🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.98

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.5 AU - 0.52 AU

Year: 160 Days

Day: 44.7 Hours

Environment

Temp: 27 °C

Axial Tilt: 2.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 102,671,654 km

• M1: 343,028 km (0.059 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.51 AU - 0.51 AU

Year: 160 Days

Day: 19.2 Hours

Environment

Temp: 19 °C

Axial Tilt: 21.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.79 AU - 0.95 AU

Year: 357 Days

Day: 28.4 Hours

Environment

Temp: -58 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.85 AU - 1.33 AU

Year: 500 Days

Day: 37.2 Hours

Environment

Temp: -73 °C

Axial Tilt: 0.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 102,671,654 km

• M1: 52,658 km (0.064 R)
• M2: 83,625 km (0.112 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.19 AU - 1.33 AU

Year: 622 Days

Day: 24.8 Hours

Environment

Temp: -93 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.43 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.7

Radius: 9.9

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4.88 AU - 6.32 AU

Year: 5827 Days

Day: 7.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 102,671,654 km

• M1: 123,119 km (0.094 R)
• M2: 511,026 km (0.111 R)
• M3: 872,904 km (0.119 R)
• M4: 1,421,030 km (0.091 R)
• M5: 2,507,859 km (0.099 R)
• M6: 3,226,377 km (0.062 R)
• M7: 3,711,074 km (0.063 R)
• M8: 4,643,967 km (0.096 R)
• M9: 7,384,300 km (0.085 R)
• M10: 7,853,739 km (0.059 R)
• M11: 9,466,104 km (0.087 R)
• M12: 9,847,729 km (0.118 R)
• M13: 11,101,060 km (0.07 R)
• M14: 13,071,862 km (0.104 R)
• M15: 13,439,274 km (0.084 R)
• M16: 15,614,278 km (0.105 R)
• M17: 16,754,662 km (0.084 R)
• M18: 18,535,176 km (0.061 R)
• M19: 19,744,376 km (0.103 R)
• M20: 20,720,502 km (0.096 R)
• M21: 21,801,945 km (0.093 R)
• M22: 25,271,568 km (0.102 R)
• M23: 25,760,454 km (0.097 R)
• M24: 28,474,758 km (0.083 R)
• M25: 29,450,286 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.1

Radius: 13

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 7.16 AU - 10.46 AU

Year: 11498 Days

Day: 8 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 102,671,654 km

• M1: 164,707 km (0.104 R)
• M2: 875,596 km (0.077 R)
• M3: 1,388,567 km (0.036 R)
• M4: 1,872,068 km (0.093 R)
• M5: 2,536,432 km (0.064 R)
• M6: 4,647,407 km (0.119 R)
• M7: 5,599,598 km (0.077 R)
• M8: 6,186,171 km (0.072 R)
• M9: 6,678,049 km (0.083 R)
• M10: 7,703,393 km (0.079 R)
• M11: 8,469,783 km (0.106 R)
• M12: 9,118,888 km (0.1 R)
• M13: 10,289,641 km (0.114 R)
• M14: 12,460,156 km (0.087 R)
• M15: 13,408,457 km (0.11 R)
• M16: 14,978,487 km (0.073 R)
• M17: 15,448,972 km (0.049 R)
• M18: 15,868,594 km (0.07 R)
• M19: 17,559,050 km (0.105 R)
• M20: 22,344,237 km (0.053 R)
• M21: 24,302,772 km (0.074 R)
• M22: 25,448,243 km (0.108 R)
• M23: 27,060,011 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.4

Radius: 5.2

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 14.55 AU - 14.81 AU

Year: 24732 Days

Day: 16.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 102,671,654 km

• M1: 64,626 km (0.074 R)
• M2: 276,307 km (0.088 R)
• M3: 478,115 km (0.051 R)
• M4: 680,521 km (0.074 R)
• M5: 984,055 km (0.103 R)
• M6: 1,345,782 km (0.068 R)
• M7: 1,659,788 km (0.112 R)
• M8: 2,330,735 km (0.056 R)
• M9: 2,761,277 km (0.112 R)
• M10: 3,585,412 km (0.115 R)
• M11: 6,772,296 km (0.087 R)
• M12: 7,375,175 km (0.088 R)
• M13: 7,553,944 km (0.12 R)
• M14: 8,154,580 km (0.063 R)
• M15: 9,661,629 km (0.119 R)
• M16: 9,875,703 km (0.102 R)
• M17: 11,643,501 km (0.108 R)
• M18: 15,791,402 km (0.102 R)
• M19: 17,551,421 km (0.113 R)
• M20: 19,951,718 km (0.114 R)
• M21: 21,185,153 km (0.087 R)
• M22: 21,365,418 km (0.079 R)
• M23: 21,546,581 km (0.082 R)
• M24: 22,844,492 km (0.046 R)
• M25: 25,391,546 km (0.088 R)
• M26: 25,902,123 km (0.033 R)
• M27: 26,315,462 km (0.083 R)
• M28: 29,557,248 km (0.027 R)
• M29: 33,420,015 km (0.07 R)
• M30: 35,408,320 km (0.083 R)
• M31: 47,153,099 km (0.101 R)
• M32: 47,924,127 km (0.054 R)
• M33: 48,547,052 km (0.075 R)
• M34: 53,391,929 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.6

Radius: 5.3

Gravity: 33.09 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 13.96 AU - 17.1 AU

Year: 26911 Days

Day: 15.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 102,671,654 km

• M1: 65,973 km (0.063 R)
• M2: 234,569 km (0.092 R)
• M3: 510,278 km (0.1 R)
• M4: 1,029,832 km (0.061 R)
• M5: 1,414,597 km (0.108 R)
• M6: 1,649,915 km (0.108 R)
• M7: 1,975,440 km (0.111 R)
• M8: 2,646,835 km (0.117 R)
• M9: 3,063,914 km (0.116 R)
• M10: 5,055,361 km (0.115 R)
• M11: 5,476,778 km (0.101 R)
• M12: 5,785,398 km (0.028 R)
• M13: 7,086,002 km (0.09 R)
• M14: 7,399,559 km (0.111 R)
• M15: 7,887,099 km (0.119 R)
• M16: 8,926,056 km (0.03 R)
• M17: 12,360,524 km (0.064 R)
• M18: 15,428,178 km (0.075 R)
• M19: 15,777,938 km (0.116 R)
• M20: 16,859,082 km (0.118 R)
• M21: 19,879,163 km (0.049 R)
• M22: 23,013,538 km (0.052 R)
• M23: 28,899,317 km (0.093 R)
• M24: 32,901,209 km (0.097 R)
• M25: 35,109,124 km (0.099 R)
• M26: 36,789,707 km (0.09 R)
• M27: 39,491,145 km (0.108 R)
• M28: 42,835,406 km (0.105 R)
• M29: 44,752,652 km (0.07 R)
• M30: 50,080,430 km (0.109 R)
• M31: 56,432,655 km (0.046 R)
• M32: 61,753,702 km (0.105 R)
• M33: 68,803,801 km (0.079 R)
• M34: 71,187,493 km (0.094 R)
• M35: 75,365,313 km (0.056 R)
• M36: 84,745,847 km (0.034 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 275 - 15,993 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit