🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.6 AU - 0.68 AU

Year: 326 Days

Day: 45.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,979,810 km

• M1: 47,722 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.7

Radius: 12.9

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.87 AU - 1.21 AU

Year: 674 Days

Day: 14.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,979,810 km

• M1: 160,668 km (0.073 R)
• M2: 654,042 km (0.119 R)
• M3: 1,132,456 km (0.06 R)
• M4: 1,789,191 km (0.111 R)
• M5: 2,883,798 km (0.117 R)
• M6: 3,405,745 km (0.082 R)
• M7: 4,082,975 km (0.079 R)
• M8: 5,345,880 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.4

Radius: 14.3

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.95 AU - 2.57 AU

Year: 2160 Days

Day: 8.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,979,810 km

• M1: 177,872 km (0.11 R)
• M2: 635,043 km (0.087 R)
• M3: 1,228,498 km (0.11 R)
• M4: 1,802,056 km (0.071 R)
• M5: 2,442,185 km (0.1 R)
• M6: 3,542,478 km (0.064 R)
• M7: 4,862,080 km (0.067 R)
• M8: 5,585,835 km (0.109 R)
• M9: 6,597,416 km (0.097 R)
• M10: 7,249,214 km (0.03 R)
• M11: 7,975,062 km (0.037 R)
• M12: 8,748,783 km (0.086 R)
• M13: 9,396,541 km (0.075 R)
• M14: 11,019,828 km (0.105 R)
• M15: 15,937,260 km (0.111 R)
• M16: 16,853,098 km (0.087 R)
• M17: 17,750,087 km (0.099 R)
• M18: 18,292,379 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.8

Radius: 11.4

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.85 AU - 3.05 AU

Year: 2438 Days

Day: 10.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,979,810 km

• M1: 141,819 km (0.077 R)
• M2: 762,201 km (0.052 R)
• M3: 1,757,326 km (0.101 R)
• M4: 3,029,955 km (0.032 R)
• M5: 3,492,961 km (0.096 R)
• M6: 3,889,694 km (0.095 R)
• M7: 4,336,693 km (0.048 R)
• M8: 4,861,332 km (0.104 R)
• M9: 5,522,705 km (0.066 R)
• M10: 6,347,288 km (0.037 R)
• M11: 7,367,396 km (0.095 R)
• M12: 10,121,194 km (0.047 R)
• M13: 10,595,718 km (0.071 R)
• M14: 10,970,760 km (0.029 R)
• M15: 14,118,748 km (0.117 R)
• M16: 16,591,301 km (0.046 R)
• M17: 16,995,664 km (0.027 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.9

Radius: 12.1

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.28 AU - 3.86 AU

Year: 4289 Days

Day: 13 Hours

Environment

Temp: -199 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,979,810 km

• M1: 150,495 km (0.073 R)
• M2: 662,719 km (0.096 R)
• M3: 1,134,251 km (0.114 R)
• M4: 2,532,094 km (0.09 R)
• M5: 2,979,541 km (0.064 R)
• M6: 4,270,271 km (0.106 R)
• M7: 4,813,910 km (0.039 R)
• M8: 6,492,548 km (0.07 R)
• M9: 6,967,371 km (0.042 R)
• M10: 7,465,233 km (0.072 R)
• M11: 8,743,397 km (0.041 R)
• M12: 9,212,686 km (0.077 R)
• M13: 13,547,882 km (0.043 R)
• M14: 14,128,173 km (0.118 R)
• M15: 15,235,197 km (0.105 R)
• M16: 16,453,522 km (0.07 R)
• M17: 17,338,543 km (0.086 R)
• M18: 18,022,953 km (0.079 R)
• M19: 19,023,164 km (0.095 R)
• M20: 22,113,856 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.2

Radius: 9

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.91 AU - 4.87 AU

Year: 5848 Days

Day: 12.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 33,979,810 km

• M1: 111,899 km (0.044 R)
• M2: 413,040 km (0.114 R)
• M3: 1,243,158 km (0.1 R)
• M4: 2,213,300 km (0.086 R)
• M5: 3,954,021 km (0.078 R)
• M6: 5,044,590 km (0.091 R)
• M7: 5,644,328 km (0.109 R)
• M8: 6,358,059 km (0.119 R)
• M9: 7,277,637 km (0.098 R)
• M10: 7,577,731 km (0.087 R)
• M11: 7,964,591 km (0.109 R)
• M12: 9,247,991 km (0.08 R)
• M13: 10,145,877 km (0.077 R)
• M14: 10,473,646 km (0.104 R)
• M15: 10,954,005 km (0.05 R)
• M16: 11,549,704 km (0.092 R)
• M17: 12,114,735 km (0.088 R)
• M18: 12,969,238 km (0.09 R)
• M19: 13,467,249 km (0.092 R)
• M20: 14,797,922 km (0.115 R)
• M21: 17,651,502 km (0.11 R)
• M22: 17,989,742 km (0.101 R)
• M23: 18,609,227 km (0.068 R)
• M24: 20,702,849 km (0.102 R)
• M25: 23,677,453 km (0.105 R)
• M26: 25,266,482 km (0.081 R)
• M27: 25,956,427 km (0.105 R)
• M28: 32,236,097 km (0.047 R)
• M29: 35,563,902 km (0.114 R)
• M30: 35,887,183 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 881.3

Radius: 6.4

Gravity: 21.52 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.98 AU - 8.94 AU

Year: 12955 Days

Day: 21.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 33,979,810 km

• M1: 79,586 km (0.072 R)
• M2: 314,455 km (0.117 R)
• M3: 552,615 km (0.079 R)
• M4: 1,542,354 km (0.101 R)
• M5: 2,598,365 km (0.097 R)
• M6: 3,610,545 km (0.055 R)
• M7: 3,835,241 km (0.094 R)
• M8: 4,069,361 km (0.027 R)
• M9: 5,137,640 km (0.076 R)
• M10: 5,717,930 km (0.109 R)
• M11: 6,063,052 km (0.107 R)
• M12: 6,669,073 km (0.084 R)
• M13: 11,720,245 km (0.086 R)
• M14: 12,722,850 km (0.077 R)
• M15: 14,683,779 km (0.1 R)
• M16: 18,193,794 km (0.068 R)
• M17: 23,854,428 km (0.117 R)
• M18: 28,770,064 km (0.064 R)
• M19: 30,355,203 km (0.066 R)
• M20: 31,286,599 km (0.049 R)
• M21: 33,084,317 km (0.11 R)
• M22: 35,458,734 km (0.049 R)
• M23: 42,245,541 km (0.04 R)
• M24: 44,141,993 km (0.088 R)
• M25: 45,186,336 km (0.093 R)
• M26: 50,818,546 km (0.091 R)
• M27: 51,800,507 km (0.116 R)
• M28: 52,628,531 km (0.105 R)
• M29: 54,140,965 km (0.104 R)
• M30: 56,725,867 km (0.089 R)
• M31: 61,399,155 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47

Radius: 3.8

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 9.55 AU - 12.19 AU

Year: 22786 Days

Day: 17.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,979,810 km

• M1: 49,068 km (0.106 R)
• M2: 238,609 km (0.066 R)
• M3: 1,222,813 km (0.09 R)
• M4: 1,938,788 km (0.083 R)
• M5: 3,222,488 km (0.082 R)
• M6: 3,706,886 km (0.118 R)
• M7: 5,272,577 km (0.082 R)
• M8: 6,945,680 km (0.086 R)
• M9: 7,863,462 km (0.112 R)
• M10: 10,622,945 km (0.114 R)
• M11: 11,049,598 km (0.029 R)
• M12: 11,636,321 km (0.052 R)
• M13: 12,295,000 km (0.06 R)
• M14: 13,465,753 km (0.098 R)
• M15: 17,485,897 km (0.114 R)
• M16: 18,416,395 km (0.087 R)
• M17: 18,893,762 km (0.05 R)
• M18: 24,784,029 km (0.051 R)
• M19: 26,126,969 km (0.061 R)
• M20: 29,140,169 km (0.102 R)
• M21: 30,350,865 km (0.079 R)
• M22: 31,112,468 km (0.108 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 15,297 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit