🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.3

Radius: 10.8

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.85 AU - 0.95 AU

Year: 569 Days

Day: 7.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,631,673 km

• M1: 134,339 km (0.111 R)
• M2: 737,817 km (0.106 R)
• M3: 1,229,994 km (0.1 R)
• M4: 1,669,363 km (0.064 R)
• M5: 2,066,545 km (0.025 R)
• M6: 2,760,530 km (0.102 R)
• M7: 3,114,478 km (0.116 R)
• M8: 3,643,007 km (0.075 R)
• M9: 4,201,157 km (0.071 R)
• M10: 4,799,548 km (0.04 R)
• M11: 6,034,329 km (0.08 R)
• M12: 6,535,931 km (0.105 R)
• M13: 6,919,949 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.4

Radius: 14.9

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.9 AU - 0.94 AU

Year: 588 Days

Day: 12.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,631,673 km

• M1: 185,352 km (0.11 R)
• M2: 658,380 km (0.118 R)
• M3: 1,363,585 km (0.082 R)
• M4: 1,869,225 km (0.115 R)
• M5: 2,450,264 km (0.071 R)
• M6: 2,946,629 km (0.077 R)
• M7: 3,444,641 km (0.095 R)
• M8: 3,912,134 km (0.105 R)
• M9: 4,645,313 km (0.028 R)
• M10: 5,615,455 km (0.079 R)
• M11: 6,188,565 km (0.064 R)
• M12: 7,588,502 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.1

Radius: 15

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.92 AU - 0.96 AU

Year: 608 Days

Day: 12.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 50,631,673 km

• M1: 186,549 km (0.1 R)
• M2: 682,615 km (0.092 R)
• M3: 1,897,200 km (0.117 R)
• M4: 2,733,153 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.4

Radius: 12.3

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.04 AU - 1.26 AU

Year: 822 Days

Day: 10.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,631,673 km

• M1: 153,039 km (0.103 R)
• M2: 617,690 km (0.094 R)
• M3: 1,311,674 km (0.094 R)
• M4: 1,729,052 km (0.071 R)
• M5: 2,274,935 km (0.063 R)
• M6: 2,992,556 km (0.092 R)
• M7: 3,568,956 km (0.089 R)
• M8: 4,293,758 km (0.061 R)
• M9: 4,928,951 km (0.043 R)
• M10: 5,321,944 km (0.098 R)
• M11: 6,793,688 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.1

Radius: 10.2

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.73 AU - 5.59 AU

Year: 6708 Days

Day: 9.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,631,673 km

• M1: 126,859 km (0.095 R)
• M2: 523,742 km (0.03 R)
• M3: 975,677 km (0.103 R)
• M4: 1,979,629 km (0.112 R)
• M5: 2,738,838 km (0.079 R)
• M6: 3,133,926 km (0.096 R)
• M7: 3,521,983 km (0.047 R)
• M8: 3,893,733 km (0.092 R)
• M9: 5,140,632 km (0.089 R)
• M10: 5,967,908 km (0.079 R)
• M11: 7,132,976 km (0.116 R)
• M12: 7,540,630 km (0.11 R)
• M13: 10,748,607 km (0.095 R)
• M14: 11,788,611 km (0.116 R)
• M15: 13,333,209 km (0.114 R)
• M16: 14,769,648 km (0.042 R)
• M17: 16,497,952 km (0.079 R)
• M18: 18,912,911 km (0.085 R)
• M19: 19,623,650 km (0.1 R)
• M20: 21,022,690 km (0.11 R)
• M21: 22,251,636 km (0.101 R)
• M22: 24,432,923 km (0.085 R)
• M23: 25,446,747 km (0.106 R)
• M24: 26,312,769 km (0.032 R)
• M25: 26,841,748 km (0.103 R)
• M26: 36,408,831 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 932.5

Radius: 6.3

Gravity: 23.49 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.21 AU - 8.25 AU

Year: 14332 Days

Day: 20.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 50,631,673 km

• M1: 78,389 km (0.085 R)
• M2: 375,939 km (0.072 R)
• M3: 942,616 km (0.111 R)
• M4: 1,435,691 km (0.05 R)
• M5: 2,166,476 km (0.093 R)
• M6: 3,550,556 km (0.054 R)
• M7: 4,235,265 km (0.086 R)
• M8: 4,493,022 km (0.089 R)
• M9: 4,726,994 km (0.114 R)
• M10: 5,292,773 km (0.066 R)
• M11: 5,902,683 km (0.109 R)
• M12: 6,307,046 km (0.092 R)
• M13: 7,216,152 km (0.094 R)
• M14: 8,816,700 km (0.078 R)
• M15: 9,894,403 km (0.067 R)
• M16: 11,057,227 km (0.071 R)
• M17: 16,783,834 km (0.097 R)
• M18: 19,032,589 km (0.047 R)
• M19: 20,638,522 km (0.047 R)
• M20: 24,836,687 km (0.113 R)
• M21: 25,675,782 km (0.109 R)
• M22: 35,264,257 km (0.12 R)
• M23: 41,941,109 km (0.066 R)
• M24: 46,515,214 km (0.099 R)
• M25: 47,628,372 km (0.117 R)
• M26: 49,085,605 km (0.07 R)
• M27: 49,742,638 km (0.082 R)
• M28: 53,808,858 km (0.096 R)
• M29: 54,157,272 km (0.091 R)
• M30: 57,362,107 km (0.081 R)
• M31: 58,274,205 km (0.111 R)
• M32: 59,753,728 km (0.109 R)
• M33: 66,722,146 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 453.2

Radius: 6.3

Gravity: 11.42 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.15 AU - 9.31 AU

Year: 15745 Days

Day: 19.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,631,673 km

• M1: 78,389 km (0.12 R)
• M2: 305,180 km (0.096 R)
• M3: 858,692 km (0.081 R)
• M4: 1,105,229 km (0.12 R)
• M5: 1,330,823 km (0.069 R)
• M6: 1,587,233 km (0.098 R)
• M7: 2,540,321 km (0.041 R)
• M8: 3,249,715 km (0.105 R)
• M9: 4,692,736 km (0.061 R)
• M10: 6,678,797 km (0.062 R)
• M11: 13,272,772 km (0.094 R)
• M12: 15,796,039 km (0.084 R)
• M13: 16,753,615 km (0.055 R)
• M14: 19,274,638 km (0.103 R)
• M15: 20,026,817 km (0.097 R)
• M16: 25,548,773 km (0.117 R)
• M17: 29,525,085 km (0.103 R)
• M18: 31,202,077 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258.4

Radius: 7

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 7.31 AU - 10.47 AU

Year: 17676 Days

Day: 24 Hours

Environment

Temp: -227 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 50,631,673 km

• M1: 89,759 km (0.112 R)
• M2: 314,156 km (0.085 R)
• M3: 655,089 km (0.111 R)
• M4: 985,700 km (0.108 R)
• M5: 1,535,323 km (0.072 R)
• M6: 1,790,387 km (0.055 R)
• M7: 2,126,683 km (0.111 R)
• M8: 2,406,132 km (0.116 R)
• M9: 4,162,112 km (0.112 R)
• M10: 5,103,681 km (0.096 R)
• M11: 6,443,180 km (0.094 R)
• M12: 7,235,151 km (0.107 R)
• M13: 7,740,493 km (0.108 R)
• M14: 8,045,972 km (0.051 R)
• M15: 10,573,727 km (0.046 R)
• M16: 12,308,913 km (0.071 R)
• M17: 12,785,831 km (0.049 R)
• M18: 13,213,232 km (0.098 R)
• M19: 14,225,710 km (0.063 R)
• M20: 14,817,519 km (0.101 R)
• M21: 19,749,761 km (0.108 R)
• M22: 21,155,682 km (0.074 R)
• M23: 21,667,456 km (0.071 R)
• M24: 21,926,410 km (0.033 R)
• M25: 25,197,218 km (0.092 R)
• M26: 26,258,166 km (0.079 R)
• M27: 32,461,092 km (0.092 R)
• M28: 36,202,086 km (0.1 R)
• M29: 37,057,038 km (0.116 R)
• M30: 39,961,182 km (0.103 R)
• M31: 47,659,189 km (0.062 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 19,053 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit