🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.57 AU - 0.73 AU

Year: 344 Days

Day: 30.1 Hours

Environment

Temp: -126 °C

Axial Tilt: 47 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.4

Radius: 10.7

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.86 AU - 0.86 AU

Year: 523 Days

Day: 7.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,989,924 km

• M1: 132,993 km (0.119 R)
• M2: 555,457 km (0.044 R)
• M3: 937,829 km (0.095 R)
• M4: 1,971,401 km (0.113 R)
• M5: 2,345,994 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.5

Radius: 9.1

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.62 AU - 2.56 AU

Year: 1982 Days

Day: 14.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,989,924 km

• M1: 113,246 km (0.116 R)
• M2: 539,001 km (0.119 R)
• M3: 1,007,542 km (0.114 R)
• M4: 1,339,200 km (0.098 R)
• M5: 1,645,128 km (0.107 R)
• M6: 2,253,393 km (0.047 R)
• M7: 3,019,184 km (0.084 R)
• M8: 3,389,738 km (0.096 R)
• M9: 4,393,241 km (0.081 R)
• M10: 5,537,964 km (0.032 R)
• M11: 5,882,188 km (0.061 R)
• M12: 6,487,760 km (0.049 R)
• M13: 7,214,657 km (0.071 R)
• M14: 8,495,214 km (0.078 R)
• M15: 10,292,633 km (0.077 R)
• M16: 12,563,528 km (0.077 R)
• M17: 13,038,801 km (0.095 R)
• M18: 13,941,175 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.4

Radius: 13.3

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.11 AU - 4.89 AU

Year: 6262 Days

Day: 5.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,989,924 km

• M1: 166,802 km (0.113 R)
• M2: 660,026 km (0.091 R)
• M3: 1,776,176 km (0.107 R)
• M4: 5,247,295 km (0.042 R)
• M5: 7,515,797 km (0.119 R)
• M6: 9,148,059 km (0.117 R)
• M7: 11,143,994 km (0.1 R)
• M8: 12,244,287 km (0.112 R)
• M9: 22,284,548 km (0.056 R)
• M10: 24,105,902 km (0.097 R)
• M11: 27,105,339 km (0.056 R)
• M12: 29,983,153 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.1

Radius: 12.3

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.53 AU - 5.39 AU

Year: 7247 Days

Day: 13.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,989,924 km

• M1: 153,787 km (0.051 R)
• M2: 759,508 km (0.091 R)
• M3: 1,293,423 km (0.045 R)
• M4: 2,468,514 km (0.107 R)
• M5: 2,861,957 km (0.106 R)
• M6: 3,612,489 km (0.111 R)
• M7: 4,443,057 km (0.11 R)
• M8: 5,159,331 km (0.115 R)
• M9: 5,980,175 km (0.08 R)
• M10: 9,083,882 km (0.076 R)
• M11: 9,951,400 km (0.111 R)
• M12: 12,081,823 km (0.119 R)
• M13: 14,658,198 km (0.107 R)
• M14: 16,471,773 km (0.111 R)
• M15: 18,002,458 km (0.112 R)
• M16: 19,562,016 km (0.106 R)
• M17: 20,872,942 km (0.058 R)
• M18: 23,523,966 km (0.063 R)
• M19: 25,005,733 km (0.036 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.7

Radius: 6.9

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 5.28 AU - 6.92 AU

Year: 9883 Days

Day: 17 Hours

Environment

Temp: -225 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,989,924 km

• M1: 85,869 km (0.095 R)
• M2: 380,427 km (0.104 R)
• M3: 946,207 km (0.089 R)
• M4: 1,326,185 km (0.098 R)
• M5: 1,790,387 km (0.067 R)
• M6: 2,408,825 km (0.076 R)
• M7: 2,674,511 km (0.066 R)
• M8: 4,490,629 km (0.073 R)
• M9: 5,235,626 km (0.107 R)
• M10: 7,849,101 km (0.083 R)
• M11: 8,884,767 km (0.11 R)
• M12: 9,829,777 km (0.096 R)
• M13: 10,326,741 km (0.107 R)
• M14: 10,935,455 km (0.12 R)
• M15: 12,851,953 km (0.072 R)
• M16: 14,747,208 km (0.059 R)
• M17: 15,639,709 km (0.033 R)
• M18: 16,379,321 km (0.079 R)
• M19: 17,994,529 km (0.068 R)
• M20: 20,357,877 km (0.078 R)
• M21: 21,090,457 km (0.114 R)
• M22: 21,916,537 km (0.094 R)
• M23: 25,102,822 km (0.113 R)
• M24: 28,313,043 km (0.111 R)
• M25: 30,725,907 km (0.114 R)
• M26: 32,178,652 km (0.1 R)
• M27: 32,573,590 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 190.8

Radius: 3.6

Gravity: 14.72 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.36 AU - 6.89 AU

Year: 9932 Days

Day: 24.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 64,989,924 km

• M1: 44,879 km (0.084 R)
• M2: 248,183 km (0.119 R)
• M3: 691,890 km (0.098 R)
• M4: 835,504 km (0.029 R)
• M5: 1,093,411 km (0.089 R)
• M6: 1,225,057 km (0.119 R)
• M7: 1,738,776 km (0.098 R)
• M8: 1,862,344 km (0.11 R)
• M9: 2,333,727 km (0.039 R)
• M10: 2,823,959 km (0.058 R)
• M11: 3,421,902 km (0.12 R)
• M12: 4,573,207 km (0.045 R)
• M13: 4,836,499 km (0.088 R)
• M14: 4,971,885 km (0.108 R)
• M15: 5,137,640 km (0.104 R)
• M16: 6,147,575 km (0.079 R)
• M17: 6,500,775 km (0.099 R)
• M18: 7,460,745 km (0.112 R)
• M19: 8,201,853 km (0.089 R)
• M20: 9,072,363 km (0.114 R)
• M21: 9,872,113 km (0.091 R)
• M22: 10,809,643 km (0.068 R)
• M23: 12,249,522 km (0.081 R)
• M24: 19,154,362 km (0.083 R)
• M25: 19,767,863 km (0.088 R)
• M26: 20,748,028 km (0.083 R)
• M27: 23,185,725 km (0.12 R)
• M28: 25,890,006 km (0.083 R)
• M29: 30,237,470 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 973

Radius: 4.2

Gravity: 55.16 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 6.33 AU - 9.61 AU

Year: 14760 Days

Day: 22.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,989,924 km

• M1: 80,484 km (0.108 R)
• M2: 220,208 km (0.095 R)
• M3: 585,825 km (0.062 R)
• M4: 1,955,693 km (0.108 R)
• M5: 3,281,728 km (0.106 R)
• M6: 3,792,156 km (0.093 R)
• M7: 8,882,224 km (0.085 R)
• M8: 10,921,393 km (0.105 R)
• M9: 13,046,580 km (0.103 R)
• M10: 13,741,312 km (0.111 R)
• M11: 14,533,732 km (0.11 R)
• M12: 16,367,353 km (0.084 R)
• M13: 18,093,414 km (0.105 R)
• M14: 19,756,493 km (0.117 R)
• M15: 21,328,318 km (0.075 R)
• M16: 29,616,489 km (0.091 R)
• M17: 29,972,233 km (0.09 R)
• M18: 30,210,991 km (0.042 R)
• M19: 36,057,874 km (0.067 R)
• M20: 37,146,049 km (0.085 R)
• M21: 44,293,386 km (0.08 R)
• M22: 52,824,055 km (0.059 R)
• M23: 59,707,053 km (0.05 R)
• M24: 62,192,472 km (0.055 R)
• M25: 65,344,799 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 410.8

Radius: 3.7

Gravity: 30.01 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.96 AU - 11.58 AU

Year: 18515 Days

Day: 24.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 64,989,924 km

• M1: 47,572 km (0.118 R)
• M2: 199,264 km (0.048 R)
• M3: 419,323 km (0.087 R)
• M4: 767,886 km (0.094 R)
• M5: 1,055,862 km (0.061 R)
• M6: 1,931,458 km (0.119 R)
• M7: 3,031,900 km (0.104 R)
• M8: 3,467,679 km (0.113 R)
• M9: 4,462,205 km (0.107 R)
• M10: 5,449,102 km (0.078 R)
• M11: 7,167,384 km (0.104 R)
• M12: 7,796,742 km (0.099 R)
• M13: 12,114,286 km (0.112 R)
• M14: 12,554,253 km (0.104 R)
• M15: 13,465,903 km (0.064 R)
• M16: 14,212,546 km (0.067 R)
• M17: 15,058,073 km (0.1 R)
• M18: 17,715,081 km (0.12 R)
• M19: 21,025,382 km (0.079 R)
• M20: 24,031,552 km (0.081 R)
• M21: 25,330,510 km (0.101 R)
• M22: 30,995,033 km (0.089 R)
• M23: 31,580,410 km (0.051 R)
• M24: 36,143,444 km (0.038 R)
• M25: 38,245,593 km (0.066 R)
• M26: 40,012,643 km (0.09 R)
• M27: 41,691,281 km (0.11 R)
• M28: 46,396,134 km (0.085 R)
• M29: 50,469,684 km (0.096 R)
• M30: 53,258,338 km (0.084 R)
• M31: 55,287,334 km (0.102 R)
• M32: 60,766,356 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 488.5

Radius: 3.2

Gravity: 47.71 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 7.03 AU - 11.63 AU

Year: 18695 Days

Day: 22.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 64,989,924 km

• M1: 41,139 km (0.046 R)
• M2: 210,484 km (0.088 R)
• M3: 575,204 km (0.057 R)
• M4: 960,269 km (0.116 R)
• M5: 1,276,070 km (0.028 R)
• M6: 1,375,852 km (0.11 R)
• M7: 1,591,273 km (0.043 R)
• M8: 2,188,168 km (0.1 R)
• M9: 2,570,091 km (0.037 R)
• M10: 4,749,433 km (0.097 R)
• M11: 4,920,872 km (0.063 R)
• M12: 5,132,105 km (0.057 R)
• M13: 5,572,521 km (0.038 R)
• M14: 6,403,088 km (0.097 R)
• M15: 10,041,458 km (0.092 R)
• M16: 11,816,586 km (0.068 R)
• M17: 13,583,636 km (0.096 R)
• M18: 15,221,583 km (0.076 R)
• M19: 18,041,952 km (0.082 R)
• M20: 27,440,588 km (0.096 R)
• M21: 28,439,004 km (0.094 R)
• M22: 30,156,238 km (0.092 R)
• M23: 31,578,764 km (0.025 R)
• M24: 33,169,737 km (0.064 R)
• M25: 48,022,562 km (0.06 R)
• M26: 51,112,057 km (0.082 R)
• M27: 53,642,655 km (0.085 R)
• M28: 55,726,404 km (0.106 R)
• M29: 60,424,824 km (0.116 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: 492 - 16,369 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit