🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.4

Radius: 12.6

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.55 AU - 0.65 AU

Year: 310 Days

Day: 8.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,704,114 km

• M1: 157,975 km (0.108 R)
• M2: 614,997 km (0.049 R)
• M3: 1,282,353 km (0.12 R)
• M4: 1,755,082 km (0.066 R)
• M5: 2,245,614 km (0.116 R)
• M6: 2,675,109 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.9

Radius: 10.4

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.65 AU - 0.75 AU

Year: 391 Days

Day: 13.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,704,114 km

• M1: 129,402 km (0.093 R)
• M2: 519,853 km (0.093 R)
• M3: 948,151 km (0.097 R)
• M4: 1,278,613 km (0.119 R)
• M5: 1,744,910 km (0.113 R)
• M6: 2,100,354 km (0.105 R)
• M7: 2,608,837 km (0.112 R)
• M8: 3,448,231 km (0.036 R)
• M9: 3,899,119 km (0.083 R)
• M10: 4,458,316 km (0.077 R)
• M11: 4,845,625 km (0.11 R)
• M12: 5,224,107 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.2

Radius: 14

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.76 AU - 1.24 AU

Year: 667 Days

Day: 8.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,704,114 km

• M1: 174,581 km (0.089 R)
• M2: 738,864 km (0.111 R)
• M3: 1,472,193 km (0.065 R)
• M4: 1,954,646 km (0.119 R)
• M5: 2,481,081 km (0.09 R)
• M6: 2,969,967 km (0.119 R)
• M7: 3,457,207 km (0.095 R)
• M8: 4,130,696 km (0.07 R)
• M9: 5,593,315 km (0.11 R)
• M10: 6,066,194 km (0.089 R)
• M11: 6,504,366 km (0.114 R)
• M12: 6,985,323 km (0.106 R)
• M13: 7,762,783 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.7

Radius: 13.2

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.3 AU - 1.66 AU

Year: 1201 Days

Day: 8.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,704,114 km

• M1: 164,109 km (0.098 R)
• M2: 919,129 km (0.094 R)
• M3: 1,329,626 km (0.099 R)
• M4: 1,867,430 km (0.105 R)
• M5: 2,416,903 km (0.083 R)
• M6: 2,936,008 km (0.041 R)
• M7: 4,080,731 km (0.106 R)
• M8: 4,977,271 km (0.108 R)
• M9: 5,803,051 km (0.065 R)
• M10: 6,814,931 km (0.064 R)
• M11: 8,049,413 km (0.086 R)
• M12: 8,548,920 km (0.06 R)
• M13: 9,277,312 km (0.092 R)
• M14: 10,301,609 km (0.077 R)
• M15: 11,434,364 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.9

Radius: 11.2

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.23 AU - 3.67 AU

Year: 4273 Days

Day: 5.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,704,114 km

• M1: 140,323 km (0.105 R)
• M2: 651,798 km (0.08 R)
• M3: 2,410,022 km (0.119 R)
• M4: 2,895,018 km (0.051 R)
• M5: 3,272,753 km (0.061 R)
• M6: 6,489,406 km (0.094 R)
• M7: 8,907,805 km (0.106 R)
• M8: 9,324,136 km (0.093 R)
• M9: 10,651,668 km (0.05 R)
• M10: 12,147,048 km (0.092 R)
• M11: 13,728,148 km (0.1 R)
• M12: 15,768,513 km (0.039 R)
• M13: 18,425,970 km (0.072 R)
• M14: 19,290,795 km (0.098 R)
• M15: 20,182,398 km (0.095 R)
• M16: 21,910,852 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.1

Radius: 3.2

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.63 AU - 7.29 AU

Year: 12245 Days

Day: 18.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 164.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,704,114 km

• M1: 39,943 km (0.118 R)
• M2: 173,234 km (0.105 R)
• M3: 276,457 km (0.112 R)
• M4: 422,614 km (0.098 R)
• M5: 2,030,342 km (0.069 R)
• M6: 2,145,981 km (0.115 R)
• M7: 2,358,859 km (0.084 R)
• M8: 2,602,554 km (0.105 R)
• M9: 3,354,283 km (0.055 R)
• M10: 3,812,203 km (0.083 R)
• M11: 3,988,728 km (0.094 R)
• M12: 5,271,380 km (0.058 R)
• M13: 7,535,843 km (0.106 R)
• M14: 7,813,946 km (0.054 R)
• M15: 8,171,036 km (0.078 R)
• M16: 8,427,446 km (0.113 R)
• M17: 10,247,305 km (0.081 R)
• M18: 12,747,384 km (0.095 R)
• M19: 13,042,541 km (0.032 R)
• M20: 13,697,630 km (0.107 R)
• M21: 14,586,840 km (0.119 R)
• M22: 15,458,397 km (0.071 R)
• M23: 20,274,401 km (0.066 R)
• M24: 21,914,293 km (0.071 R)
• M25: 23,640,503 km (0.055 R)
• M26: 25,844,528 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.5

Radius: 7.3

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.73 AU - 8.45 AU

Year: 13944 Days

Day: 23.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,704,114 km

• M1: 99,034 km (0.108 R)
• M2: 369,956 km (0.071 R)
• M3: 896,540 km (0.099 R)
• M4: 1,127,968 km (0.062 R)
• M5: 1,425,668 km (0.115 R)
• M6: 2,979,990 km (0.07 R)
• M7: 3,753,560 km (0.057 R)
• M8: 4,012,514 km (0.118 R)
• M9: 6,990,409 km (0.112 R)
• M10: 7,383,852 km (0.116 R)
• M11: 9,720,570 km (0.074 R)
• M12: 10,161,136 km (0.072 R)
• M13: 11,617,471 km (0.096 R)
• M14: 13,506,444 km (0.083 R)
• M15: 15,790,953 km (0.098 R)
• M16: 17,592,710 km (0.091 R)
• M17: 19,373,822 km (0.041 R)
• M18: 19,681,993 km (0.119 R)
• M19: 20,705,991 km (0.08 R)
• M20: 21,028,075 km (0.078 R)
• M21: 25,525,436 km (0.108 R)
• M22: 26,458,179 km (0.08 R)
• M23: 27,124,488 km (0.107 R)
• M24: 33,191,728 km (0.08 R)
• M25: 37,902,865 km (0.071 R)
• M26: 38,385,018 km (0.049 R)
• M27: 42,520,502 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 277.7

Radius: 7.2

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 8.48 AU - 10.96 AU

Year: 20208 Days

Day: 24.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,704,114 km

• M1: 262,095 km (0.096 R)
• M2: 542,442 km (0.088 R)
• M3: 891,903 km (0.058 R)
• M4: 2,217,938 km (0.045 R)
• M5: 2,455,051 km (0.103 R)
• M6: 3,767,473 km (0.063 R)
• M7: 6,080,705 km (0.063 R)
• M8: 8,004,234 km (0.11 R)
• M9: 8,565,974 km (0.085 R)
• M10: 10,192,552 km (0.117 R)
• M11: 11,599,071 km (0.105 R)
• M12: 12,015,103 km (0.099 R)
• M13: 12,318,337 km (0.112 R)
• M14: 12,564,426 km (0.062 R)
• M15: 14,722,974 km (0.072 R)
• M16: 19,095,121 km (0.09 R)
• M17: 19,508,310 km (0.105 R)
• M18: 20,870,549 km (0.094 R)
• M19: 21,220,757 km (0.035 R)
• M20: 31,648,926 km (0.079 R)
• M21: 41,914,331 km (0.114 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 14,396 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit