🌌 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 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.58 AU - 0.7 AU

Year: 331 Days

Day: 17.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 0.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 63,190,050 km

• M1: 117,734 km (0.076 R)
• M2: 161,566 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.1

Radius: 10.7

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.8 AU - 1.06 AU

Year: 579 Days

Day: 10.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,190,050 km

• M1: 133,142 km (0.103 R)
• M2: 469,289 km (0.082 R)
• M3: 903,272 km (0.082 R)
• M4: 1,434,195 km (0.082 R)
• M5: 1,951,355 km (0.105 R)
• M6: 2,287,501 km (0.081 R)
• M7: 3,048,954 km (0.108 R)
• M8: 3,745,332 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.9

Radius: 12

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.78 AU - 1.1 AU

Year: 588 Days

Day: 9.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,190,050 km

• M1: 149,299 km (0.073 R)
• M2: 559,197 km (0.115 R)
• M3: 1,146,069 km (0.118 R)
• M4: 1,707,211 km (0.086 R)
• M5: 2,089,433 km (0.076 R)
• M6: 2,603,601 km (0.112 R)
• M7: 3,874,884 km (0.042 R)
• M8: 4,253,516 km (0.114 R)
• M9: 4,786,234 km (0.104 R)
• M10: 5,632,061 km (0.05 R)
• M11: 6,256,183 km (0.107 R)
• M12: 7,159,604 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.1

Radius: 14.2

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.54 AU - 1.68 AU

Year: 1319 Days

Day: 11.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,190,050 km

• M1: 176,675 km (0.091 R)
• M2: 626,366 km (0.047 R)
• M3: 1,231,789 km (0.049 R)
• M4: 2,065,199 km (0.069 R)
• M5: 2,792,543 km (0.075 R)
• M6: 3,987,830 km (0.107 R)
• M7: 8,357,435 km (0.096 R)
• M8: 9,658,338 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.1

Radius: 13.4

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.64 AU - 1.74 AU

Year: 1419 Days

Day: 8.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,190,050 km

• M1: 167,550 km (0.104 R)
• M2: 625,768 km (0.063 R)
• M3: 1,075,609 km (0.078 R)
• M4: 1,680,582 km (0.083 R)
• M5: 2,152,265 km (0.069 R)
• M6: 3,213,661 km (0.107 R)
• M7: 4,215,369 km (0.12 R)
• M8: 5,870,071 km (0.094 R)
• M9: 6,599,660 km (0.053 R)
• M10: 7,143,448 km (0.084 R)
• M11: 8,900,026 km (0.099 R)
• M12: 9,358,992 km (0.074 R)
• M13: 9,924,772 km (0.037 R)
• M14: 10,864,396 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.4

Radius: 10.9

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.28 AU - 4.04 AU

Year: 4521 Days

Day: 12.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,190,050 km

• M1: 135,536 km (0.071 R)
• M2: 492,177 km (0.101 R)
• M3: 1,011,581 km (0.109 R)
• M4: 1,430,455 km (0.055 R)
• M5: 1,869,824 km (0.064 R)
• M6: 3,378,219 km (0.098 R)
• M7: 3,891,489 km (0.118 R)
• M8: 5,266,294 km (0.064 R)
• M9: 5,988,552 km (0.114 R)
• M10: 6,710,362 km (0.071 R)
• M11: 7,280,180 km (0.108 R)
• M12: 11,079,368 km (0.093 R)
• M13: 11,496,746 km (0.069 R)
• M14: 13,323,785 km (0.106 R)
• M15: 13,742,958 km (0.084 R)
• M16: 15,166,531 km (0.055 R)
• M17: 16,386,203 km (0.1 R)
• M18: 17,420,672 km (0.052 R)
• M19: 18,176,590 km (0.064 R)
• M20: 20,093,836 km (0.09 R)
• M21: 20,855,290 km (0.099 R)
• M22: 21,492,427 km (0.103 R)
• M23: 21,996,871 km (0.027 R)
• M24: 23,940,147 km (0.101 R)
• M25: 25,914,091 km (0.089 R)
• M26: 26,816,017 km (0.111 R)
• M27: 27,738,886 km (0.069 R)
• M28: 28,769,615 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201

Radius: 11.8

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.41 AU - 4.03 AU

Year: 4633 Days

Day: 10.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,190,050 km

• M1: 154,086 km (0.117 R)
• M2: 1,243,607 km (0.106 R)
• M3: 1,859,651 km (0.09 R)
• M4: 2,792,244 km (0.117 R)
• M5: 3,632,835 km (0.085 R)
• M6: 4,112,745 km (0.072 R)
• M7: 5,038,007 km (0.112 R)
• M8: 6,417,449 km (0.113 R)
• M9: 8,785,883 km (0.077 R)
• M10: 12,954,876 km (0.077 R)
• M11: 13,397,387 km (0.093 R)
• M12: 19,070,138 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.9

Radius: 14.4

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.38 AU - 4.72 AU

Year: 6267 Days

Day: 12.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,190,050 km

• M1: 179,069 km (0.056 R)
• M2: 810,820 km (0.112 R)
• M3: 1,349,822 km (0.089 R)
• M4: 1,846,038 km (0.099 R)
• M5: 2,683,337 km (0.071 R)
• M6: 3,396,021 km (0.049 R)
• M7: 4,686,452 km (0.092 R)
• M8: 5,693,396 km (0.098 R)
• M9: 8,257,952 km (0.058 R)
• M10: 9,101,834 km (0.04 R)
• M11: 11,981,593 km (0.11 R)
• M12: 14,387,575 km (0.115 R)
• M13: 17,777,164 km (0.085 R)
• M14: 18,542,207 km (0.062 R)
• M15: 22,782,260 km (0.052 R)
• M16: 25,300,740 km (0.06 R)
• M17: 26,447,856 km (0.086 R)
• M18: 30,293,270 km (0.109 R)
• M19: 36,905,346 km (0.119 R)
• M20: 38,726,251 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.3

Radius: 4.8

Gravity: 18.03 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.52 AU - 7.22 AU

Year: 10381 Days

Day: 15 Hours

Environment

Temp: -230 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,190,050 km

• M1: 59,989 km (0.108 R)
• M2: 214,374 km (0.117 R)
• M3: 455,376 km (0.034 R)
• M4: 859,141 km (0.054 R)
• M5: 1,115,103 km (0.095 R)
• M6: 1,525,300 km (0.097 R)
• M7: 1,720,974 km (0.117 R)
• M8: 2,320,712 km (0.098 R)
• M9: 2,678,101 km (0.11 R)
• M10: 3,338,725 km (0.086 R)
• M11: 3,869,648 km (0.078 R)
• M12: 4,426,900 km (0.041 R)
• M13: 4,624,220 km (0.049 R)
• M14: 5,408,561 km (0.047 R)
• M15: 6,207,863 km (0.078 R)
• M16: 6,672,364 km (0.12 R)
• M17: 8,676,527 km (0.099 R)
• M18: 9,256,817 km (0.118 R)
• M19: 9,626,473 km (0.032 R)
• M20: 11,100,910 km (0.083 R)
• M21: 12,218,406 km (0.119 R)
• M22: 15,113,723 km (0.119 R)
• M23: 16,550,611 km (0.074 R)
• M24: 17,651,202 km (0.051 R)
• M25: 18,291,182 km (0.058 R)
• M26: 21,725,351 km (0.111 R)
• M27: 23,127,083 km (0.116 R)
• M28: 23,380,502 km (0.107 R)
• M29: 31,253,987 km (0.098 R)
• M30: 32,294,889 km (0.109 R)
• M31: 39,389,119 km (0.105 R)
• M32: 40,480,436 km (0.109 R)
• M33: 41,095,283 km (0.101 R)
• M34: 41,343,017 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 488.2

Radius: 4.3

Gravity: 26.4 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 7.25 AU - 11.09 AU

Year: 17930 Days

Day: 19.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 63,190,050 km

• M1: 53,556 km (0.099 R)
• M2: 249,978 km (0.089 R)
• M3: 528,828 km (0.102 R)
• M4: 893,997 km (0.072 R)
• M5: 1,075,908 km (0.036 R)
• M6: 1,282,503 km (0.036 R)
• M7: 1,593,367 km (0.089 R)
• M8: 3,098,471 km (0.107 R)
• M9: 3,656,471 km (0.052 R)
• M10: 4,764,692 km (0.113 R)
• M11: 4,900,228 km (0.081 R)
• M12: 5,143,624 km (0.111 R)
• M13: 8,379,426 km (0.111 R)
• M14: 13,419,976 km (0.111 R)
• M15: 16,219,401 km (0.064 R)
• M16: 19,127,733 km (0.067 R)
• M17: 20,346,806 km (0.069 R)
• M18: 21,524,291 km (0.089 R)
• M19: 21,988,942 km (0.053 R)
• M20: 28,989,823 km (0.119 R)
• M21: 33,606,862 km (0.055 R)
• M22: 35,505,708 km (0.043 R)
• M23: 37,877,134 km (0.108 R)
• M24: 39,515,530 km (0.083 R)
• M25: 40,633,624 km (0.096 R)
• M26: 42,060,638 km (0.117 R)
• M27: 47,162,374 km (0.06 R)
• M28: 48,103,495 km (0.115 R)
• M29: 61,314,782 km (0.051 R)
• M30: 61,686,832 km (0.036 R)
• M31: 62,623,464 km (0.053 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 10,634 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit