🌌 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: 722.8

Radius: 9

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.54 AU - 0.58 AU

Year: 284 Days

Day: 6.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 3,926,388 km

• M1: 111,899 km (0.037 R)
• M2: 518,506 km (0.11 R)
• M3: 857,495 km (0.096 R)
• M4: 1,178,682 km (0.1 R)
• M5: 1,766,601 km (0.113 R)
• M6: 2,951,267 km (0.106 R)
• M7: 3,852,893 km (0.084 R)
• M8: 4,233,321 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.8

Radius: 13.4

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.54 AU - 0.68 AU

Year: 323 Days

Day: 11.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 3,926,388 km

• M1: 166,802 km (0.108 R)
• M2: 584,329 km (0.072 R)
• M3: 1,024,446 km (0.096 R)
• M4: 1,489,396 km (0.071 R)
• M5: 1,922,333 km (0.101 R)
• M6: 2,711,461 km (0.065 R)
• M7: 3,233,259 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.2

Radius: 12.6

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.62 AU - 0.9 AU

Year: 449 Days

Day: 13.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 3,926,388 km

• M1: 156,779 km (0.116 R)
• M2: 572,960 km (0.101 R)
• M3: 1,239,418 km (0.025 R)
• M4: 2,360,954 km (0.065 R)
• M5: 2,830,392 km (0.065 R)
• M6: 3,337,678 km (0.09 R)
• M7: 3,744,435 km (0.082 R)
• M8: 4,213,125 km (0.059 R)
• M9: 4,973,680 km (0.113 R)
• M10: 5,770,289 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.2

Radius: 10.5

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.94 AU - 1 AU

Year: 648 Days

Day: 13.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 3,926,388 km

• M1: 131,796 km (0.091 R)
• M2: 478,414 km (0.113 R)
• M3: 823,835 km (0.093 R)
• M4: 1,194,689 km (0.097 R)
• M5: 1,776,325 km (0.115 R)
• M6: 2,450,862 km (0.099 R)
• M7: 2,978,942 km (0.1 R)
• M8: 3,384,203 km (0.094 R)
• M9: 3,812,951 km (0.053 R)
• M10: 4,568,719 km (0.077 R)
• M11: 5,992,891 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807

Radius: 12.9

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.86 AU - 1.12 AU

Year: 668 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 3,926,388 km

• M1: 161,117 km (0.106 R)
• M2: 774,767 km (0.118 R)
• M3: 1,839,455 km (0.098 R)
• M4: 3,000,634 km (0.12 R)
• M5: 3,486,528 km (0.087 R)
• M6: 4,784,290 km (0.048 R)
• M7: 6,361,500 km (0.094 R)
• M8: 7,059,374 km (0.047 R)
• M9: 7,506,672 km (0.058 R)
• M10: 8,092,497 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.3

Radius: 8.5

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.8 AU - 1.22 AU

Year: 688 Days

Day: 9.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 3,926,388 km

• M1: 105,766 km (0.036 R)
• M2: 523,593 km (0.096 R)
• M3: 1,229,395 km (0.07 R)
• M4: 1,764,208 km (0.103 R)
• M5: 2,917,757 km (0.096 R)
• M6: 4,159,419 km (0.071 R)
• M7: 5,203,313 km (0.12 R)
• M8: 5,648,068 km (0.114 R)
• M9: 6,041,211 km (0.107 R)
• M10: 6,634,366 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.1

Radius: 9.3

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.82 AU - 1.24 AU

Year: 709 Days

Day: 11.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 3,926,388 km

• M1: 119,678 km (0.082 R)
• M2: 427,850 km (0.099 R)
• M3: 829,670 km (0.062 R)
• M4: 1,350,719 km (0.078 R)
• M5: 1,725,462 km (0.053 R)
• M6: 2,123,542 km (0.034 R)
• M7: 3,153,822 km (0.115 R)
• M8: 3,450,774 km (0.078 R)
• M9: 4,994,624 km (0.042 R)
• M10: 5,575,513 km (0.118 R)
• M11: 5,956,239 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.7

Radius: 10.7

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.95 AU - 1.15 AU

Year: 730 Days

Day: 9.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 3,926,388 km

• M1: 133,142 km (0.103 R)
• M2: 704,157 km (0.094 R)
• M3: 1,325,736 km (0.054 R)
• M4: 1,670,260 km (0.112 R)
• M5: 2,179,043 km (0.106 R)
• M6: 2,648,182 km (0.083 R)
• M7: 3,457,805 km (0.081 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: 335 - 16,857 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit