🌌 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: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.51 AU - 0.59 AU

Year: 268 Days

Day: 26.3 Hours

Environment

Temp: -119 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.9

Radius: 13.7

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.81 AU - 1.25 AU

Year: 686 Days

Day: 15 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 89,636,598 km

• M1: 170,392 km (0.081 R)
• M2: 822,040 km (0.113 R)
• M3: 1,701,825 km (0.045 R)
• M4: 2,217,340 km (0.087 R)
• M5: 2,769,206 km (0.046 R)
• M6: 3,334,686 km (0.102 R)
• M7: 4,079,085 km (0.095 R)
• M8: 4,651,447 km (0.119 R)
• M9: 5,277,065 km (0.099 R)
• M10: 6,074,122 km (0.106 R)
• M11: 6,865,345 km (0.059 R)
• M12: 7,319,225 km (0.092 R)
• M13: 7,839,228 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.7

Radius: 14.6

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.94 AU - 2.1 AU

Year: 1883 Days

Day: 10.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,636,598 km

• M1: 181,612 km (0.113 R)
• M2: 688,150 km (0.105 R)
• M3: 1,221,167 km (0.09 R)
• M4: 1,854,864 km (0.068 R)
• M5: 2,317,121 km (0.115 R)
• M6: 3,031,302 km (0.105 R)
• M7: 4,521,596 km (0.087 R)
• M8: 5,396,893 km (0.118 R)
• M9: 6,532,939 km (0.107 R)
• M10: 7,266,118 km (0.108 R)
• M11: 8,559,093 km (0.097 R)
• M12: 10,136,303 km (0.118 R)
• M13: 10,797,376 km (0.07 R)
• M14: 11,899,763 km (0.045 R)
• M15: 12,715,221 km (0.095 R)
• M16: 14,501,270 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.1

Radius: 12.8

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.41 AU - 2.91 AU

Year: 2846 Days

Day: 14.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 89,636,598 km

• M1: 159,172 km (0.067 R)
• M2: 712,684 km (0.116 R)
• M3: 1,176,288 km (0.065 R)
• M4: 1,593,816 km (0.032 R)
• M5: 2,193,404 km (0.105 R)
• M6: 2,601,058 km (0.118 R)
• M7: 3,129,737 km (0.108 R)
• M8: 4,121,421 km (0.07 R)
• M9: 4,820,492 km (0.064 R)
• M10: 5,865,134 km (0.085 R)
• M11: 6,661,593 km (0.089 R)
• M12: 7,117,268 km (0.071 R)
• M13: 8,610,704 km (0.091 R)
• M14: 10,667,675 km (0.101 R)
• M15: 11,593,237 km (0.091 R)
• M16: 12,031,259 km (0.057 R)
• M17: 13,364,475 km (0.092 R)
• M18: 15,102,204 km (0.094 R)
• M19: 16,160,310 km (0.105 R)
• M20: 18,721,276 km (0.064 R)
• M21: 20,444,943 km (0.086 R)
• M22: 22,406,919 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.7

Radius: 12.6

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.89 AU - 3.79 AU

Year: 4004 Days

Day: 12.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,636,598 km

• M1: 160,668 km (0.09 R)
• M2: 556,654 km (0.111 R)
• M3: 1,409,661 km (0.064 R)
• M4: 1,986,660 km (0.117 R)
• M5: 2,455,948 km (0.029 R)
• M6: 4,177,072 km (0.119 R)
• M7: 5,536,617 km (0.065 R)
• M8: 5,966,861 km (0.095 R)
• M9: 8,891,499 km (0.068 R)
• M10: 9,408,060 km (0.068 R)
• M11: 15,156,807 km (0.048 R)
• M12: 16,164,648 km (0.061 R)
• M13: 17,103,973 km (0.036 R)
• M14: 19,890,234 km (0.094 R)
• M15: 20,775,703 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.6

Radius: 12.1

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 3.81 AU - 6.11 AU

Year: 7247 Days

Day: 8.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 89,636,598 km

• M1: 150,495 km (0.089 R)
• M2: 1,007,841 km (0.031 R)
• M3: 2,273,888 km (0.057 R)
• M4: 2,826,053 km (0.099 R)
• M5: 3,525,723 km (0.096 R)
• M6: 4,937,328 km (0.052 R)
• M7: 5,701,624 km (0.106 R)
• M8: 6,820,616 km (0.071 R)
• M9: 8,010,667 km (0.071 R)
• M10: 9,142,375 km (0.118 R)
• M11: 9,607,923 km (0.081 R)
• M12: 10,089,479 km (0.071 R)
• M13: 11,188,126 km (0.106 R)
• M14: 12,086,311 km (0.054 R)
• M15: 13,473,233 km (0.083 R)
• M16: 16,675,525 km (0.092 R)
• M17: 17,727,497 km (0.076 R)
• M18: 18,823,302 km (0.111 R)
• M19: 19,324,604 km (0.117 R)
• M20: 21,487,041 km (0.117 R)
• M21: 23,229,408 km (0.079 R)
• M22: 24,171,874 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 268.7

Radius: 3.3

Gravity: 24.67 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 6.75 AU - 7.33 AU

Year: 12254 Days

Day: 16.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 89,636,598 km

• M1: 41,139 km (0.068 R)
• M2: 259,852 km (0.101 R)
• M3: 381,774 km (0.116 R)
• M4: 1,882,689 km (0.119 R)
• M5: 2,243,519 km (0.086 R)
• M6: 2,590,736 km (0.052 R)
• M7: 3,277,091 km (0.106 R)
• M8: 3,846,909 km (0.076 R)
• M9: 4,648,604 km (0.083 R)
• M10: 5,271,979 km (0.081 R)
• M11: 7,280,480 km (0.05 R)
• M12: 9,017,909 km (0.081 R)
• M13: 11,424,041 km (0.113 R)
• M14: 14,285,998 km (0.051 R)
• M15: 17,042,339 km (0.077 R)
• M16: 18,580,654 km (0.039 R)
• M17: 19,830,843 km (0.112 R)
• M18: 20,824,024 km (0.084 R)
• M19: 21,849,816 km (0.072 R)
• M20: 24,258,641 km (0.102 R)
• M21: 40,179,595 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 157.9

Radius: 7.1

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 6.92 AU - 7.68 AU

Year: 12939 Days

Day: 23.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,636,598 km

• M1: 175,927 km (0.114 R)
• M2: 758,312 km (0.065 R)
• M3: 1,105,379 km (0.113 R)
• M4: 1,865,785 km (0.055 R)
• M5: 2,855,823 km (0.084 R)
• M6: 5,039,354 km (0.104 R)
• M7: 6,950,467 km (0.083 R)
• M8: 21,239,906 km (0.042 R)
• M9: 24,380,264 km (0.094 R)
• M10: 25,379,578 km (0.095 R)
• M11: 28,815,991 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 803.8

Radius: 3.5

Gravity: 65.62 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 10.51 AU - 11.29 AU

Year: 23607 Days

Day: 16 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 89,636,598 km

• M1: 43,533 km (0.115 R)
• M2: 194,477 km (0.078 R)
• M3: 417,378 km (0.103 R)
• M4: 620,083 km (0.071 R)
• M5: 793,018 km (0.106 R)
• M6: 933,940 km (0.116 R)
• M7: 1,221,167 km (0.031 R)
• M8: 1,654,852 km (0.12 R)
• M9: 1,826,590 km (0.073 R)
• M10: 2,274,187 km (0.116 R)
• M11: 2,843,856 km (0.114 R)
• M12: 3,090,842 km (0.094 R)
• M13: 4,882,426 km (0.1 R)
• M14: 7,469,122 km (0.115 R)
• M15: 8,317,043 km (0.09 R)
• M16: 9,345,379 km (0.119 R)
• M17: 10,138,696 km (0.043 R)
• M18: 11,175,559 km (0.03 R)
• M19: 11,377,516 km (0.093 R)
• M20: 11,513,651 km (0.065 R)
• M21: 19,395,663 km (0.087 R)
• M22: 24,421,553 km (0.113 R)
• M23: 25,220,256 km (0.103 R)
• M24: 26,629,468 km (0.079 R)
• M25: 26,749,146 km (0.1 R)
• M26: 28,338,923 km (0.05 R)
• M27: 29,475,717 km (0.097 R)
• M28: 29,603,773 km (0.095 R)
• M29: 39,996,936 km (0.047 R)
• M30: 45,060,524 km (0.104 R)
• M31: 47,305,091 km (0.082 R)
• M32: 54,484,292 km (0.038 R)
• M33: 56,831,184 km (0.087 R)
• M34: 59,040,894 km (0.105 R)
• M35: 64,274,426 km (0.075 R)
• M36: 67,335,946 km (0.079 R)
• M37: 72,108,268 km (0.069 R)
• M38: 78,815,339 km (0.112 R)
• M39: 81,812,682 km (0.097 R)
• M40: 88,033,560 km (0.099 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 179 - 11,522 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit