🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.7

Radius: 11.6

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.5 AU - 0.68 AU

Year: 313 Days

Day: 8.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,096,329 km

• M1: 144,362 km (0.086 R)
• M2: 617,390 km (0.108 R)
• M3: 1,054,067 km (0.116 R)
• M4: 1,561,652 km (0.075 R)
• M5: 2,074,922 km (0.077 R)
• M6: 2,472,703 km (0.117 R)
• M7: 2,949,172 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.6

Radius: 12

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.49 AU - 0.81 AU

Year: 362 Days

Day: 8.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,096,329 km

• M1: 149,299 km (0.065 R)
• M2: 1,345,034 km (0.101 R)
• M3: 1,758,074 km (0.092 R)
• M4: 2,193,554 km (0.09 R)
• M5: 2,602,405 km (0.106 R)
• M6: 3,587,656 km (0.05 R)
• M7: 4,135,783 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.8

Radius: 14.7

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.84 AU - 0.88 AU

Year: 551 Days

Day: 9.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 89,096,329 km

• M1: 183,108 km (0.04 R)
• M2: 644,916 km (0.104 R)
• M3: 1,286,841 km (0.116 R)
• M4: 1,769,144 km (0.068 R)
• M5: 2,324,751 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.4

Radius: 11.3

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.07 AU - 1.61 AU

Year: 1071 Days

Day: 12 Hours

Environment

Temp: -180 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 89,096,329 km

• M1: 140,622 km (0.105 R)
• M2: 504,145 km (0.112 R)
• M3: 875,297 km (0.079 R)
• M4: 1,462,918 km (0.07 R)
• M5: 1,882,091 km (0.072 R)
• M6: 2,313,082 km (0.091 R)
• M7: 2,669,873 km (0.07 R)
• M8: 3,587,806 km (0.086 R)
• M9: 3,969,879 km (0.118 R)
• M10: 5,144,222 km (0.099 R)
• M11: 5,611,267 km (0.097 R)
• M12: 6,150,716 km (0.081 R)
• M13: 7,510,860 km (0.104 R)
• M14: 7,873,785 km (0.051 R)
• M15: 8,803,984 km (0.102 R)
• M16: 9,207,899 km (0.115 R)
• M17: 10,052,678 km (0.1 R)
• M18: 11,314,536 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.1

Radius: 8.5

Gravity: 10.84 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.57 AU - 2.47 AU

Year: 1982 Days

Day: 13.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,096,329 km

• M1: 105,766 km (0.031 R)
• M2: 446,400 km (0.111 R)
• M3: 1,359,994 km (0.04 R)
• M4: 2,698,297 km (0.115 R)
• M5: 3,110,888 km (0.084 R)
• M6: 5,243,405 km (0.033 R)
• M7: 5,813,822 km (0.064 R)
• M8: 7,248,166 km (0.108 R)
• M9: 7,567,109 km (0.117 R)
• M10: 8,233,119 km (0.077 R)
• M11: 10,466,316 km (0.047 R)
• M12: 12,948,145 km (0.11 R)
• M13: 13,592,313 km (0.069 R)
• M14: 15,749,514 km (0.051 R)
• M15: 17,036,056 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.9

Radius: 11.7

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.95 AU - 2.39 AU

Year: 2206 Days

Day: 10.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 89,096,329 km

• M1: 145,559 km (0.114 R)
• M2: 871,108 km (0.051 R)
• M3: 1,254,528 km (0.091 R)
• M4: 1,929,214 km (0.092 R)
• M5: 2,803,763 km (0.069 R)
• M6: 3,759,394 km (0.031 R)
• M7: 4,537,004 km (0.073 R)
• M8: 7,034,840 km (0.11 R)
• M9: 7,433,817 km (0.069 R)
• M10: 8,403,062 km (0.085 R)
• M11: 9,661,330 km (0.067 R)
• M12: 10,591,978 km (0.082 R)
• M13: 11,425,238 km (0.091 R)
• M14: 11,818,232 km (0.072 R)
• M15: 13,394,694 km (0.027 R)
• M16: 14,054,122 km (0.119 R)
• M17: 15,821,770 km (0.112 R)
• M18: 16,509,023 km (0.112 R)
• M19: 17,011,971 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.1

Radius: 13.6

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.38 AU - 2.74 AU

Year: 2827 Days

Day: 11.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 89,096,329 km

• M1: 169,345 km (0.095 R)
• M2: 881,580 km (0.11 R)
• M3: 3,621,914 km (0.058 R)
• M4: 5,138,388 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.7

Radius: 12.7

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.88 AU - 4.24 AU

Year: 4636 Days

Day: 8.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,096,329 km

• M1: 158,424 km (0.11 R)
• M2: 578,794 km (0.108 R)
• M3: 1,289,982 km (0.112 R)
• M4: 1,995,486 km (0.069 R)
• M5: 2,946,180 km (0.043 R)
• M6: 7,454,911 km (0.118 R)
• M7: 10,324,347 km (0.103 R)
• M8: 11,003,821 km (0.102 R)
• M9: 14,802,111 km (0.105 R)
• M10: 15,316,877 km (0.114 R)
• M11: 18,202,022 km (0.096 R)
• M12: 18,993,095 km (0.075 R)
• M13: 23,605,198 km (0.104 R)
• M14: 24,865,260 km (0.07 R)
• M15: 26,754,382 km (0.061 R)
• M16: 29,360,228 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 849.9

Radius: 4.6

Gravity: 40.17 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 8.72 AU - 11.84 AU

Year: 22751 Days

Day: 21.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 89,096,329 km

• M1: 57,894 km (0.105 R)
• M2: 231,129 km (0.041 R)
• M3: 435,779 km (0.051 R)
• M4: 648,806 km (0.102 R)
• M5: 893,698 km (0.077 R)
• M6: 1,198,129 km (0.118 R)
• M7: 1,790,387 km (0.092 R)
• M8: 1,949,709 km (0.104 R)
• M9: 2,206,419 km (0.098 R)
• M10: 2,813,786 km (0.046 R)
• M11: 3,257,045 km (0.091 R)
• M12: 3,745,332 km (0.097 R)
• M13: 4,074,448 km (0.117 R)
• M14: 4,281,042 km (0.06 R)
• M15: 5,755,778 km (0.098 R)
• M16: 6,421,189 km (0.043 R)
• M17: 6,844,252 km (0.081 R)
• M18: 7,335,831 km (0.108 R)
• M19: 8,170,886 km (0.119 R)
• M20: 9,009,681 km (0.035 R)
• M21: 9,183,963 km (0.114 R)
• M22: 19,676,907 km (0.067 R)
• M23: 22,004,650 km (0.054 R)
• M24: 32,466,927 km (0.118 R)
• M25: 32,877,124 km (0.043 R)
• M26: 48,971,162 km (0.091 R)
• M27: 50,968,593 km (0.062 R)
• M28: 54,931,590 km (0.069 R)
• M29: 55,513,975 km (0.091 R)
• M30: 59,095,048 km (0.105 R)
• M31: 61,357,567 km (0.07 R)
• M32: 63,677,231 km (0.082 R)
• M33: 66,493,112 km (0.107 R)
• M34: 79,326,665 km (0.079 R)
• M35: 82,838,175 km (0.215 R)
• M36: 86,451,712 km (0.054 R)
• M37: 88,563,136 km (0.082 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 18,063 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit