🌌 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: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.48 AU - 0.66 AU

Year: 282 Days

Day: 30 Hours

Environment

Temp: -129 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 89,392,307 km

• M1: 79,436 km (0.091 R)
• M2: 462,108 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.7

Radius: 14.6

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.56 AU - 0.9 AU

Year: 409 Days

Day: 13.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,392,307 km

• M1: 181,761 km (0.09 R)
• M2: 704,756 km (0.097 R)
• M3: 1,171,202 km (0.086 R)
• M4: 1,666,670 km (0.057 R)
• M5: 2,261,172 km (0.095 R)
• M6: 2,818,723 km (0.116 R)
• M7: 3,409,335 km (0.072 R)
• M8: 3,899,418 km (0.051 R)
• M9: 4,842,333 km (0.098 R)
• M10: 5,513,878 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.8

Radius: 13.3

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.7 AU - 0.82 AU

Year: 435 Days

Day: 14.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,392,307 km

• M1: 165,455 km (0.098 R)
• M2: 583,132 km (0.096 R)
• M3: 1,049,728 km (0.07 R)
• M4: 1,575,415 km (0.114 R)
• M5: 3,581,074 km (0.078 R)
• M6: 4,112,595 km (0.098 R)
• M7: 4,741,654 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.5

Radius: 12.8

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.3 AU - 1.92 AU

Year: 1340 Days

Day: 11.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 89,392,307 km

• M1: 171,888 km (0.118 R)
• M2: 854,802 km (0.119 R)
• M3: 1,337,255 km (0.118 R)
• M4: 2,303,658 km (0.104 R)
• M5: 2,999,138 km (0.116 R)
• M6: 3,582,420 km (0.112 R)
• M7: 5,613,511 km (0.104 R)
• M8: 6,834,528 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.7

Radius: 13.5

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.59 AU - 3.95 AU

Year: 4802 Days

Day: 13.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,392,307 km

• M1: 168,298 km (0.08 R)
• M2: 599,887 km (0.106 R)
• M3: 1,251,536 km (0.098 R)
• M4: 2,078,513 km (0.097 R)
• M5: 2,521,472 km (0.08 R)
• M6: 3,559,233 km (0.072 R)
• M7: 4,422,861 km (0.101 R)
• M8: 5,110,263 km (0.075 R)
• M9: 6,274,135 km (0.072 R)
• M10: 7,754,555 km (0.114 R)
• M11: 8,322,429 km (0.045 R)
• M12: 8,836,896 km (0.059 R)
• M13: 10,418,594 km (0.12 R)
• M14: 11,158,206 km (0.091 R)
• M15: 12,131,639 km (0.117 R)
• M16: 13,161,022 km (0.082 R)
• M17: 13,806,088 km (0.115 R)
• M18: 14,528,646 km (0.079 R)
• M19: 20,241,639 km (0.115 R)
• M20: 22,589,578 km (0.059 R)
• M21: 23,671,769 km (0.104 R)
• M22: 24,465,685 km (0.06 R)
• M23: 26,275,071 km (0.12 R)
• M24: 27,126,283 km (0.12 R)
• M25: 28,794,299 km (0.12 R)
• M26: 30,529,634 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.8

Radius: 9.1

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.76 AU - 3.82 AU

Year: 4840 Days

Day: 12.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 89,392,307 km

• M1: 113,395 km (0.065 R)
• M2: 438,771 km (0.102 R)
• M3: 1,029,233 km (0.09 R)
• M4: 1,508,695 km (0.094 R)
• M5: 1,834,519 km (0.077 R)
• M6: 2,954,408 km (0.116 R)
• M7: 3,469,773 km (0.085 R)
• M8: 3,771,512 km (0.111 R)
• M9: 4,090,754 km (0.106 R)
• M10: 4,757,960 km (0.103 R)
• M11: 5,186,409 km (0.098 R)
• M12: 5,669,759 km (0.102 R)
• M13: 6,759,580 km (0.118 R)
• M14: 7,095,128 km (0.115 R)
• M15: 8,706,297 km (0.071 R)
• M16: 9,023,594 km (0.027 R)
• M17: 10,282,610 km (0.12 R)
• M18: 11,560,026 km (0.112 R)
• M19: 17,736,623 km (0.094 R)
• M20: 18,118,845 km (0.091 R)
• M21: 20,319,879 km (0.095 R)
• M22: 23,447,821 km (0.109 R)
• M23: 25,245,987 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266

Radius: 4.9

Gravity: 11.08 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.47 AU - 10.85 AU

Year: 18187 Days

Day: 22.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 89,392,307 km

• M1: 62,532 km (0.043 R)
• M2: 379,829 km (0.088 R)
• M3: 762,500 km (0.079 R)
• M4: 944,262 km (0.063 R)
• M5: 1,343,389 km (0.113 R)
• M6: 1,581,549 km (0.047 R)
• M7: 1,965,417 km (0.053 R)
• M8: 2,350,183 km (0.108 R)
• M9: 3,341,867 km (0.117 R)
• M10: 4,027,923 km (0.101 R)
• M11: 4,835,003 km (0.042 R)
• M12: 6,723,676 km (0.117 R)
• M13: 7,210,917 km (0.088 R)
• M14: 7,896,823 km (0.054 R)
• M15: 8,439,265 km (0.072 R)
• M16: 11,190,070 km (0.067 R)
• M17: 12,524,184 km (0.04 R)
• M18: 13,198,272 km (0.078 R)
• M19: 14,287,195 km (0.025 R)
• M20: 16,861,774 km (0.086 R)
• M21: 17,758,913 km (0.096 R)
• M22: 18,064,990 km (0.109 R)
• M23: 18,452,299 km (0.072 R)
• M24: 19,163,637 km (0.11 R)
• M25: 23,820,020 km (0.105 R)
• M26: 25,817,451 km (0.106 R)
• M27: 31,460,731 km (0.097 R)
• M28: 37,496,257 km (0.083 R)
• M29: 41,786,724 km (0.061 R)
• M30: 42,056,749 km (0.044 R)
• M31: 43,011,183 km (0.092 R)
• M32: 45,246,774 km (0.086 R)
• M33: 46,973,432 km (0.087 R)
• M34: 48,743,624 km (0.104 R)
• M35: 50,252,169 km (0.078 R)
• M36: 50,557,648 km (0.087 R)
• M37: 51,481,265 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.7

Radius: 5.6

Gravity: 24.74 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 9.28 AU - 12.72 AU

Year: 23933 Days

Day: 20.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 89,392,307 km

• M1: 72,854 km (0.088 R)
• M2: 294,259 km (0.118 R)
• M3: 1,258,716 km (0.085 R)
• M4: 2,051,585 km (0.084 R)
• M5: 2,730,610 km (0.099 R)
• M6: 3,611,442 km (0.114 R)
• M7: 5,915,848 km (0.083 R)
• M8: 6,316,321 km (0.104 R)
• M9: 9,886,474 km (0.047 R)
• M10: 12,701,757 km (0.101 R)
• M11: 13,367,767 km (0.11 R)
• M12: 18,321,550 km (0.093 R)
• M13: 18,980,080 km (0.097 R)
• M14: 21,152,391 km (0.118 R)
• M15: 22,298,311 km (0.087 R)
• M16: 22,725,113 km (0.116 R)
• M17: 23,485,071 km (0.054 R)
• M18: 24,826,963 km (0.03 R)
• M19: 26,219,271 km (0.04 R)
• M20: 26,934,648 km (0.108 R)
• M21: 27,540,519 km (0.06 R)
• M22: 27,908,530 km (0.077 R)
• M23: 30,315,111 km (0.057 R)
• M24: 32,446,133 km (0.113 R)
• M25: 33,548,220 km (0.104 R)
• M26: 39,902,539 km (0.112 R)
• M27: 44,612,778 km (0.079 R)
• M28: 49,861,868 km (0.061 R)
• M29: 53,580,871 km (0.112 R)
• M30: 56,883,842 km (0.104 R)
• M31: 57,082,209 km (0.061 R)
• M32: 66,277,242 km (0.074 R)
• M33: 68,272,130 km (0.117 R)
• M34: 70,078,674 km (0.107 R)
• M35: 76,170,000 km (0.085 R)
• M36: 78,849,896 km (0.071 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 315 - 15,888 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit