🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

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: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.53 AU - 0.57 AU

Year: 259 Days

Day: 19.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,171,764 km

• M1: 135,984 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.9

Radius: 8.6

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.05 AU - 1.35 AU

Year: 836 Days

Day: 7.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,171,764 km

• M1: 107,262 km (0.112 R)
• M2: 487,091 km (0.065 R)
• M3: 827,875 km (0.115 R)
• M4: 1,538,764 km (0.053 R)
• M5: 2,116,810 km (0.091 R)
• M6: 2,385,936 km (0.093 R)
• M7: 3,148,138 km (0.053 R)
• M8: 4,017,152 km (0.107 R)
• M9: 4,772,022 km (0.111 R)
• M10: 5,388,366 km (0.091 R)
• M11: 5,696,388 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.4

Radius: 13

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.13 AU - 1.63 AU

Year: 1031 Days

Day: 11.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,171,764 km

• M1: 161,715 km (0.09 R)
• M2: 609,312 km (0.103 R)
• M3: 1,052,720 km (0.032 R)
• M4: 2,180,239 km (0.052 R)
• M5: 3,742,340 km (0.07 R)
• M6: 4,632,597 km (0.108 R)
• M7: 5,274,821 km (0.092 R)
• M8: 7,564,416 km (0.063 R)
• M9: 8,676,976 km (0.103 R)
• M10: 9,685,265 km (0.117 R)
• M11: 10,642,093 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.5

Radius: 10.6

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.53 AU - 1.71 AU

Year: 1311 Days

Day: 12.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 112.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,171,764 km

• M1: 132,245 km (0.079 R)
• M2: 569,818 km (0.065 R)
• M3: 1,056,311 km (0.057 R)
• M4: 1,570,179 km (0.081 R)
• M5: 2,315,326 km (0.118 R)
• M6: 2,722,980 km (0.109 R)
• M7: 3,092,038 km (0.111 R)
• M8: 7,793,451 km (0.084 R)
• M9: 9,962,620 km (0.107 R)
• M10: 10,845,846 km (0.094 R)
• M11: 11,887,645 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.5

Radius: 13

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 4.01 AU - 6.53 AU

Year: 7692 Days

Day: 6.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,171,764 km

• M1: 163,810 km (0.063 R)
• M2: 636,389 km (0.085 R)
• M3: 1,095,056 km (0.092 R)
• M4: 1,499,719 km (0.103 R)
• M5: 2,354,371 km (0.091 R)
• M6: 2,892,475 km (0.069 R)
• M7: 4,821,988 km (0.067 R)
• M8: 5,429,056 km (0.063 R)
• M9: 7,762,035 km (0.065 R)
• M10: 8,743,098 km (0.084 R)
• M11: 9,416,288 km (0.055 R)
• M12: 13,217,720 km (0.11 R)
• M13: 14,004,754 km (0.12 R)
• M14: 15,190,766 km (0.098 R)
• M15: 20,416,369 km (0.027 R)
• M16: 21,535,361 km (0.073 R)
• M17: 21,939,874 km (0.103 R)
• M18: 24,039,331 km (0.034 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.5

Radius: 13.3

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.3 AU - 6.6 AU

Year: 9228 Days

Day: 11.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,171,764 km

• M1: 165,455 km (0.038 R)
• M2: 711,936 km (0.111 R)
• M3: 1,400,386 km (0.086 R)
• M4: 1,830,779 km (0.092 R)
• M5: 2,351,080 km (0.028 R)
• M6: 2,880,357 km (0.102 R)
• M7: 3,653,778 km (0.077 R)
• M8: 4,785,486 km (0.072 R)
• M9: 6,475,344 km (0.053 R)
• M10: 7,286,164 km (0.096 R)
• M11: 8,384,362 km (0.12 R)
• M12: 9,630,812 km (0.108 R)
• M13: 11,867,749 km (0.118 R)
• M14: 14,165,572 km (0.088 R)
• M15: 16,627,654 km (0.113 R)
• M16: 17,406,759 km (0.069 R)
• M17: 18,398,743 km (0.027 R)
• M18: 28,071,891 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 342.4

Radius: 6

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 6.96 AU - 8.64 AU

Year: 13851 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,171,764 km

• M1: 74,649 km (0.115 R)
• M2: 310,565 km (0.066 R)
• M3: 656,286 km (0.096 R)
• M4: 1,077,703 km (0.113 R)
• M5: 1,298,510 km (0.056 R)
• M6: 1,621,043 km (0.118 R)
• M7: 1,945,969 km (0.074 R)
• M8: 2,563,360 km (0.079 R)
• M9: 3,209,622 km (0.084 R)
• M10: 3,546,218 km (0.085 R)
• M11: 4,375,139 km (0.059 R)
• M12: 5,293,820 km (0.104 R)
• M13: 5,763,856 km (0.087 R)
• M14: 7,220,640 km (0.035 R)
• M15: 7,714,164 km (0.117 R)
• M16: 10,422,035 km (0.116 R)
• M17: 11,052,141 km (0.038 R)
• M18: 13,397,237 km (0.025 R)
• M19: 16,192,623 km (0.102 R)
• M20: 18,208,155 km (0.041 R)
• M21: 24,328,204 km (0.117 R)
• M22: 30,512,879 km (0.081 R)
• M23: 33,008,920 km (0.078 R)
• M24: 39,397,646 km (0.091 R)
• M25: 42,615,796 km (0.091 R)
• M26: 47,267,691 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 666.1

Radius: 7.3

Gravity: 12.5 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 8.71 AU - 12.75 AU

Year: 22348 Days

Day: 15.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 81,171,764 km

• M1: 90,806 km (0.04 R)
• M2: 322,982 km (0.034 R)
• M3: 620,981 km (0.066 R)
• M4: 942,467 km (0.086 R)
• M5: 1,170,155 km (0.109 R)
• M6: 1,483,263 km (0.085 R)
• M7: 1,722,470 km (0.102 R)
• M8: 2,130,274 km (0.09 R)
• M9: 2,368,733 km (0.105 R)
• M10: 2,772,647 km (0.051 R)
• M11: 3,004,524 km (0.077 R)
• M12: 4,646,061 km (0.113 R)
• M13: 7,092,136 km (0.052 R)
• M14: 8,671,141 km (0.116 R)
• M15: 9,226,897 km (0.083 R)
• M16: 10,846,294 km (0.117 R)
• M17: 12,093,641 km (0.047 R)
• M18: 13,000,504 km (0.102 R)
• M19: 14,406,275 km (0.087 R)
• M20: 18,045,842 km (0.077 R)
• M21: 20,268,417 km (0.101 R)
• M22: 21,847,722 km (0.084 R)
• M23: 33,482,397 km (0.048 R)
• M24: 35,965,123 km (0.082 R)
• M25: 37,251,366 km (0.114 R)
• M26: 39,915,255 km (0.106 R)
• M27: 48,319,663 km (0.064 R)
• M28: 52,932,364 km (0.059 R)
• M29: 56,292,332 km (0.053 R)
• M30: 58,414,229 km (0.115 R)
• M31: 59,593,808 km (0.086 R)
• M32: 63,847,174 km (0.051 R)
• M33: 70,711,024 km (0.073 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: 264 - 10,315 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit