🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.53 AU - 0.73 AU

Year: 318 Days

Day: 42.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,880,115 km

• M1: 43,383 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.6

Radius: 11.1

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.66 AU - 0.78 AU

Year: 388 Days

Day: 9.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,880,115 km

• M1: 138,827 km (0.097 R)
• M2: 571,015 km (0.105 R)
• M3: 1,003,203 km (0.077 R)
• M4: 1,354,310 km (0.057 R)
• M5: 1,699,731 km (0.12 R)
• M6: 2,079,410 km (0.063 R)
• M7: 3,047,009 km (0.107 R)
• M8: 3,601,419 km (0.052 R)
• M9: 4,250,076 km (0.116 R)
• M10: 5,592,567 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.4

Radius: 12

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.36 AU - 1.8 AU

Year: 1263 Days

Day: 11.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,880,115 km

• M1: 149,299 km (0.091 R)
• M2: 639,381 km (0.092 R)
• M3: 1,208,152 km (0.097 R)
• M4: 1,641,089 km (0.084 R)
• M5: 3,176,412 km (0.101 R)
• M6: 4,121,421 km (0.104 R)
• M7: 4,567,073 km (0.063 R)
• M8: 6,168,967 km (0.11 R)
• M9: 7,274,047 km (0.111 R)
• M10: 9,656,842 km (0.113 R)
• M11: 10,125,831 km (0.078 R)
• M12: 10,741,875 km (0.078 R)
• M13: 11,143,695 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.7

Radius: 9.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.18 AU - 2.4 AU

Year: 2203 Days

Day: 14.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,880,115 km

• M1: 115,639 km (0.034 R)
• M2: 420,968 km (0.092 R)
• M3: 738,265 km (0.046 R)
• M4: 1,327,382 km (0.115 R)
• M5: 1,803,103 km (0.098 R)
• M6: 2,169,169 km (0.098 R)
• M7: 2,706,824 km (0.039 R)
• M8: 3,007,815 km (0.094 R)
• M9: 3,542,926 km (0.114 R)
• M10: 3,886,553 km (0.106 R)
• M11: 5,401,082 km (0.099 R)
• M12: 6,340,107 km (0.098 R)
• M13: 6,874,770 km (0.118 R)
• M14: 8,508,678 km (0.098 R)
• M15: 10,736,490 km (0.101 R)
• M16: 11,094,028 km (0.088 R)
• M17: 11,795,343 km (0.115 R)
• M18: 13,782,302 km (0.097 R)
• M19: 14,592,674 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.6

Radius: 9.2

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.13 AU - 3.35 AU

Year: 3708 Days

Day: 13.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,880,115 km

• M1: 119,529 km (0.079 R)
• M2: 607,068 km (0.069 R)
• M3: 2,051,136 km (0.118 R)
• M4: 5,391,956 km (0.09 R)
• M5: 6,441,385 km (0.077 R)
• M6: 7,055,933 km (0.107 R)
• M7: 7,945,293 km (0.112 R)
• M8: 8,875,342 km (0.083 R)
• M9: 11,943,445 km (0.091 R)
• M10: 13,373,002 km (0.046 R)
• M11: 13,801,600 km (0.071 R)
• M12: 14,239,324 km (0.068 R)
• M13: 15,892,231 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784

Radius: 14.2

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.86 AU - 6.04 AU

Year: 7002 Days

Day: 14.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,880,115 km

• M1: 179,368 km (0.113 R)
• M2: 693,985 km (0.11 R)
• M3: 1,540,260 km (0.1 R)
• M4: 2,319,365 km (0.087 R)
• M5: 3,198,103 km (0.1 R)
• M6: 4,315,450 km (0.066 R)
• M7: 5,552,923 km (0.101 R)
• M8: 11,237,343 km (0.081 R)
• M9: 12,014,654 km (0.094 R)
• M10: 13,276,213 km (0.094 R)
• M11: 15,238,039 km (0.094 R)
• M12: 18,711,851 km (0.081 R)
• M13: 20,785,876 km (0.103 R)
• M14: 23,505,565 km (0.106 R)
• M15: 28,394,723 km (0.1 R)
• M16: 35,108,975 km (0.059 R)
• M17: 38,021,795 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.4

Radius: 6.3

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.99 AU - 9.17 AU

Year: 13269 Days

Day: 21.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,880,115 km

• M1: 78,688 km (0.113 R)
• M2: 1,269,039 km (0.109 R)
• M3: 1,936,844 km (0.076 R)
• M4: 2,503,969 km (0.06 R)
• M5: 2,703,383 km (0.113 R)
• M6: 4,234,218 km (0.12 R)
• M7: 6,569,441 km (0.089 R)
• M8: 12,492,021 km (0.109 R)
• M9: 13,682,072 km (0.063 R)
• M10: 14,190,106 km (0.059 R)
• M11: 15,424,139 km (0.053 R)
• M12: 16,036,293 km (0.116 R)
• M13: 16,664,455 km (0.116 R)
• M14: 17,505,494 km (0.072 R)
• M15: 21,604,775 km (0.097 R)
• M16: 22,370,866 km (0.089 R)
• M17: 23,875,820 km (0.119 R)
• M18: 24,777,447 km (0.077 R)
• M19: 26,387,718 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684

Radius: 3.9

Gravity: 44.97 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.94 AU - 10.84 AU

Year: 16853 Days

Day: 23.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 28,880,115 km

• M1: 49,816 km (0.055 R)
• M2: 174,730 km (0.112 R)
• M3: 411,843 km (0.06 R)
• M4: 551,268 km (0.087 R)
• M5: 685,457 km (0.107 R)
• M6: 962,513 km (0.06 R)
• M7: 1,172,698 km (0.118 R)
• M8: 1,324,540 km (0.1 R)
• M9: 1,842,747 km (0.059 R)
• M10: 2,736,893 km (0.106 R)
• M11: 2,980,438 km (0.078 R)
• M12: 3,538,887 km (0.057 R)
• M13: 4,387,706 km (0.04 R)
• M14: 5,903,132 km (0.076 R)
• M15: 6,691,064 km (0.099 R)
• M16: 7,087,798 km (0.06 R)
• M17: 7,314,887 km (0.118 R)
• M18: 8,989,486 km (0.11 R)
• M19: 9,472,238 km (0.094 R)
• M20: 14,330,429 km (0.12 R)
• M21: 16,443,050 km (0.089 R)
• M22: 20,258,394 km (0.071 R)
• M23: 21,650,701 km (0.1 R)
• M24: 23,907,385 km (0.091 R)
• M25: 24,831,451 km (0.09 R)
• M26: 27,523,016 km (0.107 R)
• M27: 31,122,640 km (0.092 R)
• M28: 32,223,531 km (0.106 R)
• M29: 35,417,445 km (0.098 R)
• M30: 35,681,785 km (0.092 R)
• M31: 41,686,793 km (0.056 R)
• M32: 43,930,163 km (0.101 R)
• M33: 54,584,673 km (0.065 R)
• M34: 54,937,275 km (0.055 R)
• M35: 58,179,210 km (0.101 R)
• M36: 58,916,728 km (0.119 R)
• M37: 63,083,926 km (0.1 R)
• M38: 65,041,414 km (0.084 R)
• M39: 67,646,212 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 956.6

Radius: 5

Gravity: 38.26 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.08 AU - 9.88 AU

Year: 17110 Days

Day: 16.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 28,880,115 km

• M1: 62,233 km (0.078 R)
• M2: 539,300 km (0.108 R)
• M3: 721,959 km (0.119 R)
• M4: 888,761 km (0.104 R)
• M5: 1,216,231 km (0.102 R)
• M6: 1,689,858 km (0.08 R)
• M7: 2,008,351 km (0.104 R)
• M8: 2,343,600 km (0.119 R)
• M9: 2,524,913 km (0.118 R)
• M10: 2,890,081 km (0.118 R)
• M11: 3,317,632 km (0.105 R)
• M12: 3,546,666 km (0.057 R)
• M13: 3,941,306 km (0.085 R)
• M14: 4,165,702 km (0.116 R)
• M15: 4,781,896 km (0.058 R)
• M16: 5,535,720 km (0.112 R)
• M17: 6,585,747 km (0.105 R)
• M18: 6,810,593 km (0.078 R)
• M19: 7,087,349 km (0.116 R)
• M20: 7,912,082 km (0.078 R)
• M21: 8,478,759 km (0.052 R)
• M22: 8,853,052 km (0.097 R)
• M23: 9,238,417 km (0.101 R)
• M24: 9,750,191 km (0.069 R)
• M25: 11,143,845 km (0.087 R)
• M26: 11,463,535 km (0.056 R)
• M27: 12,255,506 km (0.115 R)
• M28: 13,655,742 km (0.054 R)
• M29: 16,439,011 km (0.08 R)
• M30: 16,936,873 km (0.115 R)
• M31: 19,302,613 km (0.071 R)
• M32: 20,900,019 km (0.079 R)
• M33: 22,583,295 km (0.057 R)
• M34: 24,141,955 km (0.093 R)
• M35: 26,896,650 km (0.102 R)
• M36: 33,415,078 km (0.052 R)
• M37: 37,676,822 km (0.103 R)
• M38: 40,460,240 km (0.076 R)
• M39: 41,519,243 km (0.112 R)
• M40: 44,807,255 km (0.086 R)
• M41: 46,104,119 km (0.101 R)
• M42: 50,144,608 km (0.1 R)
• M43: 58,728,534 km (0.119 R)
• M44: 66,763,735 km (0.099 R)
• M45: 71,700,015 km (0.103 R)
• M46: 72,140,432 km (0.064 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30

Radius: 5.2

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 8.26 AU - 13.2 AU

Year: 22348 Days

Day: 19.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,880,115 km

• M1: 64,626 km (0.103 R)
• M2: 463,005 km (0.116 R)
• M3: 774,767 km (0.089 R)
• M4: 1,167,462 km (0.107 R)
• M5: 1,787,096 km (0.115 R)
• M6: 4,858,789 km (0.056 R)
• M7: 5,234,280 km (0.054 R)
• M8: 5,745,306 km (0.089 R)
• M9: 7,760,988 km (0.111 R)
• M10: 10,033,380 km (0.098 R)
• M11: 11,182,441 km (0.102 R)
• M12: 11,413,121 km (0.111 R)
• M13: 12,664,058 km (0.095 R)
• M14: 14,271,786 km (0.101 R)
• M15: 14,434,250 km (0.09 R)
• M16: 21,707,698 km (0.089 R)
• M17: 22,502,961 km (0.048 R)
• M18: 23,845,901 km (0.06 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: 536 - 15,600 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit