🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.51 AU - 0.57 AU

Year: 252 Days

Day: 41.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.5

Radius: 15

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.63 AU - 0.79 AU

Year: 380 Days

Day: 14.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 89,541,754 km

• M1: 186,549 km (0.104 R)
• M2: 850,464 km (0.095 R)
• M3: 1,319,004 km (0.108 R)
• M4: 1,890,019 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.5

Radius: 14.8

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.71 AU - 0.97 AU

Year: 489 Days

Day: 11.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,541,754 km

• M1: 184,005 km (0.109 R)
• M2: 696,827 km (0.105 R)
• M3: 1,171,651 km (0.099 R)
• M4: 1,635,853 km (0.104 R)
• M5: 2,164,831 km (0.078 R)
• M6: 2,654,165 km (0.101 R)
• M7: 3,114,777 km (0.07 R)
• M8: 3,692,973 km (0.091 R)
• M9: 5,872,913 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.8

Radius: 10.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.85 AU - 1.25 AU

Year: 684 Days

Day: 6.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,541,754 km

• M1: 135,984 km (0.109 R)
• M2: 595,998 km (0.1 R)
• M3: 1,258,268 km (0.076 R)
• M4: 1,661,733 km (0.118 R)
• M5: 2,335,522 km (0.046 R)
• M6: 2,811,094 km (0.086 R)
• M7: 3,362,811 km (0.097 R)
• M8: 4,209,684 km (0.076 R)
• M9: 4,933,738 km (0.065 R)
• M10: 5,685,916 km (0.055 R)
• M11: 6,341,454 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.3

Radius: 14.7

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.3 AU - 1.36 AU

Year: 975 Days

Day: 10.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,541,754 km

• M1: 182,809 km (0.119 R)
• M2: 725,400 km (0.094 R)
• M3: 1,432,400 km (0.118 R)
• M4: 2,973,258 km (0.082 R)
• M5: 3,539,186 km (0.077 R)
• M6: 4,210,731 km (0.118 R)
• M7: 4,778,605 km (0.092 R)
• M8: 5,478,573 km (0.083 R)
• M9: 6,494,792 km (0.094 R)
• M10: 7,182,343 km (0.111 R)
• M11: 7,684,543 km (0.096 R)
• M12: 8,372,544 km (0.053 R)
• M13: 9,363,331 km (0.092 R)
• M14: 10,912,865 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.5

Radius: 8.2

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.53 AU - 3.63 AU

Year: 3437 Days

Day: 12.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,541,754 km

• M1: 102,026 km (0.112 R)
• M2: 540,796 km (0.111 R)
• M3: 1,062,893 km (0.103 R)
• M4: 2,070,734 km (0.081 R)
• M5: 2,670,920 km (0.088 R)
• M6: 4,041,985 km (0.106 R)
• M7: 5,995,135 km (0.07 R)
• M8: 6,334,423 km (0.114 R)
• M9: 6,686,576 km (0.03 R)
• M10: 7,922,254 km (0.097 R)
• M11: 9,953,195 km (0.106 R)
• M12: 12,218,556 km (0.094 R)
• M13: 13,138,433 km (0.079 R)
• M14: 14,103,638 km (0.087 R)
• M15: 19,773,398 km (0.091 R)
• M16: 20,463,194 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.4

Radius: 11.3

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 4.53 AU - 4.95 AU

Year: 6561 Days

Day: 12.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 89,541,754 km

• M1: 140,622 km (0.114 R)
• M2: 504,294 km (0.034 R)
• M3: 878,289 km (0.116 R)
• M4: 1,616,405 km (0.096 R)
• M5: 2,253,094 km (0.04 R)
• M6: 3,032,349 km (0.12 R)
• M7: 3,454,963 km (0.098 R)
• M8: 5,667,815 km (0.109 R)
• M9: 6,343,249 km (0.042 R)
• M10: 7,038,879 km (0.116 R)
• M11: 8,032,658 km (0.048 R)
• M12: 8,544,881 km (0.092 R)
• M13: 10,129,272 km (0.118 R)
• M14: 10,597,364 km (0.087 R)
• M15: 11,531,303 km (0.064 R)
• M16: 14,237,229 km (0.058 R)
• M17: 15,596,924 km (0.113 R)
• M18: 18,135,451 km (0.083 R)
• M19: 20,530,513 km (0.11 R)
• M20: 23,275,334 km (0.084 R)
• M21: 25,391,097 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.6

Radius: 6.1

Gravity: 20.04 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 9.16 AU - 11.9 AU

Year: 21726 Days

Day: 24.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 89,541,754 km

• M1: 75,996 km (0.067 R)
• M2: 727,046 km (0.037 R)
• M3: 1,162,076 km (0.108 R)
• M4: 2,513,843 km (0.076 R)
• M5: 3,588,554 km (0.083 R)
• M6: 3,963,446 km (0.103 R)
• M7: 4,364,219 km (0.075 R)
• M8: 5,444,166 km (0.035 R)
• M9: 6,330,084 km (0.093 R)
• M10: 7,163,045 km (0.083 R)
• M11: 8,014,706 km (0.059 R)
• M12: 8,931,890 km (0.09 R)
• M13: 9,561,548 km (0.109 R)
• M14: 11,101,957 km (0.117 R)
• M15: 13,526,191 km (0.068 R)
• M16: 14,050,232 km (0.102 R)
• M17: 15,059,120 km (0.064 R)
• M18: 17,746,795 km (0.063 R)
• M19: 19,960,993 km (0.106 R)
• M20: 20,738,154 km (0.068 R)
• M21: 21,434,533 km (0.105 R)
• M22: 25,264,388 km (0.106 R)
• M23: 28,540,880 km (0.069 R)
• M24: 29,154,381 km (0.036 R)
• M25: 30,153,994 km (0.09 R)
• M26: 33,561,086 km (0.041 R)
• M27: 37,654,083 km (0.086 R)
• M28: 40,817,480 km (0.07 R)
• M29: 46,476,019 km (0.035 R)
• M30: 46,984,054 km (0.095 R)
• M31: 48,878,411 km (0.112 R)
• M32: 54,678,321 km (0.07 R)
• M33: 55,624,079 km (0.1 R)
• M34: 56,005,404 km (0.073 R)
• M35: 57,548,206 km (0.026 R)
• M36: 59,915,144 km (0.064 R)
• M37: 61,732,459 km (0.117 R)
• M38: 65,688,874 km (0.102 R)
• M39: 66,757,451 km (0.097 R)
• M40: 68,272,878 km (0.11 R)
• M41: 71,372,396 km (0.052 R)
• M42: 79,287,320 km (0.095 R)
• M43: 81,231,045 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 909.3

Radius: 5.1

Gravity: 34.96 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 10.23 AU - 11.11 AU

Year: 22161 Days

Day: 17.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 89,541,754 km

• M1: 63,429 km (0.107 R)
• M2: 359,484 km (0.057 R)
• M3: 1,285,046 km (0.095 R)
• M4: 2,528,054 km (0.074 R)
• M5: 2,886,940 km (0.041 R)
• M6: 3,427,437 km (0.089 R)
• M7: 3,737,703 km (0.087 R)
• M8: 5,619,943 km (0.071 R)
• M9: 7,530,757 km (0.102 R)
• M10: 8,055,097 km (0.11 R)
• M11: 8,217,112 km (0.098 R)
• M12: 8,381,370 km (0.097 R)
• M13: 12,285,276 km (0.027 R)
• M14: 12,790,468 km (0.12 R)
• M15: 14,548,094 km (0.042 R)
• M16: 14,950,362 km (0.098 R)
• M17: 17,977,176 km (0.118 R)
• M18: 18,347,132 km (0.117 R)
• M19: 19,102,302 km (0.103 R)
• M20: 19,487,516 km (0.03 R)
• M21: 22,119,092 km (0.093 R)
• M22: 22,437,287 km (0.027 R)
• M23: 24,523,130 km (0.063 R)
• M24: 27,460,036 km (0.035 R)
• M25: 29,842,980 km (0.056 R)
• M26: 31,283,608 km (0.107 R)
• M27: 38,266,836 km (0.111 R)
• M28: 41,072,544 km (0.101 R)
• M29: 41,714,169 km (0.102 R)
• M30: 52,531,442 km (0.105 R)
• M31: 54,820,589 km (0.069 R)
• M32: 58,579,684 km (0.119 R)
• M33: 62,085,660 km (0.09 R)
• M34: 68,834,319 km (0.114 R)
• M35: 71,803,986 km (0.103 R)
• M36: 78,242,678 km (0.102 R)
• M37: 79,972,628 km (0.07 R)
• M38: 80,221,858 km (0.071 R)
• M39: 80,721,814 km (0.119 R)
• M40: 83,252,711 km (0.097 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 10,613 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit