🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.48 AU - 0.66 AU

Year: 278 Days

Day: 43.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,194,085 km

• M1: 224,397 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.5

Radius: 9.6

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.78 AU - 1.18 AU

Year: 626 Days

Day: 11.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,194,085 km

• M1: 119,379 km (0.111 R)
• M2: 461,360 km (0.099 R)
• M3: 1,010,234 km (0.077 R)
• M4: 1,612,964 km (0.079 R)
• M5: 1,924,876 km (0.103 R)
• M6: 2,725,673 km (0.059 R)
• M7: 3,328,553 km (0.115 R)
• M8: 3,773,606 km (0.102 R)
• M9: 4,101,525 km (0.093 R)
• M10: 5,185,062 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.1

Radius: 13.5

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.21 AU - 2.93 AU

Year: 2660 Days

Day: 9.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,194,085 km

• M1: 170,242 km (0.048 R)
• M2: 653,743 km (0.097 R)
• M3: 1,259,614 km (0.077 R)
• M4: 1,780,364 km (0.072 R)
• M5: 2,417,352 km (0.115 R)
• M6: 3,477,552 km (0.066 R)
• M7: 4,566,774 km (0.072 R)
• M8: 5,308,480 km (0.107 R)
• M9: 6,611,478 km (0.103 R)
• M10: 7,622,610 km (0.09 R)
• M11: 8,438,666 km (0.105 R)
• M12: 9,173,940 km (0.069 R)
• M13: 10,965,374 km (0.103 R)
• M14: 12,936,625 km (0.041 R)
• M15: 15,919,158 km (0.114 R)
• M16: 17,042,638 km (0.11 R)
• M17: 17,946,509 km (0.115 R)
• M18: 18,437,788 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.6

Radius: 13.9

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.79 AU - 3.83 AU

Year: 3888 Days

Day: 6.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,194,085 km

• M1: 172,935 km (0.059 R)
• M2: 719,267 km (0.041 R)
• M3: 1,795,025 km (0.107 R)
• M4: 3,205,583 km (0.093 R)
• M5: 4,450,387 km (0.117 R)
• M6: 5,183,566 km (0.118 R)
• M7: 5,688,609 km (0.099 R)
• M8: 6,403,537 km (0.068 R)
• M9: 8,764,790 km (0.033 R)
• M10: 10,121,044 km (0.062 R)
• M11: 10,870,978 km (0.04 R)
• M12: 11,702,593 km (0.081 R)
• M13: 17,258,209 km (0.107 R)
• M14: 18,147,867 km (0.111 R)
• M15: 21,741,657 km (0.108 R)
• M16: 24,879,622 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.4

Radius: 11.9

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.34 AU - 3.34 AU

Year: 3941 Days

Day: 10.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,194,085 km

• M1: 150,346 km (0.114 R)
• M2: 718,519 km (0.078 R)
• M3: 1,639,892 km (0.102 R)
• M4: 2,091,229 km (0.107 R)
• M5: 2,625,443 km (0.092 R)
• M6: 3,061,820 km (0.119 R)
• M7: 4,272,515 km (0.078 R)
• M8: 4,837,846 km (0.05 R)
• M9: 5,294,119 km (0.089 R)
• M10: 5,947,413 km (0.084 R)
• M11: 7,000,283 km (0.098 R)
• M12: 7,964,291 km (0.088 R)
• M13: 9,274,918 km (0.115 R)
• M14: 9,708,453 km (0.041 R)
• M15: 10,401,839 km (0.094 R)
• M16: 11,352,234 km (0.09 R)
• M17: 12,844,324 km (0.114 R)
• M18: 14,374,859 km (0.07 R)
• M19: 15,001,674 km (0.037 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.1

Radius: 14.2

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.53 AU - 5.01 AU

Year: 5697 Days

Day: 5.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,194,085 km

• M1: 176,675 km (0.058 R)
• M2: 854,054 km (0.119 R)
• M3: 1,345,184 km (0.045 R)
• M4: 2,903,844 km (0.061 R)
• M5: 3,387,494 km (0.037 R)
• M6: 4,800,147 km (0.117 R)
• M7: 5,284,545 km (0.102 R)
• M8: 6,165,227 km (0.036 R)
• M9: 8,639,875 km (0.087 R)
• M10: 9,484,206 km (0.11 R)
• M11: 11,812,697 km (0.099 R)
• M12: 12,499,949 km (0.06 R)
• M13: 13,006,936 km (0.117 R)
• M14: 13,633,602 km (0.108 R)
• M15: 17,762,503 km (0.088 R)
• M16: 18,339,353 km (0.032 R)
• M17: 19,328,643 km (0.056 R)
• M18: 19,939,152 km (0.06 R)
• M19: 21,485,695 km (0.093 R)
• M20: 25,376,736 km (0.092 R)
• M21: 25,863,377 km (0.101 R)
• M22: 26,439,030 km (0.06 R)
• M23: 29,984,350 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.1

Radius: 14.8

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.1 AU - 4.94 AU

Year: 6205 Days

Day: 14 Hours

Environment

Temp: -216 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,194,085 km

• M1: 184,155 km (0.119 R)
• M2: 646,712 km (0.03 R)
• M3: 1,170,155 km (0.105 R)
• M4: 1,885,232 km (0.098 R)
• M5: 2,921,347 km (0.115 R)
• M6: 3,742,041 km (0.05 R)
• M7: 5,080,942 km (0.11 R)
• M8: 5,780,911 km (0.051 R)
• M9: 6,305,401 km (0.071 R)
• M10: 7,188,626 km (0.052 R)
• M11: 7,953,520 km (0.096 R)
• M12: 8,687,896 km (0.118 R)
• M13: 9,646,370 km (0.098 R)
• M14: 12,245,483 km (0.059 R)
• M15: 13,394,395 km (0.096 R)
• M16: 15,281,722 km (0.05 R)
• M17: 17,951,744 km (0.088 R)
• M18: 18,506,902 km (0.105 R)
• M19: 19,289,000 km (0.041 R)
• M20: 20,843,322 km (0.102 R)
• M21: 21,768,285 km (0.06 R)
• M22: 24,116,523 km (0.07 R)
• M23: 25,136,033 km (0.116 R)
• M24: 26,361,538 km (0.078 R)
• M25: 31,866,142 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.5

Radius: 6.6

Gravity: 20.65 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 5.83 AU - 6.29 AU

Year: 9632 Days

Day: 24.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 51,194,085 km

• M1: 83,027 km (0.095 R)
• M2: 375,191 km (0.097 R)
• M3: 590,014 km (0.113 R)
• M4: 797,506 km (0.039 R)
• M5: 2,864,650 km (0.119 R)
• M6: 3,527,967 km (0.034 R)
• M7: 4,117,532 km (0.113 R)
• M8: 4,586,072 km (0.087 R)
• M9: 6,548,048 km (0.077 R)
• M10: 7,821,425 km (0.087 R)
• M11: 10,262,414 km (0.07 R)
• M12: 11,626,597 km (0.09 R)
• M13: 12,087,508 km (0.103 R)
• M14: 13,861,140 km (0.095 R)
• M15: 14,313,973 km (0.081 R)
• M16: 18,686,569 km (0.076 R)
• M17: 19,318,919 km (0.076 R)
• M18: 21,731,335 km (0.091 R)
• M19: 22,964,769 km (0.118 R)
• M20: 23,781,873 km (0.11 R)
• M21: 24,901,463 km (0.118 R)
• M22: 28,057,829 km (0.101 R)
• M23: 31,804,807 km (0.116 R)
• M24: 33,972,180 km (0.06 R)
• M25: 37,094,886 km (0.109 R)
• M26: 40,666,236 km (0.1 R)
• M27: 41,194,317 km (0.108 R)
• M28: 41,460,152 km (0.07 R)
• M29: 42,806,384 km (0.082 R)
• M30: 44,880,109 km (0.115 R)
• M31: 45,870,298 km (0.048 R)
• M32: 48,928,377 km (0.1 R)
• M33: 49,525,871 km (0.06 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: 225 - 16,916 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit