🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.39 AU - 0.63 AU

Year: 235 Days

Day: 42.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,411,698 km

• M1: 10,621 km (0.033 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700

Radius: 13.8

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.69 AU - 0.91 AU

Year: 462 Days

Day: 5.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,411,698 km

• M1: 171,589 km (0.086 R)
• M2: 779,405 km (0.057 R)
• M3: 1,250,339 km (0.027 R)
• M4: 2,494,245 km (0.111 R)
• M5: 3,348,449 km (0.047 R)
• M6: 3,910,040 km (0.116 R)
• M7: 4,361,526 km (0.109 R)
• M8: 5,603,637 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.8

Radius: 8.9

Gravity: 12.21 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.74 AU - 0.9 AU

Year: 479 Days

Day: 10.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,411,698 km

• M1: 110,852 km (0.065 R)
• M2: 554,410 km (0.096 R)
• M3: 868,864 km (0.114 R)
• M4: 1,357,152 km (0.111 R)
• M5: 1,865,635 km (0.103 R)
• M6: 2,998,989 km (0.083 R)
• M7: 3,554,595 km (0.084 R)
• M8: 4,647,258 km (0.054 R)
• M9: 5,001,954 km (0.05 R)
• M10: 5,409,309 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.2

Radius: 9.7

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.55 AU - 1.83 AU

Year: 1419 Days

Day: 11.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,411,698 km

• M1: 122,221 km (0.056 R)
• M2: 580,739 km (0.083 R)
• M3: 993,779 km (0.048 R)
• M4: 1,302,997 km (0.055 R)
• M5: 1,634,656 km (0.083 R)
• M6: 2,283,163 km (0.111 R)
• M7: 2,709,816 km (0.055 R)
• M8: 3,054,340 km (0.077 R)
• M9: 4,218,361 km (0.098 R)
• M10: 4,647,856 km (0.095 R)
• M11: 6,848,740 km (0.095 R)
• M12: 7,370,238 km (0.053 R)
• M13: 8,175,972 km (0.082 R)
• M14: 9,067,277 km (0.042 R)
• M15: 9,902,781 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.8

Radius: 10.6

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.22 AU - 2.88 AU

Year: 2629 Days

Day: 11.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,411,698 km

• M1: 134,339 km (0.064 R)
• M2: 664,963 km (0.112 R)
• M3: 1,051,673 km (0.105 R)
• M4: 1,546,393 km (0.117 R)
• M5: 2,091,677 km (0.049 R)
• M6: 2,617,215 km (0.119 R)
• M7: 3,411,879 km (0.112 R)
• M8: 3,815,344 km (0.102 R)
• M9: 4,305,128 km (0.075 R)
• M10: 5,627,124 km (0.112 R)
• M11: 6,357,910 km (0.073 R)
• M12: 6,946,577 km (0.086 R)
• M13: 7,869,895 km (0.076 R)
• M14: 8,636,435 km (0.069 R)
• M15: 9,514,574 km (0.045 R)
• M16: 10,822,060 km (0.101 R)
• M17: 12,061,179 km (0.096 R)
• M18: 12,620,226 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.2

Radius: 14

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 4.01 AU - 4.09 AU

Year: 5263 Days

Day: 8.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,411,698 km

• M1: 174,132 km (0.112 R)
• M2: 641,176 km (0.111 R)
• M3: 1,139,337 km (0.086 R)
• M4: 2,041,712 km (0.036 R)
• M5: 2,676,904 km (0.071 R)
• M6: 3,146,193 km (0.094 R)
• M7: 4,518,604 km (0.107 R)
• M8: 5,465,409 km (0.044 R)
• M9: 6,046,447 km (0.109 R)
• M10: 6,732,951 km (0.066 R)
• M11: 8,337,089 km (0.091 R)
• M12: 8,990,383 km (0.027 R)
• M13: 10,486,960 km (0.118 R)
• M14: 12,192,226 km (0.098 R)
• M15: 14,344,641 km (0.106 R)
• M16: 15,059,419 km (0.111 R)
• M17: 15,740,239 km (0.113 R)
• M18: 20,265,126 km (0.027 R)
• M19: 20,955,371 km (0.104 R)
• M20: 21,732,831 km (0.107 R)
• M21: 23,874,923 km (0.098 R)
• M22: 28,575,437 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.6

Radius: 3.2

Gravity: 75.55 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 8.48 AU - 8.8 AU

Year: 16398 Days

Day: 15.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 69,411,698 km

• M1: 40,990 km (0.112 R)
• M2: 150,944 km (0.114 R)
• M3: 500,704 km (0.101 R)
• M4: 628,760 km (0.111 R)
• M5: 998,865 km (0.078 R)
• M6: 1,482,515 km (0.101 R)
• M7: 2,008,052 km (0.087 R)
• M8: 2,187,420 km (0.089 R)
• M9: 2,377,559 km (0.103 R)
• M10: 2,578,469 km (0.109 R)
• M11: 2,839,218 km (0.094 R)
• M12: 3,876,530 km (0.093 R)
• M13: 4,060,685 km (0.102 R)
• M14: 4,479,559 km (0.056 R)
• M15: 6,111,821 km (0.092 R)
• M16: 7,196,256 km (0.108 R)
• M17: 8,974,077 km (0.037 R)
• M18: 13,159,377 km (0.075 R)
• M19: 13,366,121 km (0.119 R)
• M20: 14,579,060 km (0.098 R)
• M21: 15,554,738 km (0.104 R)
• M22: 16,493,165 km (0.103 R)
• M23: 16,976,366 km (0.097 R)
• M24: 17,221,408 km (0.09 R)
• M25: 18,140,088 km (0.046 R)
• M26: 19,356,020 km (0.11 R)
• M27: 19,713,259 km (0.058 R)
• M28: 25,503,595 km (0.114 R)
• M29: 25,824,931 km (0.037 R)
• M30: 26,366,625 km (0.089 R)
• M31: 26,585,486 km (0.109 R)
• M32: 31,341,651 km (0.094 R)
• M33: 33,725,942 km (0.048 R)
• M34: 36,093,628 km (0.119 R)
• M35: 40,572,139 km (0.092 R)
• M36: 42,492,677 km (0.104 R)
• M37: 43,857,009 km (0.114 R)
• M38: 45,879,124 km (0.107 R)
• M39: 64,535,773 km (0.069 R)
• M40: 66,944,150 km (0.113 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 147 - 14,314 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit