🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.49 AU - 0.63 AU

Year: 271 Days

Day: 36.1 Hours

Environment

Temp: -126 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.2

Radius: 11.5

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.59 AU - 0.89 AU

Year: 411 Days

Day: 9 Hours

Environment

Temp: -150 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,600,624 km

• M1: 143,016 km (0.051 R)
• M2: 508,932 km (0.117 R)
• M3: 1,119,740 km (0.087 R)
• M4: 1,671,457 km (0.077 R)
• M5: 2,195,349 km (0.035 R)
• M6: 2,646,237 km (0.099 R)
• M7: 3,271,107 km (0.045 R)
• M8: 3,699,256 km (0.105 R)
• M9: 4,398,177 km (0.045 R)
• M10: 4,772,172 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.8

Radius: 10.4

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.82 AU - 0.86 AU

Year: 497 Days

Day: 11.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,600,624 km

• M1: 129,552 km (0.077 R)
• M2: 456,573 km (0.108 R)
• M3: 792,719 km (0.066 R)
• M4: 1,193,342 km (0.052 R)
• M5: 1,599,800 km (0.11 R)
• M6: 2,042,759 km (0.118 R)
• M7: 2,465,971 km (0.052 R)
• M8: 3,479,198 km (0.033 R)
• M9: 4,416,578 km (0.028 R)
• M10: 4,764,094 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.9

Radius: 12

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.88 AU - 3.46 AU

Year: 3644 Days

Day: 5.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,600,624 km

• M1: 149,299 km (0.112 R)
• M2: 625,768 km (0.12 R)
• M3: 1,570,030 km (0.088 R)
• M4: 2,844,005 km (0.064 R)
• M5: 4,022,836 km (0.1 R)
• M6: 5,034,716 km (0.12 R)
• M7: 5,699,230 km (0.113 R)
• M8: 8,559,990 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.9

Radius: 9.8

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 4.17 AU - 6.53 AU

Year: 7990 Days

Day: 11.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,600,624 km

• M1: 131,796 km (0.071 R)
• M2: 701,464 km (0.101 R)
• M3: 1,227,899 km (0.113 R)
• M4: 1,738,776 km (0.09 R)
• M5: 3,396,919 km (0.062 R)
• M6: 3,765,079 km (0.062 R)
• M7: 4,159,718 km (0.095 R)
• M8: 4,699,318 km (0.057 R)
• M9: 6,714,700 km (0.083 R)
• M10: 7,955,316 km (0.09 R)
• M11: 8,386,457 km (0.056 R)
• M12: 10,068,984 km (0.058 R)
• M13: 13,057,501 km (0.057 R)
• M14: 15,306,106 km (0.111 R)
• M15: 18,316,314 km (0.114 R)
• M16: 19,920,752 km (0.099 R)
• M17: 21,451,437 km (0.073 R)
• M18: 22,287,689 km (0.114 R)
• M19: 22,799,912 km (0.083 R)
• M20: 26,039,305 km (0.1 R)
• M21: 26,417,189 km (0.071 R)
• M22: 27,280,817 km (0.051 R)
• M23: 28,561,375 km (0.106 R)
• M24: 29,675,879 km (0.106 R)
• M25: 32,316,282 km (0.117 R)
• M26: 38,546,584 km (0.109 R)
• M27: 39,532,883 km (0.093 R)
• M28: 42,201,709 km (0.076 R)
• M29: 45,396,371 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847

Radius: 8.3

Gravity: 12.29 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.47 AU - 6.73 AU

Year: 8557 Days

Day: 7 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 65,600,624 km

• M1: 105,766 km (0.075 R)
• M2: 441,015 km (0.038 R)
• M3: 711,338 km (0.101 R)
• M4: 1,003,802 km (0.056 R)
• M5: 1,303,147 km (0.061 R)
• M6: 1,676,843 km (0.037 R)
• M7: 2,602,105 km (0.084 R)
• M8: 2,911,474 km (0.099 R)
• M9: 4,044,378 km (0.065 R)
• M10: 4,375,738 km (0.061 R)
• M11: 4,725,049 km (0.062 R)
• M12: 5,647,020 km (0.08 R)
• M13: 6,132,765 km (0.028 R)
• M14: 7,069,397 km (0.069 R)
• M15: 7,348,098 km (0.09 R)
• M16: 8,359,529 km (0.119 R)
• M17: 11,236,745 km (0.045 R)
• M18: 11,727,127 km (0.105 R)
• M19: 12,118,176 km (0.103 R)
• M20: 13,894,052 km (0.091 R)
• M21: 15,701,942 km (0.075 R)
• M22: 18,699,734 km (0.085 R)
• M23: 19,233,948 km (0.115 R)
• M24: 26,366,774 km (0.09 R)
• M25: 26,653,254 km (0.108 R)
• M26: 28,216,552 km (0.094 R)
• M27: 33,718,762 km (0.106 R)
• M28: 34,510,134 km (0.065 R)
• M29: 36,247,564 km (0.114 R)
• M30: 40,021,470 km (0.12 R)
• M31: 45,404,300 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 657.6

Radius: 3.5

Gravity: 53.68 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 7.54 AU - 9.7 AU

Year: 16341 Days

Day: 21.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 65,600,624 km

• M1: 46,824 km (0.032 R)
• M2: 194,328 km (0.059 R)
• M3: 312,061 km (0.077 R)
• M4: 537,206 km (0.119 R)
• M5: 722,707 km (0.113 R)
• M6: 2,642,946 km (0.036 R)
• M7: 3,102,211 km (0.096 R)
• M8: 3,284,122 km (0.111 R)
• M9: 3,697,910 km (0.105 R)
• M10: 3,872,790 km (0.082 R)
• M11: 5,255,822 km (0.051 R)
• M12: 6,634,965 km (0.084 R)
• M13: 8,091,599 km (0.116 R)
• M14: 8,587,217 km (0.058 R)
• M15: 8,739,807 km (0.102 R)
• M16: 9,638,740 km (0.078 R)
• M17: 11,010,254 km (0.119 R)
• M18: 11,618,219 km (0.088 R)
• M19: 13,371,058 km (0.073 R)
• M20: 14,417,345 km (0.085 R)
• M21: 15,819,376 km (0.068 R)
• M22: 17,881,433 km (0.107 R)
• M23: 18,635,108 km (0.097 R)
• M24: 18,805,350 km (0.064 R)
• M25: 19,409,576 km (0.114 R)
• M26: 22,819,958 km (0.088 R)
• M27: 25,025,929 km (0.084 R)
• M28: 28,145,343 km (0.044 R)
• M29: 28,594,885 km (0.094 R)
• M30: 35,271,737 km (0.098 R)
• M31: 36,454,757 km (0.101 R)
• M32: 38,209,690 km (0.083 R)
• M33: 40,588,595 km (0.059 R)
• M34: 41,306,665 km (0.118 R)
• M35: 42,916,039 km (0.079 R)
• M36: 44,263,467 km (0.097 R)
• M37: 48,314,128 km (0.067 R)
• M38: 60,432,603 km (0.083 R)
• M39: 60,805,700 km (0.098 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 17,801 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit