🌌 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: 954.6

Radius: 9.4

Gravity: 10.8 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.59 AU - 0.72 AU

Year: 368 Days

Day: 12.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,155,831 km

• M1: 116,986 km (0.085 R)
• M2: 428,299 km (0.112 R)
• M3: 905,965 km (0.113 R)
• M4: 1,238,970 km (0.07 R)
• M5: 1,712,596 km (0.1 R)
• M6: 2,084,347 km (0.081 R)
• M7: 2,386,535 km (0.104 R)
• M8: 2,916,859 km (0.089 R)
• M9: 3,273,949 km (0.105 R)
• M10: 3,916,771 km (0.083 R)
• M11: 4,226,888 km (0.119 R)
• M12: 4,989,388 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.3

Radius: 10.4

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.94 AU - 1.48 AU

Year: 936 Days

Day: 5.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,155,831 km

• M1: 129,402 km (0.118 R)
• M2: 530,923 km (0.08 R)
• M3: 1,148,164 km (0.093 R)
• M4: 1,624,034 km (0.074 R)
• M5: 1,982,770 km (0.097 R)
• M6: 2,414,659 km (0.1 R)
• M7: 3,845,862 km (0.101 R)
• M8: 4,553,909 km (0.103 R)
• M9: 5,089,469 km (0.116 R)
• M10: 5,504,902 km (0.105 R)
• M11: 6,623,745 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.7

Radius: 9.2

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.66 AU - 2.18 AU

Year: 1870 Days

Day: 5.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,155,831 km

• M1: 114,742 km (0.037 R)
• M2: 501,302 km (0.108 R)
• M3: 1,132,306 km (0.045 R)
• M4: 1,915,750 km (0.103 R)
• M5: 2,378,008 km (0.081 R)
• M6: 3,620,867 km (0.096 R)
• M7: 3,914,228 km (0.117 R)
• M8: 4,493,920 km (0.099 R)
• M9: 5,375,201 km (0.107 R)
• M10: 6,627,634 km (0.025 R)
• M11: 8,257,952 km (0.092 R)
• M12: 11,647,840 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.3

Radius: 11.8

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.97 AU - 2.83 AU

Year: 2614 Days

Day: 13.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,155,831 km

• M1: 147,055 km (0.115 R)
• M2: 558,598 km (0.098 R)
• M3: 960,119 km (0.061 R)
• M4: 1,412,503 km (0.111 R)
• M5: 2,214,048 km (0.096 R)
• M6: 2,611,380 km (0.08 R)
• M7: 3,039,679 km (0.078 R)
• M8: 3,589,751 km (0.098 R)
• M9: 4,310,962 km (0.089 R)
• M10: 5,031,126 km (0.11 R)
• M11: 5,622,636 km (0.108 R)
• M12: 6,042,258 km (0.108 R)
• M13: 7,063,862 km (0.097 R)
• M14: 7,459,847 km (0.046 R)
• M15: 7,838,629 km (0.075 R)
• M16: 8,807,425 km (0.091 R)
• M17: 10,157,247 km (0.098 R)
• M18: 14,297,368 km (0.108 R)
• M19: 15,333,483 km (0.103 R)
• M20: 16,578,286 km (0.12 R)
• M21: 17,007,932 km (0.098 R)
• M22: 18,227,603 km (0.086 R)
• M23: 18,975,293 km (0.078 R)
• M24: 20,104,757 km (0.108 R)
• M25: 20,778,845 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.3

Radius: 9.4

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.3 AU - 2.54 AU

Year: 2646 Days

Day: 12 Hours

Environment

Temp: -207 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,155,831 km

• M1: 116,986 km (0.07 R)
• M2: 772,823 km (0.118 R)
• M3: 1,196,334 km (0.108 R)
• M4: 1,795,174 km (0.094 R)
• M5: 2,274,037 km (0.119 R)
• M6: 2,803,614 km (0.036 R)
• M7: 3,376,424 km (0.114 R)
• M8: 3,740,396 km (0.118 R)
• M9: 5,492,336 km (0.112 R)
• M10: 6,679,994 km (0.107 R)
• M11: 7,669,135 km (0.041 R)
• M12: 8,030,713 km (0.118 R)
• M13: 10,525,407 km (0.073 R)
• M14: 10,890,426 km (0.095 R)
• M15: 11,731,764 km (0.041 R)
• M16: 13,213,681 km (0.108 R)
• M17: 14,121,590 km (0.111 R)
• M18: 16,114,533 km (0.068 R)
• M19: 17,150,498 km (0.086 R)
• M20: 18,580,355 km (0.053 R)
• M21: 22,068,977 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.3

Radius: 12.3

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.16 AU - 2.96 AU

Year: 2879 Days

Day: 6.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,155,831 km

• M1: 153,039 km (0.076 R)
• M2: 694,134 km (0.084 R)
• M3: 1,720,525 km (0.083 R)
• M4: 2,240,677 km (0.108 R)
• M5: 3,568,208 km (0.115 R)
• M6: 4,462,355 km (0.064 R)
• M7: 6,512,444 km (0.12 R)
• M8: 9,784,449 km (0.109 R)
• M9: 10,473,048 km (0.109 R)
• M10: 11,793,698 km (0.063 R)
• M11: 14,719,234 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.8

Radius: 10.8

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.6 AU - 4.8 AU

Year: 7162 Days

Day: 5.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,155,831 km

• M1: 134,488 km (0.056 R)
• M2: 543,788 km (0.056 R)
• M3: 952,041 km (0.063 R)
• M4: 1,510,639 km (0.036 R)
• M5: 1,960,779 km (0.054 R)
• M6: 2,632,175 km (0.072 R)
• M7: 3,471,269 km (0.094 R)
• M8: 3,942,203 km (0.109 R)
• M9: 4,678,075 km (0.069 R)
• M10: 5,281,403 km (0.107 R)
• M11: 6,145,630 km (0.106 R)
• M12: 6,643,791 km (0.086 R)
• M13: 8,007,824 km (0.115 R)
• M14: 8,602,626 km (0.098 R)
• M15: 9,632,009 km (0.116 R)
• M16: 14,636,356 km (0.084 R)
• M17: 15,188,373 km (0.076 R)
• M18: 17,291,569 km (0.083 R)
• M19: 17,908,660 km (0.115 R)
• M20: 18,732,795 km (0.066 R)
• M21: 20,869,202 km (0.039 R)
• M22: 21,287,029 km (0.083 R)
• M23: 21,996,123 km (0.055 R)
• M24: 22,574,468 km (0.105 R)
• M25: 25,779,303 km (0.117 R)
• M26: 26,829,780 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.7

Radius: 13.2

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 3.91 AU - 5.89 AU

Year: 7624 Days

Day: 12.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,155,831 km

• M1: 164,109 km (0.11 R)
• M2: 606,769 km (0.093 R)
• M3: 1,090,718 km (0.075 R)
• M4: 1,565,542 km (0.058 R)
• M5: 2,297,075 km (0.117 R)
• M6: 2,733,452 km (0.11 R)
• M7: 4,390,398 km (0.102 R)
• M8: 4,893,646 km (0.108 R)
• M9: 5,818,609 km (0.103 R)
• M10: 7,576,235 km (0.074 R)
• M11: 10,471,851 km (0.079 R)
• M12: 11,478,345 km (0.069 R)
• M13: 13,107,915 km (0.091 R)
• M14: 13,625,524 km (0.111 R)
• M15: 14,337,011 km (0.09 R)
• M16: 15,387,338 km (0.045 R)
• M17: 16,224,487 km (0.057 R)
• M18: 19,064,753 km (0.114 R)
• M19: 23,375,266 km (0.051 R)
• M20: 24,741,842 km (0.077 R)
• M21: 25,267,978 km (0.085 R)
• M22: 25,711,984 km (0.1 R)
• M23: 28,774,552 km (0.105 R)
• M24: 31,047,991 km (0.096 R)
• M25: 33,974,125 km (0.113 R)
• M26: 34,842,840 km (0.1 R)
• M27: 35,949,565 km (0.12 R)
• M28: 38,583,684 km (0.034 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513

Radius: 6.3

Gravity: 12.93 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.38 AU - 6.54 AU

Year: 11541 Days

Day: 15.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,155,831 km

• M1: 81,381 km (0.118 R)
• M2: 381,026 km (0.07 R)
• M3: 880,533 km (0.101 R)
• M4: 1,150,707 km (0.077 R)
• M5: 1,689,708 km (0.028 R)
• M6: 1,941,182 km (0.1 R)
• M7: 5,877,700 km (0.029 R)
• M8: 6,647,681 km (0.074 R)
• M9: 7,318,627 km (0.12 R)
• M10: 9,700,225 km (0.067 R)
• M11: 10,931,565 km (0.104 R)
• M12: 12,671,837 km (0.05 R)
• M13: 13,392,301 km (0.116 R)
• M14: 13,700,472 km (0.109 R)
• M15: 16,761,843 km (0.107 R)
• M16: 18,986,812 km (0.113 R)
• M17: 20,089,648 km (0.119 R)
• M18: 20,412,330 km (0.102 R)
• M19: 25,301,787 km (0.095 R)
• M20: 31,348,383 km (0.078 R)
• M21: 47,464,861 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 569.7

Radius: 3.7

Gravity: 41.61 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 8.17 AU - 12.45 AU

Year: 23270 Days

Day: 21.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,155,831 km

• M1: 59,241 km (0.112 R)
• M2: 179,368 km (0.095 R)
• M3: 414,536 km (0.088 R)
• M4: 571,613 km (0.094 R)
• M5: 1,099,096 km (0.103 R)
• M6: 1,801,308 km (0.087 R)
• M7: 2,863,154 km (0.1 R)
• M8: 5,538,263 km (0.084 R)
• M9: 8,631,947 km (0.117 R)
• M10: 14,466,563 km (0.054 R)
• M11: 17,391,351 km (0.107 R)
• M12: 20,687,142 km (0.052 R)
• M13: 22,789,740 km (0.05 R)
• M14: 24,811,106 km (0.109 R)
• M15: 27,297,123 km (0.101 R)
• M16: 33,957,370 km (0.073 R)
• M17: 34,910,608 km (0.036 R)
• M18: 38,168,251 km (0.111 R)
• M19: 46,934,686 km (0.107 R)
• M20: 53,590,445 km (0.096 R)
• M21: 61,247,014 km (0.097 R)
• M22: 63,268,829 km (0.083 R)
• M23: 65,753,351 km (0.09 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 13,965 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit