🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.4

Radius: 13.4

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.62 AU - 0.8 AU

Year: 413 Days

Day: 13.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 83,378,100 km

• M1: 167,250 km (0.095 R)
• M2: 674,387 km (0.085 R)
• M3: 1,102,088 km (0.108 R)
• M4: 1,637,648 km (0.116 R)
• M5: 2,115,314 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.2

Radius: 8.2

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.79 AU - 0.95 AU

Year: 560 Days

Day: 14.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,378,100 km

• M1: 102,175 km (0.096 R)
• M2: 360,680 km (0.115 R)
• M3: 619,186 km (0.084 R)
• M4: 893,099 km (0.09 R)
• M5: 1,225,356 km (0.087 R)
• M6: 1,536,819 km (0.065 R)
• M7: 1,835,117 km (0.075 R)
• M8: 2,429,469 km (0.117 R)
• M9: 3,724,389 km (0.081 R)
• M10: 4,123,965 km (0.048 R)
• M11: 4,628,558 km (0.077 R)
• M12: 4,944,359 km (0.079 R)
• M13: 5,566,387 km (0.08 R)
• M14: 6,258,577 km (0.085 R)
• M15: 6,547,151 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.4

Radius: 8.8

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.83 AU - 1.37 AU

Year: 796 Days

Day: 10.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,378,100 km

• M1: 109,506 km (0.119 R)
• M2: 463,903 km (0.05 R)
• M3: 783,145 km (0.097 R)
• M4: 1,349,074 km (0.056 R)
• M5: 1,748,201 km (0.049 R)
• M6: 2,623,199 km (0.1 R)
• M7: 3,047,907 km (0.119 R)
• M8: 4,359,432 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202

Radius: 14.9

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.06 AU - 1.18 AU

Year: 818 Days

Day: 12.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,378,100 km

• M1: 192,383 km (0.116 R)
• M2: 658,380 km (0.101 R)
• M3: 1,281,605 km (0.062 R)
• M4: 1,914,554 km (0.104 R)
• M5: 2,471,058 km (0.072 R)
• M6: 3,058,528 km (0.065 R)
• M7: 3,529,463 km (0.071 R)
• M8: 5,165,914 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.2

Radius: 11.7

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.38 AU - 2.18 AU

Year: 1639 Days

Day: 9.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,378,100 km

• M1: 145,858 km (0.111 R)
• M2: 745,446 km (0.101 R)
• M3: 1,300,604 km (0.066 R)
• M4: 1,851,274 km (0.066 R)
• M5: 2,434,107 km (0.076 R)
• M6: 3,896,576 km (0.083 R)
• M7: 4,389,351 km (0.106 R)
• M8: 4,817,500 km (0.098 R)
• M9: 5,273,475 km (0.055 R)
• M10: 7,170,675 km (0.112 R)
• M11: 8,519,449 km (0.026 R)
• M12: 9,026,137 km (0.063 R)
• M13: 9,926,866 km (0.088 R)
• M14: 10,310,584 km (0.106 R)
• M15: 10,704,326 km (0.105 R)
• M16: 11,907,093 km (0.077 R)
• M17: 12,460,755 km (0.1 R)
• M18: 13,748,044 km (0.066 R)
• M19: 14,894,562 km (0.089 R)
• M20: 15,537,684 km (0.089 R)
• M21: 15,913,473 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.1

Radius: 8.3

Gravity: 13.63 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.75 AU - 2.65 AU

Year: 2252 Days

Day: 13.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 83,378,100 km

• M1: 105,915 km (0.039 R)
• M2: 506,538 km (0.075 R)
• M3: 860,487 km (0.113 R)
• M4: 1,120,787 km (0.093 R)
• M5: 1,494,632 km (0.078 R)
• M6: 1,926,073 km (0.038 R)
• M7: 2,554,384 km (0.075 R)
• M8: 3,734,711 km (0.057 R)
• M9: 4,151,042 km (0.027 R)
• M10: 4,936,730 km (0.086 R)
• M11: 5,488,297 km (0.079 R)
• M12: 6,378,404 km (0.061 R)
• M13: 6,714,551 km (0.081 R)
• M14: 8,211,427 km (0.083 R)
• M15: 8,745,192 km (0.035 R)
• M16: 9,516,519 km (0.108 R)
• M17: 11,114,075 km (0.051 R)
• M18: 11,437,505 km (0.09 R)
• M19: 12,145,702 km (0.066 R)
• M20: 12,971,332 km (0.08 R)
• M21: 13,741,462 km (0.103 R)
• M22: 16,599,081 km (0.041 R)
• M23: 18,055,266 km (0.101 R)
• M24: 18,334,117 km (0.12 R)
• M25: 19,303,361 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459

Radius: 14.8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.26 AU - 4.64 AU

Year: 5419 Days

Day: 5.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,378,100 km

• M1: 185,352 km (0.107 R)
• M2: 741,407 km (0.083 R)
• M3: 1,225,207 km (0.119 R)
• M4: 2,120,849 km (0.068 R)
• M5: 2,608,089 km (0.089 R)
• M6: 3,266,021 km (0.092 R)
• M7: 3,901,213 km (0.112 R)
• M8: 4,472,677 km (0.054 R)
• M9: 5,100,091 km (0.081 R)
• M10: 9,361,536 km (0.098 R)
• M11: 11,225,675 km (0.072 R)
• M12: 15,121,502 km (0.037 R)
• M13: 16,423,752 km (0.115 R)
• M14: 20,172,525 km (0.111 R)
• M15: 20,916,924 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513.7

Radius: 4.6

Gravity: 24.28 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 4.46 AU - 6.66 AU

Year: 9049 Days

Day: 21.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,378,100 km

• M1: 58,493 km (0.054 R)
• M2: 230,231 km (0.119 R)
• M3: 377,884 km (0.082 R)
• M4: 539,450 km (0.117 R)
• M5: 708,346 km (0.089 R)
• M6: 2,035,578 km (0.07 R)
• M7: 3,114,777 km (0.106 R)
• M8: 5,647,020 km (0.041 R)
• M9: 5,810,980 km (0.111 R)
• M10: 6,183,179 km (0.1 R)
• M11: 9,337,600 km (0.111 R)
• M12: 12,625,761 km (0.109 R)
• M13: 13,833,913 km (0.049 R)
• M14: 15,819,825 km (0.092 R)
• M15: 17,221,557 km (0.07 R)
• M16: 29,030,664 km (0.096 R)
• M17: 29,421,712 km (0.095 R)
• M18: 35,605,490 km (0.106 R)
• M19: 40,743,279 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 246.5

Radius: 5.2

Gravity: 9.12 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.53 AU - 10.49 AU

Year: 17136 Days

Day: 19.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,378,100 km

• M1: 388,655 km (0.085 R)
• M2: 854,204 km (0.047 R)
• M3: 1,024,297 km (0.099 R)
• M4: 1,241,513 km (0.108 R)
• M5: 1,692,550 km (0.109 R)
• M6: 2,246,062 km (0.119 R)
• M7: 2,435,603 km (0.032 R)
• M8: 3,208,575 km (0.076 R)
• M9: 3,574,791 km (0.049 R)
• M10: 3,995,460 km (0.113 R)
• M11: 5,800,807 km (0.105 R)
• M12: 6,880,754 km (0.042 R)
• M13: 7,323,414 km (0.107 R)
• M14: 8,000,943 km (0.084 R)
• M15: 10,231,896 km (0.072 R)
• M16: 10,861,703 km (0.117 R)
• M17: 14,663,434 km (0.098 R)
• M18: 15,804,865 km (0.114 R)
• M19: 16,716,814 km (0.079 R)
• M20: 17,737,520 km (0.025 R)
• M21: 20,469,925 km (0.107 R)
• M22: 21,383,520 km (0.083 R)
• M23: 22,760,269 km (0.106 R)
• M24: 24,378,619 km (0.059 R)
• M25: 27,742,177 km (0.073 R)
• M26: 28,757,199 km (0.09 R)
• M27: 32,504,625 km (0.099 R)
• M28: 38,653,547 km (0.112 R)
• M29: 42,531,273 km (0.048 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 756.7

Radius: 3.8

Gravity: 52.4 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 8.58 AU - 11.42 AU

Year: 21828 Days

Day: 16.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 83,378,100 km

• M1: 47,273 km (0.079 R)
• M2: 234,569 km (0.053 R)
• M3: 363,672 km (0.081 R)
• M4: 694,134 km (0.045 R)
• M5: 1,478,326 km (0.038 R)
• M6: 1,742,815 km (0.062 R)
• M7: 2,881,554 km (0.118 R)
• M8: 3,380,613 km (0.07 R)
• M9: 3,559,233 km (0.094 R)
• M10: 4,268,177 km (0.076 R)
• M11: 6,133,363 km (0.103 R)
• M12: 6,489,406 km (0.066 R)
• M13: 6,859,212 km (0.101 R)
• M14: 8,479,955 km (0.045 R)
• M15: 9,851,020 km (0.05 R)
• M16: 10,032,183 km (0.096 R)
• M17: 10,277,224 km (0.093 R)
• M18: 10,589,136 km (0.118 R)
• M19: 14,063,247 km (0.117 R)
• M20: 14,603,295 km (0.108 R)
• M21: 15,156,957 km (0.111 R)
• M22: 16,730,278 km (0.067 R)
• M23: 18,136,797 km (0.12 R)
• M24: 18,318,110 km (0.081 R)
• M25: 18,592,173 km (0.107 R)
• M26: 22,407,966 km (0.092 R)
• M27: 23,037,773 km (0.102 R)
• M28: 25,335,147 km (0.093 R)
• M29: 26,133,701 km (0.085 R)
• M30: 35,062,001 km (0.109 R)
• M31: 39,897,004 km (0.109 R)
• M32: 51,948,758 km (0.068 R)
• M33: 53,050,397 km (0.082 R)
• M34: 54,355,190 km (0.079 R)
• M35: 59,588,572 km (0.065 R)
• M36: 59,989,045 km (0.103 R)
• M37: 60,391,314 km (0.069 R)
• M38: 60,593,122 km (0.102 R)
• M39: 62,636,180 km (0.09 R)
• M40: 65,360,058 km (0.089 R)
• M41: 79,200,105 km (0.092 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: 490 - 19,873 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit