🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.6

Radius: 12.9

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.58 AU - 0.64 AU

Year: 329 Days

Day: 7.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,856,111 km

• M1: 160,967 km (0.111 R)
• M2: 574,007 km (0.119 R)
• M3: 1,004,251 km (0.105 R)
• M4: 1,553,125 km (0.074 R)
• M5: 2,146,580 km (0.115 R)
• M6: 2,878,113 km (0.066 R)
• M7: 3,297,436 km (0.082 R)
• M8: 4,650,250 km (0.1 R)
• M9: 5,124,026 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.1

Radius: 14.7

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.67 AU - 0.87 AU

Year: 466 Days

Day: 5.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,856,111 km

• M1: 192,383 km (0.088 R)
• M2: 886,966 km (0.053 R)
• M3: 1,654,253 km (0.106 R)
• M4: 2,261,920 km (0.036 R)
• M5: 2,829,793 km (0.047 R)
• M6: 3,296,539 km (0.104 R)
• M7: 4,186,347 km (0.101 R)
• M8: 4,844,129 km (0.114 R)
• M9: 5,727,504 km (0.089 R)
• M10: 6,368,082 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.2

Radius: 11.8

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.51 AU - 2.45 AU

Year: 1923 Days

Day: 14.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,856,111 km

• M1: 146,756 km (0.072 R)
• M2: 532,269 km (0.078 R)
• M3: 1,140,235 km (0.11 R)
• M4: 1,556,566 km (0.077 R)
• M5: 2,636,214 km (0.095 R)
• M6: 3,054,489 km (0.068 R)
• M7: 3,517,196 km (0.114 R)
• M8: 4,774,865 km (0.029 R)
• M9: 5,171,449 km (0.082 R)
• M10: 7,942,301 km (0.105 R)
• M11: 8,628,805 km (0.054 R)
• M12: 9,388,463 km (0.104 R)
• M13: 10,372,817 km (0.107 R)
• M14: 14,455,343 km (0.066 R)
• M15: 15,670,527 km (0.059 R)
• M16: 16,600,726 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.8

Radius: 8.2

Gravity: 12.34 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.62 AU - 3.82 AU

Year: 4953 Days

Day: 8.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,856,111 km

• M1: 105,018 km (0.052 R)
• M2: 368,759 km (0.116 R)
• M3: 643,121 km (0.047 R)
• M4: 1,445,714 km (0.111 R)
• M5: 1,851,423 km (0.03 R)
• M6: 3,185,088 km (0.061 R)
• M7: 3,627,898 km (0.08 R)
• M8: 3,899,119 km (0.083 R)
• M9: 4,159,569 km (0.103 R)
• M10: 4,507,833 km (0.11 R)
• M11: 4,795,061 km (0.098 R)
• M12: 5,944,571 km (0.089 R)
• M13: 7,127,291 km (0.076 R)
• M14: 7,774,302 km (0.116 R)
• M15: 9,907,418 km (0.096 R)
• M16: 10,171,309 km (0.097 R)
• M17: 11,226,423 km (0.087 R)
• M18: 16,061,426 km (0.111 R)
• M19: 18,663,681 km (0.077 R)
• M20: 20,381,364 km (0.104 R)
• M21: 24,928,840 km (0.085 R)
• M22: 27,871,430 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.6

Radius: 11.9

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 4.27 AU - 4.27 AU

Year: 6091 Days

Day: 6.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,856,111 km

• M1: 147,952 km (0.103 R)
• M2: 758,312 km (0.061 R)
• M3: 1,319,453 km (0.085 R)
• M4: 1,779,018 km (0.114 R)
• M5: 3,220,244 km (0.103 R)
• M6: 3,626,701 km (0.048 R)
• M7: 4,470,134 km (0.097 R)
• M8: 7,651,931 km (0.069 R)
• M9: 8,494,466 km (0.105 R)
• M10: 8,997,414 km (0.078 R)
• M11: 10,626,685 km (0.06 R)
• M12: 11,211,313 km (0.101 R)
• M13: 12,104,113 km (0.074 R)
• M14: 12,692,033 km (0.11 R)
• M15: 13,145,314 km (0.119 R)
• M16: 14,191,602 km (0.094 R)
• M17: 14,735,241 km (0.084 R)
• M18: 24,338,227 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.9

Radius: 11.3

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.01 AU - 5.89 AU

Year: 8782 Days

Day: 10.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,856,111 km

• M1: 141,520 km (0.117 R)
• M2: 503,397 km (0.089 R)
• M3: 925,263 km (0.089 R)
• M4: 1,612,815 km (0.052 R)
• M5: 2,014,635 km (0.114 R)
• M6: 3,006,618 km (0.086 R)
• M7: 3,751,915 km (0.106 R)
• M8: 4,641,424 km (0.075 R)
• M9: 6,293,882 km (0.031 R)
• M10: 8,572,856 km (0.111 R)
• M11: 9,079,394 km (0.112 R)
• M12: 9,482,560 km (0.096 R)
• M13: 10,195,544 km (0.069 R)
• M14: 11,125,145 km (0.09 R)
• M15: 13,565,385 km (0.092 R)
• M16: 15,021,870 km (0.063 R)
• M17: 17,739,316 km (0.11 R)
• M18: 19,148,378 km (0.105 R)
• M19: 21,970,990 km (0.042 R)
• M20: 23,822,264 km (0.119 R)
• M21: 25,297,150 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.5

Radius: 3.7

Gravity: 53.51 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.8 AU - 6.68 AU

Year: 9492 Days

Day: 16.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,856,111 km

• M1: 46,525 km (0.096 R)
• M2: 222,153 km (0.08 R)
• M3: 360,232 km (0.111 R)
• M4: 509,530 km (0.102 R)
• M5: 1,247,945 km (0.066 R)
• M6: 1,856,210 km (0.048 R)
• M7: 2,179,940 km (0.115 R)
• M8: 2,703,234 km (0.111 R)
• M9: 3,050,450 km (0.114 R)
• M10: 3,676,816 km (0.034 R)
• M11: 4,770,826 km (0.105 R)
• M12: 5,887,574 km (0.033 R)
• M13: 6,137,253 km (0.109 R)
• M14: 6,890,029 km (0.093 R)
• M15: 8,088,009 km (0.1 R)
• M16: 11,985,482 km (0.111 R)
• M17: 12,156,323 km (0.06 R)
• M18: 14,592,076 km (0.104 R)
• M19: 16,061,276 km (0.076 R)
• M20: 28,079,371 km (0.108 R)
• M21: 32,277,835 km (0.097 R)
• M22: 34,756,073 km (0.04 R)
• M23: 37,844,970 km (0.075 R)
• M24: 39,455,840 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.6

Radius: 6.4

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 5.54 AU - 9.24 AU

Year: 13867 Days

Day: 20 Hours

Environment

Temp: -239 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 40,856,111 km

• M1: 81,232 km (0.094 R)
• M2: 309,518 km (0.062 R)
• M3: 664,663 km (0.118 R)
• M4: 882,179 km (0.09 R)
• M5: 1,115,851 km (0.104 R)
• M6: 1,390,811 km (0.103 R)
• M7: 1,783,356 km (0.104 R)
• M8: 2,013,887 km (0.111 R)
• M9: 2,573,532 km (0.111 R)
• M10: 3,143,949 km (0.093 R)
• M11: 4,022,836 km (0.103 R)
• M12: 4,367,360 km (0.068 R)
• M13: 4,935,832 km (0.086 R)
• M14: 8,411,739 km (0.094 R)
• M15: 8,887,310 km (0.059 R)
• M16: 9,109,314 km (0.114 R)
• M17: 9,564,540 km (0.089 R)
• M18: 10,130,618 km (0.026 R)
• M19: 10,619,354 km (0.095 R)
• M20: 18,263,656 km (0.092 R)
• M21: 18,840,805 km (0.103 R)
• M22: 21,749,885 km (0.108 R)
• M23: 22,562,500 km (0.071 R)
• M24: 26,838,606 km (0.109 R)
• M25: 32,247,766 km (0.063 R)
• M26: 34,164,563 km (0.081 R)
• M27: 35,483,867 km (0.091 R)
• M28: 38,340,737 km (0.106 R)
• M29: 39,167,415 km (0.028 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: 420 - 19,893 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit