🌌 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 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.54 AU - 0.68 AU

Year: 303 Days

Day: 29.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.5

Radius: 13.6

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.65 AU - 0.73 AU

Year: 364 Days

Day: 12.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 77,878,800 km

• M1: 169,494 km (0.108 R)
• M2: 596,447 km (0.077 R)
• M3: 1,036,264 km (0.119 R)
• M4: 1,852,171 km (0.071 R)
• M5: 2,748,412 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.3

Radius: 12.7

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.03 AU - 2.71 AU

Year: 2320 Days

Day: 14.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,878,800 km

• M1: 157,975 km (0.058 R)
• M2: 637,137 km (0.087 R)
• M3: 1,086,081 km (0.117 R)
• M4: 2,272,990 km (0.104 R)
• M5: 2,926,882 km (0.12 R)
• M6: 3,778,543 km (0.075 R)
• M7: 4,591,009 km (0.034 R)
• M8: 5,155,741 km (0.104 R)
• M9: 5,741,267 km (0.056 R)
• M10: 6,480,131 km (0.085 R)
• M11: 7,522,230 km (0.109 R)
• M12: 8,506,434 km (0.108 R)
• M13: 9,791,480 km (0.092 R)
• M14: 10,886,087 km (0.082 R)
• M15: 12,060,580 km (0.08 R)
• M16: 12,787,327 km (0.045 R)
• M17: 13,228,341 km (0.106 R)
• M18: 14,756,484 km (0.061 R)
• M19: 15,241,929 km (0.108 R)
• M20: 16,193,820 km (0.109 R)
• M21: 17,025,734 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.1

Radius: 8.9

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.24 AU - 6.44 AU

Year: 8973 Days

Day: 12.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,878,800 km

• M1: 110,702 km (0.12 R)
• M2: 691,142 km (0.093 R)
• M3: 1,194,539 km (0.094 R)
• M4: 2,340,459 km (0.084 R)
• M5: 3,210,670 km (0.118 R)
• M6: 3,943,400 km (0.079 R)
• M7: 4,363,171 km (0.116 R)
• M8: 5,543,947 km (0.037 R)
• M9: 7,074,932 km (0.083 R)
• M10: 10,647,628 km (0.074 R)
• M11: 15,590,342 km (0.11 R)
• M12: 20,768,523 km (0.065 R)
• M13: 23,445,726 km (0.063 R)
• M14: 24,560,829 km (0.109 R)
• M15: 26,989,101 km (0.107 R)
• M16: 33,482,846 km (0.046 R)
• M17: 35,227,456 km (0.108 R)
• M18: 40,579,769 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 925.3

Radius: 6.3

Gravity: 23.31 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 7.54 AU - 12.44 AU

Year: 20076 Days

Day: 15.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 77,878,800 km

• M1: 78,389 km (0.119 R)
• M2: 732,282 km (0.106 R)
• M3: 1,302,100 km (0.101 R)
• M4: 2,090,780 km (0.116 R)
• M5: 2,492,151 km (0.12 R)
• M6: 2,943,787 km (0.112 R)
• M7: 3,537,840 km (0.096 R)
• M8: 4,999,262 km (0.105 R)
• M9: 7,704,141 km (0.1 R)
• M10: 10,735,891 km (0.079 R)
• M11: 10,992,751 km (0.115 R)
• M12: 13,051,367 km (0.113 R)
• M13: 13,791,129 km (0.102 R)
• M14: 14,094,812 km (0.06 R)
• M15: 17,031,119 km (0.052 R)
• M16: 17,557,255 km (0.057 R)
• M17: 17,913,896 km (0.105 R)
• M18: 20,646,152 km (0.025 R)
• M19: 20,844,219 km (0.029 R)
• M20: 25,987,843 km (0.096 R)
• M21: 32,182,541 km (0.109 R)
• M22: 36,191,166 km (0.093 R)
• M23: 37,060,180 km (0.035 R)
• M24: 37,795,004 km (0.111 R)
• M25: 39,293,377 km (0.112 R)
• M26: 45,684,198 km (0.026 R)
• M27: 50,189,637 km (0.098 R)
• M28: 55,554,366 km (0.042 R)
• M29: 60,881,397 km (0.093 R)
• M30: 62,729,978 km (0.112 R)
• M31: 65,039,918 km (0.116 R)
• M32: 66,971,376 km (0.099 R)
• M33: 69,605,795 km (0.09 R)
• M34: 69,828,396 km (0.117 R)
• M35: 70,723,590 km (0.077 R)
• M36: 74,613,584 km (0.111 R)
• M37: 75,784,337 km (0.093 R)
• M38: 77,922,389 km (0.081 R)
• M39: 84,071,610 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 540.1

Radius: 5

Gravity: 21.6 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 8.39 AU - 13.69 AU

Year: 23323 Days

Day: 16 Hours

Environment

Temp: -228 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 77,878,800 km

• M1: 62,233 km (0.035 R)
• M2: 324,777 km (0.065 R)
• M3: 868,416 km (0.104 R)
• M4: 1,367,773 km (0.101 R)
• M5: 1,680,582 km (0.092 R)
• M6: 2,184,279 km (0.076 R)
• M7: 2,588,193 km (0.095 R)
• M8: 3,971,973 km (0.093 R)
• M9: 5,042,495 km (0.084 R)
• M10: 6,078,161 km (0.086 R)
• M11: 6,556,276 km (0.111 R)
• M12: 6,736,243 km (0.113 R)
• M13: 7,538,237 km (0.11 R)
• M14: 8,668,149 km (0.085 R)
• M15: 9,386,369 km (0.087 R)
• M16: 9,789,236 km (0.071 R)
• M17: 10,691,161 km (0.119 R)
• M18: 13,221,909 km (0.087 R)
• M19: 16,619,725 km (0.081 R)
• M20: 18,697,939 km (0.081 R)
• M21: 19,060,414 km (0.082 R)
• M22: 21,334,152 km (0.042 R)
• M23: 26,072,814 km (0.102 R)
• M24: 26,639,042 km (0.101 R)
• M25: 26,867,778 km (0.106 R)
• M26: 27,796,032 km (0.078 R)
• M27: 28,865,657 km (0.12 R)
• M28: 34,764,002 km (0.091 R)
• M29: 35,726,664 km (0.072 R)
• M30: 39,755,036 km (0.115 R)
• M31: 40,504,970 km (0.085 R)
• M32: 49,213,361 km (0.081 R)
• M33: 52,731,305 km (0.031 R)
• M34: 56,413,207 km (0.047 R)
• M35: 56,790,493 km (0.026 R)
• M36: 58,316,691 km (0.073 R)
• M37: 64,489,398 km (0.107 R)
• M38: 64,901,989 km (0.032 R)
• M39: 70,426,339 km (0.099 R)
• M40: 73,527,054 km (0.057 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 466 - 11,430 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit