🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.48 AU - 0.68 AU

Year: 281 Days

Day: 44.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 25.8 °

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: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.54 AU - 0.68 AU

Year: 303 Days

Day: 21.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,197,917 km

• M1: 170,542 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32

Radius: 11.1

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.65 AU - 0.89 AU

Year: 430 Days

Day: 7 Hours

Environment

Temp: -153 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 63,197,917 km

• M1: 138,528 km (0.067 R)
• M2: 504,594 km (0.083 R)
• M3: 1,193,941 km (0.073 R)
• M4: 1,766,452 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.8

Radius: 10.5

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.85 AU - 1.01 AU

Year: 570 Days

Day: 7.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 63,197,917 km

• M1: 130,599 km (0.072 R)
• M2: 473,477 km (0.084 R)
• M3: 859,290 km (0.095 R)
• M4: 1,244,056 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.9

Radius: 10.7

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.32 AU - 2.84 AU

Year: 2635 Days

Day: 6.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 147.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,197,917 km

• M1: 133,292 km (0.085 R)
• M2: 488,587 km (0.03 R)
• M3: 887,863 km (0.089 R)
• M4: 1,306,588 km (0.089 R)
• M5: 1,714,242 km (0.083 R)
• M6: 2,732,106 km (0.078 R)
• M7: 3,408,587 km (0.043 R)
• M8: 4,034,954 km (0.097 R)
• M9: 5,517,768 km (0.106 R)
• M10: 6,462,927 km (0.091 R)
• M11: 7,017,038 km (0.1 R)
• M12: 7,483,035 km (0.063 R)
• M13: 8,574,501 km (0.069 R)
• M14: 9,278,509 km (0.083 R)
• M15: 9,627,072 km (0.117 R)
• M16: 10,801,864 km (0.115 R)
• M17: 11,266,216 km (0.067 R)
• M18: 14,291,683 km (0.092 R)
• M19: 14,946,473 km (0.103 R)
• M20: 15,670,227 km (0.079 R)
• M21: 16,467,734 km (0.049 R)
• M22: 17,239,659 km (0.12 R)
• M23: 17,714,333 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.2

Radius: 14.3

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.55 AU - 5.75 AU

Year: 6375 Days

Day: 8.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,197,917 km

• M1: 185,501 km (0.099 R)
• M2: 732,581 km (0.091 R)
• M3: 1,389,615 km (0.044 R)
• M4: 1,884,933 km (0.112 R)
• M5: 2,359,757 km (0.094 R)
• M6: 3,864,861 km (0.033 R)
• M7: 4,372,746 km (0.062 R)
• M8: 5,070,470 km (0.1 R)
• M9: 5,939,335 km (0.114 R)
• M10: 7,350,491 km (0.114 R)
• M11: 8,506,135 km (0.057 R)
• M12: 10,828,043 km (0.05 R)
• M13: 11,636,620 km (0.113 R)
• M14: 12,322,975 km (0.053 R)
• M15: 13,374,498 km (0.065 R)
• M16: 14,186,964 km (0.083 R)
• M17: 15,467,073 km (0.044 R)
• M18: 17,224,699 km (0.106 R)
• M19: 20,218,152 km (0.056 R)
• M20: 22,639,244 km (0.116 R)
• M21: 23,710,066 km (0.105 R)
• M22: 24,300,379 km (0.108 R)
• M23: 25,073,950 km (0.099 R)
• M24: 26,309,628 km (0.111 R)
• M25: 28,427,485 km (0.049 R)
• M26: 33,314,548 km (0.071 R)
• M27: 38,851,315 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.3

Radius: 13.4

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.23 AU - 5.91 AU

Year: 8358 Days

Day: 12 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,197,917 km

• M1: 166,652 km (0.08 R)
• M2: 632,649 km (0.095 R)
• M3: 1,629,719 km (0.118 R)
• M4: 2,335,672 km (0.056 R)
• M5: 2,760,978 km (0.083 R)
• M6: 3,894,781 km (0.116 R)
• M7: 5,863,040 km (0.096 R)
• M8: 6,768,256 km (0.107 R)
• M9: 7,724,486 km (0.108 R)
• M10: 12,918,225 km (0.099 R)
• M11: 13,787,389 km (0.114 R)
• M12: 15,006,312 km (0.057 R)
• M13: 15,901,655 km (0.088 R)
• M14: 16,764,536 km (0.108 R)
• M15: 19,317,573 km (0.086 R)
• M16: 20,609,051 km (0.078 R)
• M17: 22,447,011 km (0.08 R)
• M18: 27,563,856 km (0.047 R)
• M19: 29,199,560 km (0.114 R)
• M20: 31,308,441 km (0.105 R)
• M21: 35,940,140 km (0.113 R)
• M22: 37,541,735 km (0.092 R)
• M23: 39,429,810 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 679.2

Radius: 4.5

Gravity: 33.54 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.71 AU - 9.89 AU

Year: 15204 Days

Day: 20.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 83.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,197,917 km

• M1: 57,146 km (0.086 R)
• M2: 197,918 km (0.063 R)
• M3: 412,142 km (0.086 R)
• M4: 1,115,252 km (0.1 R)
• M5: 1,676,992 km (0.056 R)
• M6: 1,936,993 km (0.114 R)
• M7: 2,671,369 km (0.069 R)
• M8: 3,631,189 km (0.066 R)
• M9: 4,601,631 km (0.113 R)
• M10: 5,809,783 km (0.098 R)
• M11: 7,039,029 km (0.119 R)
• M12: 8,091,599 km (0.1 R)
• M13: 8,236,260 km (0.052 R)
• M14: 9,403,273 km (0.114 R)
• M15: 10,850,334 km (0.076 R)
• M16: 11,811,051 km (0.103 R)
• M17: 16,530,714 km (0.11 R)
• M18: 17,316,402 km (0.032 R)
• M19: 18,374,508 km (0.112 R)
• M20: 18,624,785 km (0.106 R)
• M21: 20,173,722 km (0.11 R)
• M22: 25,025,181 km (0.112 R)
• M23: 27,555,479 km (0.051 R)
• M24: 28,546,714 km (0.114 R)
• M25: 29,447,593 km (0.074 R)
• M26: 29,675,730 km (0.095 R)
• M27: 30,251,233 km (0.11 R)
• M28: 32,022,322 km (0.075 R)
• M29: 40,077,868 km (0.119 R)
• M30: 43,379,493 km (0.071 R)
• M31: 46,086,466 km (0.105 R)
• M32: 56,269,743 km (0.063 R)
• M33: 58,220,200 km (0.116 R)
• M34: 59,849,321 km (0.101 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 544 - 12,174 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit