🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.45 AU - 0.65 AU

Year: 268 Days

Day: 35.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.49 AU - 0.71 AU

Year: 305 Days

Day: 17.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.2

Radius: 9.5

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.71 AU - 0.91 AU

Year: 478 Days

Day: 5.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,044,684 km

• M1: 118,182 km (0.088 R)
• M2: 452,683 km (0.048 R)
• M3: 754,422 km (0.077 R)
• M4: 1,203,066 km (0.108 R)
• M5: 1,499,569 km (0.119 R)
• M6: 1,881,044 km (0.116 R)
• M7: 3,209,622 km (0.11 R)
• M8: 3,687,887 km (0.113 R)
• M9: 4,040,638 km (0.075 R)
• M10: 4,364,518 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.7

Radius: 11

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.11 AU - 1.67 AU

Year: 1075 Days

Day: 7.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,044,684 km

• M1: 136,882 km (0.051 R)
• M2: 610,060 km (0.081 R)
• M3: 959,072 km (0.067 R)
• M4: 1,477,429 km (0.086 R)
• M5: 2,481,829 km (0.097 R)
• M6: 2,948,873 km (0.12 R)
• M7: 3,878,175 km (0.085 R)
• M8: 4,394,886 km (0.066 R)
• M9: 4,833,806 km (0.045 R)
• M10: 5,264,947 km (0.027 R)
• M11: 5,663,177 km (0.071 R)
• M12: 6,183,927 km (0.083 R)
• M13: 6,780,523 km (0.074 R)
• M14: 7,206,877 km (0.073 R)
• M15: 7,989,873 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.7

Radius: 9.5

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.67 AU - 4.05 AU

Year: 4040 Days

Day: 13.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,044,684 km

• M1: 118,182 km (0.061 R)
• M2: 428,149 km (0.064 R)
• M3: 772,972 km (0.072 R)
• M4: 1,317,508 km (0.072 R)
• M5: 1,841,400 km (0.117 R)
• M6: 2,402,243 km (0.049 R)
• M7: 4,940,470 km (0.066 R)
• M8: 5,356,352 km (0.116 R)
• M9: 6,801,318 km (0.117 R)
• M10: 8,952,685 km (0.06 R)
• M11: 14,408,070 km (0.094 R)
• M12: 16,801,486 km (0.062 R)
• M13: 17,690,397 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.3

Radius: 13.7

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.23 AU - 4.01 AU

Year: 4518 Days

Day: 12 Hours

Environment

Temp: -215 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,044,684 km

• M1: 170,691 km (0.032 R)
• M2: 606,619 km (0.103 R)
• M3: 1,358,947 km (0.083 R)
• M4: 2,230,205 km (0.107 R)
• M5: 2,669,125 km (0.082 R)
• M6: 3,127,493 km (0.046 R)
• M7: 4,523,241 km (0.101 R)
• M8: 5,319,401 km (0.108 R)
• M9: 6,686,726 km (0.118 R)
• M10: 7,225,727 km (0.076 R)
• M11: 7,721,045 km (0.104 R)
• M12: 10,281,862 km (0.099 R)
• M13: 11,563,317 km (0.117 R)
• M14: 12,193,423 km (0.103 R)
• M15: 14,720,879 km (0.053 R)
• M16: 16,588,609 km (0.085 R)
• M17: 17,706,254 km (0.115 R)
• M18: 19,953,663 km (0.098 R)
• M19: 22,163,074 km (0.063 R)
• M20: 22,833,871 km (0.115 R)
• M21: 26,310,974 km (0.055 R)
• M22: 27,572,832 km (0.104 R)
• M23: 28,002,328 km (0.115 R)
• M24: 28,786,669 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40

Radius: 14.3

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.53 AU - 5.45 AU

Year: 6241 Days

Day: 10.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,044,684 km

• M1: 851,212 km (0.104 R)
• M2: 1,914,254 km (0.106 R)
• M3: 2,646,985 km (0.09 R)
• M4: 3,513,456 km (0.11 R)
• M5: 5,328,078 km (0.116 R)
• M6: 6,131,568 km (0.102 R)
• M7: 6,661,593 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 791

Radius: 4.2

Gravity: 44.84 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 5.63 AU - 9.07 AU

Year: 13072 Days

Day: 15.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 72,044,684 km

• M1: 52,210 km (0.097 R)
• M2: 187,297 km (0.064 R)
• M3: 1,157,439 km (0.112 R)
• M4: 1,442,722 km (0.085 R)
• M5: 1,657,844 km (0.107 R)
• M6: 2,002,218 km (0.102 R)
• M7: 2,694,407 km (0.05 R)
• M8: 3,144,547 km (0.077 R)
• M9: 4,439,317 km (0.067 R)
• M10: 5,099,642 km (0.089 R)
• M11: 5,309,976 km (0.09 R)
• M12: 6,368,681 km (0.099 R)
• M13: 8,161,761 km (0.11 R)
• M14: 9,829,627 km (0.063 R)
• M15: 10,376,707 km (0.086 R)
• M16: 11,651,430 km (0.029 R)
• M17: 13,753,729 km (0.108 R)
• M18: 14,368,127 km (0.101 R)
• M19: 14,507,104 km (0.101 R)
• M20: 15,287,706 km (0.091 R)
• M21: 16,095,833 km (0.115 R)
• M22: 17,321,638 km (0.114 R)
• M23: 18,362,241 km (0.108 R)
• M24: 19,871,085 km (0.109 R)
• M25: 25,698,820 km (0.107 R)
• M26: 27,050,137 km (0.081 R)
• M27: 29,109,502 km (0.119 R)
• M28: 31,038,417 km (0.039 R)
• M29: 31,739,133 km (0.103 R)
• M30: 32,689,678 km (0.091 R)
• M31: 36,941,698 km (0.116 R)
• M32: 37,860,528 km (0.05 R)
• M33: 38,259,057 km (0.117 R)
• M34: 38,660,279 km (0.087 R)
• M35: 39,335,115 km (0.084 R)
• M36: 42,971,988 km (0.083 R)
• M37: 50,263,089 km (0.111 R)
• M38: 54,874,893 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.5

Radius: 5.1

Gravity: 16.82 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 9.45 AU - 12.01 AU

Year: 23057 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,044,684 km

• M1: 63,579 km (0.114 R)
• M2: 336,745 km (0.073 R)
• M3: 504,594 km (0.079 R)
• M4: 674,537 km (0.054 R)
• M5: 872,455 km (0.06 R)
• M6: 1,058,555 km (0.098 R)
• M7: 1,677,591 km (0.045 R)
• M8: 2,334,774 km (0.09 R)
• M9: 2,917,607 km (0.066 R)
• M10: 3,123,304 km (0.119 R)
• M11: 3,621,465 km (0.117 R)
• M12: 3,828,958 km (0.111 R)
• M13: 6,710,512 km (0.036 R)
• M14: 7,489,169 km (0.102 R)
• M15: 8,326,318 km (0.093 R)
• M16: 8,793,812 km (0.069 R)
• M17: 9,611,813 km (0.118 R)
• M18: 12,569,512 km (0.053 R)
• M19: 13,046,131 km (0.073 R)
• M20: 16,888,702 km (0.117 R)
• M21: 18,494,037 km (0.104 R)
• M22: 23,098,360 km (0.107 R)
• M23: 23,812,839 km (0.103 R)
• M24: 24,965,192 km (0.082 R)
• M25: 26,930,309 km (0.084 R)
• M26: 33,053,500 km (0.108 R)
• M27: 33,699,464 km (0.106 R)
• M28: 35,150,264 km (0.111 R)
• M29: 36,642,054 km (0.05 R)
• M30: 39,173,549 km (0.096 R)
• M31: 43,185,764 km (0.053 R)
• M32: 47,463,365 km (0.084 R)
• M33: 47,790,985 km (0.087 R)
• M34: 48,616,615 km (0.105 R)
• M35: 52,888,382 km (0.067 R)
• M36: 53,771,758 km (0.09 R)
• M37: 57,589,346 km (0.036 R)
• M38: 62,757,952 km (0.091 R)
• M39: 68,853,916 km (0.068 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 281 - 11,433 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit