🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.3

Radius: 12.5

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.63 AU - 0.85 AU

Year: 424 Days

Day: 9.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,755,517 km

• M1: 155,432 km (0.084 R)
• M2: 665,112 km (0.111 R)
• M3: 1,171,950 km (0.091 R)
• M4: 1,903,932 km (0.097 R)
• M5: 2,341,356 km (0.065 R)
• M6: 3,172,073 km (0.036 R)
• M7: 4,706,349 km (0.093 R)
• M8: 5,398,389 km (0.092 R)
• M9: 5,938,587 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.7

Radius: 15

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.03 AU - 1.23 AU

Year: 801 Days

Day: 5.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,755,517 km

• M1: 186,549 km (0.109 R)
• M2: 656,286 km (0.048 R)
• M3: 1,136,645 km (0.077 R)
• M4: 2,065,797 km (0.069 R)
• M5: 2,670,621 km (0.076 R)
• M6: 3,291,602 km (0.07 R)
• M7: 4,098,682 km (0.107 R)
• M8: 4,915,636 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.6

Radius: 8.4

Gravity: 12.38 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.39 AU - 1.91 AU

Year: 1413 Days

Day: 10 Hours

Environment

Temp: -193 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,755,517 km

• M1: 105,766 km (0.097 R)
• M2: 373,995 km (0.113 R)
• M3: 664,514 km (0.084 R)
• M4: 1,134,251 km (0.101 R)
• M5: 1,886,130 km (0.07 R)
• M6: 2,260,274 km (0.117 R)
• M7: 2,563,060 km (0.116 R)
• M8: 3,143,500 km (0.072 R)
• M9: 3,408,737 km (0.066 R)
• M10: 3,931,432 km (0.104 R)
• M11: 4,258,752 km (0.103 R)
• M12: 4,703,507 km (0.091 R)
• M13: 4,989,089 km (0.051 R)
• M14: 5,595,409 km (0.085 R)
• M15: 6,372,121 km (0.077 R)
• M16: 6,646,334 km (0.077 R)
• M17: 8,109,252 km (0.082 R)
• M18: 9,579,948 km (0.096 R)
• M19: 10,934,856 km (0.096 R)
• M20: 11,437,954 km (0.113 R)
• M21: 12,221,398 km (0.059 R)
• M22: 12,960,711 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.8

Radius: 13.8

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.51 AU - 3.55 AU

Year: 3517 Days

Day: 14.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,755,517 km

• M1: 172,786 km (0.077 R)
• M2: 848,669 km (0.113 R)
• M3: 1,471,594 km (0.064 R)
• M4: 1,989,053 km (0.12 R)
• M5: 2,655,661 km (0.114 R)
• M6: 3,274,099 km (0.104 R)
• M7: 4,539,099 km (0.064 R)
• M8: 8,342,026 km (0.078 R)
• M9: 10,360,101 km (0.032 R)
• M10: 11,259,633 km (0.055 R)
• M11: 12,171,582 km (0.03 R)
• M12: 12,806,625 km (0.102 R)
• M13: 13,338,595 km (0.059 R)
• M14: 15,114,172 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.5

Radius: 8.7

Gravity: 12 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.96 AU - 4.54 AU

Year: 4843 Days

Day: 8.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,755,517 km

• M1: 110,553 km (0.086 R)
• M2: 407,953 km (0.082 R)
• M3: 796,160 km (0.077 R)
• M4: 1,091,316 km (0.098 R)
• M5: 1,472,342 km (0.119 R)
• M6: 1,856,360 km (0.107 R)
• M7: 2,322,806 km (0.117 R)
• M8: 2,865,398 km (0.069 R)
• M9: 3,577,184 km (0.117 R)
• M10: 4,057,842 km (0.116 R)
• M11: 4,633,196 km (0.083 R)
• M12: 5,204,959 km (0.111 R)
• M13: 5,552,325 km (0.108 R)
• M14: 7,029,903 km (0.106 R)
• M15: 8,010,517 km (0.116 R)
• M16: 8,997,265 km (0.064 R)
• M17: 9,287,485 km (0.061 R)
• M18: 10,695,201 km (0.111 R)
• M19: 11,115,421 km (0.119 R)
• M20: 11,546,712 km (0.08 R)
• M21: 12,290,363 km (0.096 R)
• M22: 12,596,590 km (0.093 R)
• M23: 13,492,082 km (0.08 R)
• M24: 13,872,959 km (0.083 R)
• M25: 14,827,692 km (0.109 R)
• M26: 18,482,219 km (0.117 R)
• M27: 19,986,126 km (0.098 R)
• M28: 21,717,871 km (0.079 R)
• M29: 23,080,707 km (0.092 R)
• M30: 24,822,625 km (0.107 R)
• M31: 25,230,578 km (0.058 R)
• M32: 27,771,947 km (0.102 R)
• M33: 28,834,690 km (0.093 R)
• M34: 29,558,146 km (0.041 R)
• M35: 31,041,259 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.4

Radius: 14.7

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.12 AU - 6.66 AU

Year: 8345 Days

Day: 5.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,755,517 km

• M1: 187,745 km (0.114 R)
• M2: 1,158,187 km (0.113 R)
• M3: 1,623,286 km (0.06 R)
• M4: 2,464,176 km (0.107 R)
• M5: 3,727,081 km (0.071 R)
• M6: 4,489,881 km (0.089 R)
• M7: 5,014,221 km (0.112 R)
• M8: 5,912,108 km (0.061 R)
• M9: 6,727,715 km (0.094 R)
• M10: 10,259,721 km (0.118 R)
• M11: 11,070,841 km (0.108 R)
• M12: 11,545,814 km (0.113 R)
• M13: 13,169,400 km (0.108 R)
• M14: 15,004,517 km (0.031 R)
• M15: 23,806,257 km (0.117 R)
• M16: 24,778,195 km (0.068 R)
• M17: 26,706,960 km (0.111 R)
• M18: 27,853,179 km (0.111 R)
• M19: 29,231,424 km (0.12 R)
• M20: 32,230,712 km (0.095 R)
• M21: 33,749,728 km (0.104 R)
• M22: 36,580,120 km (0.034 R)
• M23: 41,180,105 km (0.098 R)
• M24: 43,097,651 km (0.107 R)
• M25: 44,144,237 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 693.4

Radius: 3.4

Gravity: 59.98 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.83 AU - 7.87 AU

Year: 10671 Days

Day: 22.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,755,517 km

• M1: 55,501 km (0.071 R)
• M2: 201,808 km (0.077 R)
• M3: 414,685 km (0.04 R)
• M4: 1,121,086 km (0.058 R)
• M5: 1,466,957 km (0.096 R)
• M6: 2,565,155 km (0.098 R)
• M7: 2,885,593 km (0.096 R)
• M8: 3,762,536 km (0.111 R)
• M9: 4,834,854 km (0.091 R)
• M10: 6,169,566 km (0.098 R)
• M11: 8,488,183 km (0.083 R)
• M12: 8,626,561 km (0.088 R)
• M13: 11,272,648 km (0.118 R)
• M14: 13,329,469 km (0.086 R)
• M15: 18,473,991 km (0.109 R)
• M16: 20,973,173 km (0.119 R)
• M17: 24,893,983 km (0.102 R)
• M18: 29,698,169 km (0.066 R)
• M19: 34,730,492 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.1

Radius: 5.5

Gravity: 20.86 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.71 AU - 8.09 AU

Year: 12087 Days

Day: 20.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,755,517 km

• M1: 68,366 km (0.038 R)
• M2: 293,062 km (0.084 R)
• M3: 557,850 km (0.085 R)
• M4: 763,099 km (0.064 R)
• M5: 944,860 km (0.097 R)
• M6: 1,950,607 km (0.086 R)
• M7: 2,127,431 km (0.095 R)
• M8: 2,745,570 km (0.07 R)
• M9: 3,061,221 km (0.094 R)
• M10: 3,900,914 km (0.102 R)
• M11: 4,300,041 km (0.097 R)
• M12: 5,112,956 km (0.12 R)
• M13: 5,451,496 km (0.106 R)
• M14: 5,697,136 km (0.096 R)
• M15: 6,956,451 km (0.114 R)
• M16: 8,390,945 km (0.12 R)
• M17: 9,500,362 km (0.052 R)
• M18: 10,274,531 km (0.042 R)
• M19: 10,595,718 km (0.045 R)
• M20: 11,257,988 km (0.064 R)
• M21: 11,714,710 km (0.076 R)
• M22: 13,729,793 km (0.114 R)
• M23: 14,250,992 km (0.071 R)
• M24: 16,323,372 km (0.116 R)
• M25: 16,760,796 km (0.1 R)
• M26: 24,671,082 km (0.083 R)
• M27: 27,333,027 km (0.069 R)
• M28: 28,157,162 km (0.103 R)
• M29: 31,507,107 km (0.102 R)
• M30: 33,686,449 km (0.086 R)
• M31: 35,841,855 km (0.042 R)
• M32: 37,328,708 km (0.061 R)
• M33: 45,383,955 km (0.094 R)
• M34: 49,207,377 km (0.086 R)
• M35: 51,042,195 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 636.3

Radius: 4.8

Gravity: 27.62 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 7.67 AU - 11.77 AU

Year: 20208 Days

Day: 24.9 Hours

Environment

Temp: -245 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 74,755,517 km

• M1: 59,690 km (0.085 R)
• M2: 264,639 km (0.115 R)
• M3: 517,459 km (0.033 R)
• M4: 1,131,558 km (0.063 R)
• M5: 1,357,451 km (0.084 R)
• M6: 1,788,891 km (0.087 R)
• M7: 2,350,183 km (0.114 R)
• M8: 2,623,797 km (0.088 R)
• M9: 3,904,953 km (0.1 R)
• M10: 4,524,737 km (0.094 R)
• M11: 10,623,244 km (0.093 R)
• M12: 11,370,037 km (0.049 R)
• M13: 11,626,597 km (0.087 R)
• M14: 16,437,216 km (0.106 R)
• M15: 17,434,585 km (0.039 R)
• M16: 17,690,098 km (0.11 R)
• M17: 18,383,634 km (0.066 R)
• M18: 18,915,604 km (0.11 R)
• M19: 20,478,453 km (0.105 R)
• M20: 23,237,037 km (0.08 R)
• M21: 28,056,033 km (0.111 R)
• M22: 28,879,420 km (0.055 R)
• M23: 30,328,276 km (0.06 R)
• M24: 32,206,477 km (0.043 R)
• M25: 35,099,251 km (0.116 R)
• M26: 48,236,487 km (0.049 R)
• M27: 48,403,887 km (0.114 R)
• M28: 48,740,033 km (0.078 R)
• M29: 52,011,140 km (0.037 R)
• M30: 61,312,239 km (0.118 R)
• M31: 63,096,193 km (0.078 R)
• M32: 71,227,137 km (0.064 R)
• M33: 72,977,132 km (0.071 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: 540 - 18,601 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit