🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.3

Radius: 11.4

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.48 AU - 0.66 AU

Year: 292 Days

Day: 6.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,061,072 km

• M1: 141,819 km (0.074 R)
• M2: 518,207 km (0.103 R)
• M3: 1,007,841 km (0.102 R)
• M4: 1,377,198 km (0.05 R)
• M5: 1,889,720 km (0.111 R)
• M6: 2,429,469 km (0.078 R)
• M7: 2,808,999 km (0.088 R)
• M8: 3,358,921 km (0.084 R)
• M9: 3,967,186 km (0.032 R)
• M10: 4,915,188 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.3

Radius: 8

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.58 AU - 0.86 AU

Year: 414 Days

Day: 10.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,061,072 km

• M1: 99,483 km (0.095 R)
• M2: 421,118 km (0.081 R)
• M3: 731,234 km (0.105 R)
• M4: 1,107,024 km (0.106 R)
• M5: 1,424,022 km (0.088 R)
• M6: 2,104,992 km (0.06 R)
• M7: 2,442,933 km (0.079 R)
• M8: 2,758,286 km (0.108 R)
• M9: 3,403,800 km (0.069 R)
• M10: 3,762,536 km (0.091 R)
• M11: 4,236,462 km (0.052 R)
• M12: 4,707,695 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.4

Radius: 12.1

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.01 AU - 1.21 AU

Year: 793 Days

Day: 5.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,061,072 km

• M1: 150,645 km (0.085 R)
• M2: 528,230 km (0.104 R)
• M3: 955,033 km (0.103 R)
• M4: 1,383,032 km (0.081 R)
• M5: 1,784,403 km (0.092 R)
• M6: 2,366,339 km (0.114 R)
• M7: 3,250,014 km (0.079 R)
• M8: 3,627,000 km (0.075 R)
• M9: 4,154,931 km (0.107 R)
• M10: 6,316,321 km (0.111 R)
• M11: 7,128,039 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.2

Radius: 14.7

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.24 AU - 1.5 AU

Year: 1088 Days

Day: 14.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,061,072 km

• M1: 182,809 km (0.109 R)
• M2: 658,530 km (0.105 R)
• M3: 1,124,228 km (0.112 R)
• M4: 1,652,757 km (0.106 R)
• M5: 2,213,899 km (0.054 R)
• M6: 2,708,769 km (0.065 R)
• M7: 3,401,257 km (0.118 R)
• M8: 4,439,766 km (0.081 R)
• M9: 4,961,264 km (0.109 R)
• M10: 5,641,037 km (0.111 R)
• M11: 7,211,665 km (0.095 R)
• M12: 7,762,484 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.6

Radius: 9.4

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.32 AU - 1.5 AU

Year: 1136 Days

Day: 14.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,061,072 km

• M1: 120,277 km (0.085 R)
• M2: 439,369 km (0.089 R)
• M3: 814,411 km (0.038 R)
• M4: 1,167,761 km (0.114 R)
• M5: 1,467,406 km (0.046 R)
• M6: 1,971,550 km (0.109 R)
• M7: 2,270,447 km (0.072 R)
• M8: 2,671,818 km (0.105 R)
• M9: 3,313,294 km (0.097 R)
• M10: 4,201,606 km (0.119 R)
• M11: 4,755,567 km (0.079 R)
• M12: 5,106,972 km (0.11 R)
• M13: 5,779,415 km (0.076 R)
• M14: 6,201,879 km (0.053 R)
• M15: 6,758,682 km (0.105 R)
• M16: 7,300,226 km (0.107 R)
• M17: 8,231,623 km (0.075 R)
• M18: 9,043,490 km (0.111 R)
• M19: 9,818,856 km (0.096 R)
• M20: 10,117,005 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.9

Radius: 8.2

Gravity: 11.2 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.48 AU - 2.12 AU

Year: 1638 Days

Day: 8.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,061,072 km

• M1: 104,120 km (0.105 R)
• M2: 435,330 km (0.12 R)
• M3: 721,810 km (0.059 R)
• M4: 1,022,202 km (0.056 R)
• M5: 1,478,177 km (0.105 R)
• M6: 2,157,949 km (0.076 R)
• M7: 2,575,627 km (0.12 R)
• M8: 3,423,697 km (0.097 R)
• M9: 4,705,900 km (0.1 R)
• M10: 5,211,541 km (0.097 R)
• M11: 6,061,407 km (0.115 R)
• M12: 6,456,495 km (0.043 R)
• M13: 7,297,983 km (0.11 R)
• M14: 8,390,047 km (0.114 R)
• M15: 9,653,401 km (0.106 R)
• M16: 10,930,668 km (0.065 R)
• M17: 12,951,585 km (0.116 R)
• M18: 14,328,634 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.1

Radius: 8.9

Gravity: 11.78 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.64 AU - 2.92 AU

Year: 3144 Days

Day: 10.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,061,072 km

• M1: 110,702 km (0.062 R)
• M2: 389,254 km (0.116 R)
• M3: 965,804 km (0.089 R)
• M4: 1,808,638 km (0.117 R)
• M5: 2,151,666 km (0.11 R)
• M6: 3,649,590 km (0.099 R)
• M7: 4,382,619 km (0.088 R)
• M8: 4,760,055 km (0.109 R)
• M9: 5,236,374 km (0.037 R)
• M10: 6,673,262 km (0.117 R)
• M11: 7,598,824 km (0.117 R)
• M12: 8,075,143 km (0.08 R)
• M13: 13,107,765 km (0.117 R)
• M14: 15,076,922 km (0.088 R)
• M15: 17,761,606 km (0.101 R)
• M16: 19,341,359 km (0.115 R)
• M17: 21,145,210 km (0.106 R)
• M18: 21,478,664 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.6

Radius: 9.8

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.94 AU - 2.98 AU

Year: 3454 Days

Day: 12.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,061,072 km

• M1: 124,465 km (0.082 R)
• M2: 475,272 km (0.088 R)
• M3: 836,402 km (0.054 R)
• M4: 1,426,565 km (0.111 R)
• M5: 1,790,836 km (0.084 R)
• M6: 3,710,027 km (0.103 R)
• M7: 4,181,260 km (0.096 R)
• M8: 5,401,680 km (0.113 R)
• M9: 6,537,726 km (0.092 R)
• M10: 7,894,579 km (0.119 R)
• M11: 8,860,682 km (0.111 R)
• M12: 9,744,057 km (0.067 R)
• M13: 12,371,295 km (0.042 R)
• M14: 13,722,164 km (0.083 R)
• M15: 14,278,967 km (0.099 R)
• M16: 17,001,648 km (0.087 R)
• M17: 23,450,962 km (0.112 R)
• M18: 24,986,285 km (0.056 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 11,544 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit