🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.53 AU - 0.59 AU

Year: 271 Days

Day: 29.1 Hours

Environment

Temp: -115 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,140,106 km

• M1: 518,805 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.2

Radius: 13.3

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.63 AU - 0.75 AU

Year: 370 Days

Day: 11 Hours

Environment

Temp: -129 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,140,106 km

• M1: 166,054 km (0.088 R)
• M2: 583,432 km (0.096 R)
• M3: 1,091,616 km (0.097 R)
• M4: 1,589,328 km (0.113 R)
• M5: 2,599,263 km (0.11 R)
• M6: 3,115,675 km (0.09 R)
• M7: 3,556,390 km (0.113 R)
• M8: 4,182,756 km (0.116 R)
• M9: 4,678,673 km (0.109 R)
• M10: 5,353,958 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.7

Radius: 10

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.61 AU - 1.01 AU

Year: 471 Days

Day: 8.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,140,106 km

• M1: 124,465 km (0.103 R)
• M2: 499,058 km (0.083 R)
• M3: 813,812 km (0.081 R)
• M4: 1,385,875 km (0.07 R)
• M5: 2,130,573 km (0.066 R)
• M6: 2,814,684 km (0.101 R)
• M7: 3,168,184 km (0.065 R)
• M8: 4,936,879 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.5

Radius: 15

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.38 AU - 1.62 AU

Year: 1186 Days

Day: 6.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,140,106 km

• M1: 186,549 km (0.091 R)
• M2: 680,521 km (0.118 R)
• M3: 1,196,484 km (0.113 R)
• M4: 2,373,520 km (0.046 R)
• M5: 3,264,974 km (0.025 R)
• M6: 4,352,550 km (0.096 R)
• M7: 5,391,358 km (0.087 R)
• M8: 6,304,054 km (0.088 R)
• M9: 7,162,746 km (0.079 R)
• M10: 8,070,356 km (0.096 R)
• M11: 8,552,361 km (0.068 R)
• M12: 9,481,064 km (0.038 R)
• M13: 10,845,696 km (0.099 R)
• M14: 12,006,875 km (0.089 R)

Asteroid Belt

Center: 2.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.6

Radius: 14.4

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.17 AU - 4.95 AU

Year: 5282 Days

Day: 5.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,140,106 km

• M1: 179,069 km (0.074 R)
• M2: 793,018 km (0.111 R)
• M3: 1,969,007 km (0.091 R)
• M4: 2,625,293 km (0.077 R)
• M5: 3,543,525 km (0.114 R)
• M6: 4,045,426 km (0.039 R)
• M7: 5,116,098 km (0.06 R)
• M8: 5,816,664 km (0.114 R)
• M9: 7,245,324 km (0.118 R)
• M10: 7,850,747 km (0.07 R)
• M11: 8,344,868 km (0.074 R)
• M12: 9,831,871 km (0.108 R)
• M13: 12,314,448 km (0.105 R)
• M14: 13,726,502 km (0.099 R)
• M15: 14,921,191 km (0.115 R)
• M16: 15,516,590 km (0.112 R)
• M17: 16,015,499 km (0.071 R)
• M18: 17,280,200 km (0.074 R)
• M19: 18,610,574 km (0.066 R)
• M20: 19,492,154 km (0.113 R)
• M21: 21,543,290 km (0.102 R)
• M22: 25,684,159 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.5

Radius: 12.4

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.24 AU - 5.38 AU

Year: 5777 Days

Day: 8.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,140,106 km

• M1: 154,535 km (0.036 R)
• M2: 570,117 km (0.074 R)
• M3: 999,015 km (0.115 R)
• M4: 1,725,312 km (0.027 R)
• M5: 2,959,345 km (0.036 R)
• M6: 4,226,738 km (0.052 R)
• M7: 6,400,694 km (0.096 R)
• M8: 7,144,346 km (0.108 R)
• M9: 8,126,605 km (0.085 R)
• M10: 9,117,242 km (0.039 R)
• M11: 10,532,288 km (0.102 R)
• M12: 11,110,335 km (0.085 R)
• M13: 11,850,844 km (0.106 R)
• M14: 15,146,036 km (0.078 R)
• M15: 16,114,832 km (0.112 R)
• M16: 16,823,178 km (0.088 R)
• M17: 17,675,736 km (0.085 R)
• M18: 19,866,148 km (0.103 R)
• M19: 22,962,226 km (0.114 R)
• M20: 25,327,817 km (0.105 R)
• M21: 26,366,625 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.9

Radius: 13.1

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 4.29 AU - 6.23 AU

Year: 7789 Days

Day: 5.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,140,106 km

• M1: 162,912 km (0.028 R)
• M2: 672,742 km (0.044 R)
• M3: 1,395,000 km (0.081 R)
• M4: 2,141,194 km (0.059 R)
• M5: 2,951,267 km (0.082 R)
• M6: 3,497,299 km (0.108 R)
• M7: 5,426,364 km (0.086 R)
• M8: 5,978,380 km (0.074 R)
• M9: 6,821,214 km (0.104 R)
• M10: 7,348,696 km (0.106 R)
• M11: 7,903,256 km (0.071 R)
• M12: 8,316,295 km (0.087 R)
• M13: 8,831,211 km (0.114 R)
• M14: 9,736,577 km (0.087 R)
• M15: 11,892,133 km (0.039 R)
• M16: 12,602,125 km (0.082 R)
• M17: 13,514,821 km (0.06 R)
• M18: 15,091,284 km (0.048 R)
• M19: 15,858,870 km (0.111 R)
• M20: 16,384,856 km (0.076 R)
• M21: 17,058,795 km (0.082 R)
• M22: 22,800,511 km (0.095 R)
• M23: 26,195,186 km (0.101 R)
• M24: 30,920,683 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.3

Radius: 12.5

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.53 AU - 6.53 AU

Year: 8397 Days

Day: 9.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,140,106 km

• M1: 155,432 km (0.036 R)
• M2: 743,501 km (0.09 R)
• M3: 1,273,078 km (0.118 R)
• M4: 2,549,447 km (0.108 R)
• M5: 3,529,014 km (0.082 R)
• M6: 5,918,241 km (0.104 R)
• M7: 7,011,503 km (0.059 R)
• M8: 9,276,414 km (0.048 R)
• M9: 10,798,872 km (0.08 R)
• M10: 13,213,681 km (0.102 R)
• M11: 17,376,840 km (0.078 R)
• M12: 19,754,848 km (0.086 R)
• M13: 20,748,626 km (0.112 R)
• M14: 23,168,970 km (0.037 R)
• M15: 28,853,989 km (0.05 R)
• M16: 29,538,100 km (0.045 R)
• M17: 37,792,910 km (0.09 R)
• M18: 39,085,286 km (0.067 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: 371 - 18,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit