🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.4

Radius: 10.1

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.5 AU - 0.6 AU

Year: 287 Days

Day: 11.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,360,466 km

• M1: 125,662 km (0.074 R)
• M2: 445,203 km (0.057 R)
• M3: 767,138 km (0.093 R)
• M4: 1,150,408 km (0.094 R)
• M5: 1,626,578 km (0.081 R)
• M6: 1,968,708 km (0.118 R)
• M7: 2,421,541 km (0.072 R)
• M8: 2,854,178 km (0.078 R)
• M9: 3,250,463 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.6

Radius: 10.8

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.61 AU - 0.87 AU

Year: 447 Days

Day: 8 Hours

Environment

Temp: -154 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,360,466 km

• M1: 140,472 km (0.117 R)
• M2: 495,767 km (0.118 R)
• M3: 952,190 km (0.111 R)
• M4: 1,523,654 km (0.06 R)
• M5: 2,212,852 km (0.12 R)
• M6: 3,269,312 km (0.083 R)
• M7: 3,606,206 km (0.05 R)
• M8: 3,954,021 km (0.119 R)
• M9: 4,377,084 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.1

Radius: 13.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.21 AU - 1.57 AU

Year: 1152 Days

Day: 7.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,360,466 km

• M1: 165,455 km (0.073 R)
• M2: 599,139 km (0.071 R)
• M3: 1,039,406 km (0.117 R)
• M4: 1,752,240 km (0.118 R)
• M5: 2,518,929 km (0.111 R)
• M6: 3,142,752 km (0.065 R)
• M7: 3,589,451 km (0.062 R)
• M8: 5,969,853 km (0.106 R)
• M9: 8,773,915 km (0.117 R)
• M10: 9,757,521 km (0.099 R)
• M11: 10,463,473 km (0.031 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.5

Radius: 11.8

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.84 AU - 2.2 AU

Year: 2018 Days

Day: 5.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,360,466 km

• M1: 146,756 km (0.085 R)
• M2: 526,884 km (0.063 R)
• M3: 928,704 km (0.091 R)
• M4: 1,425,219 km (0.106 R)
• M5: 2,097,063 km (0.119 R)
• M6: 2,486,765 km (0.068 R)
• M7: 2,910,427 km (0.115 R)
• M8: 3,365,952 km (0.085 R)
• M9: 3,760,741 km (0.112 R)
• M10: 4,361,975 km (0.078 R)
• M11: 5,337,652 km (0.118 R)
• M12: 5,926,170 km (0.076 R)
• M13: 6,822,411 km (0.083 R)
• M14: 7,345,555 km (0.079 R)
• M15: 9,474,482 km (0.106 R)
• M16: 10,553,681 km (0.075 R)
• M17: 11,330,244 km (0.103 R)
• M18: 12,708,638 km (0.111 R)
• M19: 14,239,922 km (0.055 R)
• M20: 15,891,034 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.9

Radius: 15

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.47 AU - 2.57 AU

Year: 2812 Days

Day: 12.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,360,466 km

• M1: 186,698 km (0.043 R)
• M2: 658,231 km (0.043 R)
• M3: 1,237,922 km (0.113 R)
• M4: 2,561,116 km (0.084 R)
• M5: 3,188,230 km (0.113 R)
• M6: 3,846,311 km (0.066 R)
• M7: 4,658,029 km (0.099 R)
• M8: 5,746,952 km (0.031 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.3

Radius: 8.1

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.49 AU - 5.55 AU

Year: 7906 Days

Day: 11.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 52,360,466 km

• M1: 105,766 km (0.046 R)
• M2: 369,507 km (0.105 R)
• M3: 980,315 km (0.081 R)
• M4: 1,938,190 km (0.071 R)
• M5: 2,350,931 km (0.056 R)
• M6: 3,038,632 km (0.115 R)
• M7: 3,396,769 km (0.094 R)
• M8: 4,562,286 km (0.091 R)
• M9: 5,206,754 km (0.079 R)
• M10: 5,846,734 km (0.114 R)
• M11: 6,470,108 km (0.098 R)
• M12: 7,543,473 km (0.045 R)
• M13: 7,887,548 km (0.079 R)
• M14: 9,947,959 km (0.088 R)
• M15: 10,502,668 km (0.06 R)
• M16: 11,175,559 km (0.076 R)
• M17: 12,821,435 km (0.042 R)
• M18: 16,843,823 km (0.056 R)
• M19: 17,765,196 km (0.088 R)
• M20: 19,209,863 km (0.088 R)
• M21: 19,924,492 km (0.062 R)
• M22: 20,880,123 km (0.067 R)
• M23: 21,635,592 km (0.101 R)
• M24: 21,942,866 km (0.089 R)
• M25: 22,644,929 km (0.101 R)
• M26: 26,381,285 km (0.118 R)
• M27: 30,413,247 km (0.069 R)
• M28: 31,188,014 km (0.045 R)
• M29: 33,182,304 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 647.2

Radius: 6.1

Gravity: 17.39 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.53 AU - 6.67 AU

Year: 9315 Days

Day: 22.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,360,466 km

• M1: 75,846 km (0.051 R)
• M2: 311,762 km (0.082 R)
• M3: 552,764 km (0.118 R)
• M4: 2,165,429 km (0.067 R)
• M5: 3,686,540 km (0.089 R)
• M6: 5,409,609 km (0.069 R)
• M7: 6,857,267 km (0.1 R)
• M8: 8,239,701 km (0.101 R)
• M9: 8,859,336 km (0.051 R)
• M10: 10,595,419 km (0.066 R)
• M11: 10,905,236 km (0.12 R)
• M12: 16,377,676 km (0.096 R)
• M13: 17,142,719 km (0.105 R)
• M14: 21,823,337 km (0.058 R)
• M15: 26,810,631 km (0.065 R)
• M16: 27,193,602 km (0.108 R)
• M17: 36,566,507 km (0.094 R)
• M18: 40,824,511 km (0.062 R)
• M19: 43,268,791 km (0.104 R)
• M20: 43,663,430 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 278.3

Radius: 7.1

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.23 AU - 6.67 AU

Year: 10202 Days

Day: 24.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,360,466 km

• M1: 90,656 km (0.098 R)
• M2: 893,099 km (0.101 R)
• M3: 1,600,847 km (0.107 R)
• M4: 2,454,751 km (0.074 R)
• M5: 4,547,626 km (0.113 R)
• M6: 5,898,046 km (0.11 R)
• M7: 7,496,648 km (0.064 R)
• M8: 8,314,799 km (0.108 R)
• M9: 8,559,242 km (0.11 R)
• M10: 8,977,069 km (0.116 R)
• M11: 13,428,054 km (0.118 R)
• M12: 16,218,803 km (0.107 R)
• M13: 20,094,435 km (0.114 R)
• M14: 21,665,212 km (0.088 R)
• M15: 22,051,025 km (0.054 R)
• M16: 27,133,314 km (0.04 R)
• M17: 27,581,509 km (0.034 R)
• M18: 30,568,231 km (0.111 R)
• M19: 32,439,849 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 413.5

Radius: 7.5

Gravity: 7.35 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 6.4 AU - 6.52 AU

Year: 11541 Days

Day: 20 Hours

Environment

Temp: -238 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,360,466 km

• M1: 93,947 km (0.093 R)
• M2: 384,167 km (0.084 R)
• M3: 663,167 km (0.115 R)
• M4: 902,374 km (0.038 R)
• M5: 1,706,313 km (0.102 R)
• M6: 2,495,592 km (0.088 R)
• M7: 2,834,580 km (0.075 R)
• M8: 3,629,693 km (0.103 R)
• M9: 4,065,921 km (0.066 R)
• M10: 4,310,663 km (0.083 R)
• M11: 4,565,428 km (0.081 R)
• M12: 5,136,293 km (0.108 R)
• M13: 6,419,843 km (0.049 R)
• M14: 6,904,391 km (0.071 R)
• M15: 8,073,049 km (0.067 R)
• M16: 9,135,792 km (0.092 R)
• M17: 12,939,019 km (0.093 R)
• M18: 14,578,462 km (0.065 R)
• M19: 17,113,548 km (0.084 R)
• M20: 17,467,646 km (0.108 R)
• M21: 18,559,261 km (0.101 R)
• M22: 19,541,521 km (0.052 R)
• M23: 23,643,943 km (0.091 R)
• M24: 27,216,640 km (0.054 R)
• M25: 27,991,557 km (0.065 R)
• M26: 33,390,993 km (0.109 R)
• M27: 38,955,734 km (0.112 R)
• M28: 42,085,023 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 168.3

Radius: 7.8

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 7.9 AU - 12.58 AU

Year: 23033 Days

Day: 19.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,360,466 km

• M1: 97,089 km (0.09 R)
• M2: 466,895 km (0.074 R)
• M3: 923,468 km (0.04 R)
• M4: 2,243,070 km (0.075 R)
• M5: 2,964,731 km (0.043 R)
• M6: 4,109,005 km (0.092 R)
• M7: 4,518,753 km (0.104 R)
• M8: 4,827,822 km (0.082 R)
• M9: 5,876,952 km (0.072 R)
• M10: 7,746,477 km (0.046 R)
• M11: 8,100,126 km (0.114 R)
• M12: 10,721,979 km (0.068 R)
• M13: 14,851,029 km (0.101 R)
• M14: 17,265,988 km (0.116 R)
• M15: 19,280,922 km (0.086 R)
• M16: 19,685,584 km (0.069 R)
• M17: 24,898,770 km (0.113 R)
• M18: 27,462,429 km (0.119 R)
• M19: 34,869,917 km (0.045 R)
• M20: 37,565,521 km (0.058 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 279 - 10,876 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit