🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.45 AU - 0.61 AU

Year: 253 Days

Day: 45.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 9,010,287 km

• M1: 234,569 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.1

Radius: 9

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.82 AU - 0.88 AU

Year: 514 Days

Day: 12 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,010,287 km

• M1: 111,899 km (0.099 R)
• M2: 474,524 km (0.079 R)
• M3: 815,907 km (0.113 R)
• M4: 1,281,007 km (0.102 R)
• M5: 1,635,554 km (0.075 R)
• M6: 1,923,829 km (0.118 R)
• M7: 2,546,006 km (0.071 R)
• M8: 3,158,161 km (0.045 R)
• M9: 3,710,775 km (0.074 R)
• M10: 4,077,739 km (0.087 R)
• M11: 4,614,646 km (0.107 R)
• M12: 5,326,881 km (0.052 R)
• M13: 5,658,539 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.1

Radius: 8.9

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.82 AU - 0.94 AU

Year: 542 Days

Day: 9.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 9,010,287 km

• M1: 110,702 km (0.094 R)
• M2: 523,593 km (0.039 R)
• M3: 980,165 km (0.056 R)
• M4: 1,347,129 km (0.04 R)
• M5: 1,658,891 km (0.118 R)
• M6: 2,278,675 km (0.103 R)
• M7: 2,779,528 km (0.045 R)
• M8: 3,267,517 km (0.071 R)
• M9: 4,414,783 km (0.091 R)
• M10: 4,716,372 km (0.106 R)
• M11: 6,475,194 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948

Radius: 11.5

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.98 AU - 1.58 AU

Year: 950 Days

Day: 8.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 9,010,287 km

• M1: 145,110 km (0.075 R)
• M2: 916,437 km (0.106 R)
• M3: 1,334,563 km (0.08 R)
• M4: 1,833,621 km (0.118 R)
• M5: 2,610,483 km (0.097 R)
• M6: 3,610,245 km (0.099 R)
• M7: 4,466,693 km (0.099 R)
• M8: 5,433,395 km (0.088 R)
• M9: 6,352,374 km (0.096 R)
• M10: 7,125,795 km (0.113 R)
• M11: 7,573,542 km (0.112 R)
• M12: 8,226,537 km (0.102 R)
• M13: 9,525,794 km (0.115 R)
• M14: 10,255,832 km (0.1 R)
• M15: 11,088,344 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.9

Radius: 12.1

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.47 AU - 1.77 AU

Year: 1353 Days

Day: 10.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 9,010,287 km

• M1: 150,495 km (0.044 R)
• M2: 707,299 km (0.062 R)
• M3: 1,239,718 km (0.052 R)
• M4: 1,895,555 km (0.097 R)
• M5: 2,343,750 km (0.05 R)
• M6: 3,242,235 km (0.076 R)
• M7: 3,642,110 km (0.063 R)
• M8: 4,060,685 km (0.103 R)
• M9: 6,599,360 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.5

Radius: 11.8

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.67 AU - 2.03 AU

Year: 1651 Days

Day: 8.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 9,010,287 km

• M1: 150,795 km (0.084 R)
• M2: 952,938 km (0.088 R)
• M3: 1,906,026 km (0.118 R)
• M4: 2,544,809 km (0.091 R)
• M5: 2,976,998 km (0.11 R)
• M6: 3,742,490 km (0.106 R)
• M7: 4,864,324 km (0.118 R)
• M8: 5,493,084 km (0.108 R)
• M9: 5,882,487 km (0.068 R)
• M10: 7,497,845 km (0.109 R)
• M11: 7,923,900 km (0.09 R)
• M12: 8,795,607 km (0.03 R)
• M13: 9,391,306 km (0.101 R)
• M14: 9,981,768 km (0.058 R)
• M15: 12,337,336 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446

Radius: 13.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.86 AU - 1.88 AU

Year: 1678 Days

Day: 12.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 9,010,287 km

• M1: 164,109 km (0.096 R)
• M2: 898,335 km (0.117 R)
• M3: 1,434,494 km (0.062 R)
• M4: 2,342,852 km (0.11 R)
• M5: 2,791,347 km (0.086 R)
• M6: 3,542,178 km (0.104 R)
• M7: 6,037,620 km (0.118 R)
• M8: 7,091,537 km (0.113 R)
• M9: 8,434,029 km (0.073 R)
• M10: 9,563,044 km (0.067 R)
• M11: 10,656,305 km (0.112 R)
• M12: 11,198,897 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.4

Radius: 14.8

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.03 AU - 2.35 AU

Year: 2126 Days

Day: 12.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 9,010,287 km

• M1: 184,005 km (0.043 R)
• M2: 671,694 km (0.117 R)
• M3: 1,387,520 km (0.104 R)
• M4: 2,116,959 km (0.108 R)
• M5: 2,578,618 km (0.07 R)
• M6: 3,241,038 km (0.073 R)
• M7: 3,998,153 km (0.117 R)
• M8: 5,622,935 km (0.117 R)
• M9: 6,260,372 km (0.099 R)
• M10: 7,073,436 km (0.106 R)
• M11: 9,908,166 km (0.112 R)
• M12: 10,568,790 km (0.084 R)
• M13: 11,364,651 km (0.046 R)
• M14: 11,868,347 km (0.117 R)
• M15: 12,424,702 km (0.06 R)
• M16: 12,920,918 km (0.095 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.7

Radius: 14.9

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.28 AU - 3.08 AU

Year: 2878 Days

Day: 8.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 9,010,287 km

• M1: 185,352 km (0.084 R)
• M2: 1,049,279 km (0.097 R)
• M3: 1,838,109 km (0.105 R)
• M4: 2,382,496 km (0.105 R)
• M5: 3,540,682 km (0.119 R)
• M6: 4,247,682 km (0.094 R)
• M7: 4,977,271 km (0.076 R)
• M8: 5,867,528 km (0.053 R)
• M9: 7,585,061 km (0.066 R)
• M10: 8,127,802 km (0.115 R)
• M11: 9,989,248 km (0.098 R)
• M12: 14,061,153 km (0.075 R)
• M13: 15,482,033 km (0.094 R)
• M14: 16,149,240 km (0.109 R)
• M15: 16,675,525 km (0.094 R)
• M16: 18,097,602 km (0.105 R)
• M17: 19,480,784 km (0.092 R)
• M18: 20,625,058 km (0.08 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.9

Radius: 10.6

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.47 AU - 4.81 AU

Year: 5526 Days

Day: 6 Hours

Environment

Temp: -203 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 9,010,287 km

• M1: 164,857 km (0.072 R)
• M2: 827,875 km (0.108 R)
• M3: 1,900,192 km (0.107 R)
• M4: 3,700,453 km (0.099 R)
• M5: 4,643,518 km (0.113 R)
• M6: 5,045,039 km (0.078 R)
• M7: 5,469,597 km (0.086 R)
• M8: 6,182,282 km (0.097 R)
• M9: 6,669,223 km (0.113 R)
• M10: 7,045,312 km (0.092 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 292 - 11,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit