🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.6

Radius: 9.4

Gravity: 10.58 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.74 AU - 0.86 AU

Year: 503 Days

Day: 5.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,312,109 km

• M1: 116,986 km (0.102 R)
• M2: 433,086 km (0.1 R)
• M3: 852,109 km (0.064 R)
• M4: 1,315,713 km (0.027 R)
• M5: 1,840,203 km (0.092 R)
• M6: 2,437,847 km (0.106 R)
• M7: 2,733,003 km (0.068 R)
• M8: 3,538,289 km (0.092 R)
• M9: 4,432,286 km (0.048 R)
• M10: 4,745,693 km (0.09 R)
• M11: 5,347,226 km (0.095 R)
• M12: 6,227,460 km (0.055 R)
• M13: 7,011,353 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.8

Radius: 8

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.85 AU - 0.89 AU

Year: 570 Days

Day: 12.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,312,109 km

• M1: 99,483 km (0.031 R)
• M2: 354,996 km (0.057 R)
• M3: 730,337 km (0.117 R)
• M4: 979,268 km (0.046 R)
• M5: 1,317,508 km (0.119 R)
• M6: 1,794,426 km (0.119 R)
• M7: 2,152,265 km (0.115 R)
• M8: 2,517,583 km (0.113 R)
• M9: 3,183,592 km (0.089 R)
• M10: 4,280,893 km (0.078 R)
• M11: 4,572,160 km (0.101 R)
• M12: 5,018,111 km (0.114 R)
• M13: 5,392,106 km (0.062 R)
• M14: 6,141,292 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.6

Radius: 10.7

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.85 AU - 1.03 AU

Year: 641 Days

Day: 6.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,312,109 km

• M1: 133,142 km (0.105 R)
• M2: 473,477 km (0.097 R)
• M3: 818,300 km (0.081 R)
• M4: 1,431,203 km (0.069 R)
• M5: 1,976,188 km (0.052 R)
• M6: 2,474,947 km (0.063 R)
• M7: 2,966,227 km (0.109 R)
• M8: 3,361,614 km (0.116 R)
• M9: 3,778,842 km (0.088 R)
• M10: 4,507,085 km (0.075 R)
• M11: 5,376,398 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.2

Radius: 11.7

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.91 AU - 1.03 AU

Year: 672 Days

Day: 10.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,312,109 km

• M1: 147,204 km (0.1 R)
• M2: 1,152,352 km (0.093 R)
• M3: 1,620,444 km (0.093 R)
• M4: 2,188,766 km (0.081 R)
• M5: 3,125,100 km (0.088 R)
• M6: 4,366,762 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.1

Radius: 15

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.25 AU - 1.43 AU

Year: 1090 Days

Day: 10.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,312,109 km

• M1: 186,549 km (0.044 R)
• M2: 749,037 km (0.053 R)
• M3: 2,363,347 km (0.116 R)
• M4: 3,806,667 km (0.064 R)
• M5: 4,467,142 km (0.113 R)
• M6: 5,817,861 km (0.088 R)
• M7: 6,437,795 km (0.084 R)

Asteroid Belt

Center: 1.67 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.2

Radius: 12.8

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.92 AU - 2.08 AU

Year: 1988 Days

Day: 14.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,312,109 km

• M1: 159,172 km (0.12 R)
• M2: 665,711 km (0.085 R)
• M3: 1,586,485 km (0.114 R)
• M4: 2,456,995 km (0.054 R)
• M5: 4,058,889 km (0.098 R)
• M6: 6,227,460 km (0.03 R)
• M7: 9,613,010 km (0.085 R)
• M8: 11,543,420 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586

Radius: 8.2

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.53 AU - 4.91 AU

Year: 6094 Days

Day: 11.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,312,109 km

• M1: 102,026 km (0.101 R)
• M2: 1,190,500 km (0.059 R)
• M3: 1,548,338 km (0.107 R)
• M4: 2,348,986 km (0.108 R)
• M5: 2,622,451 km (0.076 R)
• M6: 2,898,309 km (0.116 R)
• M7: 4,201,905 km (0.103 R)
• M8: 4,477,913 km (0.102 R)
• M9: 4,819,744 km (0.073 R)
• M10: 9,180,223 km (0.116 R)
• M11: 11,477,747 km (0.095 R)
• M12: 12,321,928 km (0.032 R)
• M13: 16,483,890 km (0.055 R)
• M14: 19,015,086 km (0.03 R)
• M15: 22,320,302 km (0.107 R)
• M16: 31,355,265 km (0.064 R)
• M17: 32,218,893 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.3

Radius: 8.7

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.9 AU - 5.34 AU

Year: 6980 Days

Day: 10.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,312,109 km

• M1: 108,309 km (0.095 R)
• M2: 1,145,022 km (0.119 R)
• M3: 1,745,508 km (0.077 R)
• M4: 2,170,216 km (0.062 R)
• M5: 3,935,172 km (0.027 R)
• M6: 5,990,497 km (0.067 R)
• M7: 7,953,072 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 194.8

Radius: 4.8

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 8.26 AU - 8.62 AU

Year: 17235 Days

Day: 23.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,312,109 km

• M1: 60,438 km (0.085 R)
• M2: 522,097 km (0.069 R)
• M3: 775,216 km (0.067 R)
• M4: 1,528,741 km (0.118 R)
• M5: 2,682,589 km (0.115 R)
• M6: 3,201,394 km (0.1 R)
• M7: 3,533,502 km (0.057 R)
• M8: 5,784,351 km (0.114 R)
• M9: 6,989,213 km (0.083 R)
• M10: 7,264,772 km (0.091 R)
• M11: 8,178,216 km (0.039 R)
• M12: 13,128,859 km (0.106 R)
• M13: 15,714,658 km (0.065 R)
• M14: 18,397,097 km (0.101 R)
• M15: 26,404,922 km (0.119 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 522 - 11,673 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit