
• M11: 5,683,074 km (0.116 R)
• M12: 6,185,274 km (0.117 R)
• M13: 7,493,357 km (0.112 R)
• M14: 8,097,733 km (0.085 R)
• M15: 10,182,678 km (0.118 R)
• M16: 10,686,225 km (0.069 R)
• M17: 11,287,608 km (0.037 R)
• M18: 12,340,179 km (0.115 R)
• M19: 13,874,604 km (0.108 R)
• M20: 16,620,024 km (0.04 R)
• M21: 18,601,448 km (0.093 R)
• M22: 19,530,600 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.1

Radius: 10.1

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.58 AU - 3.72 AU

Year: 3859 Days

Day: 10.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 153.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,216,733 km

• M1: 125,812 km (0.108 R)
• M2: 506,538 km (0.091 R)
• M3: 1,113,607 km (0.106 R)
• M4: 2,131,770 km (0.074 R)
• M5: 2,632,474 km (0.071 R)
• M6: 3,062,867 km (0.09 R)
• M7: 5,301,001 km (0.082 R)
• M8: 5,933,500 km (0.105 R)
• M9: 8,065,270 km (0.033 R)
• M10: 10,663,486 km (0.081 R)
• M11: 12,036,345 km (0.066 R)
• M12: 12,408,994 km (0.117 R)
• M13: 13,275,764 km (0.093 R)
• M14: 15,345,899 km (0.054 R)
• M15: 16,062,623 km (0.106 R)
• M16: 24,356,478 km (0.099 R)
• M17: 25,560,292 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 263.2

Radius: 6.2

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.72 AU - 7.88 AU

Year: 13614 Days

Day: 15.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,216,733 km

• M1: 77,193 km (0.103 R)
• M2: 467,194 km (0.116 R)
• M3: 785,538 km (0.055 R)
• M4: 1,004,998 km (0.105 R)
• M5: 1,277,566 km (0.113 R)
• M6: 1,503,608 km (0.095 R)
• M7: 1,956,591 km (0.09 R)
• M8: 3,288,161 km (0.12 R)
• M9: 3,594,238 km (0.119 R)
• M10: 3,867,853 km (0.051 R)
• M11: 4,182,008 km (0.103 R)
• M12: 4,685,256 km (0.077 R)
• M13: 6,366,586 km (0.09 R)
• M14: 6,730,707 km (0.086 R)
• M15: 7,381,608 km (0.068 R)
• M16: 7,661,505 km (0.071 R)
• M17: 8,808,023 km (0.084 R)
• M18: 9,032,271 km (0.106 R)
• M19: 18,392,909 km (0.081 R)
• M20: 22,533,179 km (0.109 R)
• M21: 26,410,158 km (0.088 R)
• M22: 29,195,072 km (0.088 R)
• M23: 31,018,670 km (0.081 R)
• M24: 36,250,257 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249.4

Radius: 3.6

Gravity: 19.24 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 8.74 AU - 9.74 AU

Year: 19387 Days

Day: 17.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,216,733 km

• M1: 44,730 km (0.058 R)
• M2: 167,101 km (0.112 R)
• M3: 1,955,543 km (0.084 R)
• M4: 2,171,712 km (0.056 R)
• M5: 2,423,635 km (0.113 R)
• M6: 2,567,099 km (0.106 R)
• M7: 2,804,062 km (0.081 R)
• M8: 6,186,171 km (0.092 R)
• M9: 10,744,568 km (0.079 R)
• M10: 11,076,675 km (0.065 R)
• M11: 12,173,228 km (0.082 R)
• M12: 16,763,788 km (0.116 R)
• M13: 21,330,263 km (0.085 R)
• M14: 24,699,805 km (0.118 R)
• M15: 24,891,440 km (0.114 R)
• M16: 28,723,240 km (0.055 R)
• M17: 33,983,251 km (0.113 R)
• M18: 41,045,467 km (0.052 R)
• M19: 42,538,603 km (0.063 R)
• M20: 47,678,487 km (0.085 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 17,713 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit