🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.57 AU - 0.73 AU

Year: 190 Days

Day: 39.1 Hours

Environment

Temp: 155 °C

Axial Tilt: 38.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.17 AU - 1.27 AU

Year: 490 Days

Day: 24 Hours

Environment

Temp: 9 °C

Axial Tilt: 9.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.41 AU - 3.35 AU

Year: 1776 Days

Day: 29.4 Hours

Environment

Temp: -95 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.6

Radius: 13.5

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 7.67 AU - 8.29 AU

Year: 8193 Days

Day: 6.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,662,782 km

• M1: 170,392 km (0.084 R)
• M2: 676,033 km (0.074 R)
• M3: 1,816,417 km (0.099 R)
• M4: 2,311,437 km (0.108 R)
• M5: 2,999,886 km (0.03 R)
• M6: 4,154,034 km (0.061 R)
• M7: 5,115,948 km (0.112 R)
• M8: 6,575,574 km (0.106 R)
• M9: 7,559,629 km (0.082 R)
• M10: 9,354,205 km (0.101 R)
• M11: 10,449,710 km (0.087 R)
• M12: 11,157,308 km (0.083 R)
• M13: 12,500,548 km (0.112 R)
• M14: 13,067,075 km (0.102 R)
• M15: 13,948,805 km (0.111 R)
• M16: 14,435,147 km (0.104 R)
• M17: 15,185,979 km (0.076 R)
• M18: 15,962,542 km (0.057 R)
• M19: 22,078,851 km (0.07 R)
• M20: 29,699,366 km (0.046 R)
• M21: 31,951,712 km (0.073 R)
• M22: 32,585,259 km (0.058 R)
• M23: 34,536,314 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.3

Radius: 13.9

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 6.39 AU - 9.99 AU

Year: 8518 Days

Day: 10 Hours

Environment

Temp: -163 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,662,782 km

• M1: 173,833 km (0.077 R)
• M2: 690,245 km (0.052 R)
• M3: 3,535,446 km (0.091 R)
• M4: 5,397,491 km (0.116 R)
• M5: 6,592,030 km (0.05 R)
• M6: 8,257,653 km (0.088 R)
• M7: 10,013,782 km (0.06 R)
• M8: 11,569,750 km (0.086 R)
• M9: 12,106,058 km (0.057 R)
• M10: 14,143,282 km (0.091 R)
• M11: 18,032,079 km (0.079 R)
• M12: 23,732,356 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.8

Radius: 12.2

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.1 AU - 10.34 AU

Year: 10175 Days

Day: 7.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,662,782 km

• M1: 151,692 km (0.112 R)
• M2: 624,870 km (0.118 R)
• M3: 1,371,513 km (0.107 R)
• M4: 2,147,627 km (0.096 R)
• M5: 2,692,462 km (0.116 R)
• M6: 3,838,831 km (0.103 R)
• M7: 6,707,221 km (0.114 R)
• M8: 7,799,883 km (0.118 R)
• M9: 8,620,129 km (0.058 R)
• M10: 12,002,536 km (0.059 R)
• M11: 14,254,284 km (0.101 R)
• M12: 17,176,678 km (0.079 R)
• M13: 17,861,238 km (0.113 R)
• M14: 19,358,114 km (0.093 R)
• M15: 20,174,769 km (0.11 R)
• M16: 21,091,654 km (0.066 R)
• M17: 24,520,886 km (0.085 R)
• M18: 26,008,936 km (0.063 R)
• M19: 27,929,174 km (0.078 R)
• M20: 32,878,620 km (0.064 R)
• M21: 34,362,780 km (0.087 R)
• M22: 36,224,376 km (0.108 R)
• M23: 37,123,460 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.1

Radius: 8.9

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 7.56 AU - 11.36 AU

Year: 10575 Days

Day: 11.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,662,782 km

• M1: 114,742 km (0.035 R)
• M2: 692,189 km (0.116 R)
• M3: 1,081,742 km (0.059 R)
• M4: 3,827,761 km (0.079 R)
• M5: 5,807,689 km (0.067 R)
• M6: 6,922,492 km (0.086 R)
• M7: 7,879,170 km (0.115 R)
• M8: 9,570,374 km (0.048 R)
• M9: 11,066,652 km (0.08 R)
• M10: 13,958,529 km (0.065 R)
• M11: 16,212,220 km (0.053 R)
• M12: 19,224,074 km (0.048 R)
• M13: 20,861,573 km (0.111 R)
• M14: 27,181,185 km (0.107 R)
• M15: 33,997,911 km (0.091 R)
• M16: 35,806,849 km (0.088 R)
• M17: 42,643,471 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.4

Radius: 14

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 10.9 AU - 12.2 AU

Year: 14266 Days

Day: 13.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,662,782 km

• M1: 175,628 km (0.079 R)
• M2: 647,160 km (0.055 R)
• M3: 1,123,929 km (0.064 R)
• M4: 1,879,697 km (0.065 R)
• M5: 3,150,980 km (0.117 R)
• M6: 3,815,194 km (0.058 R)
• M7: 4,867,616 km (0.09 R)
• M8: 8,197,664 km (0.118 R)
• M9: 10,446,120 km (0.042 R)
• M10: 13,145,614 km (0.074 R)
• M11: 13,887,320 km (0.071 R)
• M12: 15,380,755 km (0.1 R)
• M13: 17,136,586 km (0.101 R)
• M14: 18,186,314 km (0.084 R)
• M15: 21,134,738 km (0.073 R)
• M16: 26,451,148 km (0.103 R)
• M17: 27,852,730 km (0.114 R)
• M18: 28,404,896 km (0.101 R)
• M19: 30,220,715 km (0.073 R)
• M20: 33,583,076 km (0.099 R)
• M21: 36,001,775 km (0.099 R)
• M22: 36,657,163 km (0.073 R)
• M23: 38,807,932 km (0.091 R)
• M24: 44,401,097 km (0.118 R)
• M25: 50,509,477 km (0.109 R)
• M26: 54,191,081 km (0.083 R)
• M27: 57,868,944 km (0.118 R)
• M28: 60,411,211 km (0.09 R)
• M29: 60,965,620 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 353.8

Radius: 6.7

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 15.1 AU - 24.08 AU

Year: 31512 Days

Day: 22.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 82,662,782 km

• M1: 103,073 km (0.082 R)
• M2: 367,712 km (0.081 R)
• M3: 606,171 km (0.058 R)
• M4: 1,141,432 km (0.11 R)
• M5: 3,715,712 km (0.047 R)
• M6: 7,262,677 km (0.092 R)
• M7: 8,602,326 km (0.039 R)
• M8: 8,989,486 km (0.103 R)
• M9: 9,504,402 km (0.047 R)
• M10: 9,798,661 km (0.066 R)
• M11: 10,099,203 km (0.115 R)
• M12: 13,897,493 km (0.111 R)
• M13: 16,446,940 km (0.073 R)
• M14: 16,957,367 km (0.056 R)
• M15: 21,127,857 km (0.117 R)
• M16: 26,509,790 km (0.12 R)
• M17: 27,566,848 km (0.12 R)
• M18: 31,813,633 km (0.115 R)
• M19: 33,682,409 km (0.053 R)
• M20: 40,953,015 km (0.086 R)
• M21: 42,047,623 km (0.083 R)
• M22: 42,522,746 km (0.113 R)
• M23: 45,282,677 km (0.12 R)
• M24: 49,907,794 km (0.059 R)
• M25: 51,156,189 km (0.059 R)
• M26: 63,968,498 km (0.115 R)
• M27: 69,111,224 km (0.054 R)
• M28: 69,551,790 km (0.113 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 411 - 15,637 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit