🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.03 AU - 1.37 AU

Year: 480 Days

Day: 25.6 Hours

Environment

Temp: 9 °C

Axial Tilt: 20.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 70,724,545 km

• M1: 44,431 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.33 AU - 2.43 AU

Year: 1341 Days

Day: 31.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.3

Radius: 11.3

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 5.17 AU - 5.79 AU

Year: 4686 Days

Day: 10.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,724,545 km

• M1: 140,622 km (0.086 R)
• M2: 761,004 km (0.07 R)
• M3: 1,271,133 km (0.098 R)
• M4: 1,990,400 km (0.118 R)
• M5: 2,515,488 km (0.092 R)
• M6: 3,384,951 km (0.106 R)
• M7: 3,867,853 km (0.108 R)
• M8: 4,493,022 km (0.083 R)
• M9: 6,245,562 km (0.115 R)
• M10: 7,446,084 km (0.107 R)
• M11: 8,156,076 km (0.083 R)
• M12: 10,044,450 km (0.086 R)
• M13: 11,181,094 km (0.118 R)
• M14: 13,195,579 km (0.086 R)
• M15: 13,708,850 km (0.093 R)
• M16: 16,654,731 km (0.106 R)
• M17: 17,193,882 km (0.115 R)
• M18: 20,814,001 km (0.113 R)
• M19: 22,221,417 km (0.044 R)
• M20: 23,243,769 km (0.105 R)
• M21: 23,766,614 km (0.074 R)
• M22: 24,527,020 km (0.119 R)
• M23: 27,482,326 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.5

Radius: 12.4

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.82 AU - 6.18 AU

Year: 4711 Days

Day: 13.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,724,545 km

• M1: 164,857 km (0.108 R)
• M2: 621,130 km (0.1 R)
• M3: 1,151,904 km (0.113 R)
• M4: 1,548,488 km (0.082 R)
• M5: 2,081,206 km (0.065 R)
• M6: 2,717,146 km (0.116 R)
• M7: 3,889,694 km (0.12 R)
• M8: 5,099,043 km (0.117 R)
• M9: 5,984,812 km (0.082 R)
• M10: 6,641,397 km (0.087 R)
• M11: 7,520,285 km (0.07 R)
• M12: 9,550,627 km (0.098 R)
• M13: 12,862,425 km (0.054 R)
• M14: 13,691,048 km (0.075 R)
• M15: 15,340,214 km (0.078 R)
• M16: 15,859,768 km (0.104 R)
• M17: 16,331,450 km (0.114 R)
• M18: 18,377,201 km (0.038 R)
• M19: 20,036,989 km (0.06 R)
• M20: 22,525,550 km (0.099 R)
• M21: 23,576,325 km (0.094 R)
• M22: 24,502,785 km (0.107 R)
• M23: 26,925,223 km (0.065 R)
• M24: 27,767,010 km (0.085 R)
• M25: 28,194,411 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.3

Radius: 8.2

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.35 AU - 5.81 AU

Year: 4814 Days

Day: 9 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 70,724,545 km

• M1: 102,026 km (0.078 R)
• M2: 372,648 km (0.11 R)
• M3: 810,820 km (0.031 R)
• M4: 1,265,748 km (0.114 R)
• M5: 1,558,211 km (0.067 R)
• M6: 1,857,258 km (0.106 R)
• M7: 2,267,305 km (0.093 R)
• M8: 2,541,369 km (0.069 R)
• M9: 5,182,669 km (0.087 R)
• M10: 6,958,545 km (0.07 R)
• M11: 7,949,182 km (0.096 R)
• M12: 8,623,569 km (0.106 R)
• M13: 10,085,739 km (0.072 R)
• M14: 10,664,084 km (0.088 R)
• M15: 13,444,510 km (0.06 R)
• M16: 13,741,761 km (0.09 R)
• M17: 15,618,167 km (0.067 R)
• M18: 16,448,286 km (0.058 R)
• M19: 17,075,400 km (0.106 R)
• M20: 17,837,003 km (0.104 R)
• M21: 19,115,018 km (0.09 R)
• M22: 20,648,994 km (0.051 R)
• M23: 22,057,009 km (0.116 R)
• M24: 22,540,210 km (0.117 R)
• M25: 23,030,592 km (0.055 R)
• M26: 23,960,044 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.4

Radius: 12.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 6.88 AU - 10.5 AU

Year: 9357 Days

Day: 12.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,724,545 km

• M1: 155,582 km (0.094 R)
• M2: 714,779 km (0.066 R)
• M3: 1,262,756 km (0.074 R)
• M4: 1,794,576 km (0.096 R)
• M5: 2,625,592 km (0.067 R)
• M6: 3,338,875 km (0.048 R)
• M7: 3,944,297 km (0.104 R)
• M8: 4,395,933 km (0.07 R)
• M9: 4,935,383 km (0.061 R)
• M10: 6,560,465 km (0.046 R)
• M11: 7,128,488 km (0.025 R)
• M12: 8,060,483 km (0.102 R)
• M13: 11,632,132 km (0.067 R)
• M14: 12,266,128 km (0.08 R)
• M15: 13,817,308 km (0.105 R)
• M16: 16,203,544 km (0.118 R)
• M17: 16,809,864 km (0.103 R)
• M18: 18,852,623 km (0.064 R)
• M19: 21,778,159 km (0.101 R)
• M20: 23,579,467 km (0.115 R)
• M21: 24,994,064 km (0.083 R)
• M22: 29,937,675 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.6

Radius: 4.7

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 15.21 AU - 23.05 AU

Year: 30561 Days

Day: 18.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 70,724,545 km

• M1: 58,493 km (0.042 R)
• M2: 306,676 km (0.092 R)
• M3: 895,942 km (0.071 R)
• M4: 1,110,465 km (0.075 R)
• M5: 2,417,651 km (0.111 R)
• M6: 2,835,927 km (0.101 R)
• M7: 3,725,735 km (0.101 R)
• M8: 6,285,654 km (0.063 R)
• M9: 6,803,113 km (0.117 R)
• M10: 7,584,163 km (0.089 R)
• M11: 9,105,424 km (0.102 R)
• M12: 9,994,634 km (0.112 R)
• M13: 10,578,963 km (0.083 R)
• M14: 11,001,427 km (0.055 R)
• M15: 14,794,332 km (0.078 R)
• M16: 16,981,752 km (0.109 R)
• M17: 17,477,070 km (0.05 R)
• M18: 18,409,963 km (0.113 R)
• M19: 20,098,923 km (0.083 R)
• M20: 20,467,083 km (0.072 R)
• M21: 21,312,161 km (0.078 R)
• M22: 22,082,590 km (0.117 R)
• M23: 22,278,115 km (0.106 R)
• M24: 24,296,938 km (0.074 R)
• M25: 25,457,668 km (0.109 R)
• M26: 26,324,737 km (0.1 R)
• M27: 33,593,249 km (0.052 R)
• M28: 33,851,754 km (0.059 R)
• M29: 36,103,950 km (0.106 R)
• M30: 39,164,124 km (0.054 R)
• M31: 43,150,608 km (0.117 R)
• M32: 43,763,361 km (0.085 R)
• M33: 49,040,875 km (0.113 R)
• M34: 55,264,894 km (0.09 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 19,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit