🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.2

Radius: 12.8

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.63 AU - 0.85 AU

Year: 418 Days

Day: 10.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 120.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,050,985 km

• M1: 159,172 km (0.095 R)
• M2: 612,603 km (0.049 R)
• M3: 1,322,445 km (0.115 R)
• M4: 1,808,489 km (0.066 R)
• M5: 2,293,036 km (0.112 R)
• M6: 3,005,571 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.7

Radius: 12.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.86 AU - 0.86 AU

Year: 523 Days

Day: 13.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,050,985 km

• M1: 160,369 km (0.079 R)
• M2: 625,170 km (0.12 R)
• M3: 1,114,055 km (0.044 R)
• M4: 1,638,994 km (0.093 R)
• M5: 2,055,325 km (0.036 R)
• M6: 2,687,825 km (0.069 R)
• M7: 3,226,976 km (0.117 R)
• M8: 3,878,474 km (0.119 R)
• M9: 4,301,687 km (0.058 R)
• M10: 4,866,269 km (0.094 R)
• M11: 5,923,776 km (0.091 R)
• M12: 6,723,228 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.3

Radius: 10.9

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.82 AU - 1.3 AU

Year: 716 Days

Day: 14.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,050,985 km

• M1: 135,536 km (0.115 R)
• M2: 485,295 km (0.1 R)
• M3: 859,739 km (0.112 R)
• M4: 1,406,968 km (0.068 R)
• M5: 1,860,848 km (0.079 R)
• M6: 2,348,986 km (0.071 R)
• M7: 3,353,236 km (0.106 R)
• M8: 3,798,440 km (0.094 R)
• M9: 4,282,837 km (0.08 R)
• M10: 4,894,094 km (0.094 R)
• M11: 5,811,578 km (0.098 R)
• M12: 6,414,906 km (0.098 R)
• M13: 7,306,510 km (0.054 R)
• M14: 8,009,919 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.6

Radius: 12.5

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.5 AU - 1.96 AU

Year: 1493 Days

Day: 11.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,050,985 km

• M1: 155,432 km (0.094 R)
• M2: 688,599 km (0.097 R)
• M3: 1,124,378 km (0.074 R)
• M4: 1,609,224 km (0.076 R)
• M5: 2,243,370 km (0.036 R)
• M6: 2,663,291 km (0.064 R)
• M7: 3,360,866 km (0.097 R)
• M8: 3,943,699 km (0.087 R)
• M9: 6,223,122 km (0.118 R)
• M10: 7,041,123 km (0.051 R)
• M11: 7,700,550 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.9

Radius: 11.8

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.13 AU - 3.27 AU

Year: 2910 Days

Day: 13.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,050,985 km

• M1: 150,645 km (0.097 R)
• M2: 648,507 km (0.05 R)
• M3: 1,091,167 km (0.086 R)
• M4: 1,568,234 km (0.12 R)
• M5: 2,081,206 km (0.046 R)
• M6: 2,455,499 km (0.112 R)
• M7: 2,971,313 km (0.103 R)
• M8: 3,431,775 km (0.061 R)
• M9: 3,861,271 km (0.089 R)
• M10: 4,347,913 km (0.044 R)
• M11: 5,013,623 km (0.107 R)
• M12: 5,926,918 km (0.119 R)
• M13: 6,604,746 km (0.07 R)
• M14: 7,094,679 km (0.104 R)
• M15: 7,702,046 km (0.079 R)
• M16: 9,552,572 km (0.096 R)
• M17: 10,142,586 km (0.106 R)
• M18: 10,523,462 km (0.109 R)
• M19: 11,891,086 km (0.052 R)
• M20: 13,972,292 km (0.07 R)
• M21: 15,222,481 km (0.08 R)
• M22: 16,234,062 km (0.076 R)
• M23: 17,506,242 km (0.064 R)
• M24: 17,889,661 km (0.052 R)
• M25: 18,958,389 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.7

Radius: 12.3

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.98 AU - 3.08 AU

Year: 3460 Days

Day: 12.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,050,985 km

• M1: 154,535 km (0.114 R)
• M2: 874,998 km (0.096 R)
• M3: 1,855,911 km (0.111 R)
• M4: 2,276,580 km (0.1 R)
• M5: 2,949,621 km (0.115 R)
• M6: 4,791,620 km (0.099 R)
• M7: 5,649,564 km (0.112 R)
• M8: 6,949,569 km (0.075 R)
• M9: 7,704,141 km (0.115 R)
• M10: 8,548,920 km (0.092 R)
• M11: 10,381,344 km (0.074 R)
• M12: 16,226,133 km (0.094 R)
• M13: 17,911,652 km (0.063 R)
• M14: 21,970,691 km (0.049 R)
• M15: 25,600,085 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.6

Radius: 11.7

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.18 AU - 3.68 AU

Year: 4167 Days

Day: 8.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,050,985 km

• M1: 147,803 km (0.107 R)
• M2: 560,094 km (0.084 R)
• M3: 1,199,177 km (0.119 R)
• M4: 1,818,661 km (0.088 R)
• M5: 2,825,006 km (0.087 R)
• M6: 3,442,546 km (0.096 R)
• M7: 4,583,380 km (0.06 R)
• M8: 5,904,628 km (0.101 R)
• M9: 6,308,243 km (0.065 R)
• M10: 8,111,346 km (0.093 R)
• M11: 10,991,255 km (0.119 R)
• M12: 12,332,549 km (0.045 R)
• M13: 16,894,836 km (0.08 R)
• M14: 17,300,096 km (0.049 R)
• M15: 19,933,318 km (0.084 R)
• M16: 23,176,450 km (0.106 R)
• M17: 24,258,192 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.9

Radius: 12.6

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.94 AU - 6.54 AU

Year: 9021 Days

Day: 7.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,050,985 km

• M1: 156,629 km (0.041 R)
• M2: 861,534 km (0.07 R)
• M3: 1,474,736 km (0.108 R)
• M4: 1,867,879 km (0.045 R)
• M5: 2,853,280 km (0.052 R)
• M6: 4,025,679 km (0.064 R)
• M7: 4,490,479 km (0.108 R)
• M8: 5,021,851 km (0.066 R)
• M9: 6,105,538 km (0.106 R)
• M10: 6,609,982 km (0.102 R)
• M11: 7,339,122 km (0.085 R)
• M12: 8,554,904 km (0.066 R)
• M13: 11,707,081 km (0.049 R)
• M14: 13,125,717 km (0.093 R)
• M15: 13,724,258 km (0.075 R)
• M16: 16,302,278 km (0.06 R)
• M17: 23,688,972 km (0.112 R)
• M18: 27,567,896 km (0.11 R)
• M19: 30,273,672 km (0.059 R)
• M20: 34,827,431 km (0.12 R)
• M21: 35,743,868 km (0.091 R)
• M22: 37,505,233 km (0.058 R)
• M23: 38,833,214 km (0.052 R)
• M24: 41,327,758 km (0.092 R)
• M25: 43,662,532 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.3

Radius: 7.6

Gravity: 12.68 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 7.26 AU - 10.84 AU

Year: 17860 Days

Day: 21.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 73,050,985 km

• M1: 94,695 km (0.058 R)
• M2: 373,396 km (0.036 R)
• M3: 752,328 km (0.082 R)
• M4: 1,275,322 km (0.074 R)
• M5: 4,434,679 km (0.12 R)
• M6: 5,319,251 km (0.092 R)
• M7: 5,625,778 km (0.119 R)
• M8: 6,573,181 km (0.072 R)
• M9: 8,571,509 km (0.094 R)
• M10: 10,580,459 km (0.094 R)
• M11: 17,183,859 km (0.106 R)
• M12: 22,451,798 km (0.109 R)
• M13: 24,282,876 km (0.072 R)
• M14: 30,008,136 km (0.112 R)
• M15: 31,350,927 km (0.068 R)
• M16: 32,479,044 km (0.082 R)
• M17: 33,504,388 km (0.111 R)
• M18: 34,419,029 km (0.082 R)
• M19: 34,949,204 km (0.106 R)
• M20: 37,124,208 km (0.081 R)
• M21: 44,344,100 km (0.119 R)
• M22: 47,541,605 km (0.077 R)
• M23: 49,364,156 km (0.115 R)
• M24: 50,377,681 km (0.106 R)
• M25: 50,889,605 km (0.073 R)
• M26: 54,570,760 km (0.095 R)
• M27: 56,018,568 km (0.113 R)
• M28: 61,676,061 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 733.1

Radius: 6.7

Gravity: 16.33 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 7.04 AU - 11.28 AU

Year: 18187 Days

Day: 17.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,050,985 km

• M1: 86,168 km (0.099 R)
• M2: 319,840 km (0.081 R)
• M3: 624,422 km (0.11 R)
• M4: 925,562 km (0.096 R)
• M5: 1,223,411 km (0.112 R)
• M6: 1,617,452 km (0.062 R)
• M7: 2,363,946 km (0.109 R)
• M8: 2,705,627 km (0.043 R)
• M9: 3,631,488 km (0.079 R)
• M10: 5,724,363 km (0.086 R)
• M11: 6,130,970 km (0.095 R)
• M12: 7,232,159 km (0.096 R)
• M13: 8,773,466 km (0.051 R)
• M14: 9,149,705 km (0.11 R)
• M15: 10,946,525 km (0.11 R)
• M16: 11,637,069 km (0.083 R)
• M17: 14,691,558 km (0.116 R)
• M18: 18,241,964 km (0.067 R)
• M19: 18,590,527 km (0.106 R)
• M20: 22,325,388 km (0.092 R)
• M21: 28,585,760 km (0.081 R)
• M22: 29,771,622 km (0.082 R)
• M23: 38,717,874 km (0.07 R)
• M24: 39,583,896 km (0.036 R)
• M25: 46,819,346 km (0.118 R)
• M26: 50,148,497 km (0.051 R)
• M27: 53,099,615 km (0.079 R)
• M28: 59,727,099 km (0.112 R)
• M29: 68,131,059 km (0.104 R)
• M30: 71,745,493 km (0.096 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: 261 - 13,693 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit