🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.3

Radius: 13.8

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.68 AU - 0.7 AU

Year: 382 Days

Day: 11.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,271,077 km

• M1: 171,589 km (0.083 R)
• M2: 715,975 km (0.06 R)
• M3: 1,159,683 km (0.113 R)
• M4: 1,746,406 km (0.069 R)
• M5: 2,239,031 km (0.066 R)
• M6: 2,935,559 km (0.106 R)
• M7: 3,700,603 km (0.095 R)
• M8: 4,229,281 km (0.105 R)
• M9: 4,968,295 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.7

Radius: 14.7

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.52 AU - 0.86 AU

Year: 382 Days

Day: 11.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,271,077 km

• M1: 182,958 km (0.086 R)
• M2: 642,074 km (0.119 R)
• M3: 1,195,437 km (0.07 R)
• M4: 1,721,124 km (0.094 R)
• M5: 2,336,120 km (0.119 R)
• M6: 3,224,283 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.9

Radius: 8

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.69 AU - 2.97 AU

Year: 3175 Days

Day: 13.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,271,077 km

• M1: 99,483 km (0.109 R)
• M2: 672,592 km (0.102 R)
• M3: 1,142,479 km (0.113 R)
• M4: 2,242,921 km (0.114 R)
• M5: 3,662,605 km (0.114 R)
• M6: 4,095,541 km (0.096 R)
• M7: 4,582,332 km (0.049 R)
• M8: 5,128,963 km (0.112 R)
• M9: 6,201,729 km (0.081 R)
• M10: 10,172,057 km (0.11 R)
• M11: 10,882,048 km (0.101 R)
• M12: 11,548,806 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.2

Radius: 8.9

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.71 AU - 3.71 AU

Year: 3835 Days

Day: 12.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,271,077 km

• M1: 110,702 km (0.116 R)
• M2: 434,881 km (0.095 R)
• M3: 753,674 km (0.077 R)
• M4: 1,083,388 km (0.067 R)
• M5: 1,529,189 km (0.05 R)
• M6: 2,358,859 km (0.095 R)
• M7: 2,762,175 km (0.102 R)
• M8: 3,178,356 km (0.063 R)
• M9: 3,725,585 km (0.087 R)
• M10: 5,007,789 km (0.047 R)
• M11: 5,773,730 km (0.086 R)
• M12: 6,482,973 km (0.108 R)
• M13: 6,968,718 km (0.095 R)
• M14: 7,892,185 km (0.081 R)
• M15: 8,668,748 km (0.05 R)
• M16: 10,665,730 km (0.119 R)
• M17: 11,152,222 km (0.107 R)
• M18: 12,825,773 km (0.075 R)
• M19: 16,170,931 km (0.103 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 100.5

Radius: 7.9

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.28 AU - 6.98 AU

Year: 10121 Days

Day: 16 Hours

Environment

Temp: -227 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,271,077 km

• M1: 98,286 km (0.072 R)
• M2: 717,322 km (0.116 R)
• M3: 1,131,708 km (0.059 R)
• M4: 1,426,266 km (0.108 R)
• M5: 2,427,076 km (0.083 R)
• M6: 3,942,203 km (0.086 R)
• M7: 4,414,633 km (0.105 R)
• M8: 5,664,224 km (0.043 R)
• M9: 7,232,010 km (0.085 R)
• M10: 7,836,385 km (0.085 R)
• M11: 8,293,556 km (0.117 R)
• M12: 9,145,815 km (0.111 R)
• M13: 11,915,022 km (0.085 R)
• M14: 14,146,573 km (0.039 R)
• M15: 15,252,401 km (0.1 R)
• M16: 17,280,349 km (0.062 R)
• M17: 21,589,815 km (0.104 R)
• M18: 21,932,394 km (0.11 R)

Asteroid Belt

Center: 7.27 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.5

Radius: 7.5

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 7.22 AU - 9.6 AU

Year: 16264 Days

Day: 20.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,271,077 km

• M1: 93,349 km (0.094 R)
• M2: 365,767 km (0.102 R)
• M3: 747,690 km (0.051 R)
• M4: 1,264,102 km (0.067 R)
• M5: 1,609,224 km (0.116 R)
• M6: 2,370,229 km (0.059 R)
• M7: 3,276,343 km (0.108 R)
• M8: 3,554,894 km (0.084 R)
• M9: 5,328,676 km (0.12 R)
• M10: 6,387,530 km (0.048 R)
• M11: 7,322,068 km (0.098 R)
• M12: 7,799,883 km (0.072 R)
• M13: 9,012,225 km (0.113 R)
• M14: 10,453,151 km (0.093 R)
• M15: 11,228,517 km (0.085 R)
• M16: 11,688,381 km (0.113 R)
• M17: 12,220,800 km (0.074 R)
• M18: 12,462,550 km (0.082 R)
• M19: 19,188,320 km (0.118 R)
• M20: 21,819,597 km (0.093 R)
• M21: 22,355,307 km (0.118 R)
• M22: 23,083,251 km (0.081 R)
• M23: 24,682,153 km (0.11 R)
• M24: 32,047,604 km (0.105 R)
• M25: 34,875,901 km (0.096 R)
• M26: 35,731,152 km (0.078 R)
• M27: 42,666,061 km (0.103 R)
• M28: 46,668,253 km (0.093 R)
• M29: 47,557,163 km (0.053 R)
• M30: 50,757,660 km (0.093 R)
• M31: 53,290,501 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 889.7

Radius: 7

Gravity: 18.16 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 8.85 AU - 10.05 AU

Year: 19372 Days

Day: 17.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 81,271,077 km

• M1: 88,412 km (0.108 R)
• M2: 339,737 km (0.032 R)
• M3: 963,410 km (0.092 R)
• M4: 1,251,985 km (0.108 R)
• M5: 1,793,978 km (0.053 R)
• M6: 2,772,348 km (0.089 R)
• M7: 3,166,538 km (0.06 R)
• M8: 4,792,517 km (0.12 R)
• M9: 8,462,153 km (0.09 R)
• M10: 8,732,925 km (0.059 R)
• M11: 10,793,038 km (0.062 R)
• M12: 13,667,860 km (0.078 R)
• M13: 14,268,047 km (0.065 R)
• M14: 15,121,802 km (0.098 R)
• M15: 16,009,067 km (0.115 R)
• M16: 17,448,048 km (0.113 R)
• M17: 19,529,254 km (0.117 R)
• M18: 19,907,437 km (0.112 R)
• M19: 21,973,085 km (0.075 R)
• M20: 22,796,322 km (0.064 R)
• M21: 27,223,222 km (0.106 R)
• M22: 27,458,540 km (0.057 R)
• M23: 27,695,203 km (0.071 R)
• M24: 31,152,709 km (0.092 R)
• M25: 31,668,972 km (0.12 R)
• M26: 32,984,835 km (0.099 R)
• M27: 33,252,166 km (0.052 R)
• M28: 37,439,859 km (0.082 R)
• M29: 38,761,407 km (0.073 R)
• M30: 39,358,751 km (0.073 R)
• M31: 41,497,552 km (0.12 R)
• M32: 46,506,986 km (0.079 R)
• M33: 48,205,221 km (0.076 R)
• M34: 64,967,662 km (0.107 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: 434 - 16,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit