🌌 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: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.47 AU - 0.67 AU

Year: 274 Days

Day: 34.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.9

Radius: 13.1

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.77 AU - 0.89 AU

Year: 481 Days

Day: 5.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 64,701,394 km

• M1: 165,006 km (0.101 R)
• M2: 418,575 km (0.112 R)
• M3: 839,244 km (0.089 R)
• M4: 1,657,395 km (0.056 R)
• M5: 1,951,355 km (0.113 R)
• M6: 3,331,395 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.9

Radius: 13.3

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.11 AU - 1.23 AU

Year: 805 Days

Day: 10.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,701,394 km

• M1: 165,605 km (0.083 R)
• M2: 464,053 km (0.026 R)
• M3: 872,006 km (0.112 R)
• M4: 1,138,290 km (0.096 R)
• M5: 1,655,300 km (0.048 R)
• M6: 1,989,801 km (0.1 R)
• M7: 2,373,669 km (0.054 R)
• M8: 2,644,591 km (0.032 R)
• M9: 3,027,113 km (0.082 R)
• M10: 3,531,856 km (0.116 R)
• M11: 4,554,507 km (0.102 R)
• M12: 4,854,002 km (0.117 R)
• M13: 5,315,512 km (0.109 R)
• M14: 5,712,694 km (0.043 R)
• M15: 6,111,971 km (0.045 R)
• M16: 6,407,576 km (0.108 R)
• M17: 6,897,958 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.6

Radius: 13.9

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.13 AU - 1.49 AU

Year: 953 Days

Day: 9.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,701,394 km

• M1: 173,534 km (0.102 R)
• M2: 617,241 km (0.075 R)
• M3: 1,008,439 km (0.093 R)
• M4: 1,484,160 km (0.086 R)
• M5: 1,854,714 km (0.086 R)
• M6: 2,457,145 km (0.086 R)
• M7: 2,830,392 km (0.101 R)
• M8: 3,162,948 km (0.071 R)
• M9: 3,503,133 km (0.074 R)
• M10: 4,119,327 km (0.044 R)
• M11: 4,413,137 km (0.111 R)
• M12: 4,916,534 km (0.061 R)
• M13: 5,432,946 km (0.089 R)
• M14: 5,693,396 km (0.117 R)
• M15: 6,055,871 km (0.112 R)
• M16: 6,331,131 km (0.072 R)
• M17: 6,629,430 km (0.046 R)
• M18: 7,370,687 km (0.11 R)
• M19: 8,760,003 km (0.105 R)
• M20: 9,754,230 km (0.114 R)
• M21: 10,313,726 km (0.044 R)

Asteroid Belt

Center: 3.74 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 232.7

Radius: 5.7

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 5.83 AU - 6.49 AU

Year: 9721 Days

Day: 24.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,701,394 km

• M1: 75,547 km (0.107 R)
• M2: 366,515 km (0.117 R)
• M3: 4,433,931 km (0.058 R)
• M4: 8,127,652 km (0.112 R)
• M5: 9,977,430 km (0.077 R)
• M6: 10,974,051 km (0.045 R)
• M7: 14,859,856 km (0.101 R)
• M8: 16,209,827 km (0.058 R)
• M9: 16,394,281 km (0.045 R)
• M10: 16,906,803 km (0.111 R)
• M11: 18,052,723 km (0.117 R)
• M12: 19,086,444 km (0.048 R)
• M13: 25,316,597 km (0.113 R)
• M14: 25,547,128 km (0.107 R)
• M15: 27,429,368 km (0.095 R)
• M16: 30,064,086 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.5

Radius: 6.8

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 6.01 AU - 6.35 AU

Year: 9768 Days

Day: 24.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 64,701,394 km

• M1: 114,891 km (0.1 R)
• M2: 665,860 km (0.108 R)
• M3: 892,052 km (0.109 R)
• M4: 1,392,457 km (0.08 R)
• M5: 1,559,408 km (0.101 R)
• M6: 2,879,759 km (0.047 R)
• M7: 3,432,822 km (0.12 R)
• M8: 4,255,162 km (0.09 R)
• M9: 5,291,277 km (0.081 R)
• M10: 6,360,004 km (0.109 R)
• M11: 6,635,862 km (0.115 R)
• M12: 7,647,892 km (0.076 R)
• M13: 9,484,954 km (0.111 R)
• M14: 9,821,998 km (0.11 R)
• M15: 11,156,261 km (0.102 R)
• M16: 11,448,127 km (0.106 R)
• M17: 11,595,481 km (0.064 R)
• M18: 12,808,270 km (0.107 R)
• M19: 15,888,939 km (0.113 R)
• M20: 16,062,623 km (0.035 R)
• M21: 16,945,250 km (0.064 R)
• M22: 17,668,406 km (0.063 R)
• M23: 18,734,590 km (0.117 R)
• M24: 19,398,805 km (0.104 R)
• M25: 20,515,553 km (0.105 R)
• M26: 21,160,469 km (0.117 R)
• M27: 21,968,148 km (0.111 R)
• M28: 22,739,026 km (0.107 R)
• M29: 23,787,707 km (0.048 R)
• M30: 25,023,086 km (0.101 R)
• M31: 25,405,309 km (0.107 R)
• M32: 25,624,918 km (0.058 R)
• M33: 29,034,404 km (0.052 R)
• M34: 29,741,852 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 802

Radius: 4.5

Gravity: 39.6 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 9.3 AU - 9.58 AU

Year: 18441 Days

Day: 23.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 64,701,394 km

• M1: 56,099 km (0.106 R)
• M2: 143,764 km (0.038 R)
• M3: 417,378 km (0.103 R)
• M4: 957,875 km (0.077 R)
• M5: 1,095,206 km (0.061 R)
• M6: 1,501,663 km (0.079 R)
• M7: 2,488,411 km (0.081 R)
• M8: 2,710,713 km (0.081 R)
• M9: 3,092,637 km (0.08 R)
• M10: 3,215,307 km (0.106 R)
• M11: 3,372,086 km (0.111 R)
• M12: 3,865,160 km (0.114 R)
• M13: 4,992,380 km (0.084 R)
• M14: 5,187,905 km (0.101 R)
• M15: 5,713,891 km (0.03 R)
• M16: 6,007,850 km (0.032 R)
• M17: 7,588,801 km (0.078 R)
• M18: 8,935,481 km (0.108 R)
• M19: 9,785,646 km (0.103 R)
• M20: 10,448,962 km (0.072 R)
• M21: 12,693,379 km (0.08 R)
• M22: 14,158,242 km (0.102 R)
• M23: 15,156,957 km (0.103 R)
• M24: 16,825,871 km (0.059 R)
• M25: 17,474,228 km (0.108 R)
• M26: 18,808,043 km (0.106 R)
• M27: 19,110,978 km (0.101 R)
• M28: 21,220,308 km (0.066 R)
• M29: 22,111,313 km (0.109 R)
• M30: 22,937,243 km (0.092 R)
• M31: 25,770,627 km (0.046 R)
• M32: 27,935,158 km (0.104 R)
• M33: 29,332,402 km (0.084 R)
• M34: 31,737,039 km (0.115 R)
• M35: 35,366,433 km (0.091 R)
• M36: 37,148,742 km (0.036 R)
• M37: 39,083,790 km (0.113 R)
• M38: 39,301,754 km (0.07 R)
• M39: 55,163,916 km (0.107 R)
• M40: 63,198,967 km (0.099 R)
• M41: 66,140,360 km (0.071 R)
• M42: 71,338,437 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.8

Radius: 3.3

Gravity: 39.56 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.87 AU - 10.91 AU

Year: 19776 Days

Day: 20.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 64,701,394 km

• M1: 69,563 km (0.116 R)
• M2: 209,287 km (0.105 R)
• M3: 357,838 km (0.101 R)
• M4: 541,843 km (0.085 R)
• M5: 837,748 km (0.086 R)
• M6: 987,795 km (0.082 R)
• M7: 1,290,282 km (0.119 R)
• M8: 1,457,382 km (0.088 R)
• M9: 1,655,151 km (0.105 R)
• M10: 1,758,972 km (0.118 R)
• M11: 1,822,850 km (0.09 R)
• M12: 2,043,956 km (0.101 R)
• M13: 2,230,205 km (0.05 R)
• M14: 2,838,470 km (0.111 R)
• M15: 5,293,072 km (0.106 R)
• M16: 5,479,022 km (0.102 R)
• M17: 6,375,712 km (0.093 R)
• M18: 7,471,815 km (0.086 R)
• M19: 7,961,898 km (0.1 R)
• M20: 10,386,730 km (0.041 R)
• M21: 12,220,201 km (0.108 R)
• M22: 12,616,187 km (0.092 R)
• M23: 13,368,515 km (0.105 R)
• M24: 15,063,159 km (0.045 R)
• M25: 15,376,417 km (0.112 R)
• M26: 18,896,006 km (0.063 R)
• M27: 19,176,353 km (0.095 R)
• M28: 19,743,329 km (0.114 R)
• M29: 23,396,359 km (0.12 R)
• M30: 23,786,660 km (0.114 R)
• M31: 25,542,041 km (0.112 R)
• M32: 26,858,054 km (0.11 R)
• M33: 28,207,127 km (0.047 R)
• M34: 34,782,403 km (0.078 R)
• M35: 35,067,237 km (0.094 R)
• M36: 40,805,213 km (0.036 R)
• M37: 42,046,726 km (0.114 R)
• M38: 43,837,412 km (0.114 R)
• M39: 44,157,252 km (0.118 R)
• M40: 47,975,140 km (0.106 R)
• M41: 50,913,840 km (0.07 R)
• M42: 56,568,789 km (0.065 R)
• M43: 57,784,422 km (0.098 R)
• M44: 58,889,501 km (0.118 R)
• M45: 59,136,487 km (0.077 R)
• M46: 60,254,432 km (0.119 R)
• M47: 60,879,901 km (0.074 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 209 - 20,066 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit