🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.9

Radius: 12.9

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.58 AU - 0.86 AU

Year: 401 Days

Day: 8.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 22,561,843 km

• M1: 160,369 km (0.08 R)
• M2: 691,292 km (0.078 R)
• M3: 1,123,181 km (0.059 R)
• M4: 3,448,680 km (0.069 R)
• M5: 4,213,125 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.2

Radius: 13.6

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.93 AU - 0.97 AU

Year: 607 Days

Day: 9.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,561,843 km

• M1: 171,738 km (0.069 R)
• M2: 728,691 km (0.088 R)
• M3: 1,390,662 km (0.06 R)
• M4: 2,023,610 km (0.086 R)
• M5: 3,121,659 km (0.102 R)
• M6: 3,719,452 km (0.119 R)
• M7: 4,751,827 km (0.08 R)
• M8: 6,352,823 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.4

Radius: 9.8

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.74 AU - 1.22 AU

Year: 636 Days

Day: 6.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,561,843 km

• M1: 122,072 km (0.072 R)
• M2: 449,990 km (0.096 R)
• M3: 776,563 km (0.116 R)
• M4: 1,201,869 km (0.074 R)
• M5: 1,748,650 km (0.04 R)
• M6: 2,969,368 km (0.089 R)
• M7: 3,277,689 km (0.069 R)
• M8: 3,821,178 km (0.082 R)
• M9: 5,039,204 km (0.102 R)
• M10: 5,532,728 km (0.082 R)
• M11: 6,058,415 km (0.097 R)
• M12: 6,636,910 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.4

Radius: 11.6

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.64 AU - 1.76 AU

Year: 1454 Days

Day: 9.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,561,843 km

• M1: 144,512 km (0.069 R)
• M2: 514,916 km (0.116 R)
• M3: 1,159,683 km (0.058 R)
• M4: 1,711,549 km (0.072 R)
• M5: 2,138,801 km (0.111 R)
• M6: 2,521,622 km (0.065 R)
• M7: 2,936,307 km (0.117 R)
• M8: 3,603,962 km (0.109 R)
• M9: 4,277,901 km (0.12 R)
• M10: 5,116,696 km (0.057 R)
• M11: 5,697,285 km (0.047 R)
• M12: 6,441,984 km (0.045 R)
• M13: 7,382,655 km (0.099 R)
• M14: 8,916,781 km (0.072 R)
• M15: 9,535,817 km (0.116 R)
• M16: 9,986,107 km (0.092 R)
• M17: 10,619,803 km (0.114 R)
• M18: 11,602,362 km (0.097 R)
• M19: 11,967,530 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.8

Radius: 12.5

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.77 AU - 2.35 AU

Year: 1940 Days

Day: 12.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 22,561,843 km

• M1: 155,582 km (0.089 R)
• M2: 620,831 km (0.098 R)
• M3: 1,132,605 km (0.108 R)
• M4: 1,599,949 km (0.09 R)
• M5: 2,052,184 km (0.086 R)
• M6: 2,507,709 km (0.092 R)
• M7: 2,999,886 km (0.078 R)
• M8: 4,220,006 km (0.082 R)
• M9: 5,097,248 km (0.064 R)
• M10: 5,674,846 km (0.069 R)
• M11: 6,067,241 km (0.104 R)
• M12: 7,100,513 km (0.072 R)
• M13: 7,912,231 km (0.077 R)
• M14: 8,434,627 km (0.036 R)
• M15: 8,947,299 km (0.1 R)
• M16: 9,379,039 km (0.118 R)
• M17: 10,795,880 km (0.116 R)
• M18: 12,844,922 km (0.083 R)
• M19: 13,654,695 km (0.082 R)
• M20: 15,141,698 km (0.107 R)
• M21: 15,900,309 km (0.081 R)
• M22: 16,684,202 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.4

Radius: 13.4

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.04 AU - 3.3 AU

Year: 2862 Days

Day: 12.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,561,843 km

• M1: 166,652 km (0.081 R)
• M2: 602,879 km (0.104 R)
• M3: 1,533,977 km (0.079 R)
• M4: 2,124,290 km (0.114 R)
• M5: 2,680,195 km (0.086 R)
• M6: 3,113,281 km (0.081 R)
• M7: 3,851,996 km (0.114 R)
• M8: 4,462,205 km (0.106 R)
• M9: 6,011,441 km (0.106 R)
• M10: 7,813,347 km (0.11 R)
• M11: 8,882,822 km (0.114 R)
• M12: 10,111,619 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.1

Radius: 8.5

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.31 AU - 3.83 AU

Year: 3529 Days

Day: 9.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,561,843 km

• M1: 106,813 km (0.045 R)
• M2: 561,590 km (0.092 R)
• M3: 1,244,804 km (0.036 R)
• M4: 2,063,852 km (0.041 R)
• M5: 2,516,087 km (0.091 R)
• M6: 3,695,666 km (0.041 R)
• M7: 4,071,456 km (0.075 R)
• M8: 5,017,064 km (0.073 R)
• M9: 5,707,159 km (0.117 R)
• M10: 6,048,392 km (0.088 R)
• M11: 7,397,316 km (0.116 R)
• M12: 8,126,007 km (0.069 R)
• M13: 13,261,402 km (0.104 R)
• M14: 15,465,877 km (0.116 R)
• M15: 18,239,421 km (0.094 R)
• M16: 19,330,738 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.6

Radius: 9.1

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.61 AU - 4.89 AU

Year: 5748 Days

Day: 10.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 110.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,561,843 km

• M1: 114,442 km (0.11 R)
• M2: 610,958 km (0.059 R)
• M3: 1,539,512 km (0.083 R)
• M4: 2,171,862 km (0.076 R)
• M5: 2,916,111 km (0.12 R)
• M6: 3,559,382 km (0.057 R)
• M7: 3,883,411 km (0.1 R)
• M8: 4,638,432 km (0.085 R)
• M9: 5,702,222 km (0.101 R)
• M10: 7,657,765 km (0.094 R)
• M11: 8,165,949 km (0.095 R)
• M12: 11,788,163 km (0.06 R)
• M13: 12,931,988 km (0.116 R)
• M14: 13,217,271 km (0.105 R)
• M15: 14,198,484 km (0.076 R)
• M16: 14,861,800 km (0.054 R)
• M17: 15,439,099 km (0.109 R)
• M18: 16,750,474 km (0.072 R)
• M19: 18,492,242 km (0.117 R)
• M20: 19,345,099 km (0.05 R)
• M21: 21,725,052 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 54.7

Radius: 5

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.18 AU - 7.26 AU

Year: 11428 Days

Day: 17.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,561,843 km

• M1: 234,270 km (0.115 R)
• M2: 397,182 km (0.088 R)
• M3: 1,286,990 km (0.118 R)
• M4: 1,939,836 km (0.116 R)
• M5: 2,223,772 km (0.104 R)
• M6: 3,355,331 km (0.087 R)
• M7: 6,298,370 km (0.114 R)
• M8: 14,473,295 km (0.047 R)
• M9: 20,407,094 km (0.052 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 436 - 13,636 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit