🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142

Radius: 10.2

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.43 AU - 0.69 AU

Year: 284 Days

Day: 10.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 18,339,136 km

• M1: 127,308 km (0.071 R)
• M2: 468,391 km (0.089 R)
• M3: 804,986 km (0.091 R)
• M4: 1,175,241 km (0.092 R)
• M5: 1,710,053 km (0.117 R)
• M6: 2,189,365 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.7

Radius: 14.2

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.64 AU - 0.94 AU

Year: 476 Days

Day: 9 Hours

Environment

Temp: -155 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 18,339,136 km

• M1: 177,573 km (0.036 R)
• M2: 733,628 km (0.053 R)
• M3: 1,179,430 km (0.077 R)
• M4: 1,843,195 km (0.073 R)
• M5: 2,319,665 km (0.082 R)
• M6: 3,111,785 km (0.12 R)
• M7: 3,649,739 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.2

Radius: 8.6

Gravity: 9.13 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.83 AU - 0.89 AU

Year: 541 Days

Day: 12.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 18,339,136 km

• M1: 107,112 km (0.071 R)
• M2: 387,608 km (0.061 R)
• M3: 747,989 km (0.065 R)
• M4: 1,024,297 km (0.05 R)
• M5: 1,350,719 km (0.074 R)
• M6: 1,730,847 km (0.036 R)
• M7: 2,011,643 km (0.089 R)
• M8: 2,470,310 km (0.05 R)
• M9: 3,209,024 km (0.094 R)
• M10: 3,947,140 km (0.113 R)
• M11: 4,970,389 km (0.111 R)
• M12: 5,439,678 km (0.108 R)
• M13: 5,846,883 km (0.118 R)
• M14: 6,623,446 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.8

Radius: 10

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.11 AU - 2.51 AU

Year: 2381 Days

Day: 12.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 18,339,136 km

• M1: 124,465 km (0.025 R)
• M2: 479,611 km (0.073 R)
• M3: 831,465 km (0.111 R)
• M4: 1,198,578 km (0.119 R)
• M5: 2,071,631 km (0.11 R)
• M6: 2,584,453 km (0.114 R)
• M7: 3,338,576 km (0.066 R)
• M8: 3,741,293 km (0.073 R)
• M9: 4,082,975 km (0.047 R)
• M10: 8,231,174 km (0.077 R)
• M11: 8,594,996 km (0.092 R)
• M12: 8,906,459 km (0.107 R)
• M13: 9,651,307 km (0.092 R)
• M14: 10,437,294 km (0.077 R)
• M15: 12,214,367 km (0.072 R)
• M16: 12,808,869 km (0.104 R)
• M17: 13,631,358 km (0.034 R)
• M18: 14,576,368 km (0.052 R)
• M19: 14,930,615 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746

Radius: 14.1

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.1 AU - 4.26 AU

Year: 5796 Days

Day: 9.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 18,339,136 km

• M1: 175,478 km (0.103 R)
• M2: 761,154 km (0.086 R)
• M3: 1,314,068 km (0.106 R)
• M4: 2,091,677 km (0.042 R)
• M5: 4,516,061 km (0.067 R)
• M6: 5,398,389 km (0.084 R)
• M7: 7,360,066 km (0.057 R)
• M8: 8,991,430 km (0.081 R)
• M9: 9,804,196 km (0.048 R)
• M10: 10,618,756 km (0.063 R)
• M11: 11,186,480 km (0.109 R)
• M12: 11,724,733 km (0.088 R)
• M13: 12,538,546 km (0.064 R)
• M14: 13,012,621 km (0.028 R)
• M15: 15,326,003 km (0.093 R)
• M16: 16,801,187 km (0.11 R)
• M17: 17,443,112 km (0.097 R)
• M18: 17,968,200 km (0.1 R)
• M19: 18,504,060 km (0.088 R)
• M20: 21,419,274 km (0.098 R)
• M21: 21,945,858 km (0.099 R)
• M22: 23,182,284 km (0.113 R)
• M23: 25,206,344 km (0.113 R)
• M24: 31,497,981 km (0.089 R)
• M25: 33,070,404 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759.1

Radius: 5.6

Gravity: 24.21 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6.56 AU - 6.58 AU

Year: 11422 Days

Day: 21.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 18,339,136 km

• M1: 70,311 km (0.041 R)
• M2: 308,471 km (0.076 R)
• M3: 515,813 km (0.082 R)
• M4: 865,723 km (0.096 R)
• M5: 1,076,955 km (0.081 R)
• M6: 1,417,290 km (0.116 R)
• M7: 2,924,190 km (0.071 R)
• M8: 5,442,221 km (0.119 R)
• M9: 6,795,334 km (0.089 R)
• M10: 10,146,924 km (0.079 R)
• M11: 10,522,116 km (0.119 R)
• M12: 11,937,910 km (0.116 R)
• M13: 13,095,498 km (0.109 R)
• M14: 14,935,103 km (0.079 R)
• M15: 15,211,261 km (0.091 R)
• M16: 16,349,850 km (0.083 R)
• M17: 18,477,581 km (0.082 R)
• M18: 20,697,314 km (0.066 R)
• M19: 23,458,143 km (0.087 R)
• M20: 29,264,784 km (0.106 R)
• M21: 30,024,442 km (0.116 R)
• M22: 30,243,902 km (0.069 R)
• M23: 31,470,006 km (0.096 R)
• M24: 39,794,081 km (0.086 R)
• M25: 51,172,345 km (0.12 R)
• M26: 51,642,681 km (0.088 R)
• M27: 53,875,429 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25

Radius: 5.7

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 5.33 AU - 8.37 AU

Year: 12160 Days

Day: 19.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,339,136 km

• M1: 196,572 km (0.111 R)
• M2: 462,706 km (0.062 R)
• M3: 1,407,566 km (0.076 R)
• M4: 2,492,450 km (0.109 R)
• M5: 3,325,112 km (0.099 R)
• M6: 4,066,369 km (0.098 R)
• M7: 4,756,464 km (0.045 R)
• M8: 6,861,456 km (0.109 R)
• M9: 7,323,115 km (0.108 R)
• M10: 8,275,904 km (0.065 R)
• M11: 8,865,619 km (0.07 R)
• M12: 15,152,619 km (0.036 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.8

Radius: 4.9

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 5.66 AU - 8.44 AU

Year: 12696 Days

Day: 15.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 18,339,136 km

• M1: 94,995 km (0.091 R)
• M2: 3,168,782 km (0.119 R)
• M3: 4,763,196 km (0.083 R)
• M4: 5,363,832 km (0.059 R)
• M5: 8,635,238 km (0.12 R)
• M6: 11,686,885 km (0.077 R)
• M7: 12,816,648 km (0.11 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 368 - 11,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit