🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.52 AU - 0.72 AU

Year: 315 Days

Day: 25.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.9

Radius: 12.4

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.77 AU - 0.85 AU

Year: 471 Days

Day: 7.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,969,101 km

• M1: 154,834 km (0.092 R)
• M2: 572,212 km (0.073 R)
• M3: 1,021,604 km (0.102 R)
• M4: 1,547,740 km (0.045 R)
• M5: 1,957,339 km (0.09 R)
• M6: 2,345,096 km (0.105 R)
• M7: 3,025,019 km (0.105 R)
• M8: 3,536,194 km (0.048 R)
• M9: 5,079,596 km (0.043 R)
• M10: 5,735,134 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.9

Radius: 9.2

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.91 AU - 1.15 AU

Year: 675 Days

Day: 8.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,969,101 km

• M1: 114,742 km (0.05 R)
• M2: 942,766 km (0.071 R)
• M3: 1,480,720 km (0.102 R)
• M4: 2,062,655 km (0.079 R)
• M5: 2,454,602 km (0.105 R)
• M6: 2,828,148 km (0.09 R)
• M7: 3,324,513 km (0.106 R)
• M8: 4,426,003 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129

Radius: 13.8

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.2 AU - 1.24 AU

Year: 870 Days

Day: 12 Hours

Environment

Temp: -172 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,969,101 km

• M1: 171,888 km (0.085 R)
• M2: 680,072 km (0.086 R)
• M3: 1,659,639 km (0.107 R)
• M4: 2,688,573 km (0.083 R)
• M5: 4,292,113 km (0.1 R)
• M6: 5,012,725 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.2

Radius: 10.6

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.22 AU - 2.9 AU

Year: 2645 Days

Day: 12.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,969,101 km

• M1: 131,796 km (0.071 R)
• M2: 529,427 km (0.055 R)
• M3: 1,056,161 km (0.079 R)
• M4: 1,400,834 km (0.083 R)
• M5: 2,089,134 km (0.097 R)
• M6: 2,439,343 km (0.116 R)
• M7: 3,621,465 km (0.057 R)
• M8: 4,555,854 km (0.112 R)
• M9: 4,893,047 km (0.119 R)
• M10: 5,492,635 km (0.109 R)
• M11: 5,927,816 km (0.114 R)
• M12: 6,666,231 km (0.069 R)
• M13: 7,013,597 km (0.109 R)
• M14: 7,682,150 km (0.085 R)
• M15: 8,129,298 km (0.07 R)
• M16: 12,142,710 km (0.026 R)
• M17: 12,706,394 km (0.081 R)
• M18: 13,423,866 km (0.042 R)
• M19: 14,215,687 km (0.05 R)
• M20: 16,149,389 km (0.099 R)
• M21: 18,534,877 km (0.069 R)
• M22: 19,516,389 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.7

Radius: 14.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.67 AU - 3.77 AU

Year: 4633 Days

Day: 10.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,969,101 km

• M1: 182,809 km (0.074 R)
• M2: 643,271 km (0.093 R)
• M3: 1,182,571 km (0.061 R)
• M4: 1,726,958 km (0.098 R)
• M5: 2,439,941 km (0.11 R)
• M6: 2,946,480 km (0.108 R)
• M7: 3,937,865 km (0.114 R)
• M8: 6,129,324 km (0.034 R)
• M9: 7,772,058 km (0.077 R)
• M10: 8,820,440 km (0.044 R)
• M11: 9,692,296 km (0.082 R)
• M12: 10,799,021 km (0.101 R)
• M13: 11,420,601 km (0.053 R)
• M14: 14,062,798 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816

Radius: 14.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.87 AU - 4.79 AU

Year: 4840 Days

Day: 13.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,969,101 km

• M1: 199,414 km (0.116 R)
• M2: 990,338 km (0.101 R)
• M3: 2,116,511 km (0.085 R)
• M4: 3,135,272 km (0.098 R)
• M5: 3,713,318 km (0.102 R)
• M6: 4,924,463 km (0.106 R)
• M7: 9,590,121 km (0.111 R)
• M8: 10,323,450 km (0.108 R)
• M9: 10,863,349 km (0.049 R)
• M10: 12,852,103 km (0.113 R)
• M11: 13,583,935 km (0.075 R)
• M12: 17,795,116 km (0.076 R)
• M13: 19,305,904 km (0.088 R)
• M14: 19,919,704 km (0.074 R)
• M15: 21,402,967 km (0.09 R)
• M16: 23,186,922 km (0.081 R)
• M17: 30,305,237 km (0.079 R)
• M18: 30,949,256 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 727.4

Radius: 4.8

Gravity: 31.57 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.41 AU - 10.37 AU

Year: 17115 Days

Day: 18.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 69,969,101 km

• M1: 60,886 km (0.085 R)
• M2: 910,303 km (0.108 R)
• M3: 1,100,442 km (0.109 R)
• M4: 1,627,475 km (0.06 R)
• M5: 3,459,152 km (0.091 R)
• M6: 3,956,714 km (0.045 R)
• M7: 4,842,782 km (0.081 R)
• M8: 5,239,217 km (0.058 R)
• M9: 5,814,121 km (0.086 R)
• M10: 7,225,577 km (0.06 R)
• M11: 9,832,918 km (0.102 R)
• M12: 10,764,913 km (0.068 R)
• M13: 13,074,704 km (0.094 R)
• M14: 13,841,393 km (0.083 R)
• M15: 14,127,574 km (0.089 R)
• M16: 14,417,644 km (0.08 R)
• M17: 17,959,823 km (0.033 R)
• M18: 19,081,956 km (0.076 R)
• M19: 19,525,664 km (0.071 R)
• M20: 20,249,867 km (0.104 R)
• M21: 23,326,497 km (0.104 R)
• M22: 26,921,782 km (0.107 R)
• M23: 29,908,055 km (0.112 R)
• M24: 30,266,192 km (0.095 R)
• M25: 35,452,152 km (0.102 R)
• M26: 49,843,767 km (0.032 R)
• M27: 51,364,130 km (0.102 R)
• M28: 52,394,859 km (0.082 R)
• M29: 55,569,326 km (0.09 R)
• M30: 56,291,884 km (0.096 R)
• M31: 64,457,983 km (0.115 R)
• M32: 64,656,649 km (0.077 R)
• M33: 67,687,352 km (0.089 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: 309 - 17,047 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit