🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.9

Radius: 14.7

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.82 AU - 0.96 AU

Year: 560 Days

Day: 5.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,736,411 km

• M1: 183,108 km (0.118 R)
• M2: 769,232 km (0.028 R)
• M3: 1,302,848 km (0.059 R)
• M4: 1,803,253 km (0.085 R)
• M5: 2,261,172 km (0.099 R)
• M6: 3,188,978 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.4

Radius: 13.6

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.9 AU - 0.92 AU

Year: 579 Days

Day: 12.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,736,411 km

• M1: 170,841 km (0.109 R)
• M2: 599,439 km (0.106 R)
• M3: 1,035,965 km (0.1 R)
• M4: 1,787,395 km (0.077 R)
• M5: 2,254,141 km (0.038 R)
• M6: 2,773,993 km (0.089 R)
• M7: 3,210,670 km (0.103 R)
• M8: 3,740,994 km (0.12 R)
• M9: 4,329,662 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.4

Radius: 11

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.73 AU - 1.21 AU

Year: 637 Days

Day: 10.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,736,411 km

• M1: 136,882 km (0.056 R)
• M2: 767,736 km (0.111 R)
• M3: 1,426,864 km (0.083 R)
• M4: 2,266,258 km (0.115 R)
• M5: 3,283,374 km (0.092 R)
• M6: 3,752,363 km (0.085 R)
• M7: 4,185,748 km (0.084 R)
• M8: 5,047,731 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.9

Radius: 13.3

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.53 AU - 3.29 AU

Year: 3310 Days

Day: 6 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,736,411 km

• M1: 165,605 km (0.109 R)
• M2: 601,982 km (0.081 R)
• M3: 1,025,194 km (0.117 R)
• M4: 1,638,994 km (0.055 R)
• M5: 2,178,594 km (0.119 R)
• M6: 3,131,233 km (0.11 R)
• M7: 3,658,416 km (0.107 R)
• M8: 4,324,874 km (0.042 R)
• M9: 6,602,652 km (0.085 R)
• M10: 7,593,588 km (0.101 R)
• M11: 8,551,912 km (0.114 R)
• M12: 10,671,564 km (0.116 R)
• M13: 11,515,745 km (0.116 R)
• M14: 12,696,072 km (0.076 R)
• M15: 13,381,081 km (0.106 R)
• M16: 14,226,159 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.6

Radius: 9.8

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.88 AU - 3.4 AU

Year: 3710 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,736,411 km

• M1: 128,505 km (0.105 R)
• M2: 573,857 km (0.096 R)
• M3: 1,071,869 km (0.118 R)
• M4: 2,032,885 km (0.112 R)
• M5: 2,552,588 km (0.096 R)
• M6: 3,307,459 km (0.086 R)
• M7: 3,692,674 km (0.115 R)
• M8: 4,060,236 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33

Radius: 12.5

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.65 AU - 5.13 AU

Year: 6134 Days

Day: 5.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,736,411 km

• M1: 161,865 km (0.119 R)
• M2: 1,178,981 km (0.092 R)
• M3: 2,507,260 km (0.109 R)
• M4: 3,354,583 km (0.101 R)
• M5: 4,048,418 km (0.11 R)
• M6: 4,439,167 km (0.061 R)
• M7: 5,235,626 km (0.106 R)
• M8: 8,344,270 km (0.116 R)
• M9: 8,922,167 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.2

Radius: 11.3

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.83 AU - 6.29 AU

Year: 8743 Days

Day: 11.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,736,411 km

• M1: 140,622 km (0.119 R)
• M2: 506,838 km (0.101 R)
• M3: 1,112,859 km (0.058 R)
• M4: 1,626,428 km (0.105 R)
• M5: 2,582,209 km (0.037 R)
• M6: 4,122,917 km (0.102 R)
• M7: 4,493,322 km (0.09 R)
• M8: 5,043,243 km (0.093 R)
• M9: 5,401,082 km (0.114 R)
• M10: 6,577,968 km (0.069 R)
• M11: 7,536,142 km (0.105 R)
• M12: 9,288,382 km (0.069 R)
• M13: 9,778,315 km (0.106 R)
• M14: 10,233,990 km (0.057 R)
• M15: 11,242,579 km (0.086 R)
• M16: 12,788,224 km (0.077 R)
• M17: 14,406,275 km (0.11 R)
• M18: 17,083,329 km (0.096 R)
• M19: 22,779,417 km (0.111 R)
• M20: 25,053,903 km (0.072 R)
• M21: 25,621,478 km (0.064 R)
• M22: 28,180,798 km (0.11 R)
• M23: 38,604,628 km (0.115 R)
• M24: 39,489,350 km (0.046 R)
• M25: 42,491,480 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 809.3

Radius: 3.2

Gravity: 79.03 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 8.14 AU - 11.12 AU

Year: 19928 Days

Day: 20.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 31,736,411 km

• M1: 54,603 km (0.09 R)
• M2: 269,426 km (0.081 R)
• M3: 589,864 km (0.099 R)
• M4: 751,131 km (0.096 R)
• M5: 859,290 km (0.105 R)
• M6: 1,148,612 km (0.093 R)
• M7: 2,546,754 km (0.109 R)
• M8: 3,109,541 km (0.029 R)
• M9: 3,390,935 km (0.117 R)
• M10: 4,475,669 km (0.049 R)
• M11: 6,372,271 km (0.115 R)
• M12: 7,795,844 km (0.098 R)
• M13: 8,473,672 km (0.059 R)
• M14: 9,475,828 km (0.104 R)
• M15: 10,005,405 km (0.077 R)
• M16: 11,579,623 km (0.079 R)
• M17: 12,390,743 km (0.092 R)
• M18: 13,238,963 km (0.112 R)
• M19: 16,680,462 km (0.071 R)
• M20: 17,277,656 km (0.098 R)
• M21: 21,662,071 km (0.028 R)
• M22: 22,578,358 km (0.092 R)
• M23: 24,488,124 km (0.094 R)
• M24: 27,198,090 km (0.092 R)
• M25: 27,432,510 km (0.076 R)
• M26: 28,383,802 km (0.115 R)
• M27: 28,989,524 km (0.07 R)
• M28: 29,603,623 km (0.118 R)
• M29: 29,727,490 km (0.034 R)
• M30: 34,832,817 km (0.116 R)
• M31: 37,229,824 km (0.089 R)
• M32: 37,809,366 km (0.03 R)
• M33: 39,885,335 km (0.029 R)
• M34: 40,187,972 km (0.111 R)
• M35: 43,939,737 km (0.07 R)
• M36: 45,240,341 km (0.09 R)
• M37: 46,566,526 km (0.107 R)
• M38: 47,918,292 km (0.105 R)
• M39: 49,122,256 km (0.078 R)
• M40: 53,220,340 km (0.073 R)
• M41: 61,080,063 km (0.09 R)
• M42: 66,444,792 km (0.112 R)
• M43: 68,588,978 km (0.096 R)
• M44: 70,557,836 km (0.103 R)
• M45: 76,689,852 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 46.5

Radius: 7.1

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 7.71 AU - 12.03 AU

Year: 20678 Days

Day: 15.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,736,411 km

• M1: 123,867 km (0.05 R)
• M2: 2,144,336 km (0.1 R)
• M3: 3,437,460 km (0.086 R)
• M4: 4,386,060 km (0.097 R)
• M5: 4,989,089 km (0.059 R)
• M6: 7,777,892 km (0.118 R)
• M7: 8,739,657 km (0.095 R)
• M8: 9,311,570 km (0.093 R)
• M9: 12,964,899 km (0.085 R)
• M10: 13,227,294 km (0.115 R)
• M11: 17,410,649 km (0.043 R)
• M12: 30,796,367 km (0.057 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 179 - 17,376 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit