🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.43 AU - 0.65 AU

Year: 260 Days

Day: 30.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.49 AU - 0.79 AU

Year: 336 Days

Day: 38.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.1

Radius: 13.6

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.54 AU - 0.84 AU

Year: 376 Days

Day: 11 Hours

Environment

Temp: -146 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 88,527,935 km

• M1: 169,195 km (0.113 R)
• M2: 603,029 km (0.095 R)
• M3: 1,113,906 km (0.065 R)
• M4: 1,623,586 km (0.116 R)
• M5: 2,086,890 km (0.042 R)
• M6: 2,515,787 km (0.118 R)
• M7: 2,941,244 km (0.119 R)
• M8: 3,544,572 km (0.114 R)
• M9: 4,243,194 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879

Radius: 9.6

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.7 AU - 1.76 AU

Year: 1493 Days

Day: 14.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 88,527,935 km

• M1: 121,473 km (0.101 R)
• M2: 591,360 km (0.037 R)
• M3: 1,677,441 km (0.09 R)
• M4: 1,980,526 km (0.111 R)
• M5: 2,524,913 km (0.116 R)
• M6: 3,000,185 km (0.095 R)
• M7: 3,634,630 km (0.111 R)
• M8: 4,590,411 km (0.057 R)
• M9: 5,705,364 km (0.085 R)
• M10: 6,834,229 km (0.096 R)
• M11: 7,479,295 km (0.116 R)
• M12: 8,522,441 km (0.082 R)
• M13: 9,925,520 km (0.084 R)
• M14: 10,472,150 km (0.108 R)
• M15: 11,292,844 km (0.046 R)
• M16: 11,812,996 km (0.096 R)
• M17: 12,232,917 km (0.067 R)
• M18: 14,012,833 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.8

Radius: 8.9

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.97 AU - 2.47 AU

Year: 2170 Days

Day: 10.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,527,935 km

• M1: 112,647 km (0.047 R)
• M2: 466,895 km (0.119 R)
• M3: 751,580 km (0.116 R)
• M4: 1,180,178 km (0.096 R)
• M5: 1,726,808 km (0.072 R)
• M6: 2,722,232 km (0.074 R)
• M7: 4,682,563 km (0.092 R)
• M8: 5,410,805 km (0.109 R)
• M9: 6,069,784 km (0.091 R)
• M10: 6,629,729 km (0.053 R)
• M11: 7,602,115 km (0.119 R)
• M12: 9,187,852 km (0.111 R)
• M13: 9,827,683 km (0.074 R)
• M14: 10,737,986 km (0.093 R)
• M15: 11,814,342 km (0.045 R)
• M16: 12,803,932 km (0.111 R)
• M17: 13,359,239 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.2

Radius: 7.1

Gravity: 13.67 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.93 AU - 8.05 AU

Year: 14816 Days

Day: 20.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 88,527,935 km

• M1: 88,263 km (0.108 R)
• M2: 550,520 km (0.108 R)
• M3: 798,254 km (0.089 R)
• M4: 1,039,107 km (0.079 R)
• M5: 1,656,198 km (0.088 R)
• M6: 2,111,724 km (0.071 R)
• M7: 3,119,415 km (0.102 R)
• M8: 3,843,020 km (0.029 R)
• M9: 4,198,614 km (0.101 R)
• M10: 4,941,218 km (0.067 R)
• M11: 5,219,171 km (0.075 R)
• M12: 5,730,646 km (0.028 R)
• M13: 6,235,090 km (0.037 R)
• M14: 7,648,640 km (0.078 R)
• M15: 7,880,068 km (0.078 R)
• M16: 8,260,046 km (0.104 R)
• M17: 10,629,677 km (0.114 R)
• M18: 10,918,251 km (0.045 R)
• M19: 11,450,819 km (0.06 R)
• M20: 12,000,442 km (0.09 R)
• M21: 12,631,745 km (0.095 R)
• M22: 22,492,638 km (0.067 R)
• M23: 24,436,962 km (0.071 R)
• M24: 25,450,039 km (0.079 R)
• M25: 25,862,929 km (0.093 R)
• M26: 28,767,970 km (0.086 R)
• M27: 34,331,515 km (0.094 R)
• M28: 35,729,955 km (0.115 R)
• M29: 38,369,011 km (0.108 R)
• M30: 45,529,663 km (0.048 R)
• M31: 45,985,488 km (0.086 R)
• M32: 60,387,574 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.7

Radius: 3.8

Gravity: 63.55 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.09 AU - 10.51 AU

Year: 21685 Days

Day: 21.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 88,527,935 km

• M1: 47,273 km (0.119 R)
• M2: 237,262 km (0.111 R)
• M3: 644,617 km (0.065 R)
• M4: 855,101 km (0.041 R)
• M5: 1,240,017 km (0.113 R)
• M6: 1,656,796 km (0.064 R)
• M7: 2,205,222 km (0.065 R)
• M8: 2,341,955 km (0.055 R)
• M9: 3,084,558 km (0.108 R)
• M10: 4,456,820 km (0.115 R)
• M11: 4,675,981 km (0.096 R)
• M12: 4,902,322 km (0.088 R)
• M13: 5,500,265 km (0.082 R)
• M14: 6,145,481 km (0.102 R)
• M15: 6,887,636 km (0.104 R)
• M16: 7,687,685 km (0.115 R)
• M17: 9,710,697 km (0.117 R)
• M18: 11,510,359 km (0.066 R)
• M19: 12,274,206 km (0.084 R)
• M20: 14,057,263 km (0.072 R)
• M21: 15,669,330 km (0.115 R)
• M22: 15,836,879 km (0.05 R)
• M23: 19,447,125 km (0.064 R)
• M24: 22,809,786 km (0.042 R)
• M25: 24,797,642 km (0.113 R)
• M26: 25,717,071 km (0.097 R)
• M27: 28,987,729 km (0.119 R)
• M28: 33,765,287 km (0.111 R)
• M29: 34,467,798 km (0.088 R)
• M30: 35,467,411 km (0.105 R)
• M31: 35,901,694 km (0.116 R)
• M32: 40,284,463 km (0.117 R)
• M33: 41,233,661 km (0.085 R)
• M34: 43,506,202 km (0.109 R)
• M35: 51,374,302 km (0.057 R)
• M36: 52,490,153 km (0.086 R)
• M37: 53,053,987 km (0.041 R)
• M38: 55,156,137 km (0.025 R)
• M39: 55,544,343 km (0.078 R)
• M40: 63,056,250 km (0.117 R)
• M41: 78,574,187 km (0.089 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 211 - 12,317 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit