🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.6

Radius: 10.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.56 AU - 0.7 AU

Year: 345 Days

Day: 8.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,391,548 km

• M1: 125,662 km (0.068 R)
• M2: 482,004 km (0.119 R)
• M3: 910,901 km (0.096 R)
• M4: 1,279,511 km (0.034 R)
• M5: 1,611,618 km (0.106 R)
• M6: 2,114,865 km (0.118 R)
• M7: 2,498,135 km (0.118 R)
• M8: 2,813,487 km (0.063 R)
• M9: 3,310,750 km (0.09 R)
• M10: 3,659,164 km (0.108 R)
• M11: 4,031,962 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115

Radius: 8

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.22 AU - 1.78 AU

Year: 1268 Days

Day: 10.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,391,548 km

• M1: 99,483 km (0.11 R)
• M2: 416,630 km (0.089 R)
• M3: 795,262 km (0.106 R)
• M4: 1,100,592 km (0.116 R)
• M5: 1,533,827 km (0.088 R)
• M6: 2,033,035 km (0.061 R)
• M7: 3,845,264 km (0.075 R)
• M8: 5,772,234 km (0.091 R)
• M9: 6,363,594 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.1

Radius: 13.8

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.29 AU - 1.77 AU

Year: 1306 Days

Day: 12.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,391,548 km

• M1: 172,935 km (0.106 R)
• M2: 735,423 km (0.088 R)
• M3: 1,349,971 km (0.095 R)
• M4: 1,877,752 km (0.097 R)
• M5: 2,322,357 km (0.12 R)
• M6: 3,239,691 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.2

Radius: 9.1

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.99 AU - 4.67 AU

Year: 6219 Days

Day: 7.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,391,548 km

• M1: 113,246 km (0.077 R)
• M2: 522,097 km (0.117 R)
• M3: 1,114,953 km (0.085 R)
• M4: 6,006,654 km (0.092 R)
• M5: 6,558,819 km (0.098 R)
• M6: 9,633,056 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.3

Radius: 11.4

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.42 AU - 5.42 AU

Year: 7533 Days

Day: 14.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,391,548 km

• M1: 146,756 km (0.059 R)
• M2: 525,837 km (0.06 R)
• M3: 1,355,357 km (0.111 R)
• M4: 1,817,614 km (0.074 R)
• M5: 2,294,682 km (0.103 R)
• M6: 3,939,062 km (0.084 R)
• M7: 4,340,732 km (0.108 R)
• M8: 5,071,667 km (0.109 R)
• M9: 5,439,977 km (0.083 R)
• M10: 5,911,210 km (0.085 R)
• M11: 8,146,202 km (0.071 R)
• M12: 9,258,163 km (0.115 R)
• M13: 10,218,432 km (0.075 R)
• M14: 11,024,765 km (0.112 R)
• M15: 13,152,645 km (0.076 R)
• M16: 15,761,632 km (0.104 R)
• M17: 16,837,839 km (0.086 R)
• M18: 17,364,423 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 163

Radius: 4.4

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 7.35 AU - 11.71 AU

Year: 20307 Days

Day: 24.7 Hours

Environment

Temp: -244 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,391,548 km

• M1: 54,902 km (0.079 R)
• M2: 257,009 km (0.081 R)
• M3: 1,570,329 km (0.088 R)
• M4: 2,183,231 km (0.117 R)
• M5: 3,554,445 km (0.084 R)
• M6: 5,025,890 km (0.116 R)
• M7: 7,058,028 km (0.095 R)
• M8: 10,026,199 km (0.078 R)
• M9: 11,448,725 km (0.098 R)
• M10: 12,703,103 km (0.1 R)
• M11: 15,414,116 km (0.088 R)
• M12: 15,889,089 km (0.102 R)
• M13: 18,411,459 km (0.11 R)
• M14: 28,153,422 km (0.082 R)
• M15: 35,436,893 km (0.04 R)
• M16: 37,587,961 km (0.073 R)
• M17: 42,676,533 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.5

Radius: 7.1

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.21 AU - 11.13 AU

Year: 20756 Days

Day: 22.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,391,548 km

• M1: 88,263 km (0.094 R)
• M2: 685,009 km (0.067 R)
• M3: 916,287 km (0.119 R)
• M4: 1,497,475 km (0.047 R)
• M5: 2,220,481 km (0.113 R)
• M6: 2,717,296 km (0.11 R)
• M7: 4,558,397 km (0.105 R)
• M8: 5,774,927 km (0.116 R)
• M9: 7,284,220 km (0.101 R)
• M10: 7,652,380 km (0.094 R)
• M11: 8,426,100 km (0.11 R)
• M12: 10,071,527 km (0.063 R)
• M13: 10,821,312 km (0.071 R)
• M14: 11,423,144 km (0.073 R)
• M15: 15,737,846 km (0.085 R)
• M16: 17,962,665 km (0.047 R)
• M17: 22,927,968 km (0.066 R)
• M18: 27,504,317 km (0.043 R)
• M19: 37,726,189 km (0.09 R)
• M20: 41,384,306 km (0.074 R)
• M21: 42,703,759 km (0.116 R)
• M22: 45,735,809 km (0.064 R)
• M23: 47,145,919 km (0.06 R)
• M24: 48,746,317 km (0.063 R)
• M25: 51,549,631 km (0.07 R)
• M26: 55,864,782 km (0.119 R)
• M27: 56,220,077 km (0.081 R)
• M28: 56,755,787 km (0.043 R)
• M29: 62,492,416 km (0.03 R)
• M30: 65,994,502 km (0.107 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 10,711 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit