🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.5

Radius: 9.1

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.59 AU - 0.71 AU

Year: 368 Days

Day: 13.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,700,457 km

• M1: 113,246 km (0.09 R)
• M2: 440,715 km (0.075 R)
• M3: 752,028 km (0.083 R)
• M4: 1,147,266 km (0.078 R)
• M5: 1,514,678 km (0.095 R)
• M6: 1,960,330 km (0.075 R)
• M7: 2,473,601 km (0.055 R)
• M8: 3,320,474 km (0.112 R)
• M9: 4,064,275 km (0.064 R)
• M10: 4,591,607 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.7

Radius: 13.4

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.6 AU - 0.96 AU

Year: 484 Days

Day: 13.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,700,457 km

• M1: 166,802 km (0.101 R)
• M2: 631,004 km (0.115 R)
• M3: 1,534,874 km (0.085 R)
• M4: 1,967,362 km (0.107 R)
• M5: 2,482,427 km (0.04 R)
• M6: 3,009,460 km (0.113 R)
• M7: 3,523,778 km (0.058 R)
• M8: 4,165,553 km (0.089 R)
• M9: 4,776,810 km (0.055 R)
• M10: 5,200,920 km (0.098 R)
• M11: 5,946,366 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.9

Radius: 11.4

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.34 AU - 1.5 AU

Year: 1189 Days

Day: 6.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,700,457 km

• M1: 145,559 km (0.087 R)
• M2: 1,049,130 km (0.119 R)
• M3: 1,432,549 km (0.08 R)
• M4: 1,921,585 km (0.12 R)
• M5: 2,350,931 km (0.084 R)
• M6: 2,790,748 km (0.07 R)
• M7: 3,922,007 km (0.108 R)
• M8: 4,452,033 km (0.07 R)
• M9: 5,336,455 km (0.11 R)
• M10: 5,743,661 km (0.09 R)
• M11: 6,334,423 km (0.107 R)
• M12: 6,791,444 km (0.096 R)
• M13: 7,505,176 km (0.106 R)
• M14: 8,017,548 km (0.098 R)
• M15: 9,082,236 km (0.098 R)
• M16: 10,336,764 km (0.104 R)
• M17: 12,356,485 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.3

Radius: 12.8

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.46 AU - 1.56 AU

Year: 1304 Days

Day: 10 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 88,700,457 km

• M1: 160,219 km (0.073 R)
• M2: 678,127 km (0.09 R)
• M3: 1,346,381 km (0.088 R)
• M4: 1,829,432 km (0.091 R)
• M5: 2,367,835 km (0.092 R)
• M6: 2,982,533 km (0.103 R)
• M7: 3,507,920 km (0.075 R)
• M8: 4,365,715 km (0.116 R)
• M9: 5,005,395 km (0.05 R)
• M10: 5,729,150 km (0.084 R)
• M11: 6,424,630 km (0.111 R)
• M12: 6,919,051 km (0.097 R)
• M13: 9,784,150 km (0.118 R)
• M14: 11,407,735 km (0.105 R)
• M15: 13,047,777 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.2

Radius: 9.9

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.35 AU - 1.87 AU

Year: 1436 Days

Day: 14.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,700,457 km

• M1: 123,119 km (0.118 R)
• M2: 570,117 km (0.1 R)
• M3: 897,737 km (0.106 R)
• M4: 1,416,393 km (0.067 R)
• M5: 1,741,170 km (0.107 R)
• M6: 2,210,159 km (0.066 R)
• M7: 2,545,109 km (0.09 R)
• M8: 2,991,957 km (0.093 R)
• M9: 3,806,518 km (0.094 R)
• M10: 4,410,295 km (0.073 R)
• M11: 6,060,659 km (0.11 R)
• M12: 7,024,667 km (0.115 R)
• M13: 7,432,920 km (0.103 R)
• M14: 8,113,889 km (0.104 R)
• M15: 8,780,946 km (0.091 R)
• M16: 9,541,951 km (0.097 R)
• M17: 10,163,829 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.5

Radius: 14

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.84 AU - 1.94 AU

Year: 1826 Days

Day: 13.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 88,700,457 km

• M1: 176,226 km (0.101 R)
• M2: 733,179 km (0.085 R)
• M3: 1,382,733 km (0.052 R)
• M4: 2,084,048 km (0.077 R)
• M5: 5,921,682 km (0.108 R)
• M6: 6,620,304 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 479.2

Radius: 7.4

Gravity: 8.75 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 8.08 AU - 12.22 AU

Year: 22730 Days

Day: 24.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 88,700,457 km

• M1: 92,751 km (0.109 R)
• M2: 1,107,623 km (0.106 R)
• M3: 1,506,151 km (0.055 R)
• M4: 1,828,834 km (0.104 R)
• M5: 2,928,977 km (0.045 R)
• M6: 4,350,306 km (0.074 R)
• M7: 5,192,692 km (0.114 R)
• M8: 13,769,736 km (0.075 R)
• M9: 14,650,269 km (0.092 R)
• M10: 18,726,362 km (0.056 R)
• M11: 21,022,540 km (0.106 R)
• M12: 24,862,269 km (0.101 R)
• M13: 27,400,047 km (0.084 R)
• M14: 29,742,899 km (0.119 R)
• M15: 32,726,479 km (0.089 R)
• M16: 39,426,369 km (0.106 R)
• M17: 46,497,113 km (0.032 R)
• M18: 49,818,485 km (0.089 R)
• M19: 53,294,541 km (0.081 R)
• M20: 56,005,404 km (0.11 R)
• M21: 61,504,472 km (0.085 R)
• M22: 69,664,587 km (0.057 R)
• M23: 70,947,688 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 781

Radius: 7.7

Gravity: 13.17 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 10.16 AU - 10.64 AU

Year: 23575 Days

Day: 22.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 88,700,457 km

• M1: 95,892 km (0.055 R)
• M2: 438,621 km (0.109 R)
• M3: 904,618 km (0.073 R)
• M4: 1,599,800 km (0.12 R)
• M5: 1,999,376 km (0.111 R)
• M6: 2,440,540 km (0.098 R)
• M7: 2,891,577 km (0.107 R)
• M8: 3,251,061 km (0.115 R)
• M9: 5,851,970 km (0.118 R)
• M10: 6,382,892 km (0.083 R)
• M11: 7,189,674 km (0.115 R)
• M12: 11,237,942 km (0.073 R)
• M13: 11,711,569 km (0.04 R)
• M14: 14,125,480 km (0.07 R)
• M15: 15,407,384 km (0.104 R)
• M16: 16,332,647 km (0.109 R)
• M17: 23,214,298 km (0.09 R)
• M18: 25,338,439 km (0.094 R)
• M19: 29,969,091 km (0.106 R)
• M20: 30,357,148 km (0.113 R)
• M21: 34,281,998 km (0.069 R)
• M22: 35,855,169 km (0.096 R)
• M23: 40,546,708 km (0.076 R)
• M24: 44,952,963 km (0.053 R)
• M25: 45,291,503 km (0.087 R)
• M26: 47,533,527 km (0.085 R)
• M27: 48,771,000 km (0.093 R)
• M28: 58,442,203 km (0.048 R)
• M29: 64,258,868 km (0.047 R)
• M30: 67,306,924 km (0.099 R)
• M31: 67,972,336 km (0.115 R)
• M32: 69,091,178 km (0.112 R)
• M33: 77,998,535 km (0.066 R)
• M34: 78,978,550 km (0.073 R)
• M35: 80,463,758 km (0.111 R)
• M36: 81,213,243 km (0.12 R)
• M37: 82,472,857 km (0.114 R)
• M38: 84,001,448 km (0.186 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 13,242 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit