🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.4

Radius: 12.6

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.45 AU - 0.63 AU

Year: 274 Days

Day: 5.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,833,449 km

• M1: 156,779 km (0.039 R)
• M2: 582,534 km (0.113 R)
• M3: 992,582 km (0.041 R)
• M4: 1,399,638 km (0.081 R)
• M5: 1,866,981 km (0.095 R)
• M6: 2,318,767 km (0.042 R)
• M7: 2,771,600 km (0.105 R)
• M8: 3,194,214 km (0.11 R)
• M9: 3,703,445 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.8

Radius: 14.8

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.59 AU - 0.97 AU

Year: 476 Days

Day: 11.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,833,449 km

• M1: 184,305 km (0.092 R)
• M2: 660,475 km (0.03 R)
• M3: 1,154,746 km (0.106 R)
• M4: 1,620,743 km (0.071 R)
• M5: 2,101,850 km (0.12 R)
• M6: 2,689,620 km (0.116 R)
• M7: 3,242,235 km (0.068 R)
• M8: 3,870,845 km (0.073 R)
• M9: 4,981,160 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.3

Radius: 12.6

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.77 AU - 1.11 AU

Year: 629 Days

Day: 7.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,833,449 km

• M1: 159,023 km (0.09 R)
• M2: 585,825 km (0.059 R)
• M3: 1,127,818 km (0.096 R)
• M4: 1,564,195 km (0.048 R)
• M5: 2,083,898 km (0.085 R)
• M6: 2,502,024 km (0.112 R)
• M7: 4,097,186 km (0.085 R)
• M8: 4,639,180 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.6

Radius: 11.3

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.86 AU - 1.1 AU

Year: 670 Days

Day: 10.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,833,449 km

• M1: 140,472 km (0.087 R)
• M2: 510,129 km (0.032 R)
• M3: 960,718 km (0.099 R)
• M4: 1,463,965 km (0.046 R)
• M5: 2,021,666 km (0.086 R)
• M6: 2,421,391 km (0.055 R)
• M7: 2,897,262 km (0.077 R)
• M8: 3,332,293 km (0.055 R)
• M9: 4,229,730 km (0.043 R)
• M10: 4,599,387 km (0.046 R)
• M11: 5,177,433 km (0.075 R)
• M12: 6,280,867 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.8

Radius: 10.1

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.91 AU - 1.13 AU

Year: 711 Days

Day: 10.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,833,449 km

• M1: 125,662 km (0.098 R)
• M2: 513,719 km (0.112 R)
• M3: 870,809 km (0.072 R)
• M4: 1,413,401 km (0.09 R)
• M5: 1,931,608 km (0.086 R)
• M6: 2,344,647 km (0.07 R)
• M7: 2,816,330 km (0.054 R)
• M8: 3,191,222 km (0.098 R)
• M9: 3,846,161 km (0.116 R)
• M10: 4,455,473 km (0.067 R)
• M11: 5,020,355 km (0.11 R)
• M12: 5,479,620 km (0.079 R)
• M13: 6,588,889 km (0.088 R)
• M14: 7,254,001 km (0.076 R)
• M15: 7,579,376 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.6

Radius: 10.2

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.92 AU - 2.86 AU

Year: 2550 Days

Day: 10.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,833,449 km

• M1: 128,205 km (0.091 R)
• M2: 464,801 km (0.111 R)
• M3: 834,008 km (0.071 R)
• M4: 1,340,846 km (0.081 R)
• M5: 2,067,293 km (0.116 R)
• M6: 2,723,878 km (0.069 R)
• M7: 3,152,177 km (0.114 R)
• M8: 3,609,049 km (0.091 R)
• M9: 4,524,588 km (0.105 R)
• M10: 7,576,833 km (0.112 R)
• M11: 8,174,776 km (0.106 R)
• M12: 9,434,091 km (0.07 R)
• M13: 9,998,074 km (0.103 R)
• M14: 11,647,541 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.4

Radius: 9.8

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.51 AU - 4.67 AU

Year: 6788 Days

Day: 7.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,833,449 km

• M1: 122,221 km (0.114 R)
• M2: 773,571 km (0.086 R)
• M3: 1,293,124 km (0.093 R)
• M4: 1,628,223 km (0.062 R)
• M5: 2,183,979 km (0.1 R)
• M6: 2,665,385 km (0.118 R)
• M7: 3,528,864 km (0.103 R)
• M8: 12,089,602 km (0.117 R)
• M9: 14,140,888 km (0.051 R)
• M10: 17,878,442 km (0.037 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.1

Radius: 13.1

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.39 AU - 6.09 AU

Year: 8280 Days

Day: 13 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 42,833,449 km

• M1: 162,912 km (0.051 R)
• M2: 614,099 km (0.08 R)
• M3: 1,092,962 km (0.091 R)
• M4: 1,727,407 km (0.116 R)
• M5: 2,618,711 km (0.115 R)
• M6: 3,147,539 km (0.077 R)
• M7: 3,871,443 km (0.098 R)
• M8: 5,056,558 km (0.11 R)
• M9: 5,950,106 km (0.104 R)
• M10: 6,435,102 km (0.047 R)
• M11: 6,871,629 km (0.103 R)
• M12: 7,764,129 km (0.097 R)
• M13: 9,498,866 km (0.106 R)
• M14: 10,114,761 km (0.049 R)
• M15: 12,288,567 km (0.118 R)
• M16: 13,367,916 km (0.032 R)
• M17: 15,135,864 km (0.105 R)
• M18: 15,714,957 km (0.036 R)
• M19: 18,037,314 km (0.081 R)
• M20: 20,973,173 km (0.094 R)
• M21: 21,532,070 km (0.117 R)
• M22: 22,265,100 km (0.088 R)
• M23: 24,388,941 km (0.103 R)
• M24: 28,255,896 km (0.081 R)
• M25: 28,741,940 km (0.095 R)
• M26: 31,049,936 km (0.117 R)
• M27: 35,466,364 km (0.116 R)
• M28: 39,071,673 km (0.101 R)
• M29: 40,407,582 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.8

Radius: 7.8

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 7.42 AU - 11.52 AU

Year: 20116 Days

Day: 21.6 Hours

Environment

Temp: -244 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,833,449 km

• M1: 103,671 km (0.048 R)
• M2: 1,015,171 km (0.097 R)
• M3: 1,333,515 km (0.074 R)
• M4: 1,675,047 km (0.111 R)
• M5: 3,518,542 km (0.058 R)
• M6: 3,965,391 km (0.059 R)
• M7: 4,477,614 km (0.07 R)
• M8: 5,503,406 km (0.054 R)
• M9: 7,642,506 km (0.045 R)
• M10: 8,918,875 km (0.106 R)
• M11: 9,941,227 km (0.109 R)
• M12: 11,511,407 km (0.101 R)
• M13: 18,343,691 km (0.114 R)
• M14: 20,299,833 km (0.113 R)
• M15: 21,732,831 km (0.057 R)
• M16: 22,724,814 km (0.085 R)
• M17: 23,062,157 km (0.089 R)
• M18: 23,833,334 km (0.087 R)
• M19: 27,565,203 km (0.094 R)
• M20: 37,319,732 km (0.092 R)
• M21: 39,707,613 km (0.071 R)
• M22: 41,438,610 km (0.052 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 11,718 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit