🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.42 AU - 0.68 AU

Year: 268 Days

Day: 30.8 Hours

Environment

Temp: -118 °C

Axial Tilt: 49.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.54 AU - 0.68 AU

Year: 313 Days

Day: 20.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,982,946 km

• M1: 416,630 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.1

Radius: 11.5

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.62 AU - 0.76 AU

Year: 376 Days

Day: 9.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,982,946 km

• M1: 143,016 km (0.031 R)
• M2: 692,638 km (0.061 R)
• M3: 1,075,160 km (0.06 R)
• M4: 1,481,019 km (0.111 R)
• M5: 1,854,565 km (0.069 R)
• M6: 2,522,220 km (0.117 R)
• M7: 3,062,568 km (0.114 R)
• M8: 3,691,028 km (0.09 R)
• M9: 4,526,682 km (0.066 R)
• M10: 5,115,798 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.5

Radius: 8.6

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.91 AU - 1.13 AU

Year: 676 Days

Day: 12.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,982,946 km

• M1: 107,112 km (0.111 R)
• M2: 400,324 km (0.104 R)
• M3: 800,648 km (0.116 R)
• M4: 1,111,811 km (0.057 R)
• M5: 1,636,451 km (0.094 R)
• M6: 1,969,905 km (0.025 R)
• M7: 3,088,149 km (0.102 R)
• M8: 3,357,874 km (0.094 R)
• M9: 4,155,380 km (0.099 R)
• M10: 5,091,414 km (0.069 R)
• M11: 5,581,048 km (0.046 R)
• M12: 6,549,694 km (0.107 R)
• M13: 6,846,047 km (0.091 R)
• M14: 7,173,367 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.3

Radius: 14.8

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.97 AU - 1.47 AU

Year: 884 Days

Day: 12.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,982,946 km

• M1: 193,131 km (0.07 R)
• M2: 1,015,770 km (0.059 R)
• M3: 1,755,232 km (0.119 R)
• M4: 2,233,347 km (0.057 R)
• M5: 3,181,199 km (0.067 R)
• M6: 3,879,970 km (0.118 R)
• M7: 4,903,220 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121

Radius: 12

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.13 AU - 3.35 AU

Year: 3826 Days

Day: 7.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,982,946 km

• M1: 150,047 km (0.09 R)
• M2: 547,079 km (0.071 R)
• M3: 1,094,757 km (0.098 R)
• M4: 1,671,307 km (0.033 R)
• M5: 2,612,128 km (0.04 R)
• M6: 3,395,572 km (0.095 R)
• M7: 4,386,210 km (0.113 R)
• M8: 6,137,103 km (0.1 R)
• M9: 6,652,169 km (0.104 R)
• M10: 7,574,888 km (0.071 R)
• M11: 8,139,321 km (0.11 R)
• M12: 10,271,240 km (0.1 R)
• M13: 11,502,879 km (0.077 R)
• M14: 12,791,216 km (0.068 R)
• M15: 13,389,458 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.9

Radius: 10.1

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.16 AU - 3.9 AU

Year: 4351 Days

Day: 12.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,982,946 km

• M1: 127,158 km (0.094 R)
• M2: 487,539 km (0.12 R)
• M3: 1,097,001 km (0.108 R)
• M4: 1,589,178 km (0.059 R)
• M5: 2,493,198 km (0.072 R)
• M6: 3,496,701 km (0.079 R)
• M7: 4,090,305 km (0.105 R)
• M8: 4,931,943 km (0.046 R)
• M9: 6,249,451 km (0.11 R)
• M10: 7,787,916 km (0.066 R)
• M11: 9,523,400 km (0.106 R)
• M12: 9,857,004 km (0.107 R)
• M13: 10,241,620 km (0.075 R)
• M14: 10,636,259 km (0.055 R)
• M15: 11,132,475 km (0.083 R)
• M16: 15,502,229 km (0.114 R)
• M17: 17,099,934 km (0.113 R)
• M18: 21,462,657 km (0.074 R)
• M19: 24,829,806 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.6

Radius: 8.6

Gravity: 11.93 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4.77 AU - 6.07 AU

Year: 8278 Days

Day: 9.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,982,946 km

• M1: 106,962 km (0.112 R)
• M2: 513,869 km (0.083 R)
• M3: 815,159 km (0.077 R)
• M4: 1,202,767 km (0.084 R)
• M5: 1,513,781 km (0.054 R)
• M6: 3,315,238 km (0.119 R)
• M7: 4,839,641 km (0.065 R)
• M8: 6,192,454 km (0.109 R)
• M9: 13,966,607 km (0.095 R)
• M10: 17,807,233 km (0.042 R)
• M11: 20,806,969 km (0.107 R)
• M12: 21,877,492 km (0.084 R)
• M13: 23,683,587 km (0.05 R)
• M14: 25,587,070 km (0.091 R)
• M15: 39,191,949 km (0.081 R)
• M16: 39,813,678 km (0.115 R)
• M17: 43,550,035 km (0.106 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 17,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit