🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.55 AU - 0.69 AU

Year: 315 Days

Day: 44.6 Hours

Environment

Temp: -121 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.1

Radius: 14.2

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.01 AU - 1.19 AU

Year: 745 Days

Day: 6.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,591,239 km

• M1: 176,675 km (0.117 R)
• M2: 1,103,434 km (0.083 R)
• M3: 1,595,012 km (0.097 R)
• M4: 2,204,923 km (0.082 R)
• M5: 3,277,989 km (0.099 R)
• M6: 4,009,821 km (0.097 R)
• M7: 4,848,617 km (0.117 R)
• M8: 5,722,418 km (0.112 R)
• M9: 6,482,375 km (0.09 R)
• M10: 8,770,774 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.1

Radius: 14.6

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.26 AU - 1.7 AU

Year: 1163 Days

Day: 8.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,591,239 km

• M1: 182,061 km (0.099 R)
• M2: 709,094 km (0.108 R)
• M3: 1,513,631 km (0.094 R)
• M4: 2,196,994 km (0.095 R)
• M5: 2,738,987 km (0.11 R)
• M6: 3,397,816 km (0.108 R)
• M7: 4,051,858 km (0.119 R)
• M8: 4,617,787 km (0.098 R)
• M9: 5,217,824 km (0.067 R)
• M10: 5,731,244 km (0.111 R)
• M11: 8,359,978 km (0.039 R)
• M12: 8,852,604 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.3

Radius: 12

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.29 AU - 2.53 AU

Year: 2416 Days

Day: 10.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,591,239 km

• M1: 149,299 km (0.077 R)
• M2: 1,033,572 km (0.066 R)
• M3: 1,785,151 km (0.112 R)
• M4: 2,317,121 km (0.114 R)
• M5: 4,073,550 km (0.1 R)
• M6: 6,151,016 km (0.113 R)
• M7: 6,701,386 km (0.099 R)
• M8: 7,105,899 km (0.093 R)
• M9: 8,720,209 km (0.06 R)
• M10: 10,261,068 km (0.089 R)
• M11: 11,276,687 km (0.12 R)
• M12: 12,401,065 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.9

Radius: 13.3

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.35 AU - 5.49 AU

Year: 6000 Days

Day: 13.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 73,591,239 km

• M1: 168,746 km (0.119 R)
• M2: 772,673 km (0.105 R)
• M3: 1,212,491 km (0.086 R)
• M4: 1,942,080 km (0.115 R)
• M5: 2,408,227 km (0.036 R)
• M6: 3,261,084 km (0.064 R)
• M7: 4,001,294 km (0.037 R)
• M8: 5,533,476 km (0.101 R)
• M9: 5,979,726 km (0.119 R)
• M10: 7,239,191 km (0.097 R)
• M11: 10,421,137 km (0.102 R)
• M12: 11,154,616 km (0.088 R)
• M13: 12,507,429 km (0.11 R)
• M14: 15,474,404 km (0.104 R)
• M15: 18,527,995 km (0.105 R)
• M16: 19,313,833 km (0.087 R)
• M17: 20,270,960 km (0.054 R)
• M18: 23,415,358 km (0.092 R)
• M19: 26,332,816 km (0.052 R)
• M20: 28,344,757 km (0.072 R)
• M21: 29,101,274 km (0.086 R)
• M22: 30,065,731 km (0.059 R)
• M23: 33,295,549 km (0.074 R)
• M24: 35,210,552 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.8

Radius: 9.6

Gravity: 9.76 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.11 AU - 5.35 AU

Year: 6642 Days

Day: 14.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 73,591,239 km

• M1: 119,379 km (0.089 R)
• M2: 483,201 km (0.114 R)
• M3: 852,558 km (0.08 R)
• M4: 1,260,960 km (0.11 R)
• M5: 1,590,674 km (0.032 R)
• M6: 2,845,352 km (0.117 R)
• M7: 3,156,515 km (0.09 R)
• M8: 3,774,354 km (0.079 R)
• M9: 4,416,578 km (0.119 R)
• M10: 4,951,839 km (0.09 R)
• M11: 6,289,244 km (0.115 R)
• M12: 8,137,077 km (0.099 R)
• M13: 8,469,932 km (0.096 R)
• M14: 8,768,679 km (0.109 R)
• M15: 10,910,622 km (0.114 R)
• M16: 12,482,297 km (0.079 R)
• M17: 14,500,671 km (0.039 R)
• M18: 14,867,336 km (0.08 R)
• M19: 16,199,505 km (0.107 R)
• M20: 17,063,133 km (0.081 R)
• M21: 19,689,324 km (0.099 R)
• M22: 22,007,492 km (0.096 R)
• M23: 22,573,571 km (0.058 R)
• M24: 24,330,149 km (0.074 R)
• M25: 26,628,720 km (0.108 R)
• M26: 27,364,293 km (0.107 R)
• M27: 30,842,443 km (0.092 R)
• M28: 32,687,434 km (0.092 R)
• M29: 36,147,034 km (0.078 R)
• M30: 37,505,084 km (0.099 R)
• M31: 38,779,508 km (0.103 R)
• M32: 39,131,961 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.5

Radius: 8.5

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.71 AU - 6.19 AU

Year: 7111 Days

Day: 6.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,591,239 km

• M1: 105,766 km (0.098 R)
• M2: 422,464 km (0.059 R)
• M3: 716,574 km (0.111 R)
• M4: 1,059,303 km (0.114 R)
• M5: 1,396,945 km (0.097 R)
• M6: 2,020,020 km (0.117 R)
• M7: 3,589,900 km (0.104 R)
• M8: 4,079,235 km (0.108 R)
• M9: 5,292,174 km (0.098 R)
• M10: 5,736,480 km (0.086 R)
• M11: 6,610,730 km (0.071 R)
• M12: 7,378,317 km (0.118 R)
• M13: 8,692,534 km (0.03 R)
• M14: 9,016,712 km (0.062 R)
• M15: 9,386,518 km (0.114 R)
• M16: 9,998,972 km (0.057 R)
• M17: 11,009,207 km (0.072 R)
• M18: 13,231,184 km (0.073 R)
• M19: 14,547,645 km (0.073 R)
• M20: 15,736,200 km (0.044 R)
• M21: 16,056,639 km (0.092 R)
• M22: 16,326,962 km (0.107 R)
• M23: 19,139,851 km (0.09 R)
• M24: 19,874,975 km (0.071 R)
• M25: 20,692,527 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.4

Radius: 9.7

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.04 AU - 6.28 AU

Year: 8694 Days

Day: 8.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 73,591,239 km

• M1: 122,670 km (0.1 R)
• M2: 710,291 km (0.053 R)
• M3: 1,070,672 km (0.082 R)
• M4: 1,373,907 km (0.089 R)
• M5: 2,061,159 km (0.039 R)
• M6: 2,483,175 km (0.101 R)
• M7: 2,836,974 km (0.026 R)
• M8: 3,179,703 km (0.101 R)
• M9: 6,165,377 km (0.092 R)
• M10: 7,477,949 km (0.113 R)
• M11: 7,802,576 km (0.073 R)
• M12: 8,393,189 km (0.074 R)
• M13: 9,104,377 km (0.108 R)
• M14: 9,711,445 km (0.035 R)
• M15: 10,196,591 km (0.082 R)
• M16: 13,693,441 km (0.086 R)
• M17: 15,253,298 km (0.069 R)
• M18: 15,842,863 km (0.079 R)
• M19: 16,379,471 km (0.096 R)
• M20: 18,427,316 km (0.087 R)
• M21: 19,858,070 km (0.114 R)
• M22: 23,975,153 km (0.106 R)
• M23: 27,078,860 km (0.034 R)
• M24: 33,192,476 km (0.101 R)
• M25: 34,853,162 km (0.057 R)
• M26: 37,742,944 km (0.097 R)
• M27: 38,219,713 km (0.087 R)
• M28: 40,663,843 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 29

Radius: 5.1

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 9.1 AU - 9.46 AU

Year: 18253 Days

Day: 18.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,591,239 km

• M1: 64,028 km (0.104 R)
• M2: 438,471 km (0.103 R)
• M3: 1,313,918 km (0.07 R)
• M4: 1,656,198 km (0.099 R)
• M5: 1,868,029 km (0.12 R)
• M6: 2,056,073 km (0.058 R)
• M7: 2,598,216 km (0.098 R)
• M8: 3,137,217 km (0.053 R)
• M9: 3,306,861 km (0.083 R)
• M10: 3,502,685 km (0.069 R)
• M11: 9,008,784 km (0.088 R)
• M12: 13,289,826 km (0.056 R)
• M13: 14,140,290 km (0.111 R)
• M14: 18,146,371 km (0.079 R)
• M15: 19,506,665 km (0.113 R)
• M16: 21,536,708 km (0.072 R)
• M17: 22,848,232 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 598.2

Radius: 7.5

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 9.84 AU - 10.12 AU

Year: 20357 Days

Day: 17.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 73,591,239 km

• M1: 93,349 km (0.12 R)
• M2: 441,763 km (0.117 R)
• M3: 803,490 km (0.088 R)
• M4: 1,200,822 km (0.102 R)
• M5: 1,867,281 km (0.061 R)
• M6: 3,059,127 km (0.106 R)
• M7: 4,320,387 km (0.073 R)
• M8: 5,855,709 km (0.084 R)
• M9: 7,294,093 km (0.055 R)
• M10: 7,724,037 km (0.076 R)
• M11: 11,097,469 km (0.068 R)
• M12: 11,348,046 km (0.053 R)
• M13: 12,188,636 km (0.089 R)
• M14: 12,931,689 km (0.07 R)
• M15: 16,531,014 km (0.057 R)
• M16: 23,820,469 km (0.1 R)
• M17: 26,846,086 km (0.115 R)
• M18: 30,118,539 km (0.079 R)
• M19: 33,778,451 km (0.099 R)
• M20: 34,704,312 km (0.068 R)
• M21: 54,210,828 km (0.114 R)
• M22: 54,933,236 km (0.119 R)
• M23: 58,074,941 km (0.061 R)
• M24: 61,530,053 km (0.051 R)
• M25: 64,511,838 km (0.075 R)
• M26: 65,731,060 km (0.066 R)
• M27: 66,552,353 km (0.087 R)
• M28: 68,846,286 km (0.072 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: 294 - 20,294 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit