🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.47 AU - 0.61 AU

Year: 252 Days

Day: 37.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,662,780 km

• M1: 479,012 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.4

Radius: 10.4

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.9 AU - 1.06 AU

Year: 617 Days

Day: 14.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,662,780 km

• M1: 129,402 km (0.092 R)
• M2: 543,339 km (0.087 R)
• M3: 867,219 km (0.066 R)
• M4: 1,505,553 km (0.105 R)
• M5: 1,864,887 km (0.109 R)
• M6: 2,199,238 km (0.09 R)
• M7: 2,563,659 km (0.088 R)
• M8: 3,128,391 km (0.107 R)
• M9: 4,186,197 km (0.114 R)
• M10: 4,612,701 km (0.074 R)
• M11: 5,133,152 km (0.083 R)
• M12: 5,674,846 km (0.076 R)
• M13: 6,161,188 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.5

Radius: 13.4

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.02 AU - 1.36 AU

Year: 825 Days

Day: 14.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,662,780 km

• M1: 166,802 km (0.032 R)
• M2: 602,879 km (0.108 R)
• M3: 1,083,388 km (0.101 R)
• M4: 1,917,246 km (0.049 R)
• M5: 2,454,901 km (0.096 R)
• M6: 3,135,422 km (0.076 R)
• M7: 3,926,495 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.2

Radius: 11

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.16 AU - 1.78 AU

Year: 1133 Days

Day: 8.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,662,780 km

• M1: 136,882 km (0.078 R)
• M2: 492,327 km (0.09 R)
• M3: 863,479 km (0.069 R)
• M4: 1,607,728 km (0.073 R)
• M5: 3,468,576 km (0.078 R)
• M6: 5,146,466 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.9

Radius: 13.3

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.85 AU - 2.33 AU

Year: 1921 Days

Day: 12.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,662,780 km

• M1: 166,802 km (0.105 R)
• M2: 1,433,596 km (0.095 R)
• M3: 2,440,988 km (0.103 R)
• M4: 2,894,270 km (0.11 R)
• M5: 4,072,054 km (0.106 R)
• M6: 5,020,654 km (0.048 R)
• M7: 6,693,458 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.2

Radius: 12.2

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.98 AU - 2.38 AU

Year: 2047 Days

Day: 11.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,662,780 km

• M1: 157,527 km (0.065 R)
• M2: 711,039 km (0.091 R)
• M3: 1,112,410 km (0.07 R)
• M4: 1,943,576 km (0.059 R)
• M5: 2,611,081 km (0.112 R)
• M6: 3,247,919 km (0.051 R)
• M7: 3,840,776 km (0.086 R)
• M8: 4,405,508 km (0.063 R)
• M9: 5,199,872 km (0.118 R)
• M10: 5,796,768 km (0.047 R)
• M11: 6,490,304 km (0.039 R)
• M12: 7,490,964 km (0.04 R)
• M13: 7,954,268 km (0.092 R)
• M14: 11,870,591 km (0.081 R)
• M15: 12,989,733 km (0.119 R)
• M16: 14,486,011 km (0.117 R)
• M17: 15,298,925 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.7

Radius: 14.1

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.23 AU - 3.47 AU

Year: 3059 Days

Day: 8.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,662,780 km

• M1: 175,628 km (0.09 R)
• M2: 662,719 km (0.109 R)
• M3: 1,154,746 km (0.078 R)
• M4: 2,289,595 km (0.084 R)
• M5: 3,163,097 km (0.057 R)
• M6: 4,638,432 km (0.096 R)
• M7: 5,178,480 km (0.059 R)
• M8: 6,326,793 km (0.027 R)
• M9: 7,343,311 km (0.11 R)
• M10: 8,045,224 km (0.103 R)
• M11: 9,505,897 km (0.112 R)
• M12: 11,396,964 km (0.089 R)
• M13: 16,298,538 km (0.079 R)
• M14: 17,089,462 km (0.106 R)
• M15: 17,552,917 km (0.109 R)
• M16: 18,809,239 km (0.096 R)
• M17: 19,806,160 km (0.078 R)
• M18: 20,576,888 km (0.101 R)
• M19: 23,717,396 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.9

Radius: 9.8

Gravity: 9.62 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.16 AU - 3.82 AU

Year: 4145 Days

Day: 9.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,662,780 km

• M1: 121,922 km (0.08 R)
• M2: 512,223 km (0.107 R)
• M3: 829,670 km (0.103 R)
• M4: 2,453,106 km (0.067 R)
• M5: 2,883,948 km (0.099 R)
• M6: 3,244,479 km (0.072 R)
• M7: 3,765,229 km (0.093 R)
• M8: 4,244,690 km (0.1 R)
• M9: 5,638,194 km (0.116 R)
• M10: 7,178,005 km (0.11 R)
• M11: 8,211,577 km (0.107 R)
• M12: 8,551,762 km (0.09 R)
• M13: 9,099,739 km (0.114 R)
• M14: 10,528,100 km (0.096 R)
• M15: 12,003,733 km (0.088 R)
• M16: 14,197,736 km (0.119 R)
• M17: 14,633,664 km (0.077 R)
• M18: 15,475,002 km (0.114 R)
• M19: 16,646,503 km (0.058 R)
• M20: 18,192,747 km (0.1 R)
• M21: 21,497,513 km (0.053 R)
• M22: 22,805,896 km (0.088 R)
• M23: 23,936,108 km (0.113 R)
• M24: 25,580,637 km (0.104 R)
• M25: 27,550,692 km (0.105 R)
• M26: 27,973,605 km (0.114 R)
• M27: 28,314,987 km (0.097 R)
• M28: 29,006,130 km (0.104 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.8

Radius: 14.6

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 5.2 AU - 6.48 AU

Year: 8973 Days

Day: 10.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,662,780 km

• M1: 185,053 km (0.116 R)
• M2: 747,391 km (0.097 R)
• M3: 1,246,749 km (0.117 R)
• M4: 1,961,228 km (0.087 R)
• M5: 5,652,256 km (0.025 R)
• M6: 8,657,678 km (0.101 R)
• M7: 9,348,371 km (0.08 R)
• M8: 13,610,863 km (0.095 R)
• M9: 14,673,906 km (0.097 R)
• M10: 15,324,656 km (0.107 R)
• M11: 21,493,025 km (0.098 R)
• M12: 23,194,851 km (0.091 R)
• M13: 25,168,944 km (0.043 R)
• M14: 26,102,435 km (0.105 R)
• M15: 28,038,381 km (0.12 R)
• M16: 28,537,140 km (0.09 R)
• M17: 29,143,161 km (0.115 R)
• M18: 29,654,936 km (0.088 R)
• M19: 32,413,071 km (0.111 R)
• M20: 34,991,840 km (0.099 R)
• M21: 37,463,346 km (0.037 R)
• M22: 45,711,574 km (0.082 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 520.8

Radius: 6.6

Gravity: 11.96 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.89 AU - 9.51 AU

Year: 13585 Days

Day: 23.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 72.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,662,780 km

• M1: 82,428 km (0.043 R)
• M2: 517,160 km (0.111 R)
• M3: 899,382 km (0.037 R)
• M4: 1,602,343 km (0.094 R)
• M5: 2,885,145 km (0.055 R)
• M6: 3,485,630 km (0.101 R)
• M7: 4,023,435 km (0.093 R)
• M8: 4,932,092 km (0.032 R)
• M9: 5,229,642 km (0.086 R)
• M10: 7,315,785 km (0.12 R)
• M11: 7,747,075 km (0.069 R)
• M12: 11,540,129 km (0.111 R)
• M13: 14,193,846 km (0.088 R)
• M14: 14,932,859 km (0.091 R)
• M15: 16,053,348 km (0.113 R)
• M16: 16,929,542 km (0.06 R)
• M17: 18,146,970 km (0.098 R)
• M18: 22,596,160 km (0.101 R)
• M19: 26,001,008 km (0.112 R)
• M20: 32,987,378 km (0.095 R)
• M21: 49,896,874 km (0.102 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 386 - 16,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit