🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.1

Radius: 13.3

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.8 AU - 1.06 AU

Year: 579 Days

Day: 13.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,085,089 km

• M1: 165,455 km (0.088 R)
• M2: 803,939 km (0.118 R)
• M3: 1,335,311 km (0.093 R)
• M4: 2,316,224 km (0.058 R)
• M5: 2,917,458 km (0.111 R)
• M6: 3,336,182 km (0.105 R)
• M7: 3,846,161 km (0.071 R)
• M8: 4,724,151 km (0.1 R)
• M9: 5,337,951 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.3

Radius: 10.5

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.08 AU - 1.62 AU

Year: 1013 Days

Day: 13.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,085,089 km

• M1: 130,599 km (0.104 R)
• M2: 493,374 km (0.053 R)
• M3: 829,819 km (0.086 R)
• M4: 1,283,400 km (0.032 R)
• M5: 1,683,874 km (0.119 R)
• M6: 2,310,988 km (0.109 R)
• M7: 3,817,738 km (0.111 R)
• M8: 4,301,687 km (0.097 R)
• M9: 6,428,370 km (0.081 R)
• M10: 6,873,125 km (0.049 R)
• M11: 7,902,956 km (0.058 R)
• M12: 8,250,173 km (0.12 R)
• M13: 8,691,487 km (0.04 R)
• M14: 9,353,308 km (0.104 R)
• M15: 9,742,113 km (0.098 R)
• M16: 10,235,486 km (0.106 R)
• M17: 10,680,690 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.1

Radius: 8.7

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.35 AU - 1.57 AU

Year: 1139 Days

Day: 12.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,085,089 km

• M1: 113,096 km (0.112 R)
• M2: 583,132 km (0.049 R)
• M3: 946,207 km (0.094 R)
• M4: 1,964,070 km (0.034 R)
• M5: 3,142,902 km (0.107 R)
• M6: 3,716,310 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.4

Radius: 8.9

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.4 AU - 1.82 AU

Year: 1319 Days

Day: 12.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 92.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,085,089 km

• M1: 110,702 km (0.047 R)
• M2: 473,926 km (0.116 R)
• M3: 838,346 km (0.048 R)
• M4: 1,499,270 km (0.12 R)
• M5: 2,032,137 km (0.111 R)
• M6: 2,554,683 km (0.092 R)
• M7: 4,173,332 km (0.101 R)
• M8: 4,547,626 km (0.077 R)
• M9: 5,208,399 km (0.058 R)
• M10: 6,998,488 km (0.114 R)
• M11: 8,941,614 km (0.066 R)
• M12: 9,681,974 km (0.053 R)
• M13: 10,067,189 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.5

Radius: 12.2

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.08 AU - 2.44 AU

Year: 2194 Days

Day: 13.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,085,089 km

• M1: 151,692 km (0.089 R)
• M2: 729,140 km (0.115 R)
• M3: 1,154,297 km (0.077 R)
• M4: 1,600,099 km (0.069 R)
• M5: 2,510,701 km (0.108 R)
• M6: 3,004,374 km (0.054 R)
• M7: 5,247,893 km (0.107 R)
• M8: 6,041,360 km (0.053 R)
• M9: 6,661,892 km (0.076 R)
• M10: 7,302,620 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.8

Radius: 8.7

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.35 AU - 3.73 AU

Year: 4301 Days

Day: 13.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,085,089 km

• M1: 108,159 km (0.112 R)
• M2: 398,978 km (0.102 R)
• M3: 991,385 km (0.079 R)
• M4: 1,497,026 km (0.079 R)
• M5: 1,770,042 km (0.112 R)
• M6: 3,217,102 km (0.064 R)
• M7: 3,878,175 km (0.072 R)
• M8: 4,914,888 km (0.101 R)
• M9: 5,270,333 km (0.064 R)
• M10: 5,881,141 km (0.084 R)
• M11: 6,834,379 km (0.056 R)
• M12: 7,813,796 km (0.119 R)
• M13: 9,166,310 km (0.075 R)
• M14: 11,406,987 km (0.032 R)
• M15: 12,031,858 km (0.08 R)
• M16: 14,098,403 km (0.109 R)
• M17: 19,727,920 km (0.058 R)
• M18: 22,139,288 km (0.071 R)
• M19: 24,424,545 km (0.082 R)
• M20: 27,795,733 km (0.111 R)
• M21: 29,014,507 km (0.118 R)
• M22: 30,177,780 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.2

Radius: 14.4

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.11 AU - 5.97 AU

Year: 7306 Days

Day: 13.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,085,089 km

• M1: 180,116 km (0.118 R)
• M2: 714,330 km (0.073 R)
• M3: 3,538,738 km (0.108 R)
• M4: 4,064,724 km (0.099 R)
• M5: 4,829,618 km (0.099 R)
• M6: 5,391,657 km (0.081 R)
• M7: 6,886,588 km (0.093 R)
• M8: 8,168,493 km (0.035 R)
• M9: 9,094,204 km (0.09 R)
• M10: 13,185,407 km (0.07 R)
• M11: 15,274,092 km (0.068 R)
• M12: 16,119,171 km (0.103 R)
• M13: 18,234,784 km (0.059 R)
• M14: 24,284,073 km (0.102 R)
• M15: 28,294,044 km (0.114 R)
• M16: 29,661,518 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.7

Radius: 14.4

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.73 AU - 6.09 AU

Year: 8125 Days

Day: 8.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,085,089 km

• M1: 179,069 km (0.066 R)
• M2: 671,096 km (0.12 R)
• M3: 1,464,862 km (0.081 R)
• M4: 2,118,755 km (0.117 R)
• M5: 3,188,230 km (0.049 R)
• M6: 3,780,338 km (0.085 R)
• M7: 4,692,436 km (0.098 R)
• M8: 6,986,969 km (0.119 R)
• M9: 8,175,524 km (0.104 R)
• M10: 9,252,329 km (0.101 R)
• M11: 10,421,736 km (0.063 R)
• M12: 11,781,730 km (0.091 R)
• M13: 12,902,218 km (0.096 R)
• M14: 14,469,256 km (0.117 R)
• M15: 16,811,659 km (0.077 R)
• M16: 18,808,043 km (0.101 R)
• M17: 21,308,272 km (0.095 R)
• M18: 21,805,086 km (0.063 R)
• M19: 24,872,441 km (0.112 R)
• M20: 28,131,880 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 263.7

Radius: 5.3

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.01 AU - 6.85 AU

Year: 10528 Days

Day: 19.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,085,089 km

• M1: 173,534 km (0.104 R)
• M2: 476,170 km (0.076 R)
• M3: 1,202,468 km (0.113 R)
• M4: 1,583,942 km (0.073 R)
• M5: 5,159,780 km (0.094 R)
• M6: 5,643,580 km (0.1 R)
• M7: 5,864,536 km (0.113 R)
• M8: 6,596,967 km (0.037 R)
• M9: 6,842,307 km (0.109 R)
• M10: 10,187,765 km (0.053 R)
• M11: 12,633,540 km (0.117 R)
• M12: 14,426,321 km (0.103 R)
• M13: 18,716,040 km (0.064 R)
• M14: 19,998,543 km (0.069 R)
• M15: 21,414,636 km (0.114 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 19,636 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit