🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.9

Radius: 14.2

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.62 AU - 0.72 AU

Year: 379 Days

Day: 9.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,452,047 km

• M1: 176,525 km (0.105 R)
• M2: 707,299 km (0.12 R)
• M3: 1,151,904 km (0.091 R)
• M4: 1,786,498 km (0.1 R)
• M5: 2,229,008 km (0.108 R)
• M6: 2,884,995 km (0.043 R)
• M7: 3,445,239 km (0.039 R)
• M8: 3,962,997 km (0.077 R)
• M9: 4,801,643 km (0.087 R)
• M10: 5,248,492 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.5

Radius: 10.6

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.65 AU - 0.77 AU

Year: 413 Days

Day: 6.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,452,047 km

• M1: 131,796 km (0.106 R)
• M2: 545,434 km (0.063 R)
• M3: 967,001 km (0.107 R)
• M4: 1,333,216 km (0.067 R)
• M5: 1,793,529 km (0.077 R)
• M6: 2,175,153 km (0.073 R)
• M7: 2,783,717 km (0.048 R)
• M8: 3,269,910 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.7

Radius: 13.3

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.88 AU - 1.13 AU

Year: 690 Days

Day: 13.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,452,047 km

• M1: 165,904 km (0.044 R)
• M2: 730,038 km (0.05 R)
• M3: 1,985,463 km (0.12 R)
• M4: 2,406,132 km (0.106 R)
• M5: 3,021,877 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.6

Radius: 10.5

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.46 AU - 2.16 AU

Year: 1681 Days

Day: 7.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,452,047 km

• M1: 130,599 km (0.115 R)
• M2: 482,902 km (0.075 R)
• M3: 950,096 km (0.11 R)
• M4: 1,602,941 km (0.075 R)
• M5: 2,053,680 km (0.042 R)
• M6: 3,181,797 km (0.111 R)
• M7: 4,377,533 km (0.098 R)
• M8: 4,914,589 km (0.116 R)
• M9: 5,778,367 km (0.077 R)
• M10: 7,572,644 km (0.047 R)
• M11: 9,340,891 km (0.034 R)
• M12: 9,711,445 km (0.087 R)
• M13: 11,105,398 km (0.107 R)
• M14: 11,598,473 km (0.081 R)
• M15: 13,461,265 km (0.093 R)
• M16: 15,052,239 km (0.042 R)
• M17: 16,036,293 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.8

Radius: 13.2

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.71 AU - 4.61 AU

Year: 5857 Days

Day: 5.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,452,047 km

• M1: 165,156 km (0.1 R)
• M2: 709,842 km (0.099 R)
• M3: 1,521,710 km (0.088 R)
• M4: 2,507,260 km (0.065 R)
• M5: 4,237,360 km (0.025 R)
• M6: 4,745,843 km (0.095 R)
• M7: 5,861,095 km (0.109 R)
• M8: 9,391,006 km (0.096 R)
• M9: 9,819,006 km (0.05 R)
• M10: 10,260,020 km (0.085 R)
• M11: 14,374,411 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.6

Radius: 11.4

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.4 AU - 5.26 AU

Year: 6219 Days

Day: 14.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,452,047 km

• M1: 143,315 km (0.097 R)
• M2: 609,013 km (0.111 R)
• M3: 1,134,849 km (0.107 R)
• M4: 1,636,451 km (0.086 R)
• M5: 2,099,756 km (0.112 R)
• M6: 3,075,583 km (0.078 R)
• M7: 3,766,276 km (0.043 R)
• M8: 6,633,618 km (0.099 R)
• M9: 7,567,857 km (0.06 R)
• M10: 8,826,424 km (0.084 R)
• M11: 10,623,992 km (0.12 R)
• M12: 13,814,765 km (0.097 R)
• M13: 18,111,365 km (0.092 R)
• M14: 18,571,528 km (0.119 R)
• M15: 19,929,428 km (0.103 R)
• M16: 20,490,720 km (0.118 R)
• M17: 20,990,526 km (0.097 R)
• M18: 22,238,172 km (0.087 R)
• M19: 24,639,667 km (0.053 R)
• M20: 30,135,294 km (0.07 R)
• M21: 31,816,924 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.2

Radius: 12.4

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 4.23 AU - 6.67 AU

Year: 8782 Days

Day: 11 Hours

Environment

Temp: -230 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,452,047 km

• M1: 162,014 km (0.095 R)
• M2: 601,832 km (0.075 R)
• M3: 1,068,578 km (0.083 R)
• M4: 1,487,003 km (0.12 R)
• M5: 3,005,571 km (0.118 R)
• M6: 3,439,405 km (0.103 R)
• M7: 4,492,125 km (0.087 R)
• M8: 5,125,223 km (0.064 R)
• M9: 5,851,670 km (0.086 R)
• M10: 6,240,026 km (0.099 R)
• M11: 7,428,432 km (0.035 R)
• M12: 10,351,574 km (0.064 R)
• M13: 11,567,655 km (0.067 R)
• M14: 14,156,297 km (0.117 R)
• M15: 15,653,024 km (0.11 R)
• M16: 17,687,555 km (0.108 R)
• M17: 18,278,466 km (0.059 R)
• M18: 19,499,933 km (0.078 R)
• M19: 20,370,742 km (0.091 R)
• M20: 21,516,363 km (0.111 R)
• M21: 22,020,208 km (0.11 R)
• M22: 23,226,865 km (0.118 R)
• M23: 24,934,076 km (0.113 R)
• M24: 26,435,589 km (0.071 R)
• M25: 28,195,758 km (0.101 R)
• M26: 30,032,820 km (0.072 R)
• M27: 30,874,457 km (0.109 R)
• M28: 31,301,110 km (0.069 R)
• M29: 43,425,868 km (0.04 R)

Asteroid Belt

Center: 6.52 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.6

Radius: 3.1

Gravity: 91.53 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.72 AU - 9.44 AU

Year: 14405 Days

Day: 18.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,452,047 km

• M1: 38,596 km (0.082 R)
• M2: 228,735 km (0.081 R)
• M3: 538,552 km (0.032 R)
• M4: 1,039,406 km (0.089 R)
• M5: 1,152,801 km (0.06 R)
• M6: 1,360,293 km (0.084 R)
• M7: 1,641,687 km (0.081 R)
• M8: 1,885,980 km (0.108 R)
• M9: 2,235,291 km (0.07 R)
• M10: 2,648,929 km (0.092 R)
• M11: 3,163,097 km (0.103 R)
• M12: 3,625,504 km (0.095 R)
• M13: 4,353,148 km (0.102 R)
• M14: 4,923,864 km (0.091 R)
• M15: 7,852,093 km (0.115 R)
• M16: 8,290,564 km (0.118 R)
• M17: 8,952,385 km (0.032 R)
• M18: 10,671,564 km (0.082 R)
• M19: 11,453,662 km (0.086 R)
• M20: 12,533,160 km (0.047 R)
• M21: 13,198,721 km (0.114 R)
• M22: 13,817,607 km (0.091 R)
• M23: 19,569,346 km (0.05 R)
• M24: 20,921,113 km (0.092 R)
• M25: 21,572,611 km (0.115 R)
• M26: 22,237,574 km (0.11 R)
• M27: 23,112,572 km (0.082 R)
• M28: 24,212,715 km (0.055 R)
• M29: 24,416,467 km (0.096 R)
• M30: 24,518,642 km (0.117 R)
• M31: 25,768,532 km (0.047 R)
• M32: 30,952,996 km (0.093 R)
• M33: 31,192,951 km (0.077 R)
• M34: 47,333,065 km (0.091 R)
• M35: 51,922,728 km (0.057 R)
• M36: 55,907,716 km (0.119 R)
• M37: 58,065,516 km (0.054 R)
• M38: 63,895,495 km (0.076 R)
• M39: 65,658,206 km (0.094 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 16,506 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit