🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.8

Radius: 10.9

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.61 AU - 0.95 AU

Year: 476 Days

Day: 10.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 26,312,461 km

• M1: 135,536 km (0.083 R)
• M2: 598,391 km (0.084 R)
• M3: 1,062,145 km (0.044 R)
• M4: 1,463,366 km (0.105 R)
• M5: 2,541,817 km (0.114 R)
• M6: 2,936,756 km (0.086 R)
• M7: 4,709,640 km (0.06 R)
• M8: 5,428,907 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.1

Radius: 11.8

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.72 AU - 0.9 AU

Year: 503 Days

Day: 8.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,312,461 km

• M1: 146,756 km (0.086 R)
• M2: 539,001 km (0.096 R)
• M3: 977,024 km (0.079 R)
• M4: 1,453,942 km (0.117 R)
• M5: 1,924,277 km (0.088 R)
• M6: 2,302,760 km (0.072 R)
• M7: 3,005,122 km (0.111 R)
• M8: 3,382,707 km (0.086 R)
• M9: 3,792,007 km (0.12 R)
• M10: 4,191,583 km (0.111 R)
• M11: 4,665,210 km (0.076 R)
• M12: 5,043,842 km (0.116 R)
• M13: 5,511,485 km (0.077 R)
• M14: 5,917,194 km (0.034 R)
• M15: 6,323,951 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.2

Radius: 12.1

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.7 AU - 1.08 AU

Year: 580 Days

Day: 7.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 26,312,461 km

• M1: 150,645 km (0.102 R)
• M2: 670,348 km (0.076 R)
• M3: 1,199,326 km (0.116 R)
• M4: 1,653,505 km (0.106 R)
• M5: 2,076,418 km (0.096 R)
• M6: 2,545,857 km (0.069 R)
• M7: 3,066,158 km (0.114 R)
• M8: 3,480,694 km (0.108 R)
• M9: 3,956,265 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.9

Radius: 11.6

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.8 AU - 1.22 AU

Year: 701 Days

Day: 9.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 26,312,461 km

• M1: 146,157 km (0.114 R)
• M2: 754,721 km (0.072 R)
• M3: 1,310,178 km (0.099 R)
• M4: 2,201,482 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187

Radius: 14.1

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.38 AU - 1.52 AU

Year: 1205 Days

Day: 12.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 26,312,461 km

• M1: 175,329 km (0.115 R)
• M2: 689,945 km (0.057 R)
• M3: 1,247,796 km (0.104 R)
• M4: 1,728,753 km (0.083 R)
• M5: 2,495,442 km (0.114 R)
• M6: 3,264,674 km (0.117 R)
• M7: 3,787,968 km (0.106 R)
• M8: 4,521,296 km (0.104 R)
• M9: 5,578,355 km (0.114 R)
• M10: 6,877,014 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.6

Radius: 13.9

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.04 AU - 2.5 AU

Year: 2361 Days

Day: 10.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 26,312,461 km

• M1: 172,935 km (0.112 R)
• M2: 627,114 km (0.086 R)
• M3: 1,345,782 km (0.055 R)
• M4: 1,799,064 km (0.117 R)
• M5: 2,383,842 km (0.081 R)
• M6: 3,922,606 km (0.044 R)
• M7: 4,539,547 km (0.097 R)
• M8: 5,788,390 km (0.115 R)
• M9: 8,156,226 km (0.078 R)
• M10: 8,718,414 km (0.093 R)
• M11: 9,165,712 km (0.062 R)
• M12: 13,138,283 km (0.048 R)
• M13: 14,668,520 km (0.12 R)
• M14: 15,204,230 km (0.1 R)
• M15: 15,752,805 km (0.091 R)
• M16: 16,784,283 km (0.084 R)

Asteroid Belt

Center: 3.1 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.2

Radius: 11.7

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.16 AU - 4.68 AU

Year: 5357 Days

Day: 6 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 26,312,461 km

• M1: 145,708 km (0.077 R)
• M2: 531,820 km (0.108 R)
• M3: 901,926 km (0.095 R)
• M4: 2,450,563 km (0.114 R)
• M5: 3,378,219 km (0.106 R)
• M6: 3,877,427 km (0.095 R)
• M7: 4,551,665 km (0.092 R)
• M8: 5,678,137 km (0.081 R)
• M9: 6,846,646 km (0.067 R)
• M10: 7,328,351 km (0.117 R)
• M11: 10,129,571 km (0.1 R)
• M12: 11,890,338 km (0.092 R)
• M13: 12,792,114 km (0.042 R)
• M14: 13,207,398 km (0.094 R)
• M15: 13,577,952 km (0.059 R)
• M16: 14,229,600 km (0.045 R)
• M17: 14,619,302 km (0.108 R)
• M18: 19,186,675 km (0.104 R)
• M19: 23,218,637 km (0.1 R)
• M20: 27,182,232 km (0.091 R)
• M21: 28,043,168 km (0.094 R)
• M22: 29,819,643 km (0.027 R)
• M23: 30,183,764 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.4

Radius: 5.2

Gravity: 16.18 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 5.24 AU - 7.52 AU

Year: 11124 Days

Day: 15.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,312,461 km

• M1: 81,232 km (0.107 R)
• M2: 344,823 km (0.107 R)
• M3: 860,487 km (0.12 R)
• M4: 1,212,192 km (0.114 R)
• M5: 1,728,155 km (0.088 R)
• M6: 2,492,600 km (0.111 R)
• M7: 3,937,566 km (0.115 R)
• M8: 4,484,944 km (0.101 R)
• M9: 7,506,971 km (0.098 R)
• M10: 9,106,022 km (0.084 R)
• M11: 11,234,351 km (0.081 R)
• M12: 14,286,746 km (0.116 R)
• M13: 16,374,385 km (0.09 R)
• M14: 16,580,082 km (0.098 R)
• M15: 19,183,234 km (0.076 R)
• M16: 22,549,934 km (0.106 R)
• M17: 27,334,224 km (0.071 R)
• M18: 31,893,069 km (0.091 R)
• M19: 35,084,590 km (0.114 R)
• M20: 41,075,985 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39

Radius: 6.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 7.93 AU - 9.03 AU

Year: 17045 Days

Day: 15.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,312,461 km

• M1: 76,445 km (0.073 R)
• M2: 1,680,582 km (0.108 R)
• M3: 2,191,160 km (0.11 R)
• M4: 2,747,963 km (0.11 R)
• M5: 3,434,767 km (0.038 R)
• M6: 7,116,072 km (0.114 R)
• M7: 7,618,720 km (0.112 R)
• M8: 8,180,760 km (0.085 R)
• M9: 8,883,570 km (0.039 R)
• M10: 9,545,840 km (0.085 R)
• M11: 10,366,534 km (0.086 R)
• M12: 11,960,649 km (0.085 R)
• M13: 12,718,961 km (0.077 R)
• M14: 13,508,987 km (0.088 R)
• M15: 13,762,406 km (0.111 R)
• M16: 14,754,688 km (0.102 R)
• M17: 20,840,928 km (0.071 R)
• M18: 21,247,535 km (0.106 R)
• M19: 24,693,971 km (0.066 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: 323 - 13,947 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit