🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.5 AU - 0.7 AU

Year: 300 Days

Day: 13.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 48.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 34,844,532 km

• M1: 34,856 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.7

Radius: 14.6

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.56 AU - 0.84 AU

Year: 378 Days

Day: 7.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,844,532 km

• M1: 181,612 km (0.025 R)
• M2: 675,734 km (0.119 R)
• M3: 1,152,053 km (0.101 R)
• M4: 1,625,381 km (0.083 R)
• M5: 2,120,849 km (0.049 R)
• M6: 2,861,358 km (0.12 R)
• M7: 3,522,880 km (0.105 R)
• M8: 4,028,371 km (0.052 R)
• M9: 4,893,496 km (0.116 R)
• M10: 5,692,349 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 13.7

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.81 AU - 0.97 AU

Year: 542 Days

Day: 6.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,844,532 km

• M1: 170,392 km (0.109 R)
• M2: 674,836 km (0.107 R)
• M3: 1,121,386 km (0.091 R)
• M4: 1,889,720 km (0.06 R)
• M5: 2,475,097 km (0.12 R)
• M6: 2,965,927 km (0.071 R)
• M7: 4,176,623 km (0.119 R)
• M8: 5,180,724 km (0.116 R)
• M9: 6,106,585 km (0.085 R)
• M10: 6,538,923 km (0.103 R)
• M11: 7,312,344 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.1

Radius: 8.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.25 AU - 4.53 AU

Year: 4954 Days

Day: 8.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,844,532 km

• M1: 134,937 km (0.049 R)
• M2: 646,861 km (0.052 R)
• M3: 1,352,664 km (0.116 R)
• M4: 1,634,357 km (0.102 R)
• M5: 3,092,338 km (0.106 R)
• M6: 5,217,226 km (0.09 R)
• M7: 5,534,672 km (0.093 R)
• M8: 6,842,158 km (0.111 R)
• M9: 7,451,919 km (0.078 R)
• M10: 7,855,384 km (0.091 R)
• M11: 10,590,033 km (0.087 R)
• M12: 11,361,809 km (0.046 R)
• M13: 14,775,183 km (0.11 R)
• M14: 16,971,729 km (0.116 R)
• M15: 20,076,633 km (0.078 R)
• M16: 20,530,363 km (0.042 R)
• M17: 21,593,256 km (0.07 R)
• M18: 22,344,985 km (0.088 R)
• M19: 24,557,538 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.3

Radius: 14.9

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.82 AU - 4.56 AU

Year: 5538 Days

Day: 14.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,844,532 km

• M1: 186,698 km (0.119 R)
• M2: 882,777 km (0.048 R)
• M3: 2,829,045 km (0.086 R)
• M4: 3,635,827 km (0.043 R)
• M5: 6,877,762 km (0.062 R)
• M6: 12,332,250 km (0.084 R)
• M7: 16,030,459 km (0.104 R)
• M8: 19,705,929 km (0.08 R)
• M9: 21,807,330 km (0.066 R)
• M10: 23,693,610 km (0.051 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 998.4

Radius: 6.9

Gravity: 20.97 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.08 AU - 7.1 AU

Year: 9704 Days

Day: 21.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 34,844,532 km

• M1: 86,318 km (0.094 R)
• M2: 365,916 km (0.089 R)
• M3: 793,766 km (0.119 R)
• M4: 1,109,567 km (0.058 R)
• M5: 1,701,077 km (0.083 R)
• M6: 2,139,399 km (0.08 R)
• M7: 2,736,145 km (0.057 R)
• M8: 4,025,978 km (0.091 R)
• M9: 5,161,725 km (0.074 R)
• M10: 5,502,210 km (0.073 R)
• M11: 5,785,398 km (0.101 R)
• M12: 6,190,659 km (0.045 R)
• M13: 7,099,017 km (0.118 R)
• M14: 7,825,465 km (0.093 R)
• M15: 12,945,452 km (0.073 R)
• M16: 13,638,688 km (0.08 R)
• M17: 21,462,208 km (0.084 R)
• M18: 22,521,959 km (0.063 R)
• M19: 25,910,351 km (0.09 R)
• M20: 26,207,153 km (0.072 R)
• M21: 29,194,623 km (0.074 R)
• M22: 33,326,067 km (0.114 R)
• M23: 34,745,302 km (0.096 R)
• M24: 40,162,241 km (0.108 R)
• M25: 42,863,231 km (0.104 R)
• M26: 47,580,351 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.1

Radius: 4.7

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 7.78 AU - 8.36 AU

Year: 14802 Days

Day: 20.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 34,844,532 km

• M1: 64,177 km (0.095 R)
• M2: 362,476 km (0.062 R)
• M3: 797,805 km (0.068 R)
• M4: 997,668 km (0.119 R)
• M5: 2,153,761 km (0.092 R)
• M6: 2,335,223 km (0.039 R)
• M7: 3,001,532 km (0.12 R)
• M8: 3,207,229 km (0.084 R)
• M9: 5,266,593 km (0.111 R)
• M10: 5,814,420 km (0.097 R)
• M11: 6,005,307 km (0.076 R)
• M12: 6,200,233 km (0.086 R)
• M13: 7,202,838 km (0.03 R)
• M14: 7,497,396 km (0.089 R)
• M15: 8,592,004 km (0.054 R)
• M16: 8,756,562 km (0.115 R)
• M17: 13,096,396 km (0.097 R)
• M18: 14,384,434 km (0.103 R)
• M19: 20,310,305 km (0.092 R)
• M20: 29,601,529 km (0.071 R)
• M21: 30,356,550 km (0.113 R)
• M22: 30,738,922 km (0.041 R)
• M23: 31,610,778 km (0.078 R)
• M24: 32,399,608 km (0.083 R)
• M25: 33,201,303 km (0.042 R)
• M26: 34,740,216 km (0.097 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 12,910 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit