🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.46 AU - 0.76 AU

Year: 303 Days

Day: 16.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.5

Radius: 14.5

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.55 AU - 0.81 AU

Year: 357 Days

Day: 8.2 Hours

Environment

Temp: -129 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 92,578,395 km

• M1: 180,714 km (0.098 R)
• M2: 711,039 km (0.08 R)
• M3: 1,256,772 km (0.066 R)
• M4: 2,551,840 km (0.065 R)
• M5: 3,491,913 km (0.094 R)
• M6: 4,181,560 km (0.084 R)
• M7: 5,522,106 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.9

Radius: 9.7

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.79 AU - 0.81 AU

Year: 455 Days

Day: 14.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,578,395 km

• M1: 120,576 km (0.081 R)
• M2: 463,903 km (0.095 R)
• M3: 765,642 km (0.06 R)
• M4: 1,276,369 km (0.083 R)
• M5: 1,782,159 km (0.101 R)
• M6: 2,146,879 km (0.051 R)
• M7: 2,920,300 km (0.109 R)
• M8: 3,419,359 km (0.108 R)
• M9: 4,095,092 km (0.094 R)
• M10: 4,443,506 km (0.092 R)
• M11: 4,918,479 km (0.097 R)
• M12: 5,677,389 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.9

Radius: 8.1

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.79 AU - 2.17 AU

Year: 1771 Days

Day: 12 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 92,578,395 km

• M1: 100,679 km (0.102 R)
• M2: 758,312 km (0.07 R)
• M3: 1,022,801 km (0.099 R)
• M4: 2,975,352 km (0.098 R)
• M5: 3,280,681 km (0.1 R)
• M6: 3,954,769 km (0.111 R)
• M7: 4,374,840 km (0.081 R)
• M8: 6,533,986 km (0.105 R)
• M9: 7,476,902 km (0.101 R)
• M10: 9,125,769 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.6

Radius: 11.5

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 4.93 AU - 7.05 AU

Year: 9321 Days

Day: 7.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 92,578,395 km

• M1: 143,016 km (0.107 R)
• M2: 573,109 km (0.042 R)
• M3: 954,734 km (0.076 R)
• M4: 1,373,907 km (0.084 R)
• M5: 1,917,097 km (0.108 R)
• M6: 2,718,792 km (0.088 R)
• M7: 6,272,489 km (0.108 R)
• M8: 9,990,445 km (0.109 R)
• M9: 10,388,226 km (0.109 R)
• M10: 12,030,960 km (0.043 R)
• M11: 14,650,867 km (0.12 R)
• M12: 16,641,716 km (0.089 R)
• M13: 19,723,282 km (0.051 R)
• M14: 20,271,559 km (0.081 R)
• M15: 22,312,822 km (0.117 R)
• M16: 23,426,877 km (0.118 R)
• M17: 24,939,162 km (0.073 R)
• M18: 25,765,540 km (0.107 R)
• M19: 27,473,200 km (0.095 R)
• M20: 30,071,266 km (0.045 R)
• M21: 31,749,156 km (0.11 R)
• M22: 33,933,135 km (0.114 R)
• M23: 37,394,232 km (0.096 R)
• M24: 42,107,462 km (0.064 R)
• M25: 43,279,113 km (0.089 R)
• M26: 43,939,288 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 792.2

Radius: 5.8

Gravity: 23.55 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 6.64 AU - 9.96 AU

Year: 15204 Days

Day: 17.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 92,578,395 km

• M1: 76,744 km (0.115 R)
• M2: 329,265 km (0.119 R)
• M3: 542,442 km (0.086 R)
• M4: 979,268 km (0.108 R)
• M5: 1,161,029 km (0.108 R)
• M6: 1,439,132 km (0.058 R)
• M7: 1,957,488 km (0.111 R)
• M8: 2,169,020 km (0.109 R)
• M9: 2,896,963 km (0.112 R)
• M10: 3,224,433 km (0.102 R)
• M11: 3,894,033 km (0.098 R)
• M12: 4,293,309 km (0.035 R)
• M13: 4,652,045 km (0.112 R)
• M14: 4,995,522 km (0.069 R)
• M15: 5,542,003 km (0.098 R)
• M16: 8,681,314 km (0.089 R)
• M17: 10,134,358 km (0.091 R)
• M18: 10,362,495 km (0.118 R)
• M19: 12,771,320 km (0.083 R)
• M20: 16,530,565 km (0.118 R)
• M21: 17,903,724 km (0.07 R)
• M22: 19,880,061 km (0.071 R)
• M23: 20,418,613 km (0.114 R)
• M24: 21,059,191 km (0.072 R)
• M25: 22,188,356 km (0.097 R)
• M26: 26,029,581 km (0.086 R)
• M27: 26,782,507 km (0.116 R)
• M28: 27,329,137 km (0.075 R)
• M29: 33,714,423 km (0.072 R)
• M30: 36,178,300 km (0.066 R)
• M31: 37,250,618 km (0.098 R)
• M32: 42,192,284 km (0.074 R)
• M33: 42,932,046 km (0.038 R)
• M34: 45,822,277 km (0.086 R)
• M35: 46,290,219 km (0.074 R)
• M36: 49,001,979 km (0.052 R)
• M37: 57,226,870 km (0.107 R)
• M38: 61,285,909 km (0.098 R)
• M39: 63,385,515 km (0.094 R)
• M40: 63,772,375 km (0.043 R)
• M41: 64,550,883 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 880.7

Radius: 7.6

Gravity: 15.25 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 8.62 AU - 13.68 AU

Year: 23673 Days

Day: 18.4 Hours

Environment

Temp: -242 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 92,578,395 km

• M1: 94,546 km (0.111 R)
• M2: 759,359 km (0.113 R)
• M3: 1,133,952 km (0.091 R)
• M4: 1,539,512 km (0.066 R)
• M5: 2,081,505 km (0.119 R)
• M6: 2,957,700 km (0.103 R)
• M7: 3,634,181 km (0.096 R)
• M8: 5,837,758 km (0.115 R)
• M9: 6,329,636 km (0.116 R)
• M10: 6,609,533 km (0.112 R)
• M11: 8,921,568 km (0.052 R)
• M12: 9,214,481 km (0.092 R)
• M13: 9,635,300 km (0.103 R)
• M14: 10,450,907 km (0.118 R)
• M15: 10,776,582 km (0.12 R)
• M16: 12,076,139 km (0.089 R)
• M17: 13,553,866 km (0.057 R)
• M18: 15,231,158 km (0.061 R)
• M19: 16,336,237 km (0.06 R)
• M20: 18,139,191 km (0.099 R)
• M21: 19,477,643 km (0.08 R)
• M22: 22,782,110 km (0.068 R)
• M23: 23,774,842 km (0.098 R)
• M24: 24,681,106 km (0.053 R)
• M25: 28,918,615 km (0.098 R)
• M26: 29,820,540 km (0.112 R)
• M27: 33,616,886 km (0.089 R)
• M28: 48,160,043 km (0.083 R)
• M29: 56,291,884 km (0.076 R)
• M30: 56,891,173 km (0.111 R)
• M31: 60,995,390 km (0.105 R)
• M32: 65,954,260 km (0.101 R)
• M33: 71,876,092 km (0.081 R)
• M34: 81,153,703 km (0.102 R)
• M35: 88,209,786 km (0.075 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 15,793 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit