🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.6

Radius: 11.6

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.44 AU - 0.72 AU

Year: 310 Days

Day: 13.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,904,145 km

• M1: 144,212 km (0.107 R)
• M2: 660,624 km (0.098 R)
• M3: 1,021,604 km (0.096 R)
• M4: 1,802,206 km (0.037 R)
• M5: 2,483,923 km (0.056 R)
• M6: 3,032,349 km (0.094 R)
• M7: 3,726,483 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259

Radius: 14.6

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.49 AU - 0.75 AU

Year: 343 Days

Day: 12.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,904,145 km

• M1: 182,061 km (0.087 R)
• M2: 1,022,651 km (0.04 R)
• M3: 1,591,123 km (0.074 R)
• M4: 2,768,458 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.4

Radius: 14.5

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.84 AU - 1.2 AU

Year: 724 Days

Day: 7.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,904,145 km

• M1: 180,415 km (0.029 R)
• M2: 802,892 km (0.067 R)
• M3: 1,274,125 km (0.025 R)
• M4: 1,896,901 km (0.111 R)
• M5: 2,526,110 km (0.039 R)
• M6: 3,293,098 km (0.066 R)
• M7: 4,473,276 km (0.113 R)
• M8: 5,161,426 km (0.113 R)
• M9: 5,776,273 km (0.1 R)
• M10: 6,497,335 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.9

Radius: 11.4

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.41 AU - 2.33 AU

Year: 1798 Days

Day: 13.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,904,145 km

• M1: 142,268 km (0.091 R)
• M2: 520,002 km (0.12 R)
• M3: 939,175 km (0.065 R)
• M4: 1,955,992 km (0.093 R)
• M5: 2,746,318 km (0.109 R)
• M6: 3,120,761 km (0.103 R)
• M7: 3,863,814 km (0.067 R)
• M8: 4,805,233 km (0.107 R)
• M9: 6,139,197 km (0.098 R)
• M10: 6,547,450 km (0.11 R)
• M11: 7,735,407 km (0.112 R)
• M12: 9,524,747 km (0.096 R)
• M13: 10,213,495 km (0.111 R)
• M14: 11,195,755 km (0.036 R)
• M15: 12,359,776 km (0.103 R)
• M16: 14,122,787 km (0.098 R)
• M17: 14,610,925 km (0.115 R)
• M18: 15,156,359 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.1

Radius: 10.2

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.52 AU - 2.32 AU

Year: 1870 Days

Day: 14.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,904,145 km

• M1: 126,859 km (0.096 R)
• M2: 454,927 km (0.046 R)
• M3: 779,405 km (0.093 R)
• M4: 1,124,078 km (0.07 R)
• M5: 1,670,859 km (0.095 R)
• M6: 2,069,537 km (0.115 R)
• M7: 2,997,792 km (0.107 R)
• M8: 3,380,912 km (0.059 R)
• M9: 3,811,754 km (0.077 R)
• M10: 4,360,479 km (0.051 R)
• M11: 4,680,020 km (0.114 R)
• M12: 5,833,569 km (0.065 R)
• M13: 7,052,792 km (0.065 R)
• M14: 7,662,104 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222

Radius: 9.8

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.01 AU - 4.41 AU

Year: 5023 Days

Day: 9 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,904,145 km

• M1: 121,922 km (0.113 R)
• M2: 556,654 km (0.082 R)
• M3: 971,189 km (0.04 R)
• M4: 1,416,093 km (0.086 R)
• M5: 1,720,824 km (0.087 R)
• M6: 2,540,321 km (0.064 R)
• M7: 2,897,860 km (0.12 R)
• M8: 3,342,615 km (0.082 R)
• M9: 3,912,134 km (0.06 R)
• M10: 4,544,933 km (0.091 R)
• M11: 4,909,503 km (0.068 R)
• M12: 5,343,038 km (0.105 R)
• M13: 5,749,645 km (0.072 R)
• M14: 7,524,623 km (0.084 R)
• M15: 10,751,449 km (0.094 R)
• M16: 11,113,775 km (0.103 R)
• M17: 12,337,037 km (0.098 R)
• M18: 13,369,412 km (0.107 R)
• M19: 14,025,548 km (0.058 R)
• M20: 14,751,996 km (0.091 R)
• M21: 15,862,760 km (0.12 R)
• M22: 16,491,520 km (0.04 R)
• M23: 17,466,000 km (0.111 R)
• M24: 18,940,437 km (0.067 R)
• M25: 20,129,889 km (0.113 R)
• M26: 20,805,025 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.5

Radius: 9.7

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.69 AU - 5.25 AU

Year: 7788 Days

Day: 14.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,904,145 km

• M1: 127,457 km (0.065 R)
• M2: 508,932 km (0.051 R)
• M3: 1,119,142 km (0.077 R)
• M4: 2,111,574 km (0.115 R)
• M5: 2,857,319 km (0.052 R)
• M6: 3,648,094 km (0.097 R)
• M7: 4,531,768 km (0.112 R)
• M8: 6,361,051 km (0.051 R)
• M9: 9,075,504 km (0.077 R)
• M10: 11,149,978 km (0.094 R)
• M11: 12,947,397 km (0.115 R)
• M12: 13,964,662 km (0.036 R)
• M13: 15,831,195 km (0.107 R)
• M14: 16,322,773 km (0.089 R)
• M15: 16,824,375 km (0.102 R)
• M16: 20,307,462 km (0.043 R)
• M17: 20,693,125 km (0.077 R)
• M18: 23,531,745 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.4

Radius: 4.7

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 8.12 AU - 10.58 AU

Year: 20097 Days

Day: 21 Hours

Environment

Temp: -242 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,904,145 km

• M1: 58,493 km (0.064 R)
• M2: 225,743 km (0.088 R)
• M3: 426,055 km (0.096 R)
• M4: 853,456 km (0.105 R)
• M5: 1,161,328 km (0.116 R)
• M6: 1,809,685 km (0.089 R)
• M7: 2,144,186 km (0.102 R)
• M8: 2,633,521 km (0.052 R)
• M9: 2,894,270 km (0.105 R)
• M10: 3,731,120 km (0.061 R)
• M11: 4,034,206 km (0.057 R)
• M12: 4,218,510 km (0.112 R)
• M13: 11,589,197 km (0.09 R)
• M14: 12,901,620 km (0.103 R)
• M15: 15,367,591 km (0.071 R)
• M16: 16,144,752 km (0.076 R)
• M17: 16,409,690 km (0.085 R)
• M18: 19,666,435 km (0.112 R)
• M19: 21,128,754 km (0.114 R)
• M20: 21,685,259 km (0.097 R)
• M21: 25,409,348 km (0.068 R)
• M22: 29,341,378 km (0.096 R)
• M23: 32,281,126 km (0.051 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: 166 - 11,971 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit