🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.48 AU - 0.58 AU

Year: 245 Days

Day: 12.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.5

Radius: 11.1

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.87 AU - 0.97 AU

Year: 561 Days

Day: 11 Hours

Environment

Temp: -159 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,362,863 km

• M1: 138,079 km (0.06 R)
• M2: 505,342 km (0.102 R)
• M3: 907,760 km (0.082 R)
• M4: 1,361,191 km (0.083 R)
• M5: 1,833,771 km (0.066 R)
• M6: 2,548,250 km (0.111 R)
• M7: 3,124,950 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.2

Radius: 10.9

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.97 AU - 1.41 AU

Year: 825 Days

Day: 8.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,362,863 km

• M1: 135,536 km (0.057 R)
• M2: 783,743 km (0.033 R)
• M3: 1,289,384 km (0.117 R)
• M4: 1,807,890 km (0.049 R)
• M5: 3,012,153 km (0.103 R)
• M6: 3,480,843 km (0.074 R)
• M7: 3,950,132 km (0.111 R)
• M8: 4,376,037 km (0.095 R)
• M9: 5,882,787 km (0.076 R)
• M10: 6,573,480 km (0.082 R)
• M11: 7,936,915 km (0.086 R)
• M12: 9,196,230 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.9

Radius: 13.9

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.35 AU - 1.73 AU

Year: 1215 Days

Day: 13.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,362,863 km

• M1: 173,085 km (0.096 R)
• M2: 622,776 km (0.094 R)
• M3: 1,076,805 km (0.047 R)
• M4: 1,700,180 km (0.075 R)
• M5: 2,167,673 km (0.059 R)
• M6: 2,671,070 km (0.069 R)
• M7: 3,582,420 km (0.069 R)
• M8: 4,171,387 km (0.112 R)
• M9: 5,136,293 km (0.111 R)
• M10: 5,629,517 km (0.054 R)
• M11: 7,690,079 km (0.057 R)
• M12: 8,145,155 km (0.11 R)
• M13: 11,437,954 km (0.095 R)
• M14: 11,890,787 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.3

Radius: 13.9

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.52 AU - 1.98 AU

Year: 1472 Days

Day: 12 Hours

Environment

Temp: -183 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,362,863 km

• M1: 172,935 km (0.099 R)
• M2: 612,005 km (0.119 R)
• M3: 1,069,026 km (0.114 R)
• M4: 2,072,678 km (0.103 R)
• M5: 2,542,715 km (0.101 R)
• M6: 3,084,558 km (0.119 R)
• M7: 4,215,967 km (0.041 R)
• M8: 4,736,119 km (0.072 R)
• M9: 5,277,214 km (0.111 R)
• M10: 5,906,274 km (0.028 R)
• M11: 6,361,201 km (0.117 R)
• M12: 7,207,476 km (0.046 R)
• M13: 7,699,952 km (0.069 R)
• M14: 9,833,517 km (0.12 R)
• M15: 10,406,177 km (0.092 R)
• M16: 11,471,464 km (0.119 R)
• M17: 12,030,661 km (0.099 R)
• M18: 14,281,211 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.4

Radius: 8.5

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.92 AU - 2.62 AU

Year: 2175 Days

Day: 10.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,362,863 km

• M1: 105,766 km (0.075 R)
• M2: 391,498 km (0.041 R)
• M3: 692,189 km (0.04 R)
• M4: 1,306,737 km (0.056 R)
• M5: 1,827,188 km (0.065 R)
• M6: 2,107,535 km (0.066 R)
• M7: 2,543,912 km (0.106 R)
• M8: 3,233,408 km (0.087 R)
• M9: 4,259,500 km (0.069 R)
• M10: 4,857,592 km (0.076 R)
• M11: 6,102,097 km (0.11 R)
• M12: 6,710,212 km (0.091 R)
• M13: 7,492,609 km (0.075 R)
• M14: 8,392,740 km (0.105 R)
• M15: 8,838,691 km (0.114 R)
• M16: 9,585,035 km (0.072 R)
• M17: 10,474,245 km (0.12 R)
• M18: 10,748,009 km (0.11 R)
• M19: 12,492,170 km (0.095 R)
• M20: 13,471,737 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.4

Radius: 3.2

Gravity: 73.67 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.9 AU - 7.62 AU

Year: 9959 Days

Day: 15.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 49,362,863 km

• M1: 39,943 km (0.035 R)
• M2: 172,187 km (0.113 R)
• M3: 688,150 km (0.08 R)
• M4: 1,305,989 km (0.115 R)
• M5: 2,030,193 km (0.085 R)
• M6: 2,341,057 km (0.088 R)
• M7: 2,458,043 km (0.096 R)
• M8: 4,594,599 km (0.102 R)
• M9: 5,325,834 km (0.106 R)
• M10: 6,131,418 km (0.034 R)
• M11: 8,201,254 km (0.08 R)
• M12: 8,517,355 km (0.114 R)
• M13: 8,935,780 km (0.07 R)
• M14: 9,174,089 km (0.026 R)
• M15: 11,966,334 km (0.085 R)
• M16: 13,091,160 km (0.058 R)
• M17: 13,398,434 km (0.108 R)
• M18: 13,900,185 km (0.071 R)
• M19: 14,027,493 km (0.058 R)
• M20: 16,102,416 km (0.076 R)
• M21: 16,597,734 km (0.114 R)
• M22: 17,322,685 km (0.099 R)
• M23: 17,470,189 km (0.115 R)
• M24: 17,993,183 km (0.065 R)
• M25: 18,758,077 km (0.092 R)
• M26: 19,306,204 km (0.073 R)
• M27: 22,295,169 km (0.118 R)
• M28: 24,265,822 km (0.115 R)
• M29: 31,521,618 km (0.086 R)
• M30: 34,810,976 km (0.106 R)
• M31: 39,330,477 km (0.067 R)
• M32: 39,713,148 km (0.036 R)
• M33: 40,615,822 km (0.079 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 19,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit