🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.3

Radius: 12.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.76 AU - 0.9 AU

Year: 481 Days

Day: 6.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 76,538,596 km

• M1: 154,235 km (0.107 R)
• M2: 557,701 km (0.092 R)
• M3: 1,167,911 km (0.105 R)
• M4: 1,622,838 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.9

Radius: 13.5

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.3 AU - 1.62 AU

Year: 1122 Days

Day: 12.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,538,596 km

• M1: 167,998 km (0.094 R)
• M2: 615,745 km (0.096 R)
• M3: 1,048,831 km (0.088 R)
• M4: 1,661,584 km (0.114 R)
• M5: 2,263,715 km (0.112 R)
• M6: 2,756,640 km (0.05 R)
• M7: 3,577,783 km (0.076 R)
• M8: 5,049,975 km (0.107 R)
• M9: 6,078,012 km (0.109 R)
• M10: 6,918,902 km (0.045 R)
• M11: 7,942,749 km (0.103 R)
• M12: 8,803,835 km (0.035 R)
• M13: 10,005,704 km (0.045 R)
• M14: 10,843,901 km (0.115 R)
• M15: 11,280,278 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.9

Radius: 11.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.05 AU - 2.13 AU

Year: 1921 Days

Day: 10.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,538,596 km

• M1: 144,212 km (0.099 R)
• M2: 524,341 km (0.087 R)
• M3: 992,283 km (0.08 R)
• M4: 1,615,358 km (0.068 R)
• M5: 2,112,472 km (0.049 R)
• M6: 2,670,023 km (0.068 R)
• M7: 3,783,181 km (0.072 R)
• M8: 5,204,510 km (0.106 R)
• M9: 6,748,510 km (0.087 R)
• M10: 9,771,284 km (0.115 R)
• M11: 10,510,597 km (0.091 R)
• M12: 11,432,120 km (0.093 R)
• M13: 13,763,453 km (0.088 R)
• M14: 14,138,644 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.1

Radius: 12.2

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.49 AU - 2.53 AU

Year: 2528 Days

Day: 12.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 133.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,538,596 km

• M1: 151,842 km (0.08 R)
• M2: 680,670 km (0.074 R)
• M3: 1,910,066 km (0.103 R)
• M4: 2,748,861 km (0.093 R)
• M5: 5,022,599 km (0.115 R)
• M6: 5,655,398 km (0.12 R)
• M7: 6,922,791 km (0.079 R)
• M8: 14,176,493 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.5

Radius: 12.8

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.83 AU - 3.71 AU

Year: 3760 Days

Day: 13 Hours

Environment

Temp: -202 °C

Axial Tilt: 128.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,538,596 km

• M1: 159,920 km (0.107 R)
• M2: 629,209 km (0.032 R)
• M3: 1,664,875 km (0.063 R)
• M4: 2,576,075 km (0.034 R)
• M5: 3,308,656 km (0.094 R)
• M6: 3,714,814 km (0.115 R)
• M7: 4,699,617 km (0.101 R)
• M8: 5,421,726 km (0.093 R)
• M9: 5,934,099 km (0.105 R)
• M10: 6,478,785 km (0.108 R)
• M11: 7,504,278 km (0.119 R)
• M12: 9,450,097 km (0.095 R)
• M13: 10,935,604 km (0.087 R)
• M14: 11,979,199 km (0.082 R)
• M15: 13,521,104 km (0.072 R)
• M16: 14,264,157 km (0.112 R)
• M17: 15,139,005 km (0.04 R)
• M18: 15,616,522 km (0.119 R)
• M19: 18,216,084 km (0.025 R)
• M20: 18,756,581 km (0.087 R)
• M21: 20,895,531 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.2

Radius: 8.2

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.99 AU - 6.45 AU

Year: 7583 Days

Day: 7.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,538,596 km

• M1: 102,475 km (0.119 R)
• M2: 395,537 km (0.065 R)
• M3: 701,165 km (0.12 R)
• M4: 1,065,436 km (0.1 R)
• M5: 1,361,640 km (0.108 R)
• M6: 3,223,834 km (0.117 R)
• M7: 3,743,238 km (0.105 R)
• M8: 5,001,506 km (0.098 R)
• M9: 5,328,078 km (0.113 R)
• M10: 5,904,030 km (0.104 R)
• M11: 6,269,048 km (0.098 R)
• M12: 9,505,897 km (0.12 R)
• M13: 13,872,510 km (0.086 R)
• M14: 17,928,407 km (0.1 R)
• M15: 18,245,106 km (0.054 R)
• M16: 20,088,900 km (0.115 R)
• M17: 25,235,366 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 34

Radius: 8

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.11 AU - 9.35 AU

Year: 16400 Days

Day: 17.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,538,596 km

• M1: 102,475 km (0.068 R)
• M2: 528,380 km (0.114 R)
• M3: 791,672 km (0.119 R)
• M4: 2,730,909 km (0.112 R)
• M5: 3,058,678 km (0.09 R)
• M6: 3,451,522 km (0.105 R)
• M7: 3,793,952 km (0.103 R)
• M8: 6,113,616 km (0.11 R)
• M9: 7,503,680 km (0.114 R)
• M10: 8,114,637 km (0.036 R)
• M11: 12,827,269 km (0.119 R)
• M12: 15,189,270 km (0.084 R)
• M13: 15,726,925 km (0.096 R)
• M14: 18,974,695 km (0.062 R)
• M15: 24,206,431 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.6

Radius: 4.3

Gravity: 17.88 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 7.97 AU - 10.04 AU

Year: 17167 Days

Day: 23.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,538,596 km

• M1: 163,810 km (0.082 R)
• M2: 372,798 km (0.071 R)
• M3: 1,173,446 km (0.055 R)
• M4: 1,478,625 km (0.081 R)
• M5: 1,673,402 km (0.108 R)
• M6: 1,988,754 km (0.105 R)
• M7: 2,303,508 km (0.041 R)
• M8: 3,297,287 km (0.116 R)
• M9: 3,902,410 km (0.095 R)
• M10: 4,246,186 km (0.113 R)
• M11: 5,680,381 km (0.062 R)
• M12: 6,159,244 km (0.066 R)
• M13: 6,350,430 km (0.081 R)
• M14: 10,291,286 km (0.111 R)
• M15: 10,560,712 km (0.098 R)
• M16: 11,978,750 km (0.105 R)
• M17: 17,061,188 km (0.114 R)
• M18: 17,821,445 km (0.057 R)
• M19: 20,070,050 km (0.076 R)
• M20: 25,806,231 km (0.076 R)
• M21: 26,303,494 km (0.106 R)
• M22: 26,504,105 km (0.069 R)
• M23: 28,355,977 km (0.098 R)
• M24: 29,637,433 km (0.112 R)
• M25: 31,292,883 km (0.073 R)
• M26: 42,261,698 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.8

Radius: 5.5

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 8.28 AU - 11.88 AU

Year: 20348 Days

Day: 16.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,538,596 km

• M1: 91,105 km (0.089 R)
• M2: 285,283 km (0.113 R)
• M3: 1,034,020 km (0.113 R)
• M4: 3,549,808 km (0.106 R)
• M5: 4,230,927 km (0.053 R)
• M6: 5,590,622 km (0.094 R)
• M7: 7,132,078 km (0.097 R)
• M8: 7,436,061 km (0.086 R)
• M9: 8,689,991 km (0.097 R)
• M10: 9,137,438 km (0.119 R)
• M11: 11,728,024 km (0.04 R)
• M12: 12,274,505 km (0.063 R)
• M13: 15,121,802 km (0.108 R)
• M14: 22,446,413 km (0.109 R)
• M15: 24,540,035 km (0.088 R)
• M16: 25,432,835 km (0.089 R)
• M17: 26,244,403 km (0.108 R)
• M18: 27,073,175 km (0.116 R)
• M19: 34,218,718 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 567.9

Radius: 5.9

Gravity: 16.31 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 8.15 AU - 13.19 AU

Year: 22161 Days

Day: 17.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 76,538,596 km

• M1: 73,303 km (0.108 R)
• M2: 416,929 km (0.079 R)
• M3: 910,004 km (0.118 R)
• M4: 1,528,890 km (0.117 R)
• M5: 4,009,672 km (0.098 R)
• M6: 4,203,251 km (0.103 R)
• M7: 5,040,850 km (0.116 R)
• M8: 7,323,713 km (0.079 R)
• M9: 9,014,468 km (0.115 R)
• M10: 10,396,603 km (0.097 R)
• M11: 10,763,118 km (0.096 R)
• M12: 12,519,696 km (0.086 R)
• M13: 12,795,255 km (0.065 R)
• M14: 13,287,283 km (0.071 R)
• M15: 19,102,302 km (0.11 R)
• M16: 19,744,825 km (0.106 R)
• M17: 22,257,321 km (0.037 R)
• M18: 24,116,523 km (0.098 R)
• M19: 29,333,300 km (0.065 R)
• M20: 36,780,432 km (0.108 R)
• M21: 37,203,943 km (0.095 R)
• M22: 39,370,569 km (0.096 R)
• M23: 43,322,795 km (0.05 R)
• M24: 45,394,576 km (0.106 R)
• M25: 46,701,912 km (0.109 R)
• M26: 47,698,683 km (0.072 R)
• M27: 49,391,383 km (0.105 R)
• M28: 51,299,055 km (0.075 R)
• M29: 54,892,695 km (0.088 R)
• M30: 57,505,571 km (0.038 R)
• M31: 60,200,278 km (0.105 R)
• M32: 62,776,802 km (0.058 R)
• M33: 63,990,489 km (0.109 R)
• M34: 65,839,968 km (0.098 R)
• M35: 68,787,495 km (0.108 R)
• M36: 69,001,270 km (0.116 R)
• M37: 74,492,559 km (0.052 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 335 - 18,705 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit