🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.8

Radius: 12.4

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.68 AU - 1.12 AU

Year: 560 Days

Day: 14.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,772,491 km

• M1: 154,235 km (0.112 R)
• M2: 1,143,676 km (0.1 R)
• M3: 1,564,644 km (0.11 R)
• M4: 2,441,587 km (0.043 R)
• M5: 2,860,162 km (0.069 R)
• M6: 3,525,723 km (0.076 R)
• M7: 3,993,964 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.1

Radius: 12.7

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.94 AU - 1.48 AU

Year: 873 Days

Day: 13.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,772,491 km

• M1: 157,975 km (0.103 R)
• M2: 627,713 km (0.102 R)
• M3: 1,059,003 km (0.069 R)
• M4: 1,704,668 km (0.062 R)
• M5: 2,420,494 km (0.117 R)
• M6: 3,570,602 km (0.115 R)
• M7: 4,186,945 km (0.11 R)
• M8: 4,837,247 km (0.103 R)
• M9: 5,339,447 km (0.112 R)
• M10: 5,794,674 km (0.058 R)
• M11: 6,537,277 km (0.077 R)
• M12: 7,012,699 km (0.089 R)
• M13: 8,084,269 km (0.075 R)
• M14: 9,863,137 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.4

Radius: 8.3

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.24 AU - 1.26 AU

Year: 917 Days

Day: 11.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,772,491 km

• M1: 103,372 km (0.036 R)
• M2: 615,446 km (0.108 R)
• M3: 949,647 km (0.12 R)
• M4: 1,520,662 km (0.092 R)
• M5: 2,017,028 km (0.072 R)
• M6: 3,032,050 km (0.036 R)
• M7: 3,345,158 km (0.108 R)
• M8: 3,876,829 km (0.114 R)
• M9: 4,155,679 km (0.08 R)
• M10: 4,672,091 km (0.119 R)
• M11: 5,426,513 km (0.077 R)
• M12: 6,419,843 km (0.05 R)
• M13: 6,938,499 km (0.075 R)
• M14: 7,262,827 km (0.04 R)
• M15: 7,597,328 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.4

Radius: 12.5

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.62 AU - 3.06 AU

Year: 3140 Days

Day: 7.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,772,491 km

• M1: 155,432 km (0.075 R)
• M2: 588,368 km (0.099 R)
• M3: 1,146,518 km (0.074 R)
• M4: 1,760,318 km (0.114 R)
• M5: 2,151,068 km (0.08 R)
• M6: 2,659,252 km (0.073 R)
• M7: 3,112,982 km (0.107 R)
• M8: 3,862,617 km (0.106 R)
• M9: 4,260,248 km (0.102 R)
• M10: 5,022,599 km (0.031 R)
• M11: 5,772,084 km (0.117 R)
• M12: 7,313,840 km (0.1 R)
• M13: 8,739,508 km (0.096 R)
• M14: 10,763,118 km (0.069 R)
• M15: 11,354,478 km (0.092 R)
• M16: 11,801,926 km (0.119 R)
• M17: 12,473,620 km (0.026 R)
• M18: 13,438,826 km (0.115 R)
• M19: 13,893,753 km (0.063 R)
• M20: 15,271,250 km (0.108 R)
• M21: 16,478,654 km (0.059 R)
• M22: 17,640,431 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.3

Radius: 10.5

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.26 AU - 3.44 AU

Year: 3156 Days

Day: 10 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,772,491 km

• M1: 130,599 km (0.095 R)
• M2: 525,687 km (0.043 R)
• M3: 942,467 km (0.109 R)
• M4: 1,670,260 km (0.071 R)
• M5: 2,269,250 km (0.104 R)
• M6: 3,093,534 km (0.116 R)
• M7: 3,673,376 km (0.083 R)
• M8: 4,807,627 km (0.108 R)
• M9: 6,361,649 km (0.056 R)
• M10: 7,049,949 km (0.106 R)
• M11: 8,399,621 km (0.11 R)
• M12: 9,228,393 km (0.039 R)
• M13: 10,430,412 km (0.107 R)
• M14: 11,259,484 km (0.09 R)
• M15: 12,176,818 km (0.094 R)
• M16: 13,380,632 km (0.047 R)
• M17: 16,568,862 km (0.112 R)
• M18: 22,657,046 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.8

Radius: 9.2

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.81 AU - 4.21 AU

Year: 4314 Days

Day: 6 Hours

Environment

Temp: -213 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,772,491 km

• M1: 114,742 km (0.04 R)
• M2: 450,589 km (0.078 R)
• M3: 991,535 km (0.091 R)
• M4: 1,345,034 km (0.118 R)
• M5: 1,744,910 km (0.095 R)
• M6: 2,237,984 km (0.048 R)
• M7: 2,599,861 km (0.112 R)
• M8: 3,753,859 km (0.091 R)
• M9: 4,505,439 km (0.099 R)
• M10: 5,976,585 km (0.1 R)
• M11: 10,508,502 km (0.071 R)
• M12: 10,988,861 km (0.12 R)
• M13: 11,806,414 km (0.077 R)
• M14: 12,810,814 km (0.103 R)
• M15: 15,318,972 km (0.112 R)
• M16: 16,983,547 km (0.064 R)
• M17: 19,084,799 km (0.066 R)
• M18: 20,064,665 km (0.112 R)
• M19: 21,146,557 km (0.095 R)
• M20: 24,625,156 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.3

Radius: 14.6

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.14 AU - 4.02 AU

Year: 4444 Days

Day: 6.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,772,491 km

• M1: 181,612 km (0.044 R)
• M2: 658,829 km (0.115 R)
• M3: 1,235,678 km (0.094 R)
• M4: 2,000,423 km (0.116 R)
• M5: 2,468,963 km (0.064 R)
• M6: 3,048,356 km (0.059 R)
• M7: 3,531,557 km (0.086 R)
• M8: 4,655,187 km (0.11 R)
• M9: 7,064,011 km (0.105 R)
• M10: 8,727,839 km (0.103 R)
• M11: 12,188,487 km (0.09 R)
• M12: 14,144,179 km (0.077 R)
• M13: 15,004,367 km (0.088 R)
• M14: 16,185,891 km (0.055 R)
• M15: 19,248,160 km (0.109 R)
• M16: 20,103,710 km (0.093 R)
• M17: 22,174,892 km (0.062 R)
• M18: 22,968,958 km (0.065 R)
• M19: 27,226,663 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 794.6

Radius: 7.1

Gravity: 15.76 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.87 AU - 6.29 AU

Year: 9835 Days

Day: 18.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,772,491 km

• M1: 89,460 km (0.03 R)
• M2: 350,209 km (0.069 R)
• M3: 654,640 km (0.08 R)
• M4: 1,145,022 km (0.111 R)
• M5: 1,569,431 km (0.08 R)
• M6: 2,275,234 km (0.028 R)
• M7: 2,627,238 km (0.057 R)
• M8: 3,152,476 km (0.101 R)
• M9: 3,489,969 km (0.089 R)
• M10: 4,991,183 km (0.102 R)
• M11: 6,009,646 km (0.114 R)
• M12: 6,491,500 km (0.119 R)
• M13: 8,136,778 km (0.099 R)
• M14: 9,589,822 km (0.085 R)
• M15: 10,881,450 km (0.089 R)
• M16: 13,491,933 km (0.099 R)
• M17: 13,868,919 km (0.098 R)
• M18: 15,109,086 km (0.108 R)
• M19: 16,209,378 km (0.116 R)
• M20: 17,141,971 km (0.095 R)
• M21: 17,436,081 km (0.116 R)
• M22: 18,723,370 km (0.119 R)
• M23: 21,147,604 km (0.089 R)
• M24: 21,485,994 km (0.109 R)
• M25: 23,501,676 km (0.092 R)
• M26: 25,164,606 km (0.04 R)
• M27: 26,707,409 km (0.067 R)
• M28: 28,930,134 km (0.12 R)
• M29: 31,933,760 km (0.109 R)
• M30: 34,668,409 km (0.1 R)
• M31: 35,020,862 km (0.088 R)
• M32: 38,552,269 km (0.056 R)
• M33: 40,728,918 km (0.074 R)
• M34: 40,990,265 km (0.109 R)
• M35: 42,046,875 km (0.109 R)
• M36: 42,716,475 km (0.089 R)
• M37: 48,477,190 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 666.7

Radius: 3.8

Gravity: 46.17 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.28 AU - 7.76 AU

Year: 12202 Days

Day: 23.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,772,491 km

• M1: 48,919 km (0.086 R)
• M2: 815,308 km (0.112 R)
• M3: 1,211,593 km (0.072 R)
• M4: 5,602,291 km (0.058 R)
• M5: 6,384,089 km (0.109 R)
• M6: 6,821,364 km (0.051 R)
• M7: 8,771,821 km (0.067 R)
• M8: 13,727,549 km (0.068 R)
• M9: 16,862,822 km (0.025 R)
• M10: 19,036,628 km (0.118 R)
• M11: 21,390,252 km (0.098 R)
• M12: 32,513,152 km (0.097 R)
• M13: 33,328,610 km (0.112 R)
• M14: 33,682,260 km (0.087 R)
• M15: 39,029,636 km (0.101 R)
• M16: 44,061,210 km (0.101 R)
• M17: 49,202,590 km (0.034 R)
• M18: 51,838,205 km (0.104 R)
• M19: 53,431,572 km (0.08 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 724.1

Radius: 7.6

Gravity: 12.54 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 7.19 AU - 7.61 AU

Year: 13206 Days

Day: 22 Hours

Environment

Temp: -233 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,772,491 km

• M1: 94,546 km (0.103 R)
• M2: 817,852 km (0.116 R)
• M3: 3,469,175 km (0.047 R)
• M4: 4,858,191 km (0.098 R)
• M5: 7,297,983 km (0.044 R)
• M6: 9,698,131 km (0.081 R)
• M7: 12,768,926 km (0.065 R)
• M8: 15,476,648 km (0.036 R)
• M9: 16,659,368 km (0.099 R)
• M10: 22,734,089 km (0.116 R)
• M11: 23,393,517 km (0.047 R)
• M12: 24,357,525 km (0.076 R)
• M13: 32,329,446 km (0.092 R)
• M14: 39,135,252 km (0.075 R)
• M15: 42,586,175 km (0.12 R)
• M16: 50,881,677 km (0.085 R)
• M17: 57,202,336 km (0.099 R)
• M18: 58,245,931 km (0.119 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 17,394 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit