🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.8

Radius: 15

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.7 AU - 0.84 AU

Year: 430 Days

Day: 12 Hours

Environment

Temp: -154 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,404,440 km

• M1: 186,549 km (0.09 R)
• M2: 999,613 km (0.105 R)
• M3: 2,034,232 km (0.098 R)
• M4: 2,645,788 km (0.088 R)
• M5: 3,155,019 km (0.082 R)
• M6: 4,147,302 km (0.068 R)
• M7: 5,696,687 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.9

Radius: 13.4

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.8 AU - 1.2 AU

Year: 636 Days

Day: 13.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 51,404,440 km

• M1: 172,038 km (0.075 R)
• M2: 633,996 km (0.036 R)
• M3: 1,073,215 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.2

Radius: 11.2

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.41 AU - 2.17 AU

Year: 1523 Days

Day: 5.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,404,440 km

• M1: 139,575 km (0.112 R)
• M2: 598,242 km (0.119 R)
• M3: 979,716 km (0.113 R)
• M4: 1,461,571 km (0.098 R)
• M5: 2,147,777 km (0.093 R)
• M6: 2,543,613 km (0.068 R)
• M7: 3,038,034 km (0.095 R)
• M8: 3,595,884 km (0.094 R)
• M9: 4,020,144 km (0.106 R)
• M10: 5,112,208 km (0.1 R)
• M11: 5,574,166 km (0.074 R)
• M12: 5,943,673 km (0.098 R)
• M13: 6,308,991 km (0.085 R)
• M14: 7,129,535 km (0.103 R)
• M15: 8,068,860 km (0.094 R)
• M16: 8,441,658 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.6

Radius: 10.5

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.53 AU - 4.07 AU

Year: 4710 Days

Day: 12.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,404,440 km

• M1: 130,749 km (0.053 R)
• M2: 563,236 km (0.085 R)
• M3: 896,839 km (0.045 R)
• M4: 1,445,564 km (0.115 R)
• M5: 1,785,002 km (0.118 R)
• M6: 2,578,319 km (0.115 R)
• M7: 4,036,749 km (0.09 R)
• M8: 4,568,719 km (0.112 R)
• M9: 6,074,422 km (0.11 R)
• M10: 8,183,602 km (0.11 R)
• M11: 8,917,679 km (0.115 R)
• M12: 11,431,372 km (0.111 R)
• M13: 12,200,604 km (0.111 R)
• M14: 15,109,385 km (0.074 R)
• M15: 16,154,176 km (0.08 R)
• M16: 18,257,822 km (0.111 R)
• M17: 18,712,599 km (0.061 R)
• M18: 26,227,050 km (0.037 R)
• M19: 27,563,707 km (0.12 R)
• M20: 30,281,751 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.2

Radius: 3.2

Gravity: 69.75 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 5.74 AU - 6.94 AU

Year: 10150 Days

Day: 22.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 147.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 51,404,440 km

• M1: 45,179 km (0.114 R)
• M2: 189,391 km (0.119 R)
• M3: 414,835 km (0.119 R)
• M4: 636,539 km (0.102 R)
• M5: 952,639 km (0.094 R)
• M6: 1,311,824 km (0.084 R)
• M7: 1,662,182 km (0.103 R)
• M8: 2,994,351 km (0.106 R)
• M9: 3,250,163 km (0.11 R)
• M10: 6,778,579 km (0.108 R)
• M11: 6,896,911 km (0.094 R)
• M12: 7,677,812 km (0.083 R)
• M13: 7,892,784 km (0.115 R)
• M14: 9,219,418 km (0.068 R)
• M15: 12,130,143 km (0.073 R)
• M16: 12,777,753 km (0.102 R)
• M17: 13,386,167 km (0.091 R)
• M18: 13,697,480 km (0.116 R)
• M19: 14,924,632 km (0.063 R)
• M20: 15,191,963 km (0.106 R)
• M21: 15,599,019 km (0.115 R)
• M22: 18,195,290 km (0.042 R)
• M23: 18,654,256 km (0.082 R)
• M24: 20,898,523 km (0.054 R)
• M25: 21,571,415 km (0.073 R)
• M26: 24,131,483 km (0.118 R)
• M27: 28,595,633 km (0.064 R)
• M28: 29,633,992 km (0.093 R)
• M29: 32,450,621 km (0.116 R)
• M30: 34,385,669 km (0.11 R)
• M31: 34,969,101 km (0.117 R)
• M32: 35,677,895 km (0.08 R)
• M33: 39,620,547 km (0.072 R)
• M34: 40,909,782 km (0.052 R)
• M35: 43,300,356 km (0.086 R)
• M36: 44,667,830 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208.2

Radius: 4.7

Gravity: 9.43 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 6.21 AU - 8.11 AU

Year: 12182 Days

Day: 23.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 51,404,440 km

• M1: 58,493 km (0.094 R)
• M2: 208,839 km (0.11 R)
• M3: 926,011 km (0.104 R)
• M4: 1,318,256 km (0.086 R)
• M5: 1,500,915 km (0.11 R)
• M6: 1,686,566 km (0.072 R)
• M7: 2,136,557 km (0.084 R)
• M8: 2,460,586 km (0.099 R)
• M9: 2,855,973 km (0.112 R)
• M10: 3,037,884 km (0.097 R)
• M11: 3,724,688 km (0.115 R)
• M12: 4,117,233 km (0.08 R)
• M13: 4,297,498 km (0.071 R)
• M14: 4,509,777 km (0.078 R)
• M15: 4,757,063 km (0.055 R)
• M16: 5,773,580 km (0.077 R)
• M17: 5,934,398 km (0.091 R)
• M18: 7,219,144 km (0.104 R)
• M19: 9,411,202 km (0.075 R)
• M20: 11,598,323 km (0.097 R)
• M21: 14,394,457 km (0.096 R)
• M22: 14,870,178 km (0.046 R)
• M23: 15,603,507 km (0.109 R)
• M24: 16,169,136 km (0.033 R)
• M25: 16,360,771 km (0.08 R)
• M26: 17,274,665 km (0.099 R)
• M27: 19,853,133 km (0.087 R)
• M28: 22,201,820 km (0.066 R)
• M29: 23,320,812 km (0.111 R)
• M30: 23,565,405 km (0.083 R)
• M31: 28,730,121 km (0.058 R)
• M32: 30,153,994 km (0.088 R)
• M33: 35,993,846 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10

Radius: 3.8

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 7.93 AU - 8.47 AU

Year: 14930 Days

Day: 15.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,404,440 km

• M1: 77,043 km (0.099 R)
• M2: 263,442 km (0.094 R)
• M3: 407,953 km (0.085 R)
• M4: 712,684 km (0.115 R)
• M5: 851,810 km (0.077 R)
• M6: 1,193,791 km (0.107 R)
• M7: 4,433,183 km (0.104 R)
• M8: 4,739,111 km (0.039 R)
• M9: 5,190,747 km (0.049 R)
• M10: 8,865,170 km (0.114 R)
• M11: 9,186,506 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.5

Radius: 3.6

Gravity: 49.65 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.77 AU - 9.47 AU

Year: 17512 Days

Day: 21.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,404,440 km

• M1: 45,029 km (0.101 R)
• M2: 542,442 km (0.115 R)
• M3: 2,075,222 km (0.112 R)
• M4: 3,726,034 km (0.093 R)
• M5: 3,995,310 km (0.071 R)
• M6: 4,539,099 km (0.113 R)
• M7: 5,240,114 km (0.101 R)
• M8: 7,303,368 km (0.108 R)
• M9: 11,078,171 km (0.119 R)
• M10: 15,288,304 km (0.073 R)
• M11: 18,419,238 km (0.102 R)
• M12: 20,270,063 km (0.102 R)
• M13: 22,532,880 km (0.113 R)
• M14: 29,377,880 km (0.096 R)
• M15: 30,678,783 km (0.115 R)
• M16: 42,198,567 km (0.099 R)
• M17: 48,581,759 km (0.034 R)
• M18: 54,163,854 km (0.096 R)
• M19: 54,691,635 km (0.056 R)
• M20: 58,666,600 km (0.05 R)
• M21: 63,217,816 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.1

Radius: 6.8

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 8.85 AU - 10.69 AU

Year: 19417 Days

Day: 21.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,404,440 km

• M1: 117,135 km (0.07 R)
• M2: 409,449 km (0.085 R)
• M3: 848,519 km (0.111 R)
• M4: 1,163,572 km (0.054 R)
• M5: 2,048,743 km (0.117 R)
• M6: 2,439,193 km (0.091 R)
• M7: 3,082,165 km (0.082 R)
• M8: 3,393,777 km (0.07 R)
• M9: 3,621,615 km (0.101 R)
• M10: 3,859,625 km (0.084 R)
• M11: 5,178,181 km (0.116 R)
• M12: 7,638,766 km (0.047 R)
• M13: 8,437,918 km (0.102 R)
• M14: 12,080,327 km (0.044 R)
• M15: 15,244,921 km (0.096 R)
• M16: 17,838,648 km (0.114 R)
• M17: 22,701,776 km (0.109 R)
• M18: 23,605,198 km (0.076 R)
• M19: 28,484,332 km (0.106 R)
• M20: 30,393,500 km (0.118 R)
• M21: 31,601,353 km (0.096 R)
• M22: 34,938,583 km (0.12 R)
• M23: 35,777,827 km (0.115 R)
• M24: 36,876,623 km (0.099 R)
• M25: 38,123,821 km (0.061 R)
• M26: 45,631,091 km (0.046 R)
• M27: 50,182,606 km (0.103 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: 540 - 17,972 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit