🌌 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 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.2

Radius: 8.1

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.54 AU - 0.56 AU

Year: 287 Days

Day: 7.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,765,183 km

• M1: 100,679 km (0.12 R)
• M2: 536,009 km (0.12 R)
• M3: 908,209 km (0.11 R)
• M4: 1,291,628 km (0.118 R)
• M5: 1,624,782 km (0.069 R)
• M6: 1,917,097 km (0.092 R)
• M7: 2,269,549 km (0.08 R)
• M8: 2,546,156 km (0.101 R)
• M9: 3,115,824 km (0.091 R)
• M10: 3,459,002 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.4

Radius: 12.1

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.54 AU - 0.66 AU

Year: 327 Days

Day: 5.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,765,183 km

• M1: 153,338 km (0.111 R)
• M2: 555,906 km (0.115 R)
• M3: 1,008,888 km (0.033 R)
• M4: 1,462,020 km (0.078 R)
• M5: 1,964,968 km (0.044 R)
• M6: 3,371,637 km (0.091 R)
• M7: 3,848,106 km (0.083 R)
• M8: 4,437,821 km (0.117 R)
• M9: 4,878,536 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337

Radius: 10.8

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.06 AU - 1.5 AU

Year: 1018 Days

Day: 5.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,765,183 km

• M1: 134,937 km (0.115 R)
• M2: 731,234 km (0.031 R)
• M3: 1,118,543 km (0.07 R)
• M4: 1,477,129 km (0.116 R)
• M5: 2,394,015 km (0.085 R)
• M6: 2,953,810 km (0.086 R)
• M7: 4,242,745 km (0.075 R)
• M8: 4,625,117 km (0.099 R)
• M9: 5,224,406 km (0.117 R)
• M10: 7,472,264 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.8

Radius: 8

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.9 AU - 5.52 AU

Year: 7185 Days

Day: 13.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,765,183 km

• M1: 100,679 km (0.107 R)
• M2: 682,316 km (0.113 R)
• M3: 935,286 km (0.094 R)
• M4: 1,766,452 km (0.089 R)
• M5: 2,427,674 km (0.089 R)
• M6: 3,098,920 km (0.095 R)
• M7: 3,778,244 km (0.1 R)
• M8: 4,594,450 km (0.054 R)
• M9: 4,934,635 km (0.114 R)
• M10: 5,883,834 km (0.088 R)
• M11: 6,651,869 km (0.026 R)
• M12: 11,599,520 km (0.066 R)
• M13: 16,029,412 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.1

Radius: 11.9

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.16 AU - 6.7 AU

Year: 8894 Days

Day: 13.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,765,183 km

• M1: 147,952 km (0.115 R)
• M2: 597,793 km (0.032 R)
• M3: 986,000 km (0.047 R)
• M4: 1,517,222 km (0.074 R)
• M5: 2,092,276 km (0.103 R)
• M6: 2,542,865 km (0.072 R)
• M7: 3,874,884 km (0.118 R)
• M8: 4,882,127 km (0.094 R)
• M9: 5,997,827 km (0.106 R)
• M10: 6,662,940 km (0.103 R)
• M11: 8,653,638 km (0.095 R)
• M12: 10,408,272 km (0.078 R)
• M13: 11,369,588 km (0.104 R)
• M14: 17,743,953 km (0.083 R)
• M15: 19,695,008 km (0.065 R)
• M16: 21,027,327 km (0.032 R)
• M17: 21,785,190 km (0.046 R)
• M18: 22,704,319 km (0.065 R)
• M19: 23,575,428 km (0.114 R)
• M20: 24,243,382 km (0.075 R)
• M21: 25,076,792 km (0.068 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 608.7

Radius: 6.5

Gravity: 14.41 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.91 AU - 6.71 AU

Year: 9844 Days

Day: 23.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,765,183 km

• M1: 80,783 km (0.116 R)
• M2: 996,920 km (0.109 R)
• M3: 1,385,127 km (0.095 R)
• M4: 2,032,586 km (0.118 R)
• M5: 2,331,034 km (0.054 R)
• M6: 3,127,343 km (0.085 R)
• M7: 3,358,023 km (0.106 R)
• M8: 4,425,554 km (0.104 R)
• M9: 5,436,387 km (0.104 R)
• M10: 7,012,550 km (0.099 R)
• M11: 10,362,645 km (0.063 R)
• M12: 11,035,237 km (0.089 R)
• M13: 12,352,745 km (0.075 R)
• M14: 12,931,539 km (0.075 R)
• M15: 18,452,449 km (0.099 R)
• M16: 24,004,923 km (0.089 R)
• M17: 27,351,727 km (0.097 R)
• M18: 31,848,639 km (0.107 R)
• M19: 43,319,953 km (0.092 R)
• M20: 44,250,153 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.4

Radius: 7.2

Gravity: 16.08 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 6.92 AU - 7.28 AU

Year: 13298 Days

Day: 21.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,765,183 km

• M1: 89,609 km (0.097 R)
• M2: 324,179 km (0.113 R)
• M3: 583,880 km (0.067 R)
• M4: 831,615 km (0.051 R)
• M5: 1,877,453 km (0.109 R)
• M6: 2,901,002 km (0.119 R)
• M7: 3,643,307 km (0.046 R)
• M8: 4,474,024 km (0.084 R)
• M9: 5,105,925 km (0.037 R)
• M10: 5,571,324 km (0.101 R)
• M11: 6,104,042 km (0.084 R)
• M12: 6,923,090 km (0.12 R)
• M13: 8,094,741 km (0.106 R)
• M14: 9,819,305 km (0.105 R)
• M15: 10,202,724 km (0.054 R)
• M16: 10,710,160 km (0.107 R)
• M17: 12,208,084 km (0.059 R)
• M18: 12,523,735 km (0.095 R)
• M19: 14,322,799 km (0.089 R)
• M20: 17,215,873 km (0.049 R)
• M21: 19,604,352 km (0.088 R)
• M22: 20,743,390 km (0.08 R)
• M23: 25,536,805 km (0.112 R)
• M24: 28,079,820 km (0.096 R)
• M25: 29,075,393 km (0.115 R)
• M26: 29,865,869 km (0.085 R)
• M27: 31,371,721 km (0.114 R)
• M28: 40,081,309 km (0.113 R)
• M29: 43,065,337 km (0.036 R)
• M30: 48,205,221 km (0.039 R)
• M31: 51,740,219 km (0.101 R)
• M32: 57,184,684 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 802

Radius: 5

Gravity: 32.08 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 8.42 AU - 10.12 AU

Year: 19839 Days

Day: 16.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,765,183 km

• M1: 62,682 km (0.117 R)
• M2: 600,336 km (0.119 R)
• M3: 1,562,251 km (0.093 R)
• M4: 2,066,994 km (0.059 R)
• M5: 2,529,700 km (0.088 R)
• M6: 5,475,432 km (0.059 R)
• M7: 5,883,235 km (0.056 R)
• M8: 6,577,669 km (0.098 R)
• M9: 7,276,740 km (0.108 R)
• M10: 8,712,430 km (0.108 R)
• M11: 9,965,462 km (0.093 R)
• M12: 11,727,725 km (0.094 R)
• M13: 11,995,356 km (0.056 R)
• M14: 15,452,862 km (0.099 R)
• M15: 20,182,099 km (0.071 R)
• M16: 25,792,618 km (0.048 R)
• M17: 35,326,789 km (0.048 R)
• M18: 37,885,362 km (0.091 R)
• M19: 38,470,289 km (0.108 R)
• M20: 42,734,128 km (0.065 R)
• M21: 46,965,803 km (0.025 R)
• M22: 50,404,908 km (0.107 R)
• M23: 53,274,046 km (0.108 R)
• M24: 62,328,606 km (0.054 R)
• M25: 65,630,381 km (0.11 R)
• M26: 67,110,951 km (0.104 R)
• M27: 68,829,980 km (0.12 R)
• M28: 73,708,516 km (0.059 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 15,018 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit