🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.6 AU - 0.74 AU

Year: 354 Days

Day: 39.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.2

Radius: 8.3

Gravity: 11.21 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.96 AU - 1.32 AU

Year: 786 Days

Day: 8.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,084,628 km

• M1: 103,223 km (0.075 R)
• M2: 471,682 km (0.063 R)
• M3: 868,864 km (0.114 R)
• M4: 1,187,657 km (0.103 R)
• M5: 1,859,801 km (0.029 R)
• M6: 2,398,503 km (0.116 R)
• M7: 2,716,847 km (0.116 R)
• M8: 3,495,055 km (0.11 R)
• M9: 3,905,851 km (0.098 R)
• M10: 4,266,980 km (0.095 R)
• M11: 4,633,196 km (0.054 R)
• M12: 5,680,530 km (0.119 R)
• M13: 7,500,538 km (0.101 R)
• M14: 7,813,347 km (0.08 R)
• M15: 8,362,671 km (0.088 R)
• M16: 9,098,842 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.9

Radius: 14.7

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.63 AU - 1.67 AU

Year: 1368 Days

Day: 11.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 84,084,628 km

• M1: 184,454 km (0.093 R)
• M2: 770,279 km (0.112 R)
• M3: 3,388,242 km (0.099 R)
• M4: 4,866,718 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.9

Radius: 12

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.43 AU - 3.91 AU

Year: 3644 Days

Day: 11.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,084,628 km

• M1: 149,299 km (0.091 R)
• M2: 683,213 km (0.104 R)
• M3: 1,740,870 km (0.113 R)
• M4: 2,238,134 km (0.043 R)
• M5: 3,750,419 km (0.079 R)
• M6: 4,836,050 km (0.03 R)
• M7: 5,303,544 km (0.092 R)
• M8: 5,716,135 km (0.095 R)
• M9: 6,120,498 km (0.073 R)
• M10: 8,773,317 km (0.111 R)
• M11: 9,313,066 km (0.097 R)
• M12: 10,080,802 km (0.053 R)
• M13: 11,243,926 km (0.083 R)
• M14: 11,650,832 km (0.029 R)
• M15: 13,835,409 km (0.061 R)
• M16: 14,355,860 km (0.051 R)
• M17: 17,817,854 km (0.107 R)
• M18: 20,169,383 km (0.115 R)
• M19: 21,316,201 km (0.061 R)
• M20: 21,801,047 km (0.056 R)
• M21: 22,720,775 km (0.09 R)
• M22: 23,153,861 km (0.073 R)
• M23: 24,260,885 km (0.048 R)
• M24: 25,094,744 km (0.063 R)
• M25: 25,480,108 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.8

Radius: 14.1

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.06 AU - 3.52 AU

Year: 3853 Days

Day: 9.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,084,628 km

• M1: 178,769 km (0.085 R)
• M2: 851,212 km (0.053 R)
• M3: 1,373,159 km (0.107 R)
• M4: 1,950,307 km (0.036 R)
• M5: 2,622,600 km (0.094 R)
• M6: 3,329,899 km (0.112 R)
• M7: 4,116,933 km (0.059 R)
• M8: 4,675,981 km (0.089 R)
• M9: 5,890,267 km (0.045 R)
• M10: 6,479,981 km (0.086 R)
• M11: 8,899,129 km (0.111 R)
• M12: 13,453,187 km (0.077 R)
• M13: 13,959,875 km (0.058 R)
• M14: 16,457,262 km (0.119 R)
• M15: 18,361,643 km (0.108 R)
• M16: 18,859,804 km (0.117 R)
• M17: 19,624,099 km (0.03 R)
• M18: 20,079,475 km (0.109 R)
• M19: 20,876,383 km (0.095 R)
• M20: 23,466,969 km (0.09 R)
• M21: 25,257,955 km (0.114 R)
• M22: 26,265,197 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.6

Radius: 11.3

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 4.55 AU - 4.83 AU

Year: 6558 Days

Day: 7.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,084,628 km

• M1: 190,588 km (0.093 R)
• M2: 684,859 km (0.115 R)
• M3: 1,425,369 km (0.074 R)
• M4: 1,805,048 km (0.046 R)
• M5: 2,195,947 km (0.059 R)
• M6: 3,036,837 km (0.052 R)
• M7: 3,891,489 km (0.089 R)
• M8: 5,348,573 km (0.056 R)
• M9: 6,189,313 km (0.097 R)
• M10: 7,115,922 km (0.083 R)
• M11: 8,329,909 km (0.115 R)
• M12: 11,234,501 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 270.7

Radius: 8

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 7.09 AU - 10.53 AU

Year: 16884 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 84,084,628 km

• M1: 99,483 km (0.095 R)
• M2: 509,830 km (0.079 R)
• M3: 1,112,260 km (0.074 R)
• M4: 1,655,300 km (0.1 R)
• M5: 2,021,516 km (0.097 R)
• M6: 2,345,246 km (0.118 R)
• M7: 2,830,841 km (0.049 R)
• M8: 3,237,597 km (0.072 R)
• M9: 3,866,806 km (0.062 R)
• M10: 4,140,420 km (0.047 R)
• M11: 5,501,761 km (0.102 R)
• M12: 5,955,491 km (0.089 R)
• M13: 6,284,158 km (0.109 R)
• M14: 8,157,123 km (0.087 R)
• M15: 9,029,578 km (0.101 R)
• M16: 9,811,376 km (0.056 R)
• M17: 10,322,403 km (0.081 R)
• M18: 12,664,657 km (0.042 R)
• M19: 13,643,326 km (0.051 R)
• M20: 15,476,049 km (0.07 R)
• M21: 16,098,376 km (0.118 R)
• M22: 19,383,695 km (0.028 R)
• M23: 20,188,233 km (0.073 R)
• M24: 21,949,897 km (0.066 R)
• M25: 22,296,665 km (0.066 R)
• M26: 23,539,524 km (0.106 R)
• M27: 25,299,094 km (0.102 R)
• M28: 26,946,167 km (0.109 R)
• M29: 28,663,700 km (0.104 R)
• M30: 29,601,828 km (0.079 R)
• M31: 31,101,697 km (0.069 R)
• M32: 33,331,154 km (0.095 R)
• M33: 37,362,367 km (0.07 R)
• M34: 47,524,102 km (0.043 R)
• M35: 48,543,462 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.4

Radius: 3.5

Gravity: 81.58 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 8.72 AU - 10.5 AU

Year: 19235 Days

Day: 21.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 84,084,628 km

• M1: 46,076 km (0.076 R)
• M2: 178,171 km (0.069 R)
• M3: 344,524 km (0.086 R)
• M4: 1,325,437 km (0.101 R)
• M5: 1,968,558 km (0.119 R)
• M6: 2,245,314 km (0.065 R)
• M7: 2,849,391 km (0.093 R)
• M8: 3,524,675 km (0.076 R)
• M9: 3,899,568 km (0.097 R)
• M10: 4,546,728 km (0.098 R)
• M11: 7,153,770 km (0.063 R)
• M12: 9,050,372 km (0.073 R)
• M13: 9,222,110 km (0.084 R)
• M14: 9,750,340 km (0.064 R)
• M15: 12,697,418 km (0.03 R)
• M16: 15,444,035 km (0.026 R)
• M17: 18,287,293 km (0.118 R)
• M18: 18,653,957 km (0.108 R)
• M19: 19,783,570 km (0.051 R)
• M20: 19,976,103 km (0.072 R)
• M21: 20,365,057 km (0.106 R)
• M22: 21,460,563 km (0.108 R)
• M23: 23,016,979 km (0.086 R)
• M24: 23,877,017 km (0.07 R)
• M25: 24,981,947 km (0.115 R)
• M26: 27,293,234 km (0.086 R)
• M27: 38,861,338 km (0.07 R)
• M28: 39,012,133 km (0.094 R)
• M29: 46,042,933 km (0.06 R)
• M30: 48,620,056 km (0.102 R)
• M31: 52,387,379 km (0.052 R)
• M32: 52,571,385 km (0.05 R)
• M33: 56,731,402 km (0.033 R)
• M34: 57,706,631 km (0.045 R)
• M35: 60,496,182 km (0.076 R)
• M36: 66,774,057 km (0.072 R)
• M37: 70,966,537 km (0.112 R)
• M38: 74,630,339 km (0.026 R)
• M39: 75,800,643 km (0.09 R)
• M40: 76,272,175 km (0.107 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 17,777 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit