🌌 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: 848.5

Radius: 10.6

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.42 AU - 0.62 AU

Year: 254 Days

Day: 8.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,421,998 km

• M1: 131,945 km (0.074 R)
• M2: 482,603 km (0.044 R)
• M3: 858,393 km (0.115 R)
• M4: 1,237,922 km (0.093 R)
• M5: 1,710,951 km (0.089 R)
• M6: 2,065,947 km (0.114 R)
• M7: 2,402,243 km (0.039 R)
• M8: 2,756,939 km (0.068 R)
• M9: 3,355,331 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.4

Radius: 14.1

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.63 AU - 0.65 AU

Year: 347 Days

Day: 5.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,421,998 km

• M1: 175,777 km (0.12 R)
• M2: 675,285 km (0.116 R)
• M3: 1,115,701 km (0.073 R)
• M4: 1,694,794 km (0.094 R)
• M5: 2,415,108 km (0.08 R)
• M6: 2,908,631 km (0.084 R)
• M7: 3,374,778 km (0.106 R)
• M8: 3,822,525 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.7

Radius: 12.3

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.53 AU - 0.79 AU

Year: 364 Days

Day: 7.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,421,998 km

• M1: 154,235 km (0.1 R)
• M2: 539,899 km (0.043 R)
• M3: 1,040,603 km (0.098 R)
• M4: 1,432,100 km (0.077 R)
• M5: 1,950,756 km (0.082 R)
• M6: 2,528,952 km (0.089 R)
• M7: 3,042,671 km (0.052 R)
• M8: 3,523,329 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.5

Radius: 14

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.06 AU - 1.2 AU

Year: 815 Days

Day: 12.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,421,998 km

• M1: 174,132 km (0.102 R)
• M2: 623,225 km (0.082 R)
• M3: 1,169,556 km (0.107 R)
• M4: 2,203,726 km (0.074 R)
• M5: 2,705,477 km (0.058 R)
• M6: 3,681,304 km (0.043 R)
• M7: 4,828,421 km (0.052 R)
• M8: 6,263,214 km (0.116 R)
• M9: 6,749,258 km (0.097 R)
• M10: 7,215,105 km (0.077 R)
• M11: 7,655,073 km (0.115 R)
• M12: 8,821,188 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.9

Radius: 13.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.86 AU - 2.32 AU

Year: 2049 Days

Day: 6.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,421,998 km

• M1: 165,605 km (0.048 R)
• M2: 1,476,381 km (0.088 R)
• M3: 1,911,262 km (0.102 R)
• M4: 2,820,668 km (0.108 R)
• M5: 3,250,163 km (0.095 R)
• M6: 4,376,187 km (0.072 R)
• M7: 5,468,251 km (0.117 R)
• M8: 8,161,761 km (0.119 R)
• M9: 8,851,407 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.5

Radius: 12.8

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.15 AU - 2.93 AU

Year: 2746 Days

Day: 6 Hours

Environment

Temp: -210 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,421,998 km

• M1: 160,668 km (0.108 R)
• M2: 637,287 km (0.093 R)
• M3: 1,100,891 km (0.106 R)
• M4: 1,629,420 km (0.085 R)
• M5: 2,569,942 km (0.102 R)
• M6: 4,210,432 km (0.102 R)
• M7: 5,206,006 km (0.104 R)
• M8: 6,380,499 km (0.112 R)
• M9: 9,070,568 km (0.114 R)
• M10: 9,503,354 km (0.116 R)
• M11: 10,685,926 km (0.081 R)
• M12: 11,458,000 km (0.108 R)
• M13: 12,886,809 km (0.054 R)
• M14: 13,855,904 km (0.037 R)
• M15: 14,972,503 km (0.082 R)
• M16: 16,893,340 km (0.116 R)
• M17: 18,281,009 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 475.2

Radius: 3.9

Gravity: 31.24 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.75 AU - 9.43 AU

Year: 14183 Days

Day: 22 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,421,998 km

• M1: 48,470 km (0.091 R)
• M2: 409,749 km (0.105 R)
• M3: 1,380,788 km (0.056 R)
• M4: 1,673,851 km (0.076 R)
• M5: 2,362,599 km (0.085 R)
• M6: 2,715,501 km (0.075 R)
• M7: 3,577,184 km (0.116 R)
• M8: 4,333,102 km (0.046 R)
• M9: 5,089,320 km (0.086 R)
• M10: 6,777,980 km (0.12 R)
• M11: 7,147,188 km (0.095 R)
• M12: 7,660,159 km (0.06 R)
• M13: 12,315,196 km (0.113 R)
• M14: 13,621,634 km (0.108 R)
• M15: 14,275,227 km (0.083 R)
• M16: 16,653,385 km (0.055 R)
• M17: 17,324,481 km (0.075 R)
• M18: 18,013,379 km (0.117 R)
• M19: 23,912,920 km (0.113 R)
• M20: 32,451,219 km (0.082 R)
• M21: 34,205,553 km (0.111 R)
• M22: 41,991,973 km (0.118 R)
• M23: 44,923,642 km (0.11 R)
• M24: 51,190,746 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.2

Radius: 7.8

Gravity: 15.27 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 7.68 AU - 9.64 AU

Year: 17285 Days

Day: 20.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,421,998 km

• M1: 98,435 km (0.105 R)
• M2: 433,684 km (0.11 R)
• M3: 845,078 km (0.051 R)
• M4: 1,333,067 km (0.081 R)
• M5: 2,459,987 km (0.115 R)
• M6: 4,729,836 km (0.1 R)
• M7: 5,631,462 km (0.114 R)
• M8: 7,381,757 km (0.066 R)
• M9: 9,076,552 km (0.092 R)
• M10: 10,102,943 km (0.069 R)
• M11: 10,828,941 km (0.108 R)
• M12: 11,784,722 km (0.033 R)
• M13: 12,452,377 km (0.119 R)
• M14: 13,215,775 km (0.116 R)
• M15: 14,231,844 km (0.09 R)
• M16: 15,852,438 km (0.12 R)
• M17: 17,850,766 km (0.12 R)
• M18: 18,375,555 km (0.073 R)
• M19: 28,585,161 km (0.078 R)
• M20: 33,469,831 km (0.091 R)
• M21: 35,214,142 km (0.087 R)
• M22: 37,871,299 km (0.088 R)
• M23: 40,960,495 km (0.102 R)
• M24: 43,581,151 km (0.113 R)
• M25: 51,580,149 km (0.076 R)
• M26: 59,918,884 km (0.115 R)
• M27: 61,291,744 km (0.042 R)
• M28: 61,687,729 km (0.086 R)
• M29: 64,304,046 km (0.085 R)
• M30: 66,993,367 km (0.074 R)
• M31: 68,047,434 km (0.069 R)
• M32: 68,472,142 km (0.074 R)
• M33: 74,604,757 km (0.2 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 18,221 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit