🌌 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 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.3

Radius: 10.1

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.5 AU - 0.54 AU

Year: 254 Days

Day: 7.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,287,093 km

• M1: 125,662 km (0.115 R)
• M2: 783,294 km (0.109 R)
• M3: 1,102,237 km (0.114 R)
• M4: 1,608,028 km (0.101 R)
• M5: 2,414,659 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.9

Radius: 11

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.51 AU - 0.55 AU

Year: 262 Days

Day: 9.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,287,093 km

• M1: 136,732 km (0.117 R)
• M2: 511,774 km (0.097 R)
• M3: 913,445 km (0.1 R)
• M4: 1,312,721 km (0.115 R)
• M5: 2,371,874 km (0.096 R)
• M6: 3,009,610 km (0.101 R)
• M7: 3,987,382 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.3

Radius: 13.5

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.52 AU - 0.76 AU

Year: 347 Days

Day: 9.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 21,287,093 km

• M1: 171,589 km (0.045 R)
• M2: 657,931 km (0.106 R)
• M3: 1,633,908 km (0.106 R)
• M4: 2,281,966 km (0.035 R)
• M5: 2,715,052 km (0.064 R)
• M6: 3,454,215 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961

Radius: 9.6

Gravity: 10.43 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.71 AU - 1.01 AU

Year: 541 Days

Day: 9.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,287,093 km

• M1: 119,529 km (0.101 R)
• M2: 636,389 km (0.12 R)
• M3: 949,797 km (0.112 R)
• M4: 1,555,818 km (0.118 R)
• M5: 1,902,735 km (0.099 R)
• M6: 2,361,402 km (0.04 R)
• M7: 2,710,863 km (0.101 R)
• M8: 3,082,763 km (0.116 R)
• M9: 3,515,251 km (0.095 R)
• M10: 3,844,516 km (0.098 R)
• M11: 4,269,972 km (0.09 R)
• M12: 5,481,715 km (0.086 R)
• M13: 6,354,918 km (0.119 R)
• M14: 6,679,395 km (0.09 R)
• M15: 7,384,001 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.9

Radius: 14.2

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.9 AU - 1.1 AU

Year: 678 Days

Day: 9.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,287,093 km

• M1: 176,525 km (0.102 R)
• M2: 674,387 km (0.109 R)
• M3: 1,340,547 km (0.094 R)
• M4: 1,805,198 km (0.114 R)
• M5: 2,379,354 km (0.097 R)
• M6: 3,087,102 km (0.077 R)
• M7: 4,220,754 km (0.048 R)
• M8: 6,204,572 km (0.054 R)
• M9: 7,097,821 km (0.084 R)
• M10: 7,645,798 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.7

Radius: 10.6

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.06 AU - 2.44 AU

Year: 2289 Days

Day: 7.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,287,093 km

• M1: 131,796 km (0.093 R)
• M2: 495,019 km (0.06 R)
• M3: 826,379 km (0.075 R)
• M4: 1,340,547 km (0.096 R)
• M5: 2,037,822 km (0.039 R)
• M6: 3,536,045 km (0.066 R)
• M7: 4,656,683 km (0.11 R)
• M8: 5,480,219 km (0.069 R)
• M9: 5,878,897 km (0.107 R)
• M10: 6,372,570 km (0.092 R)
• M11: 6,760,926 km (0.113 R)
• M12: 7,137,614 km (0.101 R)
• M13: 8,913,640 km (0.093 R)
• M14: 10,041,907 km (0.095 R)
• M15: 11,040,472 km (0.118 R)
• M16: 12,420,214 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.6

Radius: 13.8

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.16 AU - 2.38 AU

Year: 2320 Days

Day: 6.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,287,093 km

• M1: 172,337 km (0.073 R)
• M2: 620,382 km (0.055 R)
• M3: 1,065,286 km (0.079 R)
• M4: 1,839,306 km (0.069 R)
• M5: 3,973,170 km (0.11 R)
• M6: 4,457,269 km (0.071 R)
• M7: 5,671,554 km (0.068 R)
• M8: 6,197,092 km (0.066 R)
• M9: 8,188,838 km (0.118 R)
• M10: 9,450,995 km (0.092 R)
• M11: 10,065,992 km (0.066 R)
• M12: 10,642,243 km (0.047 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.9

Radius: 9.6

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.84 AU - 3.08 AU

Year: 3454 Days

Day: 14.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,287,093 km

• M1: 119,379 km (0.058 R)
• M2: 531,372 km (0.041 R)
• M3: 1,131,857 km (0.079 R)
• M4: 2,206,718 km (0.086 R)
• M5: 2,655,811 km (0.055 R)
• M6: 3,836,737 km (0.096 R)
• M7: 4,313,954 km (0.102 R)
• M8: 6,013,386 km (0.111 R)
• M9: 8,252,866 km (0.093 R)
• M10: 9,670,605 km (0.044 R)
• M11: 10,280,964 km (0.118 R)
• M12: 11,962,145 km (0.066 R)
• M13: 15,244,023 km (0.089 R)
• M14: 16,070,701 km (0.107 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 12,960 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit