🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

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: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.56 AU - 0.62 AU

Year: 293 Days

Day: 22.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 44.3 °

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: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.6 AU - 0.62 AU

Year: 308 Days

Day: 40.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 140.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.6

Radius: 9.9

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.77 AU - 0.97 AU

Year: 524 Days

Day: 5.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,743,934 km

• M1: 123,269 km (0.118 R)
• M2: 545,583 km (0.093 R)
• M3: 1,059,303 km (0.117 R)
• M4: 1,574,218 km (0.081 R)
• M5: 2,474,050 km (0.107 R)
• M6: 3,752,214 km (0.113 R)
• M7: 4,258,603 km (0.098 R)
• M8: 4,778,156 km (0.113 R)
• M9: 5,169,953 km (0.066 R)
• M10: 6,149,370 km (0.069 R)
• M11: 6,854,724 km (0.106 R)

Asteroid Belt

Center: 1.4 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.2

Radius: 13.4

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.57 AU - 2.27 AU

Year: 1718 Days

Day: 6.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,743,934 km

• M1: 166,652 km (0.097 R)
• M2: 584,628 km (0.038 R)
• M3: 1,019,659 km (0.115 R)
• M4: 1,568,534 km (0.053 R)
• M5: 2,177,696 km (0.093 R)
• M6: 2,983,281 km (0.071 R)
• M7: 3,878,923 km (0.049 R)
• M8: 5,145,868 km (0.073 R)
• M9: 5,798,264 km (0.08 R)
• M10: 6,720,984 km (0.118 R)
• M11: 7,659,561 km (0.06 R)
• M12: 8,314,051 km (0.118 R)
• M13: 9,610,616 km (0.1 R)
• M14: 10,050,284 km (0.116 R)
• M15: 10,635,361 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.7

Radius: 8

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.96 AU - 3.86 AU

Year: 4066 Days

Day: 8.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 40,743,934 km

• M1: 99,483 km (0.108 R)
• M2: 356,193 km (0.12 R)
• M3: 771,925 km (0.061 R)
• M4: 1,032,225 km (0.116 R)
• M5: 1,491,640 km (0.095 R)
• M6: 1,971,401 km (0.111 R)
• M7: 2,270,148 km (0.111 R)
• M8: 2,599,263 km (0.084 R)
• M9: 3,143,201 km (0.095 R)
• M10: 3,512,708 km (0.109 R)
• M11: 4,020,742 km (0.116 R)
• M12: 4,504,691 km (0.116 R)
• M13: 4,823,185 km (0.092 R)
• M14: 6,648,279 km (0.059 R)
• M15: 6,997,440 km (0.093 R)
• M16: 7,358,570 km (0.062 R)
• M17: 8,665,905 km (0.113 R)
• M18: 9,044,388 km (0.09 R)
• M19: 10,414,106 km (0.047 R)
• M20: 11,060,369 km (0.06 R)
• M21: 11,326,354 km (0.099 R)
• M22: 12,528,223 km (0.059 R)
• M23: 13,711,094 km (0.117 R)
• M24: 15,733,806 km (0.114 R)
• M25: 16,411,784 km (0.104 R)
• M26: 17,705,207 km (0.079 R)
• M27: 19,835,930 km (0.054 R)
• M28: 20,693,873 km (0.09 R)
• M29: 21,233,922 km (0.11 R)
• M30: 22,982,721 km (0.091 R)
• M31: 24,076,880 km (0.109 R)
• M32: 25,743,849 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 14.8

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.45 AU - 4.65 AU

Year: 5263 Days

Day: 14.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,743,934 km

• M1: 188,045 km (0.076 R)
• M2: 865,274 km (0.061 R)
• M3: 1,492,089 km (0.111 R)
• M4: 2,158,996 km (0.075 R)
• M5: 3,071,244 km (0.099 R)
• M6: 3,532,903 km (0.077 R)
• M7: 4,356,739 km (0.099 R)
• M8: 8,572,108 km (0.09 R)
• M9: 9,351,512 km (0.106 R)
• M10: 10,688,169 km (0.089 R)
• M11: 11,465,480 km (0.086 R)
• M12: 12,679,467 km (0.111 R)
• M13: 14,907,577 km (0.064 R)
• M14: 16,406,548 km (0.078 R)
• M15: 18,811,035 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.8

Radius: 14.4

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.83 AU - 5.47 AU

Year: 7546 Days

Day: 6.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,743,934 km

• M1: 193,580 km (0.112 R)
• M2: 685,607 km (0.109 R)
• M3: 1,375,852 km (0.093 R)
• M4: 2,267,305 km (0.079 R)
• M5: 2,814,385 km (0.096 R)
• M6: 3,518,093 km (0.116 R)
• M7: 4,499,156 km (0.095 R)
• M8: 5,784,650 km (0.09 R)
• M9: 6,252,443 km (0.08 R)
• M10: 7,039,029 km (0.109 R)
• M11: 8,134,833 km (0.114 R)
• M12: 10,082,597 km (0.086 R)
• M13: 10,565,649 km (0.107 R)
• M14: 11,216,699 km (0.084 R)
• M15: 18,842,899 km (0.041 R)
• M16: 21,896,940 km (0.118 R)
• M17: 23,039,867 km (0.025 R)
• M18: 23,541,619 km (0.043 R)
• M19: 29,358,283 km (0.115 R)
• M20: 34,303,540 km (0.108 R)
• M21: 40,259,031 km (0.116 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 10,920 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit