🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.8

Radius: 8

Gravity: 9.29 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.51 AU - 3.87 AU

Year: 2505 Days

Day: 11.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,453,505 km

• M1: 107,411 km (0.066 R)
• M2: 463,155 km (0.092 R)
• M3: 766,839 km (0.088 R)
• M4: 1,438,533 km (0.103 R)
• M5: 1,835,865 km (0.044 R)
• M6: 2,098,260 km (0.028 R)
• M7: 2,759,931 km (0.111 R)
• M8: 3,239,542 km (0.029 R)
• M9: 3,553,398 km (0.113 R)
• M10: 3,868,302 km (0.116 R)
• M11: 4,386,060 km (0.031 R)
• M12: 4,749,134 km (0.119 R)
• M13: 5,271,979 km (0.118 R)
• M14: 5,857,953 km (0.119 R)
• M15: 7,846,857 km (0.03 R)
• M16: 8,479,955 km (0.063 R)
• M17: 8,909,301 km (0.082 R)
• M18: 9,811,676 km (0.079 R)
• M19: 10,174,450 km (0.079 R)
• M20: 11,277,435 km (0.083 R)
• M21: 12,001,040 km (0.111 R)
• M22: 12,970,135 km (0.117 R)
• M23: 14,173,201 km (0.103 R)
• M24: 16,240,195 km (0.085 R)
• M25: 18,118,845 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.6

Radius: 9.3

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.65 AU - 4.09 AU

Year: 2720 Days

Day: 5.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,453,505 km

• M1: 115,639 km (0.086 R)
• M2: 406,158 km (0.078 R)
• M3: 745,745 km (0.106 R)
• M4: 1,080,545 km (0.083 R)
• M5: 1,588,281 km (0.072 R)
• M6: 2,612,876 km (0.119 R)
• M7: 2,951,566 km (0.059 R)
• M8: 3,755,804 km (0.09 R)
• M9: 4,418,074 km (0.117 R)
• M10: 4,810,918 km (0.112 R)
• M11: 6,131,568 km (0.119 R)
• M12: 6,904,540 km (0.108 R)
• M13: 9,795,519 km (0.032 R)
• M14: 10,695,350 km (0.057 R)
• M15: 14,659,993 km (0.094 R)
• M16: 17,770,731 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.2

Radius: 11.5

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.29 AU - 4.61 AU

Year: 4128 Days

Day: 6.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,453,505 km

• M1: 143,315 km (0.075 R)
• M2: 596,896 km (0.098 R)
• M3: 2,048,593 km (0.092 R)
• M4: 2,862,854 km (0.085 R)
• M5: 3,267,517 km (0.072 R)
• M6: 4,308,718 km (0.071 R)
• M7: 4,944,808 km (0.088 R)
• M8: 6,222,972 km (0.101 R)
• M9: 7,503,680 km (0.11 R)
• M10: 8,761,947 km (0.105 R)
• M11: 12,444,748 km (0.115 R)
• M12: 13,480,414 km (0.043 R)
• M13: 14,149,715 km (0.112 R)
• M14: 16,348,803 km (0.11 R)
• M15: 17,772,825 km (0.087 R)
• M16: 19,213,303 km (0.103 R)
• M17: 20,798,143 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.6

Radius: 11.1

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.18 AU - 7.1 AU

Year: 6690 Days

Day: 12.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,453,505 km

• M1: 138,378 km (0.109 R)
• M2: 623,973 km (0.059 R)
• M3: 986,299 km (0.076 R)
• M4: 1,894,358 km (0.083 R)
• M5: 2,300,516 km (0.104 R)
• M6: 4,864,624 km (0.051 R)
• M7: 5,665,122 km (0.096 R)
• M8: 8,127,353 km (0.054 R)
• M9: 8,478,609 km (0.077 R)
• M10: 9,986,705 km (0.057 R)
• M11: 10,945,029 km (0.118 R)
• M12: 12,164,551 km (0.115 R)
• M13: 18,961,979 km (0.06 R)
• M14: 20,357,428 km (0.069 R)
• M15: 21,374,245 km (0.089 R)
• M16: 24,547,066 km (0.042 R)
• M17: 26,972,346 km (0.115 R)
• M18: 29,096,935 km (0.101 R)
• M19: 29,553,209 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.1

Radius: 12.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 6.85 AU - 9.17 AU

Year: 9968 Days

Day: 7.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 73,453,505 km

• M1: 151,842 km (0.047 R)
• M2: 587,022 km (0.098 R)
• M3: 1,168,659 km (0.034 R)
• M4: 1,592,769 km (0.1 R)
• M5: 2,371,126 km (0.075 R)
• M6: 2,869,287 km (0.107 R)
• M7: 3,509,865 km (0.074 R)
• M8: 3,891,190 km (0.054 R)
• M9: 4,328,465 km (0.101 R)
• M10: 4,798,651 km (0.093 R)
• M11: 6,418,197 km (0.103 R)
• M12: 6,913,815 km (0.118 R)
• M13: 8,199,310 km (0.047 R)
• M14: 10,704,476 km (0.052 R)
• M15: 11,623,904 km (0.113 R)
• M16: 13,010,676 km (0.069 R)
• M17: 15,630,734 km (0.108 R)
• M18: 17,245,343 km (0.095 R)
• M19: 17,758,015 km (0.106 R)
• M20: 19,123,545 km (0.087 R)
• M21: 22,234,133 km (0.11 R)
• M22: 25,103,271 km (0.1 R)
• M23: 29,026,026 km (0.06 R)
• M24: 30,917,691 km (0.072 R)
• M25: 32,334,084 km (0.091 R)
• M26: 33,793,261 km (0.102 R)
• M27: 34,597,051 km (0.06 R)
• M28: 35,061,851 km (0.108 R)
• M29: 36,004,318 km (0.112 R)
• M30: 37,939,666 km (0.102 R)
• M31: 39,943,529 km (0.108 R)
• M32: 42,148,901 km (0.03 R)
• M33: 43,214,337 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 730.3

Radius: 3.9

Gravity: 48.01 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 10.52 AU - 12.86 AU

Year: 17575 Days

Day: 19.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 52.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,453,505 km

• M1: 52,658 km (0.101 R)
• M2: 177,872 km (0.074 R)
• M3: 313,856 km (0.099 R)
• M4: 544,985 km (0.097 R)
• M5: 1,071,121 km (0.117 R)
• M6: 3,103,857 km (0.087 R)
• M7: 4,609,410 km (0.113 R)
• M8: 5,833,868 km (0.094 R)
• M9: 11,521,130 km (0.082 R)
• M10: 12,970,135 km (0.112 R)
• M11: 21,005,635 km (0.086 R)
• M12: 29,515,510 km (0.12 R)
• M13: 35,184,073 km (0.107 R)
• M14: 35,855,468 km (0.117 R)
• M15: 44,278,127 km (0.093 R)
• M16: 45,218,051 km (0.091 R)
• M17: 48,778,331 km (0.054 R)
• M18: 50,796,705 km (0.099 R)
• M19: 52,346,689 km (0.117 R)
• M20: 56,816,822 km (0.078 R)
• M21: 57,000,678 km (0.061 R)
• M22: 60,570,981 km (0.09 R)
• M23: 63,097,839 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.6

Radius: 5.2

Gravity: 27.54 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 12.01 AU - 12.13 AU

Year: 18439 Days

Day: 20.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 73,453,505 km

• M1: 64,626 km (0.11 R)
• M2: 231,129 km (0.09 R)
• M3: 572,511 km (0.1 R)
• M4: 1,851,872 km (0.043 R)
• M5: 3,105,203 km (0.068 R)
• M6: 3,519,140 km (0.092 R)
• M7: 4,192,032 km (0.096 R)
• M8: 4,910,849 km (0.058 R)
• M9: 5,748,597 km (0.09 R)
• M10: 7,850,597 km (0.115 R)
• M11: 8,511,820 km (0.111 R)
• M12: 9,154,492 km (0.118 R)
• M13: 10,901,795 km (0.107 R)
• M14: 12,928,996 km (0.076 R)
• M15: 14,736,587 km (0.074 R)
• M16: 18,054,967 km (0.08 R)
• M17: 20,304,919 km (0.109 R)
• M18: 21,255,015 km (0.08 R)
• M19: 22,036,215 km (0.115 R)
• M20: 22,836,265 km (0.1 R)
• M21: 26,342,091 km (0.073 R)
• M22: 27,701,038 km (0.067 R)
• M23: 28,164,193 km (0.05 R)
• M24: 33,604,918 km (0.104 R)
• M25: 37,691,034 km (0.106 R)
• M26: 38,402,671 km (0.115 R)
• M27: 46,343,326 km (0.109 R)
• M28: 47,159,981 km (0.111 R)
• M29: 47,324,538 km (0.082 R)
• M30: 48,152,712 km (0.08 R)
• M31: 55,128,611 km (0.07 R)
• M32: 61,171,766 km (0.104 R)
• M33: 63,747,841 km (0.092 R)
• M34: 64,150,409 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 717.9

Radius: 3.7

Gravity: 52.44 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 10.75 AU - 13.47 AU

Year: 18530 Days

Day: 17.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 73,453,505 km

• M1: 46,226 km (0.115 R)
• M2: 283,937 km (0.081 R)
• M3: 1,321,398 km (0.105 R)
• M4: 1,969,157 km (0.104 R)
• M5: 2,474,050 km (0.085 R)
• M6: 2,732,256 km (0.092 R)
• M7: 4,708,892 km (0.053 R)
• M8: 4,850,561 km (0.119 R)
• M9: 5,254,924 km (0.097 R)
• M10: 6,558,520 km (0.072 R)
• M11: 7,667,340 km (0.087 R)
• M12: 7,814,245 km (0.074 R)
• M13: 8,317,492 km (0.114 R)
• M14: 9,556,312 km (0.109 R)
• M15: 9,783,551 km (0.059 R)
• M16: 10,729,159 km (0.111 R)
• M17: 13,640,633 km (0.113 R)
• M18: 14,742,272 km (0.113 R)
• M19: 15,743,979 km (0.056 R)
• M20: 16,141,012 km (0.068 R)
• M21: 18,053,920 km (0.098 R)
• M22: 20,392,135 km (0.076 R)
• M23: 21,054,554 km (0.116 R)
• M24: 22,422,178 km (0.103 R)
• M25: 25,441,212 km (0.09 R)
• M26: 27,904,341 km (0.043 R)
• M27: 31,890,077 km (0.118 R)
• M28: 33,689,740 km (0.104 R)
• M29: 42,171,341 km (0.115 R)
• M30: 44,336,471 km (0.089 R)
• M31: 44,809,948 km (0.089 R)
• M32: 46,900,428 km (0.116 R)
• M33: 52,145,629 km (0.111 R)
• M34: 54,276,800 km (0.091 R)
• M35: 55,546,288 km (0.058 R)
• M36: 56,280,664 km (0.041 R)
• M37: 57,956,309 km (0.12 R)
• M38: 59,473,531 km (0.11 R)
• M39: 60,822,754 km (0.049 R)
• M40: 65,807,505 km (0.105 R)
• M41: 70,199,399 km (0.094 R)
• M42: 70,842,371 km (0.107 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 14,565 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit