🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.8

Radius: 14.6

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.67 AU - 0.73 AU

Year: 397 Days

Day: 9 Hours

Environment

Temp: -163 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,723,382 km

• M1: 181,612 km (0.027 R)
• M2: 696,827 km (0.072 R)
• M3: 1,352,963 km (0.063 R)
• M4: 2,104,393 km (0.112 R)
• M5: 2,656,559 km (0.03 R)
• M6: 4,711,286 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.6

Radius: 9.2

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.58 AU - 0.86 AU

Year: 414 Days

Day: 14.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,723,382 km

• M1: 117,434 km (0.112 R)
• M2: 420,520 km (0.072 R)
• M3: 764,894 km (0.113 R)
• M4: 1,242,111 km (0.091 R)
• M5: 1,542,952 km (0.097 R)
• M6: 2,049,341 km (0.085 R)
• M7: 2,379,653 km (0.108 R)
• M8: 2,829,494 km (0.053 R)
• M9: 3,654,377 km (0.09 R)
• M10: 4,982,507 km (0.108 R)
• M11: 5,467,353 km (0.12 R)
• M12: 5,842,545 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.5

Radius: 12.7

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.69 AU - 0.77 AU

Year: 423 Days

Day: 5.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,723,382 km

• M1: 157,975 km (0.064 R)
• M2: 574,306 km (0.084 R)
• M3: 1,160,730 km (0.037 R)
• M4: 1,579,604 km (0.113 R)
• M5: 2,374,866 km (0.047 R)
• M6: 2,979,541 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.1

Radius: 9.4

Gravity: 10.14 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.27 AU - 1.91 AU

Year: 1360 Days

Day: 7.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,723,382 km

• M1: 117,135 km (0.119 R)
• M2: 514,617 km (0.117 R)
• M3: 1,043,595 km (0.083 R)
• M4: 1,627,625 km (0.071 R)
• M5: 2,798,827 km (0.103 R)
• M6: 3,619,820 km (0.1 R)
• M7: 4,015,057 km (0.066 R)
• M8: 4,953,933 km (0.06 R)
• M9: 5,552,624 km (0.059 R)
• M10: 6,319,164 km (0.091 R)
• M11: 6,766,162 km (0.111 R)
• M12: 7,751,414 km (0.104 R)
• M13: 10,996,042 km (0.102 R)
• M14: 13,094,002 km (0.104 R)
• M15: 13,821,497 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.1

Radius: 10.1

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.41 AU - 3.83 AU

Year: 3738 Days

Day: 13.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,723,382 km

• M1: 125,812 km (0.082 R)
• M2: 644,468 km (0.116 R)
• M3: 966,253 km (0.094 R)
• M4: 1,428,211 km (0.11 R)
• M5: 1,948,363 km (0.095 R)
• M6: 2,835,179 km (0.09 R)
• M7: 3,606,057 km (0.109 R)
• M8: 4,111,847 km (0.108 R)
• M9: 4,446,198 km (0.08 R)
• M10: 4,935,683 km (0.116 R)
• M11: 8,699,116 km (0.054 R)
• M12: 10,818,469 km (0.066 R)
• M13: 12,467,187 km (0.119 R)
• M14: 18,243,460 km (0.07 R)
• M15: 19,324,604 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.1

Radius: 7.7

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.07 AU - 7.87 AU

Year: 11162 Days

Day: 24 Hours

Environment

Temp: -227 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,723,382 km

• M1: 95,743 km (0.084 R)
• M2: 362,326 km (0.081 R)
• M3: 748,588 km (0.119 R)
• M4: 2,194,302 km (0.044 R)
• M5: 3,089,046 km (0.06 R)
• M6: 3,618,922 km (0.076 R)
• M7: 4,567,971 km (0.052 R)
• M8: 5,413,947 km (0.044 R)
• M9: 6,183,778 km (0.104 R)
• M10: 10,198,386 km (0.081 R)
• M11: 15,286,060 km (0.114 R)
• M12: 26,196,532 km (0.114 R)
• M13: 29,463,600 km (0.076 R)
• M14: 30,168,355 km (0.079 R)
• M15: 34,081,686 km (0.043 R)
• M16: 34,970,148 km (0.115 R)
• M17: 41,879,026 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.3

Radius: 4.5

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 7.44 AU - 7.54 AU

Year: 13903 Days

Day: 18.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,723,382 km

• M1: 56,099 km (0.107 R)
• M2: 258,206 km (0.114 R)
• M3: 649,554 km (0.069 R)
• M4: 1,087,577 km (0.038 R)
• M5: 1,242,111 km (0.117 R)
• M6: 1,687,464 km (0.042 R)
• M7: 1,983,967 km (0.113 R)
• M8: 2,364,245 km (0.076 R)
• M9: 3,374,629 km (0.061 R)
• M10: 4,306,773 km (0.098 R)
• M11: 7,584,762 km (0.098 R)
• M12: 8,114,338 km (0.074 R)
• M13: 9,502,158 km (0.103 R)
• M14: 9,806,440 km (0.063 R)
• M15: 11,670,878 km (0.115 R)
• M16: 13,161,770 km (0.099 R)
• M17: 13,814,316 km (0.111 R)
• M18: 16,577,987 km (0.074 R)
• M19: 18,589,779 km (0.086 R)
• M20: 19,900,107 km (0.114 R)
• M21: 20,254,804 km (0.092 R)
• M22: 20,613,839 km (0.11 R)
• M23: 21,050,066 km (0.09 R)
• M24: 22,016,618 km (0.051 R)
• M25: 28,444,689 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 244.8

Radius: 3.7

Gravity: 17.88 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 8.54 AU - 11.16 AU

Year: 20967 Days

Day: 16.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,723,382 km

• M1: 46,226 km (0.117 R)
• M2: 189,241 km (0.052 R)
• M3: 334,351 km (0.105 R)
• M4: 1,519,466 km (0.112 R)
• M5: 1,704,668 km (0.113 R)
• M6: 2,843,407 km (0.059 R)
• M7: 3,636,126 km (0.115 R)
• M8: 4,141,617 km (0.091 R)
• M9: 6,165,078 km (0.068 R)
• M10: 8,862,028 km (0.072 R)
• M11: 9,208,647 km (0.048 R)
• M12: 10,466,017 km (0.033 R)
• M13: 12,012,260 km (0.042 R)
• M14: 12,746,038 km (0.106 R)
• M15: 16,053,048 km (0.06 R)
• M16: 16,493,614 km (0.084 R)
• M17: 17,707,750 km (0.04 R)
• M18: 23,068,291 km (0.081 R)
• M19: 23,628,984 km (0.078 R)
• M20: 24,777,596 km (0.072 R)
• M21: 25,862,779 km (0.082 R)
• M22: 29,090,652 km (0.106 R)
• M23: 30,744,756 km (0.1 R)
• M24: 32,577,031 km (0.098 R)
• M25: 34,602,137 km (0.117 R)
• M26: 41,452,074 km (0.054 R)
• M27: 42,419,224 km (0.07 R)
• M28: 44,112,074 km (0.059 R)
• M29: 45,996,259 km (0.08 R)
• M30: 47,032,673 km (0.073 R)
• M31: 48,084,496 km (0.114 R)
• M32: 54,233,566 km (0.063 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 15,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit