🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.58 AU - 0.58 AU

Year: 285 Days

Day: 13.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.4

Radius: 14

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.88 AU - 0.9 AU

Year: 542 Days

Day: 14.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,981,726 km

• M1: 175,179 km (0.059 R)
• M2: 942,317 km (0.055 R)
• M3: 1,443,320 km (0.102 R)
• M4: 2,125,187 km (0.032 R)
• M5: 2,573,831 km (0.09 R)
• M6: 3,098,471 km (0.088 R)
• M7: 4,085,069 km (0.059 R)
• M8: 5,393,602 km (0.077 R)
• M9: 6,241,522 km (0.072 R)
• M10: 6,718,291 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.5

Radius: 12.6

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.99 AU - 1.07 AU

Year: 675 Days

Day: 10.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,981,726 km

• M1: 156,928 km (0.102 R)
• M2: 655,837 km (0.086 R)
• M3: 1,047,634 km (0.102 R)
• M4: 1,604,437 km (0.082 R)
• M5: 2,355,119 km (0.115 R)
• M6: 3,921,858 km (0.068 R)
• M7: 4,742,103 km (0.107 R)
• M8: 5,425,616 km (0.115 R)
• M9: 6,097,759 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.5

Radius: 14.4

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.55 AU - 4.89 AU

Year: 5597 Days

Day: 8 Hours

Environment

Temp: -216 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,981,726 km

• M1: 179,069 km (0.083 R)
• M2: 724,054 km (0.112 R)
• M3: 1,508,096 km (0.103 R)
• M4: 2,039,617 km (0.058 R)
• M5: 2,528,054 km (0.091 R)
• M6: 3,389,888 km (0.1 R)
• M7: 4,014,608 km (0.119 R)
• M8: 7,284,818 km (0.079 R)
• M9: 8,910,348 km (0.054 R)
• M10: 9,724,610 km (0.05 R)
• M11: 10,721,829 km (0.106 R)
• M12: 11,268,609 km (0.103 R)
• M13: 14,017,171 km (0.075 R)
• M14: 20,249,717 km (0.088 R)
• M15: 23,432,412 km (0.119 R)
• M16: 27,018,273 km (0.045 R)
• M17: 28,204,584 km (0.087 R)
• M18: 29,602,726 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.7

Radius: 10.8

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.16 AU - 6.1 AU

Year: 7502 Days

Day: 12 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,981,726 km

• M1: 136,284 km (0.03 R)
• M2: 489,933 km (0.102 R)
• M3: 851,212 km (0.081 R)
• M4: 1,212,790 km (0.085 R)
• M5: 1,629,869 km (0.083 R)
• M6: 2,470,758 km (0.094 R)
• M7: 2,887,239 km (0.034 R)
• M8: 3,350,544 km (0.118 R)
• M9: 3,863,066 km (0.103 R)
• M10: 4,209,534 km (0.116 R)
• M11: 4,703,955 km (0.066 R)
• M12: 5,264,648 km (0.097 R)
• M13: 6,142,339 km (0.115 R)
• M14: 7,251,906 km (0.103 R)
• M15: 7,602,414 km (0.062 R)
• M16: 9,322,790 km (0.115 R)
• M17: 13,464,556 km (0.117 R)
• M18: 14,103,339 km (0.036 R)
• M19: 15,327,050 km (0.095 R)
• M20: 16,741,348 km (0.113 R)
• M21: 18,240,768 km (0.075 R)
• M22: 22,304,444 km (0.041 R)
• M23: 24,117,421 km (0.103 R)
• M24: 25,139,623 km (0.108 R)
• M25: 26,436,936 km (0.068 R)
• M26: 28,552,549 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.4

Radius: 14.2

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.56 AU - 7.04 AU

Year: 9019 Days

Day: 9.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,981,726 km

• M1: 202,855 km (0.094 R)
• M2: 778,956 km (0.101 R)
• M3: 1,248,544 km (0.044 R)
• M4: 3,644,952 km (0.12 R)
• M5: 4,380,375 km (0.114 R)
• M6: 5,404,522 km (0.12 R)
• M7: 7,676,764 km (0.11 R)
• M8: 8,574,052 km (0.099 R)
• M9: 11,310,796 km (0.072 R)
• M10: 11,799,532 km (0.097 R)
• M11: 13,411,150 km (0.043 R)
• M12: 14,458,784 km (0.068 R)
• M13: 15,035,184 km (0.05 R)
• M14: 16,029,861 km (0.057 R)
• M15: 19,976,851 km (0.117 R)
• M16: 29,324,175 km (0.066 R)
• M17: 42,259,454 km (0.117 R)
• M18: 43,175,292 km (0.117 R)
• M19: 45,318,132 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 955.8

Radius: 7.3

Gravity: 17.94 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 6.45 AU - 10.25 AU

Year: 15579 Days

Day: 21 Hours

Environment

Temp: -227 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 71,981,726 km

• M1: 90,806 km (0.088 R)
• M2: 632,051 km (0.091 R)
• M3: 1,296,864 km (0.082 R)
• M4: 1,772,585 km (0.099 R)
• M5: 2,316,523 km (0.119 R)
• M6: 2,558,722 km (0.096 R)
• M7: 3,444,940 km (0.086 R)
• M8: 4,902,023 km (0.056 R)
• M9: 5,766,848 km (0.059 R)
• M10: 6,340,855 km (0.089 R)
• M11: 6,729,511 km (0.092 R)
• M12: 7,942,450 km (0.061 R)
• M13: 8,497,009 km (0.077 R)
• M14: 8,969,739 km (0.054 R)
• M15: 9,515,472 km (0.111 R)
• M16: 10,553,232 km (0.094 R)
• M17: 12,248,475 km (0.04 R)
• M18: 13,757,918 km (0.1 R)
• M19: 15,310,744 km (0.053 R)
• M20: 15,541,723 km (0.068 R)
• M21: 17,811,272 km (0.115 R)
• M22: 18,152,654 km (0.077 R)
• M23: 21,712,934 km (0.104 R)
• M24: 25,281,591 km (0.1 R)
• M25: 26,039,454 km (0.072 R)
• M26: 32,402,600 km (0.083 R)
• M27: 32,783,625 km (0.049 R)
• M28: 33,296,447 km (0.093 R)
• M29: 36,213,157 km (0.072 R)
• M30: 41,345,860 km (0.108 R)
• M31: 44,709,867 km (0.091 R)
• M32: 45,340,571 km (0.112 R)
• M33: 50,601,031 km (0.104 R)
• M34: 56,071,376 km (0.057 R)
• M35: 58,478,107 km (0.041 R)
• M36: 59,232,379 km (0.107 R)
• M37: 62,903,511 km (0.086 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 14,712 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit