🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.8

Radius: 8

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.47 AU - 0.75 AU

Year: 329 Days

Day: 11.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,442,267 km

• M1: 99,483 km (0.062 R)
• M2: 382,372 km (0.118 R)
• M3: 674,238 km (0.078 R)
• M4: 1,030,281 km (0.089 R)
• M5: 1,323,492 km (0.075 R)
• M6: 1,586,336 km (0.092 R)
• M7: 1,847,683 km (0.094 R)
• M8: 2,286,155 km (0.1 R)
• M9: 2,576,075 km (0.089 R)
• M10: 2,930,323 km (0.114 R)
• M11: 3,327,655 km (0.1 R)
• M12: 3,941,605 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.1

Radius: 12.6

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.67 AU - 0.89 AU

Year: 476 Days

Day: 10.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,442,267 km

• M1: 156,629 km (0.11 R)
• M2: 617,989 km (0.057 R)
• M3: 1,189,153 km (0.102 R)
• M4: 1,667,717 km (0.117 R)
• M5: 2,179,641 km (0.078 R)
• M6: 2,685,581 km (0.109 R)
• M7: 3,574,492 km (0.086 R)
• M8: 4,094,494 km (0.103 R)
• M9: 4,578,144 km (0.093 R)
• M10: 5,351,415 km (0.108 R)
• M11: 5,761,463 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.8

Radius: 9.4

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.85 AU - 1.05 AU

Year: 639 Days

Day: 13.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,442,267 km

• M1: 116,986 km (0.077 R)
• M2: 541,095 km (0.107 R)
• M3: 966,402 km (0.082 R)
• M4: 1,349,822 km (0.073 R)
• M5: 1,687,165 km (0.079 R)
• M6: 2,136,706 km (0.074 R)
• M7: 2,675,708 km (0.075 R)
• M8: 3,104,006 km (0.073 R)
• M9: 3,484,284 km (0.106 R)
• M10: 3,838,981 km (0.119 R)
• M11: 4,557,499 km (0.077 R)
• M12: 4,882,276 km (0.073 R)
• M13: 5,670,208 km (0.096 R)
• M14: 6,500,027 km (0.059 R)
• M15: 6,807,900 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.8

Radius: 13.2

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.41 AU - 1.69 AU

Year: 1332 Days

Day: 9.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,442,267 km

• M1: 165,754 km (0.098 R)
• M2: 586,124 km (0.109 R)
• M3: 1,062,444 km (0.028 R)
• M4: 1,972,298 km (0.112 R)
• M5: 4,961,264 km (0.049 R)
• M6: 6,216,091 km (0.106 R)
• M7: 6,820,765 km (0.082 R)
• M8: 7,396,119 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.8

Radius: 9.6

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.91 AU - 2.99 AU

Year: 2647 Days

Day: 11.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,442,267 km

• M1: 119,529 km (0.05 R)
• M2: 494,571 km (0.101 R)
• M3: 852,109 km (0.118 R)
• M4: 1,301,202 km (0.103 R)
• M5: 2,065,498 km (0.097 R)
• M6: 2,729,712 km (0.103 R)
• M7: 3,036,238 km (0.108 R)
• M8: 4,307,072 km (0.103 R)
• M9: 4,908,605 km (0.107 R)
• M10: 5,439,379 km (0.084 R)
• M11: 5,928,264 km (0.108 R)
• M12: 6,530,545 km (0.102 R)
• M13: 7,698,157 km (0.065 R)
• M14: 8,894,491 km (0.111 R)
• M15: 9,907,418 km (0.105 R)
• M16: 10,248,950 km (0.061 R)
• M17: 13,133,795 km (0.105 R)
• M18: 13,732,187 km (0.088 R)
• M19: 15,132,722 km (0.105 R)
• M20: 17,545,885 km (0.111 R)
• M21: 19,963,537 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.6

Radius: 9.5

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.8 AU - 3.36 AU

Year: 3731 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,442,267 km

• M1: 118,631 km (0.106 R)
• M2: 421,866 km (0.12 R)
• M3: 932,444 km (0.101 R)
• M4: 1,414,298 km (0.04 R)
• M5: 2,370,977 km (0.118 R)
• M6: 3,412,477 km (0.069 R)
• M7: 3,988,279 km (0.109 R)
• M8: 4,420,916 km (0.106 R)
• M9: 4,994,325 km (0.058 R)
• M10: 5,909,415 km (0.041 R)
• M11: 8,991,730 km (0.098 R)
• M12: 12,061,029 km (0.108 R)
• M13: 15,102,803 km (0.114 R)
• M14: 15,623,254 km (0.096 R)
• M15: 16,204,741 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 409.3

Radius: 4.8

Gravity: 17.76 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 6.01 AU - 8.07 AU

Year: 12893 Days

Day: 18.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,442,267 km

• M1: 75,397 km (0.03 R)
• M2: 352,453 km (0.035 R)
• M3: 554,559 km (0.062 R)
• M4: 1,261,260 km (0.074 R)
• M5: 1,482,664 km (0.056 R)
• M6: 1,684,322 km (0.042 R)
• M7: 2,459,688 km (0.03 R)
• M8: 2,806,905 km (0.115 R)
• M9: 3,804,723 km (0.08 R)
• M10: 7,497,845 km (0.113 R)
• M11: 7,877,525 km (0.112 R)
• M12: 8,999,060 km (0.086 R)
• M13: 10,223,219 km (0.092 R)
• M14: 15,079,017 km (0.112 R)
• M15: 26,978,929 km (0.076 R)
• M16: 27,174,902 km (0.044 R)
• M17: 31,622,596 km (0.075 R)
• M18: 34,419,029 km (0.11 R)
• M19: 35,230,747 km (0.07 R)
• M20: 42,452,435 km (0.065 R)
• M21: 43,251,437 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 155.7

Radius: 3.3

Gravity: 14.3 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.29 AU - 8.37 AU

Year: 13698 Days

Day: 15.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,442,267 km

• M1: 40,990 km (0.105 R)
• M2: 167,550 km (0.094 R)
• M3: 798,703 km (0.082 R)
• M4: 1,395,898 km (0.049 R)
• M5: 2,129,974 km (0.105 R)
• M6: 2,245,314 km (0.059 R)
• M7: 2,807,653 km (0.102 R)
• M8: 3,618,174 km (0.09 R)
• M9: 5,653,154 km (0.098 R)
• M10: 5,811,129 km (0.08 R)
• M11: 6,404,135 km (0.053 R)
• M12: 8,630,301 km (0.06 R)
• M13: 10,687,571 km (0.075 R)
• M14: 12,562,332 km (0.116 R)
• M15: 13,831,969 km (0.108 R)
• M16: 16,302,877 km (0.05 R)
• M17: 18,286,694 km (0.107 R)
• M18: 19,622,902 km (0.1 R)
• M19: 20,573,746 km (0.109 R)
• M20: 23,285,806 km (0.094 R)
• M21: 24,267,767 km (0.041 R)
• M22: 28,288,359 km (0.118 R)
• M23: 28,564,965 km (0.045 R)
• M24: 30,940,729 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 217.1

Radius: 4.2

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 7.86 AU - 8.14 AU

Year: 15619 Days

Day: 24.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,442,267 km

• M1: 53,107 km (0.111 R)
• M2: 488,886 km (0.117 R)
• M3: 946,207 km (0.065 R)
• M4: 1,101,938 km (0.106 R)
• M5: 1,560,605 km (0.117 R)
• M6: 1,794,576 km (0.081 R)
• M7: 2,699,045 km (0.116 R)
• M8: 2,843,407 km (0.111 R)
• M9: 3,976,760 km (0.049 R)
• M10: 4,643,518 km (0.06 R)
• M11: 4,881,528 km (0.088 R)
• M12: 5,846,883 km (0.09 R)
• M13: 6,971,410 km (0.104 R)
• M14: 7,810,355 km (0.115 R)
• M15: 11,356,573 km (0.052 R)
• M16: 16,249,022 km (0.052 R)
• M17: 19,647,586 km (0.097 R)
• M18: 19,801,821 km (0.118 R)
• M19: 23,060,063 km (0.089 R)
• M20: 24,103,059 km (0.115 R)
• M21: 28,001,281 km (0.075 R)
• M22: 29,793,164 km (0.03 R)
• M23: 31,554,380 km (0.076 R)
• M24: 33,383,812 km (0.111 R)
• M25: 34,716,879 km (0.05 R)
• M26: 39,050,131 km (0.105 R)
• M27: 41,790,315 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189.4

Radius: 5.5

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 8.44 AU - 11.14 AU

Year: 21144 Days

Day: 15.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,442,267 km

• M1: 86,019 km (0.027 R)
• M2: 320,738 km (0.103 R)
• M3: 498,161 km (0.079 R)
• M4: 778,657 km (0.052 R)
• M5: 1,046,288 km (0.08 R)
• M6: 1,387,221 km (0.058 R)
• M7: 1,704,967 km (0.049 R)
• M8: 1,931,458 km (0.117 R)
• M9: 3,430,878 km (0.109 R)
• M10: 3,874,585 km (0.081 R)
• M11: 6,490,154 km (0.112 R)
• M12: 9,784,150 km (0.066 R)
• M13: 14,505,010 km (0.106 R)
• M14: 16,798,794 km (0.112 R)
• M15: 19,243,522 km (0.106 R)
• M16: 20,218,451 km (0.074 R)
• M17: 20,802,033 km (0.088 R)
• M18: 25,301,637 km (0.112 R)
• M19: 25,494,020 km (0.08 R)
• M20: 32,631,185 km (0.043 R)
• M21: 33,203,098 km (0.059 R)
• M22: 34,132,101 km (0.084 R)
• M23: 40,465,177 km (0.029 R)
• M24: 44,254,341 km (0.096 R)
• M25: 46,378,332 km (0.111 R)
• M26: 50,981,309 km (0.064 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 18,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit