🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.6

Radius: 11.8

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.75 AU - 0.75 AU

Year: 426 Days

Day: 12.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 48,393,891 km

• M1: 146,756 km (0.112 R)
• M2: 620,532 km (0.057 R)
• M3: 1,008,888 km (0.085 R)
• M4: 1,512,883 km (0.043 R)
• M5: 2,175,003 km (0.115 R)
• M6: 2,626,340 km (0.08 R)
• M7: 3,022,625 km (0.098 R)
• M8: 4,007,428 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.1

Radius: 9

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.19 AU - 3.59 AU

Year: 3223 Days

Day: 10.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,393,891 km

• M1: 112,049 km (0.068 R)
• M2: 405,111 km (0.093 R)
• M3: 722,109 km (0.069 R)
• M4: 1,270,684 km (0.066 R)
• M5: 1,772,884 km (0.083 R)
• M6: 3,059,127 km (0.109 R)
• M7: 3,377,770 km (0.088 R)
• M8: 3,906,748 km (0.085 R)
• M9: 4,201,606 km (0.103 R)
• M10: 4,490,180 km (0.031 R)
• M11: 4,814,209 km (0.113 R)
• M12: 5,655,847 km (0.072 R)
• M13: 6,983,528 km (0.117 R)
• M14: 7,360,365 km (0.081 R)
• M15: 7,812,001 km (0.056 R)
• M16: 9,452,341 km (0.065 R)
• M17: 11,075,478 km (0.103 R)
• M18: 12,242,043 km (0.054 R)
• M19: 12,962,805 km (0.106 R)
• M20: 18,164,473 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.5

Radius: 10

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.33 AU - 3.61 AU

Year: 3358 Days

Day: 7.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,393,891 km

• M1: 124,316 km (0.113 R)
• M2: 493,224 km (0.074 R)
• M3: 807,679 km (0.112 R)
• M4: 1,176,737 km (0.103 R)
• M5: 1,542,504 km (0.092 R)
• M6: 1,899,145 km (0.11 R)
• M7: 2,366,938 km (0.11 R)
• M8: 3,899,418 km (0.035 R)
• M9: 4,887,213 km (0.093 R)
• M10: 8,143,061 km (0.102 R)
• M11: 9,025,688 km (0.088 R)
• M12: 11,929,533 km (0.098 R)
• M13: 12,272,112 km (0.098 R)
• M14: 12,753,966 km (0.088 R)
• M15: 13,431,196 km (0.057 R)
• M16: 13,755,375 km (0.079 R)
• M17: 14,613,019 km (0.071 R)
• M18: 15,556,533 km (0.051 R)
• M19: 16,329,655 km (0.112 R)
• M20: 17,564,735 km (0.099 R)
• M21: 17,896,842 km (0.025 R)
• M22: 18,516,776 km (0.108 R)
• M23: 19,267,907 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.5

Radius: 13.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.92 AU - 4.68 AU

Year: 4859 Days

Day: 12.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,393,891 km

• M1: 174,880 km (0.1 R)
• M2: 906,413 km (0.057 R)
• M3: 1,622,389 km (0.094 R)
• M4: 2,789,103 km (0.094 R)
• M5: 4,044,079 km (0.053 R)
• M6: 5,560,104 km (0.089 R)
• M7: 6,141,741 km (0.111 R)
• M8: 6,938,349 km (0.099 R)
• M9: 11,598,622 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.1

Radius: 9.7

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.98 AU - 4.7 AU

Year: 4936 Days

Day: 9.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,393,891 km

• M1: 120,576 km (0.106 R)
• M2: 428,149 km (0.119 R)
• M3: 986,299 km (0.059 R)
• M4: 1,771,538 km (0.057 R)
• M5: 3,618,025 km (0.047 R)
• M6: 3,990,972 km (0.105 R)
• M7: 5,503,406 km (0.089 R)
• M8: 6,344,595 km (0.113 R)
• M9: 8,210,530 km (0.104 R)
• M10: 9,970,698 km (0.031 R)
• M11: 10,960,438 km (0.114 R)
• M12: 11,435,560 km (0.118 R)
• M13: 12,519,547 km (0.029 R)
• M14: 17,781,951 km (0.051 R)
• M15: 19,862,558 km (0.096 R)
• M16: 23,777,983 km (0.107 R)
• M17: 24,282,726 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.4

Radius: 9.7

Gravity: 9.27 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.36 AU - 4.38 AU

Year: 4994 Days

Day: 7.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 48,393,891 km

• M1: 122,221 km (0.06 R)
• M2: 426,803 km (0.083 R)
• M3: 874,998 km (0.088 R)
• M4: 1,239,269 km (0.113 R)
• M5: 1,744,610 km (0.104 R)
• M6: 2,839,966 km (0.109 R)
• M7: 3,525,423 km (0.09 R)
• M8: 3,838,083 km (0.039 R)
• M9: 4,193,827 km (0.074 R)
• M10: 4,597,442 km (0.082 R)
• M11: 5,280,206 km (0.099 R)
• M12: 5,904,628 km (0.07 R)
• M13: 6,283,111 km (0.081 R)
• M14: 7,886,650 km (0.093 R)
• M15: 9,965,013 km (0.085 R)
• M16: 10,548,295 km (0.113 R)
• M17: 13,111,954 km (0.041 R)
• M18: 14,088,679 km (0.069 R)
• M19: 14,938,993 km (0.079 R)
• M20: 15,288,603 km (0.042 R)
• M21: 22,100,243 km (0.063 R)
• M22: 24,919,565 km (0.034 R)
• M23: 25,826,726 km (0.109 R)
• M24: 28,323,963 km (0.101 R)
• M25: 29,493,968 km (0.103 R)
• M26: 31,833,978 km (0.098 R)
• M27: 32,608,147 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.3

Radius: 9.5

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 5.43 AU - 5.49 AU

Year: 8369 Days

Day: 7 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 48,393,891 km

• M1: 120,875 km (0.106 R)
• M2: 508,782 km (0.094 R)
• M3: 849,716 km (0.101 R)
• M4: 2,077,166 km (0.109 R)
• M5: 2,540,920 km (0.101 R)
• M6: 3,629,244 km (0.034 R)
• M7: 4,944,060 km (0.052 R)
• M8: 5,271,679 km (0.111 R)
• M9: 7,170,675 km (0.061 R)
• M10: 8,150,840 km (0.077 R)
• M11: 9,351,662 km (0.093 R)
• M12: 10,041,607 km (0.086 R)
• M13: 12,975,970 km (0.071 R)
• M14: 14,668,819 km (0.056 R)
• M15: 15,790,953 km (0.115 R)
• M16: 17,442,813 km (0.114 R)
• M17: 18,916,950 km (0.063 R)
• M18: 19,647,436 km (0.099 R)
• M19: 20,169,832 km (0.084 R)
• M20: 20,548,614 km (0.047 R)
• M21: 20,932,183 km (0.097 R)
• M22: 24,174,717 km (0.047 R)
• M23: 24,602,267 km (0.081 R)
• M24: 27,366,537 km (0.056 R)
• M25: 32,353,980 km (0.094 R)
• M26: 33,928,797 km (0.099 R)
• M27: 37,003,931 km (0.064 R)
• M28: 37,800,839 km (0.093 R)
• M29: 38,493,028 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.6

Radius: 7.5

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.19 AU - 7.91 AU

Year: 10997 Days

Day: 23 Hours

Environment

Temp: -222 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,393,891 km

• M1: 197,170 km (0.08 R)
• M2: 602,131 km (0.064 R)
• M3: 846,874 km (0.109 R)
• M4: 1,235,529 km (0.089 R)
• M5: 1,614,909 km (0.104 R)
• M6: 2,479,286 km (0.089 R)
• M7: 3,086,204 km (0.085 R)
• M8: 3,739,947 km (0.11 R)
• M9: 7,187,579 km (0.089 R)
• M10: 9,186,656 km (0.113 R)
• M11: 10,873,072 km (0.037 R)
• M12: 13,658,734 km (0.041 R)
• M13: 15,215,749 km (0.053 R)
• M14: 15,908,686 km (0.099 R)
• M15: 16,491,220 km (0.115 R)
• M16: 19,326,100 km (0.078 R)
• M17: 20,973,771 km (0.108 R)
• M18: 26,206,854 km (0.083 R)
• M19: 29,267,028 km (0.103 R)
• M20: 30,239,414 km (0.088 R)
• M21: 36,086,298 km (0.106 R)
• M22: 38,114,695 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184

Radius: 4.5

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 9.41 AU - 9.83 AU

Year: 19574 Days

Day: 22.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,393,891 km

• M1: 78,838 km (0.119 R)
• M2: 297,700 km (0.1 R)
• M3: 442,660 km (0.048 R)
• M4: 584,778 km (0.112 R)
• M5: 732,581 km (0.103 R)
• M6: 2,584,752 km (0.114 R)
• M7: 3,057,780 km (0.077 R)
• M8: 3,461,096 km (0.047 R)
• M9: 4,315,599 km (0.102 R)
• M10: 7,334,185 km (0.108 R)
• M11: 8,960,763 km (0.075 R)
• M12: 9,536,116 km (0.11 R)
• M13: 11,354,778 km (0.113 R)
• M14: 11,744,330 km (0.101 R)
• M15: 17,873,355 km (0.091 R)
• M16: 20,285,770 km (0.11 R)
• M17: 22,818,762 km (0.093 R)
• M18: 27,495,640 km (0.071 R)
• M19: 28,197,403 km (0.103 R)
• M20: 30,481,015 km (0.117 R)
• M21: 34,247,740 km (0.059 R)
• M22: 37,942,209 km (0.087 R)
• M23: 43,764,558 km (0.117 R)
• M24: 45,551,205 km (0.117 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 340 - 14,644 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit