🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.7

Radius: 10

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.52 AU - 0.52 AU

Year: 259 Days

Day: 7.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 34,685,612 km

• M1: 124,316 km (0.117 R)
• M2: 525,687 km (0.101 R)
• M3: 1,108,969 km (0.12 R)
• M4: 1,461,122 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.7

Radius: 13.8

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.74 AU - 0.74 AU

Year: 439 Days

Day: 5.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 68.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,685,612 km

• M1: 171,589 km (0.109 R)
• M2: 675,434 km (0.104 R)
• M3: 1,114,504 km (0.078 R)
• M4: 1,639,443 km (0.076 R)
• M5: 2,119,203 km (0.105 R)
• M6: 2,584,602 km (0.031 R)
• M7: 3,220,393 km (0.095 R)
• M8: 3,764,331 km (0.101 R)
• M9: 4,512,470 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.7

Radius: 11.4

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.96 AU - 1.18 AU

Year: 764 Days

Day: 11.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,685,612 km

• M1: 142,118 km (0.085 R)
• M2: 518,955 km (0.091 R)
• M3: 885,320 km (0.037 R)
• M4: 1,500,915 km (0.111 R)
• M5: 1,963,771 km (0.026 R)
• M6: 2,881,554 km (0.079 R)
• M7: 3,288,012 km (0.095 R)
• M8: 3,784,527 km (0.042 R)
• M9: 4,189,339 km (0.058 R)
• M10: 4,820,492 km (0.059 R)
• M11: 5,264,798 km (0.088 R)
• M12: 5,946,964 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.6

Radius: 10.8

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.92 AU - 2.94 AU

Year: 2615 Days

Day: 10.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,685,612 km

• M1: 152,440 km (0.095 R)
• M2: 501,302 km (0.12 R)
• M3: 1,331,122 km (0.088 R)
• M4: 1,761,216 km (0.071 R)
• M5: 2,752,451 km (0.107 R)
• M6: 3,395,572 km (0.111 R)
• M7: 3,848,854 km (0.111 R)
• M8: 4,535,658 km (0.106 R)
• M9: 5,434,292 km (0.105 R)
• M10: 7,922,105 km (0.038 R)
• M11: 9,940,629 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775

Radius: 14.5

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.99 AU - 3.79 AU

Year: 4308 Days

Day: 6.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,685,612 km

• M1: 180,265 km (0.06 R)
• M2: 975,677 km (0.112 R)
• M3: 1,770,940 km (0.057 R)
• M4: 2,262,817 km (0.097 R)
• M5: 2,777,434 km (0.1 R)
• M6: 4,047,370 km (0.107 R)
• M7: 5,732,740 km (0.036 R)
• M8: 6,765,713 km (0.047 R)
• M9: 7,225,727 km (0.113 R)
• M10: 8,619,231 km (0.076 R)
• M11: 9,240,212 km (0.092 R)
• M12: 9,807,936 km (0.073 R)
• M13: 12,657,177 km (0.078 R)
• M14: 15,281,722 km (0.113 R)
• M15: 18,503,611 km (0.117 R)
• M16: 28,152,823 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.4

Radius: 14.2

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.59 AU - 4.77 AU

Year: 5899 Days

Day: 5.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 34,685,612 km

• M1: 176,525 km (0.032 R)
• M2: 638,334 km (0.08 R)
• M3: 1,114,205 km (0.12 R)
• M4: 1,722,021 km (0.087 R)
• M5: 2,272,242 km (0.08 R)
• M6: 4,492,424 km (0.118 R)
• M7: 5,727,953 km (0.032 R)
• M8: 7,041,273 km (0.073 R)
• M9: 7,569,203 km (0.101 R)
• M10: 8,507,781 km (0.035 R)
• M11: 9,189,498 km (0.057 R)
• M12: 9,907,418 km (0.071 R)
• M13: 11,312,741 km (0.069 R)
• M14: 12,540,042 km (0.106 R)
• M15: 13,530,679 km (0.054 R)
• M16: 14,127,724 km (0.099 R)
• M17: 14,855,966 km (0.04 R)
• M18: 16,145,350 km (0.063 R)
• M19: 16,755,560 km (0.106 R)
• M20: 17,763,850 km (0.095 R)
• M21: 20,320,776 km (0.076 R)
• M22: 26,071,169 km (0.062 R)
• M23: 27,082,151 km (0.085 R)
• M24: 30,734,284 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.4

Radius: 11.3

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.7 AU - 5.26 AU

Year: 6545 Days

Day: 7.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 34,685,612 km

• M1: 140,472 km (0.09 R)
• M2: 663,317 km (0.12 R)
• M3: 1,215,483 km (0.074 R)
• M4: 1,598,004 km (0.112 R)
• M5: 2,403,140 km (0.088 R)
• M6: 3,875,183 km (0.077 R)
• M7: 4,888,858 km (0.097 R)
• M8: 5,534,224 km (0.11 R)
• M9: 6,573,480 km (0.051 R)
• M10: 7,623,507 km (0.099 R)
• M11: 8,089,505 km (0.107 R)
• M12: 8,451,233 km (0.087 R)
• M13: 9,207,599 km (0.08 R)
• M14: 9,736,577 km (0.117 R)
• M15: 10,285,602 km (0.089 R)
• M16: 11,197,251 km (0.079 R)
• M17: 11,698,254 km (0.115 R)
• M18: 13,910,508 km (0.109 R)
• M19: 14,607,634 km (0.075 R)
• M20: 15,145,588 km (0.116 R)
• M21: 16,324,718 km (0.117 R)
• M22: 16,839,185 km (0.105 R)
• M23: 17,765,495 km (0.113 R)
• M24: 20,898,374 km (0.116 R)
• M25: 23,234,494 km (0.097 R)
• M26: 25,825,978 km (0.119 R)
• M27: 27,236,387 km (0.082 R)
• M28: 31,675,853 km (0.082 R)
• M29: 35,386,329 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.3

Radius: 8.4

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.71 AU - 5.05 AU

Year: 7441 Days

Day: 7.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,685,612 km

• M1: 199,264 km (0.119 R)
• M2: 558,150 km (0.104 R)
• M3: 935,136 km (0.107 R)
• M4: 1,951,205 km (0.026 R)
• M5: 2,592,082 km (0.117 R)
• M6: 3,249,266 km (0.07 R)
• M7: 5,696,986 km (0.083 R)
• M8: 7,193,563 km (0.118 R)
• M9: 11,712,616 km (0.099 R)
• M10: 13,061,689 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 76.5

Radius: 7.9

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.95 AU - 10.91 AU

Year: 18420 Days

Day: 24.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 34,685,612 km

• M1: 98,585 km (0.094 R)
• M2: 370,853 km (0.052 R)
• M3: 734,675 km (0.079 R)
• M4: 1,221,018 km (0.097 R)
• M5: 2,041,413 km (0.119 R)
• M6: 3,377,770 km (0.086 R)
• M7: 3,995,460 km (0.103 R)
• M8: 4,526,233 km (0.117 R)
• M9: 4,822,587 km (0.091 R)
• M10: 5,365,028 km (0.077 R)
• M11: 7,795,545 km (0.049 R)
• M12: 10,269,744 km (0.045 R)
• M13: 11,118,263 km (0.076 R)
• M14: 12,740,802 km (0.066 R)
• M15: 16,073,842 km (0.036 R)
• M16: 19,803,467 km (0.1 R)
• M17: 20,452,273 km (0.104 R)
• M18: 20,892,539 km (0.074 R)
• M19: 26,420,929 km (0.09 R)
• M20: 28,279,383 km (0.098 R)
• M21: 31,959,042 km (0.08 R)
• M22: 33,658,324 km (0.053 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 16,474 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit