🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.6 AU - 0.98 AU

Year: 260 Days

Day: 34.5 Hours

Environment

Temp: 87 °C

Axial Tilt: 39.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.78 AU - 1.08 AU

Year: 333 Days

Day: 38.8 Hours

Environment

Temp: 35 °C

Axial Tilt: 36.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 77,249,472 km

• M1: 407,953 km (0.066 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.19 AU - 3.67 AU

Year: 2356 Days

Day: 16.2 Hours

Environment

Temp: -115 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,249,472 km

• M1: 29,770 km (0.107 R)

Asteroid Belt

Center: 4.21 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.9

Radius: 10.4

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 4.28 AU - 5.7 AU

Year: 4134 Days

Day: 11.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,249,472 km

• M1: 131,646 km (0.119 R)
• M2: 767,437 km (0.111 R)
• M3: 1,204,412 km (0.097 R)
• M4: 1,638,396 km (0.082 R)
• M5: 2,450,862 km (0.098 R)
• M6: 2,924,040 km (0.078 R)
• M7: 4,519,651 km (0.093 R)
• M8: 4,856,695 km (0.081 R)
• M9: 5,709,104 km (0.111 R)
• M10: 6,802,066 km (0.062 R)
• M11: 11,239,587 km (0.089 R)
• M12: 14,290,785 km (0.092 R)
• M13: 16,820,186 km (0.078 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 345.5

Radius: 5.5

Gravity: 11.42 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 11.58 AU - 16.12 AU

Year: 19115 Days

Day: 15.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 77,249,472 km

• M1: 68,366 km (0.097 R)
• M2: 627,713 km (0.084 R)
• M3: 859,739 km (0.081 R)
• M4: 1,053,169 km (0.062 R)
• M5: 1,262,756 km (0.03 R)
• M6: 1,529,788 km (0.1 R)
• M7: 1,701,377 km (0.049 R)
• M8: 2,585,201 km (0.092 R)
• M9: 2,899,356 km (0.117 R)
• M10: 3,470,671 km (0.032 R)
• M11: 4,967,098 km (0.065 R)
• M12: 6,560,016 km (0.069 R)
• M13: 8,465,594 km (0.106 R)
• M14: 9,728,350 km (0.095 R)
• M15: 10,711,806 km (0.086 R)
• M16: 10,939,045 km (0.052 R)
• M17: 15,240,732 km (0.099 R)
• M18: 15,966,581 km (0.104 R)
• M19: 18,525,303 km (0.062 R)
• M20: 22,716,287 km (0.09 R)
• M21: 33,753,319 km (0.115 R)
• M22: 34,735,578 km (0.114 R)
• M23: 35,484,615 km (0.078 R)
• M24: 36,500,085 km (0.091 R)
• M25: 39,798,270 km (0.082 R)
• M26: 46,828,173 km (0.111 R)
• M27: 47,435,989 km (0.051 R)
• M28: 49,448,080 km (0.076 R)
• M29: 49,920,361 km (0.108 R)
• M30: 55,824,689 km (0.102 R)
• M31: 57,543,569 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.3

Radius: 7.7

Gravity: 11.73 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 12.14 AU - 16.7 AU

Year: 20307 Days

Day: 18.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 77,249,472 km

• M1: 312,061 km (0.096 R)
• M2: 650,452 km (0.101 R)
• M3: 2,137,454 km (0.082 R)
• M4: 2,484,372 km (0.108 R)
• M5: 3,319,427 km (0.047 R)
• M6: 4,099,730 km (0.043 R)
• M7: 5,183,267 km (0.08 R)
• M8: 6,272,938 km (0.11 R)
• M9: 7,605,556 km (0.083 R)
• M10: 11,452,615 km (0.084 R)
• M11: 11,712,765 km (0.097 R)
• M12: 12,312,354 km (0.109 R)
• M13: 13,285,488 km (0.12 R)
• M14: 13,645,121 km (0.09 R)
• M15: 15,149,328 km (0.084 R)
• M16: 16,594,892 km (0.116 R)
• M17: 18,042,401 km (0.071 R)
• M18: 24,141,955 km (0.107 R)
• M19: 25,996,370 km (0.095 R)
• M20: 27,130,621 km (0.063 R)
• M21: 31,998,386 km (0.068 R)
• M22: 34,772,828 km (0.117 R)
• M23: 42,947,903 km (0.079 R)
• M24: 50,552,112 km (0.112 R)
• M25: 56,716,592 km (0.082 R)
• M26: 59,978,723 km (0.083 R)
• M27: 60,370,520 km (0.113 R)
• M28: 65,206,421 km (0.117 R)
• M29: 71,606,367 km (0.111 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: 375 - 13,796 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit