🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.9

Radius: 8.9

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.87 AU - 0.89 AU

Year: 533 Days

Day: 9.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,990,334 km

• M1: 110,702 km (0.071 R)
• M2: 419,024 km (0.073 R)
• M3: 728,542 km (0.113 R)
• M4: 1,353,262 km (0.116 R)
• M5: 1,644,230 km (0.057 R)
• M6: 2,200,435 km (0.118 R)
• M7: 2,866,295 km (0.107 R)
• M8: 3,177,160 km (0.044 R)
• M9: 3,762,835 km (0.113 R)
• M10: 4,698,720 km (0.113 R)
• M11: 5,426,064 km (0.065 R)
• M12: 5,799,610 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515

Radius: 14.4

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.86 AU - 1.24 AU

Year: 695 Days

Day: 5.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,990,334 km

• M1: 179,069 km (0.111 R)
• M2: 715,377 km (0.106 R)
• M3: 1,298,210 km (0.089 R)
• M4: 2,217,190 km (0.118 R)
• M5: 3,371,338 km (0.086 R)
• M6: 3,941,904 km (0.06 R)
• M7: 4,499,605 km (0.042 R)
• M8: 5,059,849 km (0.075 R)
• M9: 6,186,171 km (0.077 R)
• M10: 6,819,419 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.8

Radius: 14.7

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.64 AU - 2.16 AU

Year: 1691 Days

Day: 8.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,990,334 km

• M1: 182,809 km (0.098 R)
• M2: 650,152 km (0.055 R)
• M3: 1,201,570 km (0.063 R)
• M4: 1,793,978 km (0.095 R)
• M5: 2,467,467 km (0.099 R)
• M6: 2,969,667 km (0.096 R)
• M7: 3,429,980 km (0.08 R)
• M8: 4,007,577 km (0.11 R)
• M9: 5,233,682 km (0.11 R)
• M10: 6,549,245 km (0.096 R)
• M11: 9,166,610 km (0.117 R)
• M12: 10,121,493 km (0.088 R)
• M13: 10,863,199 km (0.116 R)
• M14: 12,761,147 km (0.092 R)
• M15: 13,547,134 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707

Radius: 10.4

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.21 AU - 3.21 AU

Year: 2881 Days

Day: 12 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,990,334 km

• M1: 129,402 km (0.093 R)
• M2: 585,376 km (0.069 R)
• M3: 1,272,479 km (0.091 R)
• M4: 1,857,856 km (0.1 R)
• M5: 2,437,099 km (0.116 R)
• M6: 3,220,244 km (0.12 R)
• M7: 3,816,990 km (0.067 R)
• M8: 4,333,252 km (0.095 R)
• M9: 4,895,590 km (0.103 R)
• M10: 5,255,972 km (0.1 R)
• M11: 6,249,002 km (0.114 R)
• M12: 8,032,508 km (0.095 R)
• M13: 8,847,068 km (0.114 R)
• M14: 9,865,980 km (0.056 R)
• M15: 10,720,183 km (0.093 R)
• M16: 14,439,186 km (0.066 R)
• M17: 15,234,000 km (0.112 R)
• M18: 18,246,901 km (0.108 R)
• M19: 18,591,575 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.4

Radius: 13.4

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.56 AU - 4.06 AU

Year: 4802 Days

Day: 9.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,990,334 km

• M1: 175,478 km (0.102 R)
• M2: 616,343 km (0.101 R)
• M3: 1,216,679 km (0.083 R)
• M4: 2,169,319 km (0.111 R)
• M5: 3,150,531 km (0.076 R)
• M6: 3,964,194 km (0.094 R)
• M7: 4,409,098 km (0.12 R)
• M8: 5,428,608 km (0.11 R)
• M9: 6,130,670 km (0.052 R)
• M10: 6,958,844 km (0.059 R)
• M11: 8,339,333 km (0.117 R)
• M12: 9,937,787 km (0.065 R)
• M13: 10,944,730 km (0.067 R)
• M14: 13,161,770 km (0.107 R)
• M15: 14,759,924 km (0.1 R)
• M16: 15,491,458 km (0.059 R)
• M17: 16,424,649 km (0.113 R)
• M18: 18,921,737 km (0.107 R)
• M19: 20,467,233 km (0.108 R)
• M20: 22,167,861 km (0.042 R)
• M21: 23,052,733 km (0.069 R)
• M22: 24,191,771 km (0.042 R)
• M23: 25,447,795 km (0.062 R)
• M24: 26,582,046 km (0.025 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.9

Radius: 14.8

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.88 AU - 5.26 AU

Year: 6308 Days

Day: 7.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 60.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,990,334 km

• M1: 184,005 km (0.072 R)
• M2: 718,668 km (0.12 R)
• M3: 1,870,721 km (0.118 R)
• M4: 2,373,819 km (0.049 R)
• M5: 2,911,773 km (0.085 R)
• M6: 3,552,800 km (0.087 R)
• M7: 4,238,407 km (0.085 R)
• M8: 6,281,465 km (0.087 R)
• M9: 8,322,728 km (0.05 R)
• M10: 9,837,556 km (0.038 R)
• M11: 11,919,510 km (0.095 R)
• M12: 13,894,800 km (0.093 R)
• M13: 14,561,707 km (0.114 R)
• M14: 15,191,664 km (0.094 R)
• M15: 17,830,869 km (0.086 R)
• M16: 19,430,071 km (0.048 R)
• M17: 20,335,437 km (0.087 R)
• M18: 23,609,386 km (0.09 R)
• M19: 25,950,294 km (0.072 R)
• M20: 31,089,579 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399.5

Radius: 3.8

Gravity: 27.67 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.53 AU - 8.49 AU

Year: 13288 Days

Day: 15.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 43,990,334 km

• M1: 47,273 km (0.059 R)
• M2: 174,282 km (0.061 R)
• M3: 1,432,848 km (0.12 R)
• M4: 1,631,814 km (0.112 R)
• M5: 1,849,030 km (0.057 R)
• M6: 3,453,766 km (0.06 R)
• M7: 4,000,397 km (0.067 R)
• M8: 4,222,998 km (0.09 R)
• M9: 4,754,220 km (0.076 R)
• M10: 5,295,615 km (0.104 R)
• M11: 13,512,278 km (0.111 R)
• M12: 14,140,440 km (0.093 R)
• M13: 20,694,023 km (0.079 R)
• M14: 20,859,030 km (0.049 R)
• M15: 26,418,685 km (0.115 R)
• M16: 26,710,251 km (0.1 R)
• M17: 28,811,652 km (0.106 R)
• M18: 31,671,964 km (0.086 R)
• M19: 33,453,225 km (0.118 R)
• M20: 33,908,751 km (0.084 R)
• M21: 37,335,889 km (0.066 R)
• M22: 37,457,960 km (0.095 R)
• M23: 38,196,376 km (0.081 R)
• M24: 39,321,950 km (0.047 R)
• M25: 40,598,469 km (0.087 R)
• M26: 41,902,214 km (0.027 R)
• M27: 44,182,235 km (0.109 R)
• M28: 44,318,968 km (0.077 R)
• M29: 46,402,567 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.6

Radius: 6.3

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 6.96 AU - 8.88 AU

Year: 14391 Days

Day: 20.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,990,334 km

• M1: 78,688 km (0.088 R)
• M2: 283,787 km (0.104 R)
• M3: 647,609 km (0.11 R)
• M4: 1,260,212 km (0.087 R)
• M5: 1,693,149 km (0.109 R)
• M6: 1,960,181 km (0.062 R)
• M7: 3,038,482 km (0.072 R)
• M8: 3,741,742 km (0.071 R)
• M9: 4,410,893 km (0.062 R)
• M10: 6,359,705 km (0.101 R)
• M11: 7,007,763 km (0.111 R)
• M12: 7,619,917 km (0.11 R)
• M13: 8,519,150 km (0.05 R)
• M14: 10,575,373 km (0.117 R)
• M15: 11,903,054 km (0.093 R)
• M16: 12,941,113 km (0.045 R)
• M17: 15,637,914 km (0.064 R)
• M18: 18,048,235 km (0.082 R)
• M19: 20,927,246 km (0.057 R)
• M20: 22,925,574 km (0.065 R)
• M21: 25,842,434 km (0.098 R)
• M22: 28,613,884 km (0.036 R)
• M23: 30,468,000 km (0.045 R)
• M24: 32,922,602 km (0.104 R)
• M25: 35,505,858 km (0.11 R)
• M26: 36,960,099 km (0.09 R)
• M27: 38,803,892 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 130.5

Radius: 4

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 9.54 AU - 10.28 AU

Year: 20143 Days

Day: 16.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,990,334 km

• M1: 62,981 km (0.059 R)
• M2: 468,391 km (0.118 R)
• M3: 664,813 km (0.101 R)
• M4: 1,014,274 km (0.082 R)
• M5: 1,296,415 km (0.075 R)
• M6: 1,761,665 km (0.066 R)
• M7: 2,778,481 km (0.094 R)
• M8: 4,640,975 km (0.109 R)
• M9: 5,708,804 km (0.111 R)
• M10: 6,665,782 km (0.073 R)
• M11: 15,250,905 km (0.081 R)
• M12: 18,145,773 km (0.084 R)
• M13: 19,568,000 km (0.051 R)
• M14: 21,468,342 km (0.104 R)
• M15: 22,547,391 km (0.075 R)
• M16: 23,836,626 km (0.1 R)
• M17: 29,184,749 km (0.079 R)
• M18: 31,340,754 km (0.094 R)
• M19: 31,763,218 km (0.1 R)
• M20: 34,043,090 km (0.053 R)
• M21: 34,265,691 km (0.108 R)
• M22: 35,736,837 km (0.071 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 266 - 10,927 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit