🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.6

Radius: 10.9

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.65 AU - 0.73 AU

Year: 364 Days

Day: 9.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 28,022,772 km

• M1: 135,536 km (0.085 R)
• M2: 508,483 km (0.113 R)
• M3: 1,017,116 km (0.111 R)
• M4: 1,400,834 km (0.031 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.9

Radius: 10.2

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.82 AU - 0.98 AU

Year: 543 Days

Day: 12.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,022,772 km

• M1: 127,906 km (0.053 R)
• M2: 537,804 km (0.082 R)
• M3: 1,075,160 km (0.048 R)
• M4: 1,420,731 km (0.093 R)
• M5: 2,204,175 km (0.094 R)
• M6: 3,838,981 km (0.113 R)
• M7: 4,231,226 km (0.063 R)
• M8: 4,592,804 km (0.105 R)
• M9: 4,944,958 km (0.067 R)
• M10: 5,346,628 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.2

Radius: 10.8

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.92 AU - 1.32 AU

Year: 754 Days

Day: 13.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,022,772 km

• M1: 135,386 km (0.116 R)
• M2: 500,255 km (0.062 R)
• M3: 1,155,943 km (0.093 R)
• M4: 1,499,569 km (0.03 R)
• M5: 1,876,107 km (0.113 R)
• M6: 2,253,692 km (0.12 R)
• M7: 2,705,777 km (0.079 R)
• M8: 3,476,505 km (0.099 R)
• M9: 4,306,175 km (0.106 R)
• M10: 4,829,169 km (0.087 R)
• M11: 6,334,423 km (0.111 R)
• M12: 6,810,593 km (0.112 R)
• M13: 7,287,361 km (0.12 R)
• M14: 8,642,269 km (0.083 R)
• M15: 9,066,229 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.5

Radius: 10.2

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.99 AU - 1.53 AU

Year: 899 Days

Day: 9 Hours

Environment

Temp: -177 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,022,772 km

• M1: 126,859 km (0.109 R)
• M2: 728,990 km (0.119 R)
• M3: 1,247,048 km (0.111 R)
• M4: 1,588,131 km (0.104 R)
• M5: 1,917,845 km (0.027 R)
• M6: 2,352,576 km (0.119 R)
• M7: 2,823,510 km (0.104 R)
• M8: 3,196,308 km (0.065 R)
• M9: 3,522,581 km (0.066 R)
• M10: 3,931,582 km (0.12 R)
• M11: 4,557,350 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.1

Radius: 8.6

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.31 AU - 1.73 AU

Year: 1192 Days

Day: 14.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,022,772 km

• M1: 108,309 km (0.064 R)
• M2: 425,008 km (0.075 R)
• M3: 775,964 km (0.118 R)
• M4: 1,342,342 km (0.097 R)
• M5: 1,866,981 km (0.034 R)
• M6: 2,235,291 km (0.089 R)
• M7: 2,651,473 km (0.089 R)
• M8: 2,935,858 km (0.094 R)
• M9: 3,281,878 km (0.111 R)
• M10: 3,610,545 km (0.118 R)
• M11: 3,898,670 km (0.102 R)
• M12: 4,284,483 km (0.102 R)
• M13: 4,984,302 km (0.071 R)
• M14: 5,860,197 km (0.096 R)
• M15: 6,744,470 km (0.112 R)
• M16: 7,042,619 km (0.066 R)
• M17: 7,839,377 km (0.043 R)
• M18: 8,588,115 km (0.113 R)
• M19: 9,697,832 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.4

Radius: 10.5

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.84 AU - 2.1 AU

Year: 1758 Days

Day: 9 Hours

Environment

Temp: -195 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,022,772 km

• M1: 134,937 km (0.085 R)
• M2: 512,822 km (0.091 R)
• M3: 1,108,371 km (0.063 R)
• M4: 1,535,173 km (0.108 R)
• M5: 2,255,936 km (0.117 R)
• M6: 2,687,376 km (0.115 R)
• M7: 3,173,719 km (0.075 R)
• M8: 3,768,969 km (0.085 R)
• M9: 4,513,966 km (0.087 R)
• M10: 5,077,202 km (0.092 R)
• M11: 6,032,983 km (0.073 R)
• M12: 6,491,650 km (0.106 R)
• M13: 6,896,013 km (0.055 R)
• M14: 7,980,897 km (0.034 R)
• M15: 8,475,019 km (0.105 R)
• M16: 9,492,583 km (0.119 R)
• M17: 10,282,460 km (0.115 R)
• M18: 10,832,980 km (0.089 R)
• M19: 12,295,449 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.2

Radius: 9.1

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 5.26 AU - 6.38 AU

Year: 8927 Days

Day: 12.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 28,022,772 km

• M1: 113,096 km (0.048 R)
• M2: 429,196 km (0.089 R)
• M3: 800,049 km (0.087 R)
• M4: 2,198,640 km (0.107 R)
• M5: 3,033,546 km (0.108 R)
• M6: 5,005,395 km (0.115 R)
• M7: 5,316,858 km (0.07 R)
• M8: 7,074,035 km (0.108 R)
• M9: 7,709,975 km (0.051 R)
• M10: 8,426,998 km (0.03 R)
• M11: 9,004,745 km (0.085 R)
• M12: 10,438,939 km (0.117 R)
• M13: 11,964,389 km (0.041 R)
• M14: 12,580,283 km (0.11 R)
• M15: 13,453,785 km (0.105 R)
• M16: 15,256,440 km (0.097 R)
• M17: 18,808,043 km (0.073 R)
• M18: 20,339,626 km (0.09 R)
• M19: 21,870,012 km (0.073 R)
• M20: 22,705,666 km (0.108 R)
• M21: 23,131,421 km (0.108 R)
• M22: 28,664,149 km (0.085 R)
• M23: 33,459,808 km (0.08 R)
• M24: 35,245,857 km (0.1 R)
• M25: 37,330,054 km (0.1 R)
• M26: 38,885,573 km (0.09 R)
• M27: 41,742,743 km (0.1 R)
• M28: 43,157,340 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35

Radius: 4.5

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 9.17 AU - 10.61 AU

Year: 19776 Days

Day: 17.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,022,772 km

• M1: 55,950 km (0.116 R)
• M2: 296,952 km (0.081 R)
• M3: 600,336 km (0.053 R)
• M4: 1,042,847 km (0.077 R)
• M5: 1,393,654 km (0.072 R)
• M6: 1,627,176 km (0.116 R)
• M7: 3,530,809 km (0.05 R)
• M8: 19,705,331 km (0.109 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 154 - 18,898 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit