🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.52 AU - 0.54 AU

Year: 253 Days

Day: 42.9 Hours

Environment

Temp: -122 °C

Axial Tilt: 1.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.2

Radius: 13.1

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.6 AU - 0.8 AU

Year: 384 Days

Day: 7.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,300,500 km

• M1: 162,912 km (0.103 R)
• M2: 784,790 km (0.113 R)
• M3: 1,413,999 km (0.108 R)
• M4: 1,827,488 km (0.117 R)
• M5: 2,476,892 km (0.059 R)
• M6: 3,003,028 km (0.108 R)
• M7: 4,821,240 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.2

Radius: 8.3

Gravity: 8.94 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.72 AU - 2.5 AU

Year: 2011 Days

Day: 5.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,300,500 km

• M1: 122,072 km (0.062 R)
• M2: 403,465 km (0.066 R)
• M3: 1,550,582 km (0.073 R)
• M4: 2,308,894 km (0.085 R)
• M5: 3,310,750 km (0.09 R)
• M6: 3,809,061 km (0.052 R)
• M7: 5,064,187 km (0.084 R)
• M8: 6,866,393 km (0.036 R)
• M9: 7,793,750 km (0.115 R)
• M10: 9,861,043 km (0.072 R)
• M11: 10,138,547 km (0.1 R)
• M12: 10,709,113 km (0.045 R)
• M13: 11,992,513 km (0.103 R)
• M14: 14,907,278 km (0.112 R)
• M15: 15,319,420 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798

Radius: 8.5

Gravity: 11.04 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.66 AU - 3.16 AU

Year: 3256 Days

Day: 9.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 63,300,500 km

• M1: 106,065 km (0.096 R)
• M2: 426,055 km (0.116 R)
• M3: 855,700 km (0.116 R)
• M4: 1,409,810 km (0.096 R)
• M5: 2,374,118 km (0.11 R)
• M6: 4,125,012 km (0.099 R)
• M7: 4,415,232 km (0.119 R)
• M8: 5,162,772 km (0.084 R)
• M9: 5,553,671 km (0.095 R)
• M10: 6,938,648 km (0.073 R)
• M11: 7,947,387 km (0.102 R)
• M12: 8,684,306 km (0.103 R)
• M13: 9,775,772 km (0.096 R)
• M14: 11,040,921 km (0.085 R)
• M15: 11,427,931 km (0.059 R)
• M16: 13,258,111 km (0.081 R)
• M17: 16,192,174 km (0.113 R)
• M18: 17,087,667 km (0.073 R)
• M19: 20,612,043 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.7

Radius: 9.4

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 3.19 AU - 4.81 AU

Year: 5248 Days

Day: 10.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,300,500 km

• M1: 117,135 km (0.077 R)
• M2: 413,489 km (0.109 R)
• M3: 766,539 km (0.112 R)
• M4: 1,086,679 km (0.111 R)
• M5: 2,363,347 km (0.092 R)
• M6: 2,722,681 km (0.069 R)
• M7: 3,137,067 km (0.068 R)
• M8: 3,429,830 km (0.06 R)
• M9: 4,589,962 km (0.118 R)
• M10: 4,943,013 km (0.101 R)
• M11: 5,451,047 km (0.097 R)
• M12: 6,698,095 km (0.12 R)
• M13: 8,382,118 km (0.057 R)
• M14: 9,994,335 km (0.034 R)
• M15: 10,546,051 km (0.093 R)
• M16: 11,252,901 km (0.096 R)
• M17: 11,756,897 km (0.075 R)
• M18: 12,810,066 km (0.101 R)
• M19: 16,993,720 km (0.046 R)
• M20: 17,964,759 km (0.047 R)
• M21: 20,017,242 km (0.111 R)
• M22: 20,621,618 km (0.094 R)
• M23: 25,120,624 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.6

Radius: 9.6

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.95 AU - 4.49 AU

Year: 5687 Days

Day: 10.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,300,500 km

• M1: 124,765 km (0.079 R)
• M2: 614,548 km (0.057 R)
• M3: 1,621,641 km (0.099 R)
• M4: 2,093,772 km (0.111 R)
• M5: 2,528,653 km (0.117 R)
• M6: 3,084,110 km (0.069 R)
• M7: 4,030,915 km (0.103 R)
• M8: 6,153,559 km (0.099 R)
• M9: 6,836,024 km (0.077 R)
• M10: 7,417,661 km (0.094 R)
• M11: 9,851,469 km (0.07 R)
• M12: 12,990,780 km (0.09 R)
• M13: 15,914,820 km (0.119 R)
• M14: 17,067,023 km (0.093 R)
• M15: 17,529,878 km (0.105 R)
• M16: 19,680,797 km (0.116 R)
• M17: 20,116,426 km (0.11 R)
• M18: 22,314,018 km (0.042 R)
• M19: 27,812,039 km (0.079 R)
• M20: 31,313,078 km (0.108 R)
• M21: 31,907,281 km (0.096 R)
• M22: 32,609,942 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.1

Radius: 12.3

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.11 AU - 5.31 AU

Year: 7801 Days

Day: 14 Hours

Environment

Temp: -210 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,300,500 km

• M1: 153,039 km (0.09 R)
• M2: 1,106,875 km (0.066 R)
• M3: 1,792,182 km (0.042 R)
• M4: 2,232,599 km (0.1 R)
• M5: 2,819,920 km (0.103 R)
• M6: 3,581,822 km (0.072 R)
• M7: 4,493,621 km (0.115 R)
• M8: 5,838,954 km (0.119 R)
• M9: 9,224,354 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.2

Radius: 12.2

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.82 AU - 6.02 AU

Year: 8278 Days

Day: 7.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,300,500 km

• M1: 156,779 km (0.086 R)
• M2: 654,640 km (0.098 R)
• M3: 1,326,185 km (0.116 R)
• M4: 1,782,907 km (0.084 R)
• M5: 2,282,116 km (0.072 R)
• M6: 2,730,161 km (0.114 R)
• M7: 3,217,102 km (0.118 R)
• M8: 3,784,078 km (0.063 R)
• M9: 4,541,492 km (0.052 R)
• M10: 5,511,784 km (0.102 R)
• M11: 6,138,898 km (0.077 R)
• M12: 10,858,412 km (0.083 R)
• M13: 11,462,488 km (0.099 R)
• M14: 13,728,597 km (0.038 R)
• M15: 14,270,141 km (0.106 R)
• M16: 15,454,058 km (0.058 R)
• M17: 16,278,791 km (0.066 R)
• M18: 17,444,907 km (0.096 R)
• M19: 18,274,427 km (0.09 R)
• M20: 20,428,038 km (0.102 R)
• M21: 23,658,903 km (0.098 R)
• M22: 26,377,845 km (0.114 R)
• M23: 29,477,213 km (0.09 R)
• M24: 30,470,693 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966

Radius: 3.9

Gravity: 63.51 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.01 AU - 8.47 AU

Year: 12780 Days

Day: 16.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,300,500 km

• M1: 48,619 km (0.117 R)
• M2: 237,412 km (0.073 R)
• M3: 922,869 km (0.105 R)
• M4: 1,639,593 km (0.109 R)
• M5: 2,645,788 km (0.094 R)
• M6: 4,127,106 km (0.097 R)
• M7: 4,407,901 km (0.072 R)
• M8: 4,701,263 km (0.064 R)
• M9: 4,835,901 km (0.1 R)
• M10: 4,972,932 km (0.078 R)
• M11: 5,112,657 km (0.085 R)
• M12: 6,408,174 km (0.101 R)
• M13: 6,913,366 km (0.112 R)
• M14: 9,253,675 km (0.114 R)
• M15: 13,039,100 km (0.072 R)
• M16: 13,574,810 km (0.051 R)
• M17: 15,639,560 km (0.059 R)
• M18: 15,939,952 km (0.107 R)
• M19: 17,100,383 km (0.072 R)
• M20: 18,316,015 km (0.104 R)
• M21: 18,817,916 km (0.114 R)
• M22: 19,762,028 km (0.084 R)
• M23: 23,460,985 km (0.109 R)
• M24: 26,097,648 km (0.082 R)
• M25: 26,626,327 km (0.033 R)
• M26: 31,234,240 km (0.114 R)
• M27: 31,471,652 km (0.083 R)
• M28: 37,404,554 km (0.107 R)
• M29: 42,859,790 km (0.111 R)
• M30: 45,852,495 km (0.119 R)
• M31: 46,621,877 km (0.104 R)
• M32: 63,111,003 km (0.06 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 12,307 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit