🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.44 AU - 0.62 AU

Year: 245 Days

Day: 47.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.7

Radius: 8.3

Gravity: 12.65 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.66 AU - 0.88 AU

Year: 430 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,341,307 km

• M1: 103,372 km (0.094 R)
• M2: 407,953 km (0.067 R)
• M3: 741,557 km (0.106 R)
• M4: 1,416,991 km (0.051 R)
• M5: 1,824,645 km (0.065 R)
• M6: 2,309,043 km (0.112 R)
• M7: 2,833,084 km (0.071 R)
• M8: 3,312,546 km (0.1 R)
• M9: 3,752,513 km (0.111 R)
• M10: 4,433,333 km (0.096 R)
• M11: 4,749,284 km (0.105 R)
• M12: 5,048,180 km (0.105 R)
• M13: 6,020,866 km (0.119 R)
• M14: 6,315,274 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.3

Radius: 12

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.97 AU - 3.05 AU

Year: 2528 Days

Day: 9.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,341,307 km

• M1: 158,424 km (0.072 R)
• M2: 659,577 km (0.093 R)
• M3: 1,250,489 km (0.113 R)
• M4: 1,702,424 km (0.108 R)
• M5: 2,362,300 km (0.105 R)
• M6: 2,787,756 km (0.057 R)
• M7: 3,795,747 km (0.112 R)
• M8: 5,096,351 km (0.079 R)
• M9: 5,469,448 km (0.116 R)
• M10: 6,099,853 km (0.099 R)
• M11: 8,710,336 km (0.036 R)
• M12: 9,245,896 km (0.093 R)
• M13: 9,803,298 km (0.077 R)
• M14: 11,573,938 km (0.052 R)
• M15: 12,105,759 km (0.08 R)
• M16: 13,136,937 km (0.081 R)
• M17: 13,590,368 km (0.059 R)
• M18: 14,097,056 km (0.028 R)
• M19: 14,924,931 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.1

Radius: 13.5

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.37 AU - 5.09 AU

Year: 5532 Days

Day: 9.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,341,307 km

• M1: 168,746 km (0.093 R)
• M2: 694,433 km (0.117 R)
• M3: 1,208,900 km (0.096 R)
• M4: 1,731,296 km (0.114 R)
• M5: 2,438,146 km (0.096 R)
• M6: 3,373,582 km (0.117 R)
• M7: 3,960,604 km (0.117 R)
• M8: 5,253,578 km (0.068 R)
• M9: 6,605,644 km (0.083 R)
• M10: 8,217,561 km (0.114 R)
• M11: 8,658,725 km (0.098 R)
• M12: 9,243,054 km (0.08 R)
• M13: 11,301,970 km (0.072 R)
• M14: 12,675,428 km (0.11 R)
• M15: 13,102,978 km (0.116 R)
• M16: 16,497,653 km (0.111 R)
• M17: 20,149,487 km (0.116 R)
• M18: 20,659,316 km (0.083 R)
• M19: 21,629,010 km (0.083 R)
• M20: 23,021,467 km (0.102 R)
• M21: 25,473,974 km (0.098 R)
• M22: 28,186,184 km (0.055 R)
• M23: 29,658,975 km (0.054 R)
• M24: 33,058,586 km (0.119 R)
• M25: 34,281,698 km (0.049 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835.4

Radius: 6.1

Gravity: 22.45 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.7 AU - 7.06 AU

Year: 10246 Days

Day: 23.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 54,341,307 km

• M1: 75,846 km (0.053 R)
• M2: 349,610 km (0.115 R)
• M3: 592,408 km (0.111 R)
• M4: 1,579,604 km (0.12 R)
• M5: 2,065,049 km (0.057 R)
• M6: 2,342,553 km (0.073 R)
• M7: 2,541,369 km (0.096 R)
• M8: 2,860,760 km (0.101 R)
• M9: 3,502,984 km (0.069 R)
• M10: 4,353,896 km (0.118 R)
• M11: 6,303,456 km (0.111 R)
• M12: 7,857,329 km (0.109 R)
• M13: 8,582,131 km (0.083 R)
• M14: 9,008,933 km (0.097 R)
• M15: 9,301,248 km (0.098 R)
• M16: 9,700,824 km (0.038 R)
• M17: 10,588,088 km (0.047 R)
• M18: 10,913,613 km (0.061 R)
• M19: 11,190,070 km (0.052 R)
• M20: 11,414,617 km (0.112 R)
• M21: 12,643,114 km (0.065 R)
• M22: 14,283,156 km (0.055 R)
• M23: 20,796,946 km (0.085 R)
• M24: 22,443,421 km (0.105 R)
• M25: 24,268,515 km (0.077 R)
• M26: 28,942,251 km (0.028 R)
• M27: 36,223,329 km (0.058 R)
• M28: 39,370,420 km (0.076 R)
• M29: 40,811,047 km (0.11 R)
• M30: 44,215,296 km (0.111 R)
• M31: 46,780,451 km (0.114 R)
• M32: 49,593,789 km (0.109 R)
• M33: 50,658,177 km (0.078 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 890.6

Radius: 4.3

Gravity: 48.17 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 6.11 AU - 9.09 AU

Year: 13322 Days

Day: 24.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 54,341,307 km

• M1: 53,855 km (0.073 R)
• M2: 267,032 km (0.061 R)
• M3: 544,686 km (0.105 R)
• M4: 833,559 km (0.086 R)
• M5: 1,030,430 km (0.116 R)
• M6: 2,069,387 km (0.087 R)
• M7: 2,369,331 km (0.08 R)
• M8: 2,674,810 km (0.049 R)
• M9: 3,924,102 km (0.108 R)
• M10: 4,320,087 km (0.07 R)
• M11: 4,708,743 km (0.117 R)
• M12: 5,781,958 km (0.042 R)
• M13: 7,228,719 km (0.087 R)
• M14: 7,453,415 km (0.098 R)
• M15: 8,011,714 km (0.108 R)
• M16: 9,690,052 km (0.068 R)
• M17: 9,963,368 km (0.061 R)
• M18: 11,346,849 km (0.083 R)
• M19: 12,529,270 km (0.075 R)
• M20: 13,117,040 km (0.064 R)
• M21: 13,998,172 km (0.066 R)
• M22: 14,277,172 km (0.107 R)
• M23: 19,344,052 km (0.098 R)
• M24: 19,952,317 km (0.097 R)
• M25: 24,370,092 km (0.079 R)
• M26: 24,773,707 km (0.07 R)
• M27: 24,977,160 km (0.089 R)
• M28: 27,289,344 km (0.077 R)
• M29: 30,317,056 km (0.114 R)
• M30: 31,851,631 km (0.054 R)
• M31: 33,437,069 km (0.114 R)
• M32: 37,965,995 km (0.116 R)
• M33: 43,327,582 km (0.032 R)
• M34: 44,517,185 km (0.033 R)
• M35: 50,303,032 km (0.105 R)
• M36: 54,655,732 km (0.055 R)
• M37: 55,173,490 km (0.09 R)
• M38: 56,219,029 km (0.102 R)

Asteroid Belt

Center: 8.99 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.4

Radius: 7

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.82 AU - 11.92 AU

Year: 21233 Days

Day: 17.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 141.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,341,307 km

• M1: 88,861 km (0.043 R)
• M2: 527,632 km (0.105 R)
• M3: 1,215,333 km (0.096 R)
• M4: 1,881,642 km (0.061 R)
• M5: 4,708,593 km (0.099 R)
• M6: 7,454,611 km (0.11 R)
• M7: 15,970,321 km (0.092 R)
• M8: 20,085,309 km (0.108 R)
• M9: 22,161,429 km (0.116 R)
• M10: 27,865,296 km (0.06 R)
• M11: 29,673,934 km (0.111 R)
• M12: 35,201,127 km (0.113 R)
• M13: 35,690,611 km (0.104 R)
• M14: 38,205,800 km (0.064 R)
• M15: 42,748,788 km (0.045 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 16,589 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit