🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646

Radius: 13

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.61 AU - 0.71 AU

Year: 370 Days

Day: 6.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,655,046 km

• M1: 161,715 km (0.105 R)
• M2: 690,245 km (0.09 R)
• M3: 1,265,299 km (0.119 R)
• M4: 1,752,240 km (0.08 R)
• M5: 2,287,202 km (0.081 R)
• M6: 2,761,427 km (0.073 R)
• M7: 3,986,334 km (0.077 R)
• M8: 4,893,795 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.3

Radius: 14.2

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.68 AU - 0.7 AU

Year: 396 Days

Day: 7.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,655,046 km

• M1: 176,525 km (0.109 R)
• M2: 679,474 km (0.082 R)
• M3: 1,530,835 km (0.108 R)
• M4: 2,307,098 km (0.06 R)
• M5: 2,864,799 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.5

Radius: 13.1

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.82 AU - 1.02 AU

Year: 609 Days

Day: 11.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,655,046 km

• M1: 162,912 km (0.108 R)
• M2: 631,453 km (0.103 R)
• M3: 1,055,114 km (0.103 R)
• M4: 1,624,782 km (0.079 R)
• M5: 2,069,387 km (0.081 R)
• M6: 2,690,966 km (0.071 R)
• M7: 3,255,698 km (0.12 R)
• M8: 3,800,384 km (0.051 R)
• M9: 4,311,411 km (0.115 R)
• M10: 5,029,630 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.7

Radius: 9.8

Gravity: 8.74 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.78 AU - 1.24 AU

Year: 701 Days

Day: 8.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,655,046 km

• M1: 121,922 km (0.106 R)
• M2: 474,824 km (0.1 R)
• M3: 1,401,732 km (0.113 R)
• M4: 1,851,722 km (0.113 R)
• M5: 2,945,881 km (0.085 R)
• M6: 3,384,353 km (0.034 R)
• M7: 3,821,627 km (0.11 R)
• M8: 4,185,748 km (0.054 R)
• M9: 4,573,057 km (0.049 R)
• M10: 5,180,873 km (0.112 R)
• M11: 5,920,485 km (0.102 R)
• M12: 7,014,345 km (0.116 R)
• M13: 7,492,310 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.8

Radius: 13.8

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.17 AU - 1.53 AU

Year: 1083 Days

Day: 7.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,655,046 km

• M1: 171,589 km (0.089 R)
• M2: 814,560 km (0.093 R)
• M3: 1,617,452 km (0.055 R)
• M4: 2,109,180 km (0.103 R)
• M5: 2,559,320 km (0.054 R)
• M6: 2,989,713 km (0.076 R)
• M7: 3,442,397 km (0.106 R)
• M8: 3,955,816 km (0.104 R)
• M9: 5,226,052 km (0.083 R)
• M10: 6,441,984 km (0.052 R)
• M11: 7,008,511 km (0.09 R)
• M12: 7,539,882 km (0.09 R)
• M13: 8,121,968 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.6

Radius: 9.4

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.77 AU - 4.59 AU

Year: 5899 Days

Day: 6.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,655,046 km

• M1: 116,836 km (0.03 R)
• M2: 1,435,092 km (0.114 R)
• M3: 2,508,008 km (0.113 R)
• M4: 3,411,879 km (0.094 R)
• M5: 4,878,835 km (0.108 R)
• M6: 5,683,821 km (0.098 R)
• M7: 5,989,899 km (0.054 R)
• M8: 6,635,414 km (0.058 R)
• M9: 7,424,393 km (0.062 R)
• M10: 8,345,467 km (0.036 R)
• M11: 9,075,355 km (0.092 R)
• M12: 10,006,751 km (0.083 R)
• M13: 13,821,198 km (0.111 R)
• M14: 16,466,836 km (0.097 R)
• M15: 17,496,817 km (0.046 R)
• M16: 18,630,021 km (0.039 R)
• M17: 19,059,517 km (0.101 R)
• M18: 20,647,947 km (0.072 R)
• M19: 22,460,475 km (0.035 R)
• M20: 22,807,392 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 505.4

Radius: 7

Gravity: 10.31 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.22 AU - 6.26 AU

Year: 9492 Days

Day: 17.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,655,046 km

• M1: 87,066 km (0.073 R)
• M2: 360,082 km (0.111 R)
• M3: 739,313 km (0.086 R)
• M4: 1,306,887 km (0.049 R)
• M5: 1,801,308 km (0.077 R)
• M6: 2,544,510 km (0.101 R)
• M7: 5,058,951 km (0.107 R)
• M8: 7,576,833 km (0.038 R)
• M9: 8,617,585 km (0.106 R)
• M10: 8,969,888 km (0.066 R)
• M11: 11,551,948 km (0.114 R)
• M12: 15,604,404 km (0.087 R)
• M13: 16,394,281 km (0.058 R)
• M14: 19,746,321 km (0.089 R)
• M15: 23,528,903 km (0.081 R)
• M16: 24,130,735 km (0.084 R)
• M17: 25,815,805 km (0.106 R)
• M18: 28,633,780 km (0.071 R)
• M19: 34,540,952 km (0.087 R)
• M20: 35,430,012 km (0.075 R)
• M21: 36,220,487 km (0.106 R)
• M22: 37,369,847 km (0.1 R)

Asteroid Belt

Center: 7.24 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.6

Radius: 7.8

Gravity: 13.37 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.46 AU - 9.02 AU

Year: 17835 Days

Day: 16.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,655,046 km

• M1: 98,286 km (0.086 R)
• M2: 524,640 km (0.101 R)
• M3: 869,463 km (0.053 R)
• M4: 1,127,669 km (0.118 R)
• M5: 1,934,300 km (0.105 R)
• M6: 2,427,375 km (0.113 R)
• M7: 3,158,609 km (0.1 R)
• M8: 3,432,673 km (0.113 R)
• M9: 4,418,373 km (0.091 R)
• M10: 5,049,975 km (0.11 R)
• M11: 10,221,723 km (0.112 R)
• M12: 10,947,572 km (0.12 R)
• M13: 12,774,162 km (0.11 R)
• M14: 13,120,631 km (0.117 R)
• M15: 13,759,863 km (0.119 R)
• M16: 24,166,489 km (0.119 R)
• M17: 30,187,354 km (0.068 R)
• M18: 37,700,907 km (0.081 R)
• M19: 39,867,085 km (0.103 R)
• M20: 41,055,640 km (0.095 R)
• M21: 42,882,529 km (0.093 R)
• M22: 51,602,290 km (0.083 R)
• M23: 53,369,938 km (0.082 R)
• M24: 55,727,900 km (0.058 R)
• M25: 66,474,263 km (0.05 R)
• M26: 67,514,716 km (0.113 R)
• M27: 69,201,881 km (0.082 R)
• M28: 70,485,430 km (0.046 R)
• M29: 74,208,622 km (0.065 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: 280 - 12,709 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit