🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.7

Radius: 11

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.79 AU - 1.19 AU

Year: 680 Days

Day: 12.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,216,736 km

• M1: 136,882 km (0.109 R)
• M2: 671,395 km (0.108 R)
• M3: 1,104,780 km (0.085 R)
• M4: 1,578,258 km (0.083 R)
• M5: 2,328,640 km (0.043 R)
• M6: 2,715,201 km (0.089 R)
• M7: 3,493,110 km (0.06 R)
• M8: 3,867,255 km (0.064 R)
• M9: 4,462,804 km (0.111 R)
• M10: 5,227,548 km (0.078 R)
• M11: 6,429,866 km (0.069 R)
• M12: 7,475,555 km (0.105 R)
• M13: 7,880,517 km (0.114 R)
• M14: 8,451,681 km (0.109 R)
• M15: 8,865,170 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.4

Radius: 10.1

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.02 AU - 1.22 AU

Year: 818 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 46,216,736 km

• M1: 125,961 km (0.087 R)
• M2: 565,031 km (0.073 R)
• M3: 1,336,507 km (0.096 R)
• M4: 1,945,072 km (0.1 R)
• M5: 2,923,442 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.8

Radius: 12.4

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.95 AU - 1.51 AU

Year: 942 Days

Day: 14.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,216,736 km

• M1: 154,235 km (0.096 R)
• M2: 599,588 km (0.077 R)
• M3: 1,010,384 km (0.088 R)
• M4: 1,610,421 km (0.051 R)
• M5: 2,058,168 km (0.09 R)
• M6: 2,622,151 km (0.066 R)
• M7: 3,013,500 km (0.062 R)
• M8: 3,537,990 km (0.095 R)
• M9: 4,033,458 km (0.043 R)
• M10: 4,494,818 km (0.068 R)
• M11: 6,559,418 km (0.104 R)
• M12: 7,003,574 km (0.118 R)
• M13: 7,535,993 km (0.096 R)
• M14: 8,023,831 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.6

Radius: 8.7

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.22 AU - 1.82 AU

Year: 1294 Days

Day: 14.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,216,736 km

• M1: 108,458 km (0.075 R)
• M2: 588,817 km (0.095 R)
• M3: 1,097,450 km (0.106 R)
• M4: 1,535,473 km (0.104 R)
• M5: 1,822,850 km (0.105 R)
• M6: 2,228,260 km (0.093 R)
• M7: 2,599,712 km (0.092 R)
• M8: 2,874,074 km (0.033 R)
• M9: 3,234,456 km (0.086 R)
• M10: 3,892,088 km (0.101 R)
• M11: 4,220,754 km (0.087 R)
• M12: 5,096,799 km (0.069 R)
• M13: 6,999,236 km (0.049 R)
• M14: 8,845,124 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.2

Radius: 11.5

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.29 AU - 2.13 AU

Year: 1543 Days

Day: 10.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,216,736 km

• M1: 144,362 km (0.041 R)
• M2: 518,357 km (0.074 R)
• M3: 891,005 km (0.073 R)
• M4: 1,381,536 km (0.09 R)
• M5: 1,957,937 km (0.073 R)
• M6: 2,690,219 km (0.106 R)
• M7: 3,405,895 km (0.116 R)
• M8: 4,498,857 km (0.102 R)
• M9: 4,882,575 km (0.094 R)
• M10: 5,306,236 km (0.099 R)
• M11: 5,812,176 km (0.053 R)
• M12: 7,185,784 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.4

Radius: 11.3

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.12 AU - 3.2 AU

Year: 2995 Days

Day: 9.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,216,736 km

• M1: 141,071 km (0.057 R)
• M2: 615,894 km (0.037 R)
• M3: 1,061,247 km (0.095 R)
• M4: 1,595,760 km (0.103 R)
• M5: 2,035,429 km (0.092 R)
• M6: 2,414,210 km (0.118 R)
• M7: 2,809,448 km (0.068 R)
• M8: 3,421,902 km (0.055 R)
• M9: 3,962,698 km (0.118 R)
• M10: 4,891,551 km (0.104 R)
• M11: 5,604,385 km (0.029 R)
• M12: 8,521,244 km (0.111 R)
• M13: 8,924,560 km (0.111 R)
• M14: 10,136,901 km (0.091 R)
• M15: 10,938,896 km (0.116 R)
• M16: 11,700,349 km (0.052 R)
• M17: 13,508,987 km (0.109 R)
• M18: 15,896,569 km (0.099 R)
• M19: 16,716,814 km (0.097 R)
• M20: 18,552,978 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.4

Radius: 12.2

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.94 AU - 4.5 AU

Year: 4953 Days

Day: 10.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 83.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,216,736 km

• M1: 152,291 km (0.066 R)
• M2: 798,404 km (0.093 R)
• M3: 2,706,225 km (0.092 R)
• M4: 4,284,333 km (0.085 R)
• M5: 4,986,396 km (0.077 R)
• M6: 5,963,420 km (0.106 R)
• M7: 8,476,814 km (0.119 R)
• M8: 9,544,943 km (0.081 R)
• M9: 10,361,298 km (0.053 R)
• M10: 11,763,629 km (0.053 R)
• M11: 12,702,056 km (0.093 R)
• M12: 13,944,616 km (0.071 R)
• M13: 16,042,576 km (0.117 R)
• M14: 17,793,769 km (0.025 R)
• M15: 18,220,123 km (0.097 R)
• M16: 19,220,185 km (0.054 R)
• M17: 19,604,502 km (0.094 R)
• M18: 20,059,429 km (0.103 R)
• M19: 22,229,346 km (0.085 R)
• M20: 26,160,628 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.6

Radius: 12.6

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.21 AU - 5.79 AU

Year: 8903 Days

Day: 9.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 46,216,736 km

• M1: 156,779 km (0.085 R)
• M2: 595,549 km (0.118 R)
• M3: 1,327,232 km (0.033 R)
• M4: 2,234,843 km (0.111 R)
• M5: 2,704,131 km (0.026 R)
• M6: 3,717,507 km (0.076 R)
• M7: 4,298,246 km (0.115 R)
• M8: 5,411,404 km (0.118 R)
• M9: 6,018,472 km (0.053 R)
• M10: 6,411,466 km (0.105 R)
• M11: 10,105,635 km (0.093 R)
• M12: 12,287,820 km (0.114 R)
• M13: 14,196,838 km (0.094 R)
• M14: 15,222,182 km (0.112 R)
• M15: 18,821,357 km (0.041 R)
• M16: 19,433,212 km (0.109 R)
• M17: 21,021,194 km (0.085 R)
• M18: 25,182,857 km (0.094 R)
• M19: 25,645,713 km (0.103 R)
• M20: 26,493,185 km (0.064 R)
• M21: 28,045,861 km (0.076 R)
• M22: 31,013,284 km (0.085 R)
• M23: 31,759,778 km (0.061 R)
• M24: 34,410,502 km (0.059 R)
• M25: 37,806,224 km (0.116 R)
• M26: 38,291,520 km (0.107 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 15,252 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit