🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.56 AU - 0.62 AU

Year: 297 Days

Day: 37.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.5

Radius: 10.6

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.72 AU - 1.02 AU

Year: 532 Days

Day: 11.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,193,288 km

• M1: 132,095 km (0.07 R)
• M2: 496,216 km (0.061 R)
• M3: 827,276 km (0.109 R)
• M4: 1,320,650 km (0.079 R)
• M5: 1,773,632 km (0.097 R)
• M6: 2,201,632 km (0.102 R)
• M7: 2,565,155 km (0.094 R)
• M8: 3,289,059 km (0.081 R)
• M9: 3,632,535 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.3

Radius: 11.8

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.93 AU - 1.27 AU

Year: 757 Days

Day: 6.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,193,288 km

• M1: 146,756 km (0.08 R)
• M2: 580,440 km (0.095 R)
• M3: 995,275 km (0.114 R)
• M4: 1,495,530 km (0.117 R)
• M5: 2,091,677 km (0.09 R)
• M6: 3,159,956 km (0.051 R)
• M7: 4,376,635 km (0.078 R)
• M8: 4,892,748 km (0.102 R)
• M9: 5,391,507 km (0.091 R)
• M10: 6,130,222 km (0.102 R)
• M11: 7,187,878 km (0.082 R)
• M12: 8,676,228 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480

Radius: 8.9

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.13 AU - 2.53 AU

Year: 2333 Days

Day: 10.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,193,288 km

• M1: 110,702 km (0.115 R)
• M2: 395,537 km (0.049 R)
• M3: 827,575 km (0.09 R)
• M4: 1,332,169 km (0.1 R)
• M5: 1,640,191 km (0.077 R)
• M6: 3,157,113 km (0.119 R)
• M7: 3,486,229 km (0.076 R)
• M8: 4,390,698 km (0.11 R)
• M9: 4,717,718 km (0.079 R)
• M10: 5,083,036 km (0.087 R)
• M11: 5,894,754 km (0.068 R)
• M12: 6,551,788 km (0.101 R)
• M13: 6,871,030 km (0.106 R)
• M14: 9,207,300 km (0.109 R)
• M15: 10,518,077 km (0.059 R)
• M16: 11,407,586 km (0.053 R)
• M17: 13,591,116 km (0.116 R)
• M18: 15,239,236 km (0.115 R)
• M19: 15,848,698 km (0.077 R)
• M20: 16,135,327 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.4

Radius: 11

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.21 AU - 3.47 AU

Year: 3140 Days

Day: 5.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,193,288 km

• M1: 138,228 km (0.095 R)
• M2: 508,483 km (0.098 R)
• M3: 949,797 km (0.056 R)
• M4: 1,395,599 km (0.074 R)
• M5: 2,076,269 km (0.076 R)
• M6: 2,549,297 km (0.088 R)
• M7: 4,016,104 km (0.106 R)
• M8: 4,954,233 km (0.091 R)
• M9: 6,109,876 km (0.078 R)
• M10: 7,378,167 km (0.079 R)
• M11: 8,231,623 km (0.105 R)
• M12: 9,458,774 km (0.083 R)
• M13: 12,397,924 km (0.089 R)
• M14: 13,916,192 km (0.098 R)
• M15: 14,884,689 km (0.064 R)
• M16: 15,603,656 km (0.107 R)
• M17: 15,996,351 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17

Radius: 8.6

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.41 AU - 3.67 AU

Year: 3477 Days

Day: 11.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,193,288 km

• M1: 124,765 km (0.085 R)
• M2: 640,578 km (0.118 R)
• M3: 1,020,557 km (0.089 R)
• M4: 1,347,727 km (0.068 R)
• M5: 1,705,715 km (0.103 R)
• M6: 3,106,699 km (0.062 R)
• M7: 3,475,607 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.3

Radius: 15

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.08 AU - 6.56 AU

Year: 8050 Days

Day: 12.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,193,288 km

• M1: 204,051 km (0.097 R)
• M2: 767,736 km (0.071 R)
• M3: 2,116,062 km (0.117 R)
• M4: 3,783,779 km (0.11 R)
• M5: 5,747,101 km (0.117 R)
• M6: 7,212,413 km (0.117 R)
• M7: 8,278,447 km (0.111 R)
• M8: 9,089,866 km (0.059 R)
• M9: 11,326,204 km (0.037 R)
• M10: 12,655,232 km (0.087 R)
• M11: 15,622,206 km (0.093 R)
• M12: 18,027,291 km (0.105 R)
• M13: 20,516,750 km (0.08 R)
• M14: 26,896,201 km (0.107 R)
• M15: 35,031,782 km (0.096 R)
• M16: 37,267,223 km (0.104 R)
• M17: 39,715,093 km (0.099 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 14,083 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit