🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.4

Radius: 9.9

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.51 AU - 0.69 AU

Year: 310 Days

Day: 9.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,274,633 km

• M1: 123,269 km (0.11 R)
• M2: 508,782 km (0.049 R)
• M3: 971,638 km (0.1 R)
• M4: 1,331,271 km (0.117 R)
• M5: 1,746,555 km (0.069 R)
• M6: 2,060,561 km (0.048 R)
• M7: 2,404,038 km (0.075 R)
• M8: 2,785,961 km (0.065 R)
• M9: 3,605,458 km (0.062 R)
• M10: 4,047,520 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.6

Radius: 11.9

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.71 AU - 0.87 AU

Year: 468 Days

Day: 9.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,274,633 km

• M1: 147,952 km (0.118 R)
• M2: 548,875 km (0.095 R)
• M3: 982,409 km (0.069 R)
• M4: 1,665,922 km (0.116 R)
• M5: 2,235,142 km (0.118 R)
• M6: 2,813,038 km (0.048 R)
• M7: 3,295,491 km (0.083 R)
• M8: 3,899,119 km (0.101 R)
• M9: 4,284,483 km (0.107 R)
• M10: 4,695,428 km (0.08 R)
• M11: 5,631,313 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.9

Radius: 11.9

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.84 AU - 0.94 AU

Year: 560 Days

Day: 6.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,274,633 km

• M1: 147,952 km (0.083 R)
• M2: 603,179 km (0.116 R)
• M3: 1,090,718 km (0.075 R)
• M4: 1,614,759 km (0.119 R)
• M5: 2,574,729 km (0.113 R)
• M6: 3,251,959 km (0.114 R)
• M7: 3,802,329 km (0.089 R)
• M8: 4,255,162 km (0.102 R)
• M9: 6,270,844 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.5

Radius: 8.5

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.79 AU - 1.23 AU

Year: 677 Days

Day: 13.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,274,633 km

• M1: 105,766 km (0.119 R)
• M2: 502,200 km (0.109 R)
• M3: 769,831 km (0.116 R)
• M4: 1,119,740 km (0.075 R)
• M5: 1,406,220 km (0.106 R)
• M6: 2,167,673 km (0.082 R)
• M7: 2,495,741 km (0.047 R)
• M8: 3,375,975 km (0.082 R)
• M9: 3,984,390 km (0.107 R)
• M10: 5,717,182 km (0.115 R)
• M11: 6,424,929 km (0.099 R)
• M12: 6,699,890 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679

Radius: 10.7

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.35 AU - 1.59 AU

Year: 1189 Days

Day: 12.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,274,633 km

• M1: 133,142 km (0.097 R)
• M2: 490,083 km (0.106 R)
• M3: 886,068 km (0.088 R)
• M4: 1,552,078 km (0.115 R)
• M5: 2,181,885 km (0.103 R)
• M6: 3,140,807 km (0.103 R)
• M7: 3,629,693 km (0.095 R)
• M8: 4,237,659 km (0.094 R)
• M9: 5,146,167 km (0.102 R)
• M10: 7,121,607 km (0.045 R)
• M11: 7,705,188 km (0.111 R)
• M12: 10,783,015 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.9

Radius: 10.7

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.8 AU - 2.24 AU

Year: 1915 Days

Day: 7.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,274,633 km

• M1: 133,142 km (0.084 R)
• M2: 536,757 km (0.059 R)
• M3: 902,674 km (0.117 R)
• M4: 1,336,657 km (0.055 R)
• M5: 1,749,397 km (0.092 R)
• M6: 2,102,598 km (0.047 R)
• M7: 2,517,134 km (0.061 R)
• M8: 3,016,192 km (0.112 R)
• M9: 3,580,625 km (0.111 R)
• M10: 4,214,172 km (0.072 R)
• M11: 4,985,199 km (0.093 R)
• M12: 5,681,727 km (0.116 R)
• M13: 6,570,488 km (0.116 R)
• M14: 7,985,086 km (0.075 R)
• M15: 9,229,291 km (0.098 R)
• M16: 11,256,941 km (0.076 R)
• M17: 11,596,378 km (0.113 R)
• M18: 13,063,933 km (0.1 R)
• M19: 13,607,871 km (0.059 R)
• M20: 14,474,192 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.2

Radius: 8.6

Gravity: 12.04 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.08 AU - 2.46 AU

Year: 2281 Days

Day: 7.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 31,274,633 km

• M1: 109,356 km (0.114 R)
• M2: 382,223 km (0.072 R)
• M3: 755,320 km (0.084 R)
• M4: 1,331,271 km (0.115 R)
• M5: 1,672,504 km (0.113 R)
• M6: 1,960,330 km (0.084 R)
• M7: 2,405,534 km (0.117 R)
• M8: 2,743,924 km (0.105 R)
• M9: 3,080,519 km (0.035 R)
• M10: 3,779,441 km (0.093 R)
• M11: 4,156,278 km (0.083 R)
• M12: 4,601,930 km (0.068 R)
• M13: 5,102,634 km (0.11 R)
• M14: 6,079,209 km (0.096 R)
• M15: 7,086,601 km (0.026 R)
• M16: 7,385,348 km (0.079 R)
• M17: 8,497,458 km (0.033 R)
• M18: 9,006,989 km (0.111 R)
• M19: 10,388,824 km (0.117 R)
• M20: 11,210,416 km (0.11 R)
• M21: 11,865,056 km (0.079 R)
• M22: 12,501,595 km (0.086 R)
• M23: 13,430,897 km (0.118 R)
• M24: 14,934,355 km (0.062 R)
• M25: 15,576,130 km (0.077 R)
• M26: 16,236,007 km (0.097 R)
• M27: 19,121,001 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674

Radius: 11.3

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.25 AU - 2.79 AU

Year: 2668 Days

Day: 11.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,274,633 km

• M1: 140,772 km (0.092 R)
• M2: 552,914 km (0.05 R)
• M3: 1,086,529 km (0.06 R)
• M4: 1,573,171 km (0.086 R)
• M5: 2,074,922 km (0.112 R)
• M6: 2,448,319 km (0.074 R)
• M7: 3,439,853 km (0.088 R)
• M8: 4,356,440 km (0.064 R)
• M9: 4,815,555 km (0.068 R)
• M10: 7,646,695 km (0.115 R)
• M11: 8,751,475 km (0.079 R)
• M12: 9,271,478 km (0.048 R)
• M13: 9,848,776 km (0.069 R)
• M14: 15,118,361 km (0.074 R)
• M15: 19,001,323 km (0.102 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.7

Radius: 10.5

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.09 AU - 4.65 AU

Year: 6092 Days

Day: 10.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,274,633 km

• M1: 131,347 km (0.051 R)
• M2: 1,825,992 km (0.032 R)
• M3: 2,729,712 km (0.076 R)
• M4: 4,662,966 km (0.095 R)
• M5: 7,027,210 km (0.115 R)
• M6: 9,880,191 km (0.082 R)
• M7: 10,228,754 km (0.101 R)
• M8: 13,112,403 km (0.092 R)
• M9: 14,238,426 km (0.091 R)
• M10: 16,377,227 km (0.109 R)
• M11: 22,012,279 km (0.102 R)
• M12: 23,832,736 km (0.103 R)
• M13: 25,343,525 km (0.113 R)
• M14: 26,917,145 km (0.089 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 12,372 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit