🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.61 AU - 0.65 AU

Year: 220 Days

Day: 15.6 Hours

Environment

Temp: 8 °C

Axial Tilt: 35.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.39 AU - 1.57 AU

Year: 792 Days

Day: 21 Hours

Environment

Temp: -95 °C

Axial Tilt: 13.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.7

Radius: 13.7

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.44 AU - 2.86 AU

Year: 1897 Days

Day: 13.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,162,737 km

• M1: 170,392 km (0.096 R)
• M2: 678,426 km (0.101 R)
• M3: 1,289,534 km (0.09 R)
• M4: 2,071,482 km (0.106 R)
• M5: 2,530,448 km (0.1 R)
• M6: 3,180,152 km (0.119 R)
• M7: 4,405,807 km (0.073 R)
• M8: 5,214,084 km (0.075 R)
• M9: 6,935,507 km (0.079 R)
• M10: 7,519,238 km (0.1 R)
• M11: 9,411,501 km (0.073 R)
• M12: 10,158,743 km (0.031 R)
• M13: 10,784,810 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.7

Radius: 10.7

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.76 AU - 2.82 AU

Year: 2049 Days

Day: 6.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,162,737 km

• M1: 133,292 km (0.113 R)
• M2: 809,025 km (0.115 R)
• M3: 1,148,164 km (0.099 R)
• M4: 2,270,447 km (0.085 R)
• M5: 4,335,197 km (0.083 R)
• M6: 5,650,611 km (0.1 R)
• M7: 6,034,928 km (0.091 R)
• M8: 6,582,755 km (0.035 R)
• M9: 7,137,464 km (0.074 R)
• M10: 7,695,763 km (0.099 R)
• M11: 8,690,888 km (0.114 R)
• M12: 9,234,976 km (0.105 R)
• M13: 9,673,896 km (0.114 R)
• M14: 10,028,443 km (0.053 R)
• M15: 10,525,856 km (0.098 R)
• M16: 11,074,431 km (0.11 R)
• M17: 11,498,392 km (0.079 R)
• M18: 12,229,177 km (0.084 R)
• M19: 12,835,647 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.7

Radius: 10.6

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.97 AU - 4.07 AU

Year: 3544 Days

Day: 11.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 62,162,737 km

• M1: 137,480 km (0.119 R)
• M2: 476,619 km (0.062 R)
• M3: 921,822 km (0.102 R)
• M4: 1,262,307 km (0.115 R)
• M5: 1,666,071 km (0.105 R)
• M6: 2,369,181 km (0.049 R)
• M7: 2,806,157 km (0.077 R)
• M8: 3,296,539 km (0.09 R)
• M9: 4,053,205 km (0.109 R)
• M10: 4,518,903 km (0.09 R)
• M11: 4,873,151 km (0.075 R)
• M12: 5,452,543 km (0.112 R)
• M13: 5,937,689 km (0.042 R)
• M14: 6,719,188 km (0.063 R)
• M15: 7,699,354 km (0.097 R)
• M16: 9,064,883 km (0.103 R)
• M17: 9,708,154 km (0.087 R)
• M18: 10,503,566 km (0.079 R)
• M19: 11,043,464 km (0.109 R)
• M20: 12,589,558 km (0.097 R)
• M21: 13,828,229 km (0.114 R)
• M22: 15,303,563 km (0.085 R)
• M23: 17,050,417 km (0.109 R)
• M24: 17,796,611 km (0.111 R)
• M25: 18,987,111 km (0.111 R)
• M26: 22,194,789 km (0.044 R)
• M27: 23,293,136 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.2

Radius: 10.3

Gravity: 8.74 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.81 AU - 5.83 AU

Year: 5396 Days

Day: 14.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 62,162,737 km

• M1: 135,984 km (0.096 R)
• M2: 655,687 km (0.028 R)
• M3: 1,141,133 km (0.118 R)
• M4: 2,594,625 km (0.065 R)
• M5: 3,491,913 km (0.081 R)
• M6: 4,172,135 km (0.034 R)
• M7: 4,910,550 km (0.111 R)
• M8: 5,827,286 km (0.101 R)
• M9: 6,376,310 km (0.09 R)
• M10: 8,036,398 km (0.072 R)
• M11: 8,758,507 km (0.094 R)
• M12: 9,093,157 km (0.094 R)
• M13: 13,860,991 km (0.08 R)
• M14: 15,742,034 km (0.085 R)
• M15: 16,679,863 km (0.049 R)
• M16: 17,325,378 km (0.086 R)
• M17: 19,152,118 km (0.069 R)
• M18: 20,365,955 km (0.07 R)
• M19: 22,710,602 km (0.085 R)
• M20: 24,315,339 km (0.104 R)
• M21: 27,749,507 km (0.068 R)
• M22: 28,109,889 km (0.065 R)
• M23: 28,473,262 km (0.104 R)
• M24: 30,528,288 km (0.1 R)
• M25: 31,105,436 km (0.089 R)
• M26: 33,284,329 km (0.057 R)
• M27: 33,691,086 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.4

Radius: 10.9

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.01 AU - 6.97 AU

Year: 6446 Days

Day: 5.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,162,737 km

• M1: 136,433 km (0.119 R)
• M2: 716,574 km (0.104 R)
• M3: 1,126,173 km (0.065 R)
• M4: 1,671,158 km (0.059 R)
• M5: 2,070,435 km (0.088 R)
• M6: 2,609,585 km (0.114 R)
• M7: 3,729,176 km (0.055 R)
• M8: 4,419,570 km (0.117 R)
• M9: 6,739,384 km (0.058 R)
• M10: 7,699,054 km (0.065 R)
• M11: 8,468,287 km (0.115 R)
• M12: 10,475,292 km (0.114 R)
• M13: 11,377,367 km (0.048 R)
• M14: 12,872,598 km (0.048 R)
• M15: 13,289,377 km (0.098 R)
• M16: 17,739,764 km (0.096 R)
• M17: 19,259,529 km (0.1 R)
• M18: 21,569,619 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.1

Radius: 7.2

Gravity: 15.94 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 8.89 AU - 10.67 AU

Year: 13449 Days

Day: 17.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 62,162,737 km

• M1: 89,609 km (0.106 R)
• M2: 463,753 km (0.116 R)
• M3: 768,634 km (0.077 R)
• M4: 1,352,514 km (0.073 R)
• M5: 2,819,920 km (0.077 R)
• M6: 3,182,994 km (0.101 R)
• M7: 3,771,662 km (0.093 R)
• M8: 4,305,427 km (0.072 R)
• M9: 4,558,247 km (0.028 R)
• M10: 5,163,819 km (0.099 R)
• M11: 6,371,074 km (0.116 R)
• M12: 8,083,820 km (0.069 R)
• M13: 10,586,892 km (0.107 R)
• M14: 11,107,791 km (0.115 R)
• M15: 13,164,912 km (0.103 R)
• M16: 13,903,626 km (0.097 R)
• M17: 14,598,807 km (0.112 R)
• M18: 17,693,090 km (0.069 R)
• M19: 18,261,711 km (0.073 R)
• M20: 18,926,524 km (0.084 R)
• M21: 22,969,855 km (0.093 R)
• M22: 29,095,589 km (0.107 R)
• M23: 39,159,786 km (0.077 R)
• M24: 40,824,212 km (0.088 R)
• M25: 43,554,822 km (0.108 R)
• M26: 44,889,833 km (0.077 R)
• M27: 47,020,406 km (0.114 R)
• M28: 47,953,897 km (0.082 R)
• M29: 50,665,508 km (0.103 R)
• M30: 53,477,798 km (0.086 R)
• M31: 55,697,232 km (0.118 R)
• M32: 60,501,867 km (0.039 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 302 - 13,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit