🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.2

Radius: 12.5

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.26 AU - 1.54 AU

Year: 1070 Days

Day: 5.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,667,825 km

• M1: 155,432 km (0.041 R)
• M2: 745,895 km (0.086 R)
• M3: 1,139,188 km (0.102 R)
• M4: 1,623,885 km (0.085 R)
• M5: 2,733,303 km (0.095 R)
• M6: 3,574,342 km (0.094 R)
• M7: 4,400,870 km (0.113 R)
• M8: 5,150,655 km (0.104 R)
• M9: 6,027,897 km (0.085 R)
• M10: 7,299,179 km (0.117 R)
• M11: 7,812,898 km (0.076 R)
• M12: 8,295,800 km (0.07 R)
• M13: 8,827,172 km (0.113 R)
• M14: 9,560,800 km (0.118 R)
• M15: 10,020,215 km (0.098 R)
• M16: 10,623,394 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.2

Radius: 10.8

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.35 AU - 1.61 AU

Year: 1163 Days

Day: 9.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,667,825 km

• M1: 141,370 km (0.098 R)
• M2: 974,331 km (0.065 R)
• M3: 1,409,511 km (0.077 R)
• M4: 1,798,466 km (0.066 R)
• M5: 2,349,285 km (0.103 R)
• M6: 2,747,066 km (0.12 R)
• M7: 3,175,813 km (0.115 R)
• M8: 3,541,580 km (0.072 R)
• M9: 4,376,336 km (0.113 R)
• M10: 5,541,404 km (0.075 R)
• M11: 6,030,739 km (0.117 R)
• M12: 7,145,243 km (0.097 R)
• M13: 8,447,044 km (0.114 R)
• M14: 8,895,239 km (0.112 R)
• M15: 11,312,142 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.4

Radius: 15

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.6 AU - 1.88 AU

Year: 1482 Days

Day: 13.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,667,825 km

• M1: 186,549 km (0.047 R)
• M2: 699,669 km (0.071 R)
• M3: 1,299,557 km (0.062 R)
• M4: 1,928,167 km (0.082 R)
• M5: 2,480,183 km (0.054 R)
• M6: 3,479,946 km (0.083 R)
• M7: 4,106,761 km (0.111 R)
• M8: 4,826,925 km (0.086 R)
• M9: 6,206,965 km (0.115 R)
• M10: 6,823,009 km (0.068 R)
• M11: 7,810,804 km (0.029 R)
• M12: 8,312,555 km (0.106 R)
• M13: 9,617,198 km (0.109 R)
• M14: 11,087,297 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.3

Radius: 8.1

Gravity: 14.96 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.96 AU - 2.98 AU

Year: 2506 Days

Day: 5.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,667,825 km

• M1: 104,868 km (0.091 R)
• M2: 426,803 km (0.108 R)
• M3: 904,469 km (0.097 R)
• M4: 1,264,700 km (0.05 R)
• M5: 1,718,880 km (0.07 R)
• M6: 2,075,072 km (0.094 R)
• M7: 2,524,763 km (0.091 R)
• M8: 4,018,648 km (0.064 R)
• M9: 4,491,676 km (0.084 R)
• M10: 5,098,146 km (0.091 R)
• M11: 6,136,205 km (0.073 R)
• M12: 6,705,276 km (0.059 R)
• M13: 7,154,817 km (0.1 R)
• M14: 8,147,399 km (0.044 R)
• M15: 10,246,557 km (0.103 R)
• M16: 11,589,497 km (0.108 R)
• M17: 12,149,441 km (0.115 R)
• M18: 13,138,134 km (0.057 R)
• M19: 14,179,335 km (0.058 R)
• M20: 15,428,328 km (0.068 R)
• M21: 16,694,674 km (0.099 R)
• M22: 18,143,230 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.4

Radius: 14.3

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.58 AU - 6.66 AU

Year: 8602 Days

Day: 9.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,667,825 km

• M1: 178,620 km (0.109 R)
• M2: 661,671 km (0.044 R)
• M3: 1,168,060 km (0.072 R)
• M4: 1,698,085 km (0.075 R)
• M5: 2,324,153 km (0.101 R)
• M6: 2,868,689 km (0.097 R)
• M7: 3,498,346 km (0.12 R)
• M8: 3,952,525 km (0.117 R)
• M9: 4,762,598 km (0.074 R)
• M10: 7,097,222 km (0.119 R)
• M11: 10,024,254 km (0.105 R)
• M12: 10,526,305 km (0.106 R)
• M13: 11,482,534 km (0.038 R)
• M14: 15,409,777 km (0.12 R)
• M15: 18,342,195 km (0.089 R)
• M16: 19,234,247 km (0.047 R)
• M17: 21,030,917 km (0.089 R)
• M18: 26,308,730 km (0.105 R)
• M19: 26,828,433 km (0.077 R)
• M20: 29,160,215 km (0.087 R)
• M21: 30,186,307 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.5

Radius: 14.6

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 5.22 AU - 6.2 AU

Year: 8810 Days

Day: 5.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 123.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,667,825 km

• M1: 181,612 km (0.116 R)
• M2: 832,662 km (0.089 R)
• M3: 3,402,155 km (0.118 R)
• M4: 7,645,498 km (0.088 R)
• M5: 11,317,229 km (0.034 R)
• M6: 13,373,002 km (0.092 R)
• M7: 14,562,904 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.8

Radius: 5.1

Gravity: 26.25 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 9.95 AU - 10.01 AU

Year: 20357 Days

Day: 24.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 61,667,825 km

• M1: 68,665 km (0.104 R)
• M2: 236,215 km (0.109 R)
• M3: 504,145 km (0.098 R)
• M4: 725,400 km (0.106 R)
• M5: 1,429,707 km (0.068 R)
• M6: 1,957,039 km (0.035 R)
• M7: 2,605,097 km (0.108 R)
• M8: 4,621,826 km (0.108 R)
• M9: 4,944,658 km (0.114 R)
• M10: 5,675,743 km (0.089 R)
• M11: 7,990,920 km (0.086 R)
• M12: 9,726,854 km (0.098 R)
• M13: 10,197,189 km (0.104 R)
• M14: 12,571,607 km (0.116 R)
• M15: 12,988,536 km (0.12 R)
• M16: 14,294,675 km (0.11 R)
• M17: 14,902,341 km (0.082 R)
• M18: 18,377,799 km (0.075 R)
• M19: 21,460,563 km (0.103 R)
• M20: 21,955,881 km (0.092 R)
• M21: 22,764,158 km (0.118 R)
• M22: 27,683,535 km (0.102 R)
• M23: 29,468,836 km (0.111 R)
• M24: 30,327,528 km (0.109 R)
• M25: 30,825,688 km (0.084 R)
• M26: 32,742,486 km (0.054 R)
• M27: 36,952,918 km (0.112 R)
• M28: 39,852,424 km (0.076 R)
• M29: 42,278,602 km (0.109 R)
• M30: 42,588,569 km (0.105 R)
• M31: 45,772,760 km (0.069 R)
• M32: 45,935,971 km (0.105 R)
• M33: 48,771,000 km (0.097 R)
• M34: 53,328,948 km (0.106 R)
• M35: 53,872,587 km (0.101 R)
• M36: 67,627,064 km (0.097 R)
• M37: 69,981,286 km (0.096 R)
• M38: 70,632,635 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 268.7

Radius: 5.5

Gravity: 8.88 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 8.71 AU - 13.13 AU

Year: 23300 Days

Day: 15.5 Hours

Environment

Temp: -242 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,667,825 km

• M1: 71,209 km (0.107 R)
• M2: 315,951 km (0.084 R)
• M3: 583,731 km (0.096 R)
• M4: 2,754,994 km (0.113 R)
• M5: 3,265,123 km (0.105 R)
• M6: 3,835,989 km (0.113 R)
• M7: 4,407,752 km (0.108 R)
• M8: 7,814,694 km (0.109 R)
• M9: 11,060,967 km (0.078 R)
• M10: 21,744,948 km (0.065 R)
• M11: 28,190,522 km (0.077 R)
• M12: 30,554,767 km (0.045 R)
• M13: 31,371,421 km (0.028 R)
• M14: 38,704,859 km (0.086 R)
• M15: 48,348,685 km (0.066 R)
• M16: 52,715,597 km (0.078 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 12,789 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit