🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.1

Radius: 8.8

Gravity: 8.41 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.58 AU - 0.62 AU

Year: 315 Days

Day: 12.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,507,769 km

• M1: 109,506 km (0.113 R)
• M2: 562,338 km (0.075 R)
• M3: 1,010,384 km (0.095 R)
• M4: 1,347,727 km (0.12 R)
• M5: 1,739,674 km (0.097 R)
• M6: 2,306,051 km (0.118 R)
• M7: 2,660,748 km (0.035 R)
• M8: 3,502,984 km (0.092 R)
• M9: 4,237,210 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.9

Radius: 10.1

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.8 AU - 0.82 AU

Year: 494 Days

Day: 10.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,507,769 km

• M1: 125,662 km (0.115 R)
• M2: 459,714 km (0.11 R)
• M3: 774,169 km (0.109 R)
• M4: 1,116,898 km (0.098 R)
• M5: 1,434,494 km (0.11 R)
• M6: 2,040,515 km (0.103 R)
• M7: 3,116,722 km (0.118 R)
• M8: 3,709,429 km (0.064 R)
• M9: 4,053,354 km (0.116 R)
• M10: 5,248,641 km (0.108 R)
• M11: 5,857,355 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.1

Radius: 13.3

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.56 AU - 1.58 AU

Year: 1334 Days

Day: 14.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,507,769 km

• M1: 165,455 km (0.049 R)
• M2: 686,355 km (0.117 R)
• M3: 1,115,851 km (0.087 R)
• M4: 1,923,829 km (0.108 R)
• M5: 3,123,604 km (0.099 R)
• M6: 4,314,851 km (0.096 R)
• M7: 4,933,439 km (0.115 R)
• M8: 5,677,239 km (0.072 R)
• M9: 7,282,724 km (0.095 R)
• M10: 8,105,362 km (0.068 R)
• M11: 9,486,001 km (0.094 R)
• M12: 10,843,901 km (0.109 R)
• M13: 11,371,832 km (0.12 R)
• M14: 13,376,294 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66

Radius: 10.9

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.9 AU - 1.96 AU

Year: 1819 Days

Day: 7.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,507,769 km

• M1: 137,780 km (0.073 R)
• M2: 558,748 km (0.087 R)
• M3: 969,544 km (0.111 R)
• M4: 1,744,760 km (0.063 R)
• M5: 3,030,703 km (0.115 R)
• M6: 3,825,666 km (0.116 R)
• M7: 4,414,035 km (0.06 R)
• M8: 5,195,534 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.7

Radius: 9.4

Gravity: 10.22 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.84 AU - 2.04 AU

Year: 1833 Days

Day: 14.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,507,769 km

• M1: 119,828 km (0.095 R)
• M2: 576,101 km (0.117 R)
• M3: 1,123,480 km (0.067 R)
• M4: 1,713,494 km (0.083 R)
• M5: 2,638,009 km (0.071 R)
• M6: 3,153,972 km (0.1 R)
• M7: 3,681,753 km (0.108 R)
• M8: 4,247,682 km (0.103 R)
• M9: 4,783,990 km (0.116 R)
• M10: 5,434,891 km (0.087 R)
• M11: 5,942,177 km (0.06 R)
• M12: 6,587,093 km (0.069 R)
• M13: 7,508,766 km (0.066 R)
• M14: 8,609,657 km (0.087 R)
• M15: 9,032,570 km (0.064 R)
• M16: 9,606,577 km (0.064 R)
• M17: 10,348,881 km (0.086 R)
• M18: 11,358,966 km (0.095 R)
• M19: 11,828,404 km (0.084 R)
• M20: 12,847,914 km (0.074 R)
• M21: 13,661,278 km (0.047 R)
• M22: 15,154,863 km (0.087 R)
• M23: 16,014,003 km (0.118 R)
• M24: 16,406,099 km (0.054 R)
• M25: 16,704,248 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.2

Radius: 14.2

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 4.18 AU - 4.92 AU

Year: 6583 Days

Day: 11.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 63,507,769 km

• M1: 177,124 km (0.025 R)
• M2: 2,113,070 km (0.088 R)
• M3: 10,760,874 km (0.12 R)
• M4: 11,651,729 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.7

Radius: 9.5

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.34 AU - 5.62 AU

Year: 8701 Days

Day: 8.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,507,769 km

• M1: 129,402 km (0.097 R)
• M2: 521,947 km (0.104 R)
• M3: 1,130,062 km (0.106 R)
• M4: 1,459,626 km (0.034 R)
• M5: 2,104,692 km (0.091 R)
• M6: 2,579,666 km (0.08 R)
• M7: 3,272,753 km (0.07 R)
• M8: 6,191,856 km (0.115 R)
• M9: 6,517,231 km (0.054 R)
• M10: 7,202,240 km (0.11 R)
• M11: 16,344,166 km (0.105 R)
• M12: 20,912,735 km (0.066 R)
• M13: 23,238,982 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393.1

Radius: 7.1

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 5.37 AU - 6.91 AU

Year: 10319 Days

Day: 19.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,507,769 km

• M1: 88,562 km (0.074 R)
• M2: 398,529 km (0.096 R)
• M3: 932,444 km (0.099 R)
• M4: 1,418,188 km (0.103 R)
• M5: 1,950,607 km (0.101 R)
• M6: 3,270,509 km (0.115 R)
• M7: 5,664,523 km (0.072 R)
• M8: 9,076,103 km (0.096 R)
• M9: 10,529,745 km (0.036 R)
• M10: 15,619,364 km (0.084 R)
• M11: 16,668,943 km (0.062 R)
• M12: 19,201,335 km (0.081 R)
• M13: 23,548,051 km (0.104 R)
• M14: 28,604,758 km (0.116 R)
• M15: 32,315,534 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.5

Radius: 7.3

Gravity: 13.33 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 5.97 AU - 9.77 AU

Year: 14975 Days

Day: 21.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,507,769 km

• M1: 90,806 km (0.066 R)
• M2: 473,028 km (0.058 R)
• M3: 794,065 km (0.082 R)
• M4: 1,367,025 km (0.082 R)
• M5: 1,669,662 km (0.073 R)
• M6: 2,035,429 km (0.057 R)
• M7: 2,411,518 km (0.103 R)
• M8: 2,786,560 km (0.032 R)
• M9: 3,738,002 km (0.084 R)
• M10: 4,689,295 km (0.085 R)
• M11: 8,258,102 km (0.113 R)
• M12: 8,905,262 km (0.047 R)
• M13: 9,425,563 km (0.089 R)
• M14: 9,747,498 km (0.11 R)
• M15: 10,527,053 km (0.079 R)
• M16: 12,021,535 km (0.082 R)
• M17: 15,425,336 km (0.114 R)
• M18: 16,482,544 km (0.12 R)
• M19: 22,884,435 km (0.043 R)
• M20: 25,271,419 km (0.095 R)
• M21: 26,102,734 km (0.056 R)
• M22: 26,418,984 km (0.116 R)
• M23: 28,482,387 km (0.092 R)
• M24: 31,476,738 km (0.067 R)
• M25: 34,169,051 km (0.085 R)
• M26: 39,036,667 km (0.106 R)
• M27: 40,146,833 km (0.071 R)
• M28: 45,555,544 km (0.119 R)
• M29: 48,195,796 km (0.1 R)
• M30: 49,311,946 km (0.056 R)
• M31: 50,608,660 km (0.108 R)
• M32: 51,265,395 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 502 - 17,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit