🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.97 AU - 1.37 AU

Year: 545 Days

Day: 23.7 Hours

Environment

Temp: -72 °C

Axial Tilt: 99.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.31 AU - 1.55 AU

Year: 736 Days

Day: 23.6 Hours

Environment

Temp: -97 °C

Axial Tilt: 4.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,926,122 km

• M1: 65,823 km (0.078 R)

Asteroid Belt

Center: 2.19 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.3

Radius: 10.6

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.84 AU - 3.04 AU

Year: 2170 Days

Day: 13.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,926,122 km

• M1: 132,394 km (0.091 R)
• M2: 633,098 km (0.116 R)
• M3: 989,141 km (0.106 R)
• M4: 2,741,082 km (0.061 R)
• M5: 3,599,175 km (0.097 R)
• M6: 4,021,041 km (0.052 R)
• M7: 4,432,884 km (0.05 R)
• M8: 4,964,405 km (0.041 R)
• M9: 5,390,610 km (0.1 R)
• M10: 5,841,198 km (0.075 R)
• M11: 7,774,601 km (0.113 R)
• M12: 8,350,852 km (0.086 R)
• M13: 9,552,572 km (0.086 R)
• M14: 12,424,851 km (0.101 R)
• M15: 13,123,772 km (0.082 R)
• M16: 13,710,794 km (0.116 R)
• M17: 15,627,442 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.2

Radius: 12.8

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.48 AU - 3.56 AU

Year: 2259 Days

Day: 9.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,926,122 km

• M1: 159,471 km (0.094 R)
• M2: 837,748 km (0.117 R)
• M3: 1,528,890 km (0.11 R)
• M4: 3,243,282 km (0.075 R)
• M5: 4,715,026 km (0.097 R)
• M6: 6,454,400 km (0.088 R)
• M7: 7,439,203 km (0.063 R)
• M8: 9,276,115 km (0.054 R)
• M9: 10,567,893 km (0.073 R)
• M10: 11,117,067 km (0.115 R)
• M11: 12,315,196 km (0.087 R)
• M12: 14,106,630 km (0.112 R)
• M13: 15,460,192 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.7

Radius: 11.2

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.1 AU - 4.2 AU

Year: 3002 Days

Day: 12.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,926,122 km

• M1: 139,425 km (0.095 R)
• M2: 569,070 km (0.052 R)
• M3: 1,102,836 km (0.052 R)
• M4: 1,699,133 km (0.032 R)
• M5: 2,164,232 km (0.086 R)
• M6: 2,972,210 km (0.048 R)
• M7: 3,446,436 km (0.118 R)
• M8: 3,849,752 km (0.076 R)
• M9: 4,752,276 km (0.059 R)
• M10: 6,251,396 km (0.11 R)
• M11: 8,515,859 km (0.093 R)
• M12: 9,403,722 km (0.071 R)
• M13: 9,965,462 km (0.07 R)
• M14: 10,470,355 km (0.077 R)
• M15: 13,913,799 km (0.111 R)
• M16: 14,348,680 km (0.08 R)
• M17: 19,630,981 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.2

Radius: 13.9

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.65 AU - 4.91 AU

Year: 4498 Days

Day: 14.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,926,122 km

• M1: 172,935 km (0.107 R)
• M2: 990,338 km (0.05 R)
• M3: 1,730,997 km (0.086 R)
• M4: 2,197,892 km (0.081 R)
• M5: 2,707,422 km (0.071 R)
• M6: 3,216,055 km (0.093 R)
• M7: 3,665,148 km (0.098 R)
• M8: 4,528,477 km (0.042 R)
• M9: 5,030,528 km (0.097 R)
• M10: 5,686,963 km (0.074 R)
• M11: 6,554,780 km (0.075 R)
• M12: 7,452,368 km (0.101 R)
• M13: 8,399,472 km (0.082 R)
• M14: 9,525,644 km (0.112 R)
• M15: 10,003,310 km (0.113 R)
• M16: 10,786,605 km (0.099 R)
• M17: 11,268,460 km (0.101 R)
• M18: 13,767,492 km (0.041 R)
• M19: 14,423,778 km (0.078 R)
• M20: 15,009,454 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.6

Radius: 10.3

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.4 AU - 6.26 AU

Year: 5297 Days

Day: 5.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,926,122 km

• M1: 213,626 km (0.108 R)
• M2: 561,740 km (0.077 R)
• M3: 1,029,832 km (0.09 R)
• M4: 1,690,157 km (0.07 R)
• M5: 3,683,997 km (0.069 R)
• M6: 4,118,130 km (0.076 R)
• M7: 4,750,181 km (0.091 R)
• M8: 6,010,693 km (0.037 R)
• M9: 6,904,540 km (0.082 R)
• M10: 9,147,461 km (0.053 R)
• M11: 9,541,502 km (0.112 R)
• M12: 11,953,618 km (0.069 R)
• M13: 14,260,567 km (0.068 R)
• M14: 14,791,041 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.9

Radius: 7.5

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 10 AU - 13.32 AU

Year: 17138 Days

Day: 17.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,926,122 km

• M1: 109,805 km (0.049 R)
• M2: 367,412 km (0.032 R)
• M3: 645,814 km (0.115 R)
• M4: 2,716,099 km (0.055 R)
• M5: 3,576,287 km (0.095 R)
• M6: 4,332,354 km (0.09 R)
• M7: 4,637,983 km (0.09 R)
• M8: 7,496,050 km (0.067 R)
• M9: 9,116,943 km (0.082 R)
• M10: 11,014,742 km (0.109 R)
• M11: 15,857,524 km (0.115 R)
• M12: 26,923,129 km (0.066 R)
• M13: 40,066,349 km (0.056 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 19,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit