🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.75 AU - 1.01 AU

Year: 314 Days

Day: 14.3 Hours

Environment

Temp: 35 °C

Axial Tilt: 37.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.95 AU - 1.05 AU

Year: 381 Days

Day: 30.7 Hours

Environment

Temp: 11 °C

Axial Tilt: 4.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.76 AU - 2.86 AU

Year: 1337 Days

Day: 37.5 Hours

Environment

Temp: -99 °C

Axial Tilt: 78.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 92,954,786 km

• M1: 39,793 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.5

Radius: 13.6

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.37 AU - 5.55 AU

Year: 4206 Days

Day: 6.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 92,954,786 km

• M1: 169,195 km (0.104 R)
• M2: 645,964 km (0.118 R)
• M3: 1,552,826 km (0.109 R)
• M4: 2,113,818 km (0.068 R)
• M5: 2,991,209 km (0.05 R)
• M6: 3,442,247 km (0.11 R)
• M7: 4,533,115 km (0.057 R)
• M8: 5,408,861 km (0.065 R)
• M9: 6,268,899 km (0.115 R)
• M10: 7,014,495 km (0.112 R)
• M11: 8,643,915 km (0.1 R)
• M12: 9,905,025 km (0.092 R)
• M13: 12,046,369 km (0.117 R)
• M14: 12,489,178 km (0.045 R)
• M15: 16,077,882 km (0.087 R)
• M16: 16,615,536 km (0.078 R)
• M17: 17,288,727 km (0.086 R)
• M18: 17,726,600 km (0.107 R)
• M19: 19,552,741 km (0.103 R)
• M20: 22,970,304 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.8

Radius: 13.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.28 AU - 5.44 AU

Year: 4725 Days

Day: 13.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 92,954,786 km

• M1: 171,738 km (0.116 R)
• M2: 796,459 km (0.082 R)
• M3: 1,441,525 km (0.08 R)
• M4: 2,560,368 km (0.112 R)
• M5: 3,160,105 km (0.088 R)
• M6: 3,852,744 km (0.079 R)
• M7: 4,751,079 km (0.081 R)
• M8: 6,135,457 km (0.055 R)
• M9: 6,580,661 km (0.043 R)
• M10: 7,477,650 km (0.101 R)
• M11: 11,039,126 km (0.036 R)
• M12: 12,346,761 km (0.04 R)
• M13: 13,447,801 km (0.057 R)
• M14: 15,506,866 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590

Radius: 13.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 4.37 AU - 7.11 AU

Year: 5237 Days

Day: 9.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 172.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 92,954,786 km

• M1: 167,550 km (0.107 R)
• M2: 672,592 km (0.046 R)
• M3: 1,105,229 km (0.103 R)
• M4: 1,707,959 km (0.119 R)
• M5: 2,509,205 km (0.072 R)
• M6: 3,983,791 km (0.089 R)
• M7: 4,405,807 km (0.07 R)
• M8: 4,988,790 km (0.097 R)
• M9: 5,885,629 km (0.09 R)
• M10: 8,146,502 km (0.097 R)
• M11: 10,446,719 km (0.091 R)
• M12: 10,891,174 km (0.111 R)
• M13: 13,565,236 km (0.117 R)
• M14: 14,202,373 km (0.092 R)
• M15: 15,139,005 km (0.117 R)
• M16: 16,234,062 km (0.09 R)
• M17: 16,710,681 km (0.054 R)
• M18: 19,301,865 km (0.069 R)
• M19: 20,176,714 km (0.081 R)
• M20: 22,442,523 km (0.104 R)
• M21: 24,482,440 km (0.102 R)
• M22: 26,725,660 km (0.114 R)
• M23: 27,307,296 km (0.093 R)
• M24: 28,323,814 km (0.082 R)
• M25: 29,629,953 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.7

Radius: 12.6

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 7.7 AU - 8.3 AU

Year: 8617 Days

Day: 5.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 92,954,786 km

• M1: 157,078 km (0.075 R)
• M2: 648,507 km (0.101 R)
• M3: 1,107,174 km (0.1 R)
• M4: 1,511,537 km (0.109 R)
• M5: 1,907,223 km (0.098 R)
• M6: 2,654,016 km (0.104 R)
• M7: 3,239,542 km (0.098 R)
• M8: 4,171,088 km (0.054 R)
• M9: 5,242,508 km (0.025 R)
• M10: 6,169,117 km (0.083 R)
• M11: 7,557,385 km (0.113 R)
• M12: 8,828,369 km (0.069 R)
• M13: 9,374,999 km (0.088 R)
• M14: 10,187,914 km (0.086 R)
• M15: 10,892,071 km (0.117 R)
• M16: 11,309,001 km (0.082 R)
• M17: 12,567,268 km (0.118 R)
• M18: 13,026,235 km (0.076 R)
• M19: 16,902,465 km (0.059 R)
• M20: 17,818,303 km (0.09 R)
• M21: 19,825,757 km (0.111 R)
• M22: 20,764,633 km (0.113 R)
• M23: 21,569,619 km (0.096 R)
• M24: 32,059,123 km (0.054 R)
• M25: 35,584,546 km (0.11 R)
• M26: 37,087,855 km (0.098 R)
• M27: 38,033,763 km (0.115 R)
• M28: 38,995,527 km (0.106 R)
• M29: 40,593,233 km (0.092 R)
• M30: 43,787,446 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 705.2

Radius: 4.5

Gravity: 34.82 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 13.9 AU - 16.18 AU

Year: 22211 Days

Day: 15.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 92,954,786 km

• M1: 56,099 km (0.119 R)
• M2: 254,017 km (0.087 R)
• M3: 399,576 km (0.043 R)
• M4: 594,352 km (0.109 R)
• M5: 829,371 km (0.057 R)
• M6: 1,453,643 km (0.09 R)
• M7: 2,415,108 km (0.118 R)
• M8: 3,526,022 km (0.118 R)
• M9: 3,739,648 km (0.117 R)
• M10: 4,718,167 km (0.118 R)
• M11: 5,246,846 km (0.118 R)
• M12: 7,459,249 km (0.064 R)
• M13: 8,175,224 km (0.11 R)
• M14: 8,604,421 km (0.115 R)
• M15: 9,507,393 km (0.12 R)
• M16: 10,849,885 km (0.088 R)
• M17: 11,767,219 km (0.107 R)
• M18: 12,453,275 km (0.057 R)
• M19: 13,020,999 km (0.094 R)
• M20: 13,311,219 km (0.074 R)
• M21: 14,361,096 km (0.06 R)
• M22: 14,985,219 km (0.077 R)
• M23: 17,929,604 km (0.106 R)
• M24: 20,448,383 km (0.106 R)
• M25: 22,667,518 km (0.073 R)
• M26: 28,297,335 km (0.106 R)
• M27: 30,025,938 km (0.106 R)
• M28: 37,498,950 km (0.038 R)
• M29: 38,382,176 km (0.059 R)
• M30: 38,530,727 km (0.1 R)
• M31: 43,007,443 km (0.082 R)
• M32: 44,464,227 km (0.048 R)
• M33: 46,121,173 km (0.104 R)
• M34: 46,964,756 km (0.114 R)
• M35: 47,134,699 km (0.051 R)
• M36: 51,880,242 km (0.071 R)
• M37: 56,934,406 km (0.094 R)
• M38: 65,010,148 km (0.109 R)
• M39: 77,550,190 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 647.7

Radius: 8

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 15.95 AU - 18.35 AU

Year: 27045 Days

Day: 24.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 92,954,786 km

• M1: 101,727 km (0.082 R)
• M2: 516,711 km (0.066 R)
• M3: 1,084,136 km (0.087 R)
• M4: 1,457,532 km (0.117 R)
• M5: 1,976,038 km (0.098 R)
• M6: 2,256,085 km (0.115 R)
• M7: 4,215,369 km (0.075 R)
• M8: 4,910,251 km (0.054 R)
• M9: 8,523,787 km (0.098 R)
• M10: 10,125,382 km (0.106 R)
• M11: 11,709,175 km (0.088 R)
• M12: 14,785,805 km (0.09 R)
• M13: 16,034,498 km (0.087 R)
• M14: 17,172,340 km (0.03 R)
• M15: 21,319,342 km (0.097 R)
• M16: 27,414,109 km (0.11 R)
• M17: 28,531,306 km (0.111 R)
• M18: 36,618,417 km (0.096 R)
• M19: 39,516,278 km (0.101 R)
• M20: 39,987,361 km (0.053 R)
• M21: 42,235,668 km (0.03 R)
• M22: 43,390,713 km (0.12 R)
• M23: 46,109,804 km (0.108 R)
• M24: 52,260,969 km (0.093 R)
• M25: 54,362,520 km (0.111 R)
• M26: 57,518,885 km (0.091 R)
• M27: 58,124,009 km (0.103 R)
• M28: 61,213,504 km (0.082 R)
• M29: 66,381,512 km (0.111 R)
• M30: 72,769,491 km (0.063 R)
• M31: 73,951,763 km (0.079 R)
• M32: 77,575,322 km (0.054 R)
• M33: 84,913,098 km (0.093 R)
• M34: 88,615,495 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.1

Radius: 5.2

Gravity: 19.64 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 14.83 AU - 22.47 AU

Year: 30670 Days

Day: 20.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 92,954,786 km

• M1: 65,973 km (0.107 R)
• M2: 365,767 km (0.065 R)
• M3: 796,758 km (0.035 R)
• M4: 1,165,667 km (0.118 R)
• M5: 1,397,543 km (0.099 R)
• M6: 2,831,888 km (0.059 R)
• M7: 3,846,012 km (0.092 R)
• M8: 12,386,704 km (0.066 R)
• M9: 14,050,980 km (0.059 R)
• M10: 17,357,991 km (0.088 R)
• M11: 20,942,206 km (0.094 R)
• M12: 30,579,899 km (0.081 R)
• M13: 32,199,894 km (0.098 R)
• M14: 34,304,138 km (0.118 R)
• M15: 39,096,207 km (0.119 R)
• M16: 41,814,550 km (0.107 R)
• M17: 46,211,829 km (0.053 R)
• M18: 71,224,145 km (0.087 R)
• M19: 72,869,871 km (0.106 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 15,666 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit