🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.7

Radius: 8.4

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.87 AU - 0.87 AU

Year: 570 Days

Day: 13.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,385,843 km

• M1: 104,419 km (0.113 R)
• M2: 397,033 km (0.077 R)
• M3: 728,691 km (0.107 R)
• M4: 1,210,396 km (0.063 R)
• M5: 1,488,948 km (0.07 R)
• M6: 1,843,046 km (0.061 R)
• M7: 2,206,419 km (0.104 R)
• M8: 2,701,139 km (0.098 R)
• M9: 3,515,999 km (0.107 R)
• M10: 4,984,003 km (0.053 R)
• M11: 5,280,356 km (0.119 R)
• M12: 5,676,042 km (0.11 R)
• M13: 6,165,826 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.1

Radius: 12.8

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.99 AU - 1.03 AU

Year: 713 Days

Day: 8.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,385,843 km

• M1: 159,172 km (0.105 R)
• M2: 576,251 km (0.101 R)
• M3: 1,033,272 km (0.088 R)
• M4: 1,969,306 km (0.056 R)
• M5: 2,423,037 km (0.083 R)
• M6: 2,968,770 km (0.114 R)
• M7: 3,788,865 km (0.119 R)
• M8: 4,324,276 km (0.112 R)
• M9: 4,831,862 km (0.064 R)
• M10: 5,582,095 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504

Radius: 13.4

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.18 AU - 1.3 AU

Year: 971 Days

Day: 8.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,385,843 km

• M1: 166,802 km (0.041 R)
• M2: 643,570 km (0.099 R)
• M3: 2,585,500 km (0.103 R)
• M4: 4,246,934 km (0.109 R)
• M5: 4,777,857 km (0.115 R)
• M6: 5,561,002 km (0.105 R)
• M7: 6,198,139 km (0.108 R)
• M8: 6,995,196 km (0.065 R)
• M9: 8,254,811 km (0.079 R)
• M10: 9,085,527 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.3

Radius: 14.2

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.24 AU - 1.96 AU

Year: 1423 Days

Day: 6.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,385,843 km

• M1: 176,525 km (0.104 R)
• M2: 677,678 km (0.117 R)
• M3: 1,580,202 km (0.104 R)
• M4: 2,217,639 km (0.105 R)
• M5: 2,741,381 km (0.062 R)
• M6: 3,292,350 km (0.092 R)
• M7: 4,718,766 km (0.108 R)

Asteroid Belt

Center: 2.17 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.6

Radius: 12

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.13 AU - 3.33 AU

Year: 3171 Days

Day: 7.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 153.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,385,843 km

• M1: 149,448 km (0.114 R)
• M2: 1,754,783 km (0.118 R)
• M3: 2,300,815 km (0.115 R)
• M4: 3,122,556 km (0.111 R)
• M5: 4,832,909 km (0.085 R)
• M6: 5,590,622 km (0.06 R)
• M7: 9,896,498 km (0.063 R)
• M8: 13,196,028 km (0.079 R)
• M9: 13,690,898 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.5

Radius: 11.9

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.65 AU - 4.25 AU

Year: 4504 Days

Day: 10.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,385,843 km

• M1: 147,952 km (0.12 R)
• M2: 554,709 km (0.111 R)
• M3: 1,178,532 km (0.107 R)
• M4: 1,592,320 km (0.048 R)
• M5: 1,973,794 km (0.084 R)
• M6: 2,636,962 km (0.102 R)
• M7: 3,040,726 km (0.089 R)
• M8: 3,422,799 km (0.11 R)
• M9: 4,068,763 km (0.084 R)
• M10: 4,794,313 km (0.116 R)
• M11: 5,343,636 km (0.04 R)
• M12: 7,424,692 km (0.047 R)
• M13: 7,935,569 km (0.097 R)
• M14: 8,391,992 km (0.069 R)
• M15: 10,621,898 km (0.096 R)
• M16: 11,083,257 km (0.11 R)
• M17: 12,095,736 km (0.102 R)
• M18: 13,540,402 km (0.079 R)
• M19: 14,640,695 km (0.091 R)
• M20: 22,754,285 km (0.083 R)
• M21: 25,354,296 km (0.113 R)
• M22: 25,930,248 km (0.082 R)
• M23: 30,950,154 km (0.111 R)
• M24: 31,419,293 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313.6

Radius: 6.4

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.25 AU - 7.91 AU

Year: 11864 Days

Day: 23.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,385,843 km

• M1: 79,586 km (0.047 R)
• M2: 501,901 km (0.082 R)
• M3: 2,007,603 km (0.051 R)
• M4: 2,530,897 km (0.059 R)
• M5: 2,824,707 km (0.047 R)
• M6: 3,528,116 km (0.099 R)
• M7: 4,424,806 km (0.069 R)
• M8: 4,881,977 km (0.112 R)
• M9: 5,658,390 km (0.08 R)
• M10: 6,127,678 km (0.055 R)
• M11: 7,493,208 km (0.043 R)
• M12: 8,609,657 km (0.052 R)
• M13: 8,916,332 km (0.038 R)
• M14: 10,314,175 km (0.104 R)
• M15: 17,652,549 km (0.074 R)
• M16: 18,005,450 km (0.093 R)
• M17: 27,952,961 km (0.098 R)
• M18: 31,528,350 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.8

Radius: 6.4

Gravity: 15.38 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 9.75 AU - 10.25 AU

Year: 22228 Days

Day: 21.1 Hours

Environment

Temp: -244 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,385,843 km

• M1: 79,736 km (0.06 R)
• M2: 423,063 km (0.07 R)
• M3: 814,112 km (0.111 R)
• M4: 1,162,226 km (0.034 R)
• M5: 1,410,110 km (0.115 R)
• M6: 3,279,933 km (0.05 R)
• M7: 5,505,501 km (0.116 R)
• M8: 5,955,192 km (0.096 R)
• M9: 7,849,400 km (0.106 R)
• M10: 8,156,674 km (0.115 R)
• M11: 12,636,981 km (0.097 R)
• M12: 13,274,118 km (0.114 R)
• M13: 26,473,737 km (0.097 R)
• M14: 28,344,458 km (0.079 R)
• M15: 31,569,339 km (0.089 R)
• M16: 40,532,346 km (0.091 R)
• M17: 43,806,595 km (0.114 R)
• M18: 44,611,282 km (0.107 R)
• M19: 47,252,731 km (0.043 R)
• M20: 53,026,611 km (0.108 R)
• M21: 57,701,395 km (0.118 R)
• M22: 58,668,096 km (0.114 R)
• M23: 69,371,225 km (0.099 R)
• M24: 71,346,665 km (0.088 R)
• M25: 76,564,938 km (0.057 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: 293 - 11,666 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit