🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.56 AU - 0.58 AU

Year: 282 Days

Day: 18.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,338,521 km

• M1: 126,111 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.7

Radius: 10.2

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.75 AU - 1.01 AU

Year: 542 Days

Day: 8.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,338,521 km

• M1: 126,859 km (0.069 R)
• M2: 539,749 km (0.093 R)
• M3: 1,153,699 km (0.043 R)
• M4: 1,474,437 km (0.056 R)
• M5: 2,332,680 km (0.069 R)
• M6: 2,822,463 km (0.065 R)
• M7: 3,329,600 km (0.092 R)
• M8: 3,952,525 km (0.078 R)
• M9: 4,374,541 km (0.117 R)
• M10: 4,762,448 km (0.064 R)
• M11: 5,378,642 km (0.032 R)
• M12: 5,769,691 km (0.066 R)
• M13: 6,275,481 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.6

Radius: 8.9

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.87 AU - 0.99 AU

Year: 588 Days

Day: 8.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 126.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,338,521 km

• M1: 110,702 km (0.067 R)
• M2: 442,361 km (0.092 R)
• M3: 768,335 km (0.098 R)
• M4: 1,085,931 km (0.096 R)
• M5: 1,928,765 km (0.076 R)
• M6: 2,243,669 km (0.06 R)
• M7: 2,582,508 km (0.074 R)
• M8: 2,955,456 km (0.103 R)
• M9: 4,221,353 km (0.068 R)
• M10: 4,599,387 km (0.073 R)
• M11: 5,302,646 km (0.095 R)
• M12: 5,599,747 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.1

Radius: 8.4

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.4 AU - 2.26 AU

Year: 1624 Days

Day: 11.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,338,521 km

• M1: 105,766 km (0.049 R)
• M2: 410,646 km (0.102 R)
• M3: 682,914 km (0.089 R)
• M4: 1,054,216 km (0.067 R)
• M5: 1,755,381 km (0.067 R)
• M6: 2,145,533 km (0.052 R)
• M7: 2,579,965 km (0.115 R)
• M8: 3,014,247 km (0.117 R)
• M9: 3,433,570 km (0.12 R)
• M10: 3,773,307 km (0.076 R)
• M11: 4,047,071 km (0.093 R)
• M12: 4,501,550 km (0.082 R)
• M13: 5,709,702 km (0.1 R)
• M14: 6,643,492 km (0.032 R)
• M15: 7,567,707 km (0.066 R)
• M16: 9,449,798 km (0.084 R)
• M17: 11,552,995 km (0.057 R)
• M18: 12,133,135 km (0.102 R)
• M19: 12,505,484 km (0.09 R)
• M20: 12,808,869 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479

Radius: 15

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.21 AU - 2.35 AU

Year: 2258 Days

Day: 5 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,338,521 km

• M1: 186,549 km (0.072 R)
• M2: 660,026 km (0.092 R)
• M3: 1,626,428 km (0.113 R)
• M4: 3,013,649 km (0.076 R)
• M5: 3,571,200 km (0.091 R)
• M6: 4,235,565 km (0.108 R)
• M7: 5,110,712 km (0.101 R)
• M8: 5,909,565 km (0.099 R)
• M9: 6,453,503 km (0.073 R)
• M10: 8,814,755 km (0.095 R)
• M11: 9,694,241 km (0.083 R)
• M12: 10,489,055 km (0.099 R)
• M13: 11,590,693 km (0.076 R)
• M14: 13,638,987 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.9

Radius: 10.8

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.33 AU - 3.27 AU

Year: 3074 Days

Day: 13.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 130.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,338,521 km

• M1: 151,842 km (0.109 R)
• M2: 834,158 km (0.113 R)
• M3: 1,702,873 km (0.056 R)
• M4: 2,695,006 km (0.112 R)
• M5: 3,171,325 km (0.115 R)
• M6: 3,982,146 km (0.091 R)
• M7: 4,427,050 km (0.116 R)
• M8: 4,843,530 km (0.101 R)
• M9: 5,264,349 km (0.107 R)
• M10: 6,650,373 km (0.092 R)
• M11: 7,332,988 km (0.095 R)
• M12: 7,804,222 km (0.072 R)
• M13: 8,563,730 km (0.096 R)
• M14: 9,117,990 km (0.092 R)
• M15: 9,696,036 km (0.109 R)
• M16: 10,889,977 km (0.085 R)
• M17: 12,960,412 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.1

Radius: 8.3

Gravity: 13.31 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.72 AU - 3.92 AU

Year: 3968 Days

Day: 8.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,338,521 km

• M1: 120,127 km (0.113 R)
• M2: 422,764 km (0.045 R)
• M3: 803,640 km (0.107 R)
• M4: 1,079,049 km (0.052 R)
• M5: 1,687,763 km (0.094 R)
• M6: 2,254,739 km (0.118 R)
• M7: 3,111,337 km (0.109 R)
• M8: 7,589,848 km (0.095 R)
• M9: 8,127,802 km (0.107 R)
• M10: 8,538,298 km (0.061 R)
• M11: 8,845,423 km (0.057 R)
• M12: 9,937,039 km (0.05 R)
• M13: 10,801,714 km (0.07 R)
• M14: 11,070,691 km (0.095 R)
• M15: 11,344,156 km (0.076 R)
• M16: 11,951,972 km (0.088 R)
• M17: 13,489,240 km (0.065 R)
• M18: 14,386,079 km (0.109 R)
• M19: 14,987,163 km (0.111 R)
• M20: 15,321,964 km (0.114 R)
• M21: 23,413,114 km (0.069 R)
• M22: 25,017,551 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.9

Radius: 8.4

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 4.51 AU - 7.03 AU

Year: 9092 Days

Day: 12 Hours

Environment

Temp: -216 °C

Axial Tilt: 86.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,338,521 km

• M1: 104,419 km (0.074 R)
• M2: 582,385 km (0.099 R)
• M3: 1,233,584 km (0.079 R)
• M4: 2,023,760 km (0.034 R)
• M5: 3,611,293 km (0.102 R)
• M6: 4,560,641 km (0.078 R)
• M7: 7,669,883 km (0.075 R)
• M8: 9,773,378 km (0.048 R)
• M9: 11,134,270 km (0.063 R)
• M10: 11,545,365 km (0.102 R)
• M11: 12,839,387 km (0.106 R)
• M12: 14,048,586 km (0.119 R)
• M13: 14,834,274 km (0.098 R)
• M14: 17,299,049 km (0.075 R)
• M15: 18,556,718 km (0.107 R)
• M16: 22,287,689 km (0.087 R)
• M17: 22,694,446 km (0.032 R)
• M18: 31,804,956 km (0.09 R)
• M19: 34,331,365 km (0.12 R)
• M20: 38,951,695 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 441

Radius: 4.4

Gravity: 22.78 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.17 AU - 9.27 AU

Year: 15460 Days

Day: 17.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,338,521 km

• M1: 54,753 km (0.117 R)
• M2: 268,678 km (0.115 R)
• M3: 422,016 km (0.059 R)
• M4: 790,625 km (0.12 R)
• M5: 1,281,306 km (0.097 R)
• M6: 3,461,844 km (0.083 R)
• M7: 3,781,834 km (0.109 R)
• M8: 4,006,081 km (0.056 R)
• M9: 5,400,782 km (0.116 R)
• M10: 8,192,428 km (0.065 R)
• M11: 8,331,853 km (0.1 R)
• M12: 8,472,924 km (0.078 R)
• M13: 11,065,904 km (0.052 R)
• M14: 11,236,595 km (0.104 R)
• M15: 11,817,783 km (0.096 R)
• M16: 12,726,889 km (0.061 R)
• M17: 15,097,268 km (0.101 R)
• M18: 15,661,401 km (0.084 R)
• M19: 16,981,602 km (0.069 R)
• M20: 22,005,996 km (0.083 R)
• M21: 24,805,122 km (0.06 R)
• M22: 29,543,784 km (0.111 R)
• M23: 32,355,775 km (0.119 R)
• M24: 39,423,527 km (0.072 R)
• M25: 42,128,406 km (0.083 R)
• M26: 42,405,461 km (0.115 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 14,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit