🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.58 AU - 0.8 AU

Year: 207 Days

Day: 18.8 Hours

Environment

Temp: 197 °C

Axial Tilt: 0.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.18 AU - 1.9 AU

Year: 691 Days

Day: 40.2 Hours

Environment

Temp: -31 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 67,402,018 km

• M1: 768,484 km (0.089 R)
• M2: 1,183,170 km (0.076 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.57 AU - 2.13 AU

Year: 910 Days

Day: 22.2 Hours

Environment

Temp: -50 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 67,402,018 km

• M1: 249,828 km (0.08 R)
• M2: 1,082,640 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.31 AU - 2.47 AU

Year: 1336 Days

Day: 44.3 Hours

Environment

Temp: -78 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.55 AU - 3.69 AU

Year: 1993 Days

Day: 23.5 Hours

Environment

Temp: -103 °C

Axial Tilt: 49.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,402,018 km

• M1: 29,172 km (0.102 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.08 AU - 5.26 AU

Year: 3650 Days

Day: 16.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.19 AU - 5.19 AU

Year: 3673 Days

Day: 37 Hours

Environment

Temp: -131 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.77 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.1

Radius: 8.3

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.2 AU - 10.5 AU

Year: 9521 Days

Day: 14.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 163.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 67,402,018 km

• M1: 109,057 km (0.116 R)
• M2: 168,597 km (0.082 R)
• M3: 229,483 km (0.085 R)
• M4: 451,786 km (0.113 R)
• M5: 568,921 km (0.108 R)
• M6: 626,665 km (0.112 R)
• M7: 791,373 km (0.102 R)
• M8: 981,960 km (0.119 R)
• M9: 1,089,072 km (0.115 R)
• M10: 1,583,942 km (0.052 R)
• M11: 2,064,750 km (0.1 R)
• M12: 2,361,552 km (0.118 R)
• M13: 2,474,199 km (0.097 R)
• M14: 2,671,818 km (0.101 R)
• M15: 3,099,817 km (0.119 R)
• M16: 3,295,043 km (0.103 R)
• M17: 3,385,101 km (0.11 R)
• M18: 3,604,710 km (0.072 R)
• M19: 3,678,911 km (0.12 R)
• M20: 3,961,950 km (0.055 R)
• M21: 4,271,468 km (0.07 R)
• M22: 4,330,410 km (0.081 R)
• M23: 4,469,087 km (0.097 R)
• M24: 4,893,646 km (0.078 R)
• M25: 5,017,363 km (0.042 R)
• M26: 5,716,284 km (0.092 R)
• M27: 5,846,584 km (0.108 R)
• M28: 6,132,466 km (0.113 R)
• M29: 6,221,327 km (0.103 R)
• M30: 6,310,637 km (0.094 R)
• M31: 6,603,848 km (0.078 R)
• M32: 7,605,406 km (0.117 R)
• M33: 7,893,382 km (0.095 R)
• M34: 8,479,806 km (0.075 R)
• M35: 9,080,441 km (0.083 R)
• M36: 9,156,437 km (0.08 R)
• M37: 9,334,758 km (0.071 R)
• M38: 9,902,481 km (0.108 R)
• M39: 10,059,260 km (0.047 R)
• M40: 10,111,769 km (0.051 R)
• M41: 10,164,278 km (0.072 R)
• M42: 10,243,265 km (0.101 R)
• M43: 10,882,348 km (0.025 R)
• M44: 11,234,052 km (0.062 R)
• M45: 11,315,733 km (0.12 R)
• M46: 12,227,232 km (0.075 R)
• M47: 12,791,067 km (0.091 R)
• M48: 12,847,914 km (0.104 R)
• M49: 13,536,663 km (0.038 R)
• M50: 13,973,339 km (0.056 R)
• M51: 14,149,266 km (0.059 R)
• M52: 14,860,304 km (0.025 R)
• M53: 15,069,891 km (0.067 R)
• M54: 15,280,525 km (0.117 R)
• M55: 15,826,557 km (0.076 R)
• M56: 15,948,779 km (0.105 R)
• M57: 16,317,238 km (0.094 R)
• M58: 17,062,535 km (0.114 R)
• M59: 17,156,632 km (0.096 R)
• M60: 17,219,313 km (0.091 R)
• M61: 17,282,144 km (0.099 R)
• M62: 17,344,976 km (0.086 R)
• M63: 17,692,192 km (0.097 R)
• M64: 18,009,938 km (0.082 R)
• M65: 19,006,709 km (0.045 R)
• M66: 19,104,097 km (0.102 R)
• M67: 19,626,493 km (0.1 R)
• M68: 19,922,397 km (0.097 R)
• M69: 19,988,220 km (0.095 R)
• M70: 20,485,184 km (0.115 R)
• M71: 21,796,410 km (0.108 R)
• M72: 22,000,461 km (0.106 R)
• M73: 22,719,877 km (0.108 R)
• M74: 23,134,413 km (0.093 R)
• M75: 23,238,533 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 640.4

Radius: 4.3

Gravity: 34.63 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 11.86 AU - 14.44 AU

Year: 17246 Days

Day: 16 Hours

Environment

Temp: -194 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 67,402,018 km

• M1: 92,900 km (0.088 R)
• M2: 120,875 km (0.085 R)
• M3: 189,840 km (0.057 R)
• M4: 369,058 km (0.089 R)
• M5: 572,212 km (0.083 R)
• M6: 945,907 km (0.115 R)
• M7: 1,274,125 km (0.116 R)
• M8: 1,634,955 km (0.095 R)
• M9: 1,841,699 km (0.086 R)
• M10: 2,119,652 km (0.095 R)
• M11: 2,714,304 km (0.028 R)
• M12: 3,283,374 km (0.113 R)
• M13: 3,506,125 km (0.11 R)
• M14: 3,543,674 km (0.092 R)
• M15: 3,926,944 km (0.038 R)
• M16: 4,404,311 km (0.066 R)
• M17: 4,608,512 km (0.055 R)
• M18: 5,111,161 km (0.076 R)
• M19: 5,543,349 km (0.1 R)
• M20: 6,258,876 km (0.076 R)
• M21: 6,396,356 km (0.064 R)
• M22: 6,442,283 km (0.1 R)
• M23: 7,241,435 km (0.104 R)
• M24: 7,385,647 km (0.064 R)
• M25: 7,482,287 km (0.068 R)
• M26: 8,624,018 km (0.028 R)
• M27: 8,982,155 km (0.109 R)
• M28: 9,449,798 km (0.107 R)
• M29: 9,607,325 km (0.084 R)
• M30: 9,925,220 km (0.116 R)
• M31: 10,085,440 km (0.106 R)
• M32: 11,175,410 km (0.053 R)
• M33: 13,998,920 km (0.071 R)
• M34: 14,359,002 km (0.12 R)
• M35: 15,088,292 km (0.104 R)
• M36: 16,773,063 km (0.026 R)
• M37: 16,836,492 km (0.112 R)
• M38: 17,027,678 km (0.107 R)
• M39: 18,123,932 km (0.049 R)
• M40: 18,385,130 km (0.062 R)
• M41: 19,375,916 km (0.088 R)
• M42: 21,546,731 km (0.111 R)
• M43: 21,754,223 km (0.054 R)
• M44: 22,590,625 km (0.056 R)
• M45: 22,731,097 km (0.096 R)
• M46: 23,083,400 km (0.091 R)
• M47: 24,366,501 km (0.03 R)
• M48: 26,039,604 km (0.099 R)
• M49: 26,186,808 km (0.067 R)
• M50: 27,524,363 km (0.115 R)
• M51: 27,749,358 km (0.057 R)
• M52: 28,050,498 km (0.071 R)
• M53: 28,201,443 km (0.045 R)
• M54: 29,188,938 km (0.081 R)
• M55: 31,119,798 km (0.075 R)
• M56: 31,432,607 km (0.119 R)
• M57: 32,218,893 km (0.03 R)
• M58: 33,811,064 km (0.1 R)
• M59: 34,132,699 km (0.088 R)
• M60: 34,455,082 km (0.066 R)
• M61: 34,940,827 km (0.062 R)
• M62: 35,510,346 km (0.118 R)
• M63: 35,591,877 km (0.108 R)
• M64: 35,837,068 km (0.081 R)
• M65: 36,575,931 km (0.039 R)
• M66: 38,152,394 km (0.06 R)
• M67: 39,328,083 km (0.117 R)
• M68: 40,175,107 km (0.116 R)
• M69: 40,686,133 km (0.091 R)
• M70: 41,542,730 km (0.117 R)
• M71: 42,491,929 km (0.093 R)
• M72: 44,060,313 km (0.11 R)
• M73: 44,235,791 km (0.119 R)
• M74: 45,647,696 km (0.099 R)
• M75: 45,736,407 km (0.072 R)
• M76: 45,914,130 km (0.1 R)
• M77: 47,433,296 km (0.027 R)
• M78: 49,514,651 km (0.046 R)
• M79: 51,164,267 km (0.078 R)
• M80: 52,366,884 km (0.1 R)
• M81: 52,645,735 km (0.035 R)
• M82: 53,298,281 km (0.114 R)
• M83: 54,799,794 km (0.099 R)
• M84: 54,894,191 km (0.077 R)
• M85: 54,988,587 km (0.08 R)
• M86: 55,935,093 km (0.111 R)
• M87: 58,710,582 km (0.11 R)
• M88: 58,807,073 km (0.068 R)
• M89: 59,677,882 km (0.042 R)
• M90: 60,260,865 km (0.044 R)
• M91: 61,334,529 km (0.114 R)
• M92: 62,414,625 km (0.115 R)
• M93: 63,500,855 km (0.11 R)
• M94: 64,195,289 km (0.095 R)
• M95: 65,591,785 km (0.063 R)
• M96: 66,193,318 km (0.088 R)
• M97: 67,099,133 km (0.1 R)
• M98: 67,200,112 km (0.11 R)

Kuiper Belt

Range: 30.3 - 55.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 18,220 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit