🌌 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: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.57 AU - 0.71 AU

Year: 336 Days

Day: 42.9 Hours

Environment

Temp: -128 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.2

Radius: 15

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.61 AU - 0.79 AU

Year: 384 Days

Day: 11.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,402,944 km

• M1: 186,549 km (0.08 R)
• M2: 740,809 km (0.098 R)
• M3: 1,295,069 km (0.12 R)
• M4: 1,858,754 km (0.102 R)
• M5: 2,351,679 km (0.117 R)
• M6: 3,334,537 km (0.113 R)
• M7: 4,154,782 km (0.107 R)
• M8: 4,694,680 km (0.107 R)
• M9: 5,899,392 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.7

Radius: 14.8

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.79 AU - 2.73 AU

Year: 2229 Days

Day: 14.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,402,944 km

• M1: 184,604 km (0.09 R)
• M2: 732,880 km (0.113 R)
• M3: 1,310,029 km (0.097 R)
• M4: 1,787,096 km (0.052 R)
• M5: 3,215,606 km (0.096 R)
• M6: 5,505,950 km (0.101 R)
• M7: 6,242,270 km (0.064 R)
• M8: 7,095,726 km (0.077 R)
• M9: 8,491,026 km (0.112 R)
• M10: 11,165,387 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.9

Radius: 8.1

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.18 AU - 2.66 AU

Year: 2470 Days

Day: 8.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,402,944 km

• M1: 100,829 km (0.104 R)
• M2: 449,841 km (0.089 R)
• M3: 726,148 km (0.06 R)
• M4: 1,680,134 km (0.062 R)
• M5: 2,030,342 km (0.114 R)
• M6: 2,708,918 km (0.109 R)
• M7: 3,070,795 km (0.065 R)
• M8: 3,580,625 km (0.103 R)
• M9: 3,838,532 km (0.087 R)
• M10: 4,090,455 km (0.114 R)
• M11: 4,528,477 km (0.069 R)
• M12: 4,934,486 km (0.115 R)
• M13: 6,177,195 km (0.106 R)
• M14: 6,754,344 km (0.073 R)
• M15: 7,929,136 km (0.115 R)
• M16: 8,825,826 km (0.106 R)
• M17: 9,590,570 km (0.082 R)
• M18: 11,845,608 km (0.082 R)
• M19: 12,499,351 km (0.087 R)
• M20: 14,475,240 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.8

Radius: 11.2

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.67 AU - 2.83 AU

Year: 2992 Days

Day: 8.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,402,944 km

• M1: 143,764 km (0.105 R)
• M2: 813,812 km (0.095 R)
• M3: 1,205,759 km (0.104 R)
• M4: 1,771,837 km (0.103 R)
• M5: 2,593,578 km (0.073 R)
• M6: 3,030,404 km (0.116 R)
• M7: 3,873,687 km (0.079 R)
• M8: 4,411,940 km (0.09 R)
• M9: 4,961,413 km (0.095 R)
• M10: 5,494,580 km (0.038 R)
• M11: 6,513,940 km (0.112 R)
• M12: 7,154,069 km (0.115 R)
• M13: 8,152,336 km (0.058 R)
• M14: 8,671,141 km (0.081 R)
• M15: 10,392,714 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79

Radius: 10

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.09 AU - 3.11 AU

Year: 3581 Days

Day: 10.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,402,944 km

• M1: 124,316 km (0.091 R)
• M2: 454,628 km (0.076 R)
• M3: 914,941 km (0.025 R)
• M4: 1,877,004 km (0.086 R)
• M5: 2,201,632 km (0.09 R)
• M6: 3,076,779 km (0.099 R)
• M7: 4,523,690 km (0.106 R)
• M8: 5,563,694 km (0.111 R)
• M9: 5,995,284 km (0.058 R)
• M10: 8,983,203 km (0.051 R)
• M11: 11,282,671 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 424.1

Radius: 8

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.83 AU - 7.87 AU

Year: 10497 Days

Day: 24 Hours

Environment

Temp: -232 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,402,944 km

• M1: 100,530 km (0.06 R)
• M2: 696,079 km (0.077 R)
• M3: 1,668,016 km (0.115 R)
• M4: 3,022,176 km (0.077 R)
• M5: 3,517,046 km (0.093 R)
• M6: 3,834,193 km (0.104 R)
• M7: 4,526,084 km (0.097 R)
• M8: 5,298,607 km (0.108 R)
• M9: 5,782,706 km (0.031 R)
• M10: 7,335,083 km (0.111 R)
• M11: 7,732,564 km (0.048 R)
• M12: 8,398,275 km (0.077 R)
• M13: 10,377,006 km (0.099 R)
• M14: 10,878,308 km (0.097 R)
• M15: 12,147,198 km (0.042 R)
• M16: 13,161,621 km (0.082 R)
• M17: 15,358,166 km (0.117 R)
• M18: 16,610,749 km (0.099 R)
• M19: 22,720,925 km (0.116 R)
• M20: 25,770,028 km (0.109 R)
• M21: 26,043,493 km (0.109 R)
• M22: 26,968,756 km (0.102 R)
• M23: 37,111,641 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 895.1

Radius: 4.2

Gravity: 50.74 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.01 AU - 9.59 AU

Year: 14291 Days

Day: 20.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 47,402,944 km

• M1: 53,257 km (0.049 R)
• M2: 215,720 km (0.093 R)
• M3: 500,704 km (0.072 R)
• M4: 632,949 km (0.052 R)
• M5: 839,693 km (0.094 R)
• M6: 970,591 km (0.052 R)
• M7: 1,882,091 km (0.038 R)
• M8: 2,168,421 km (0.048 R)
• M9: 2,949,621 km (0.067 R)
• M10: 3,309,254 km (0.086 R)
• M11: 3,472,167 km (0.117 R)
• M12: 4,177,670 km (0.066 R)
• M13: 4,800,446 km (0.071 R)
• M14: 5,297,410 km (0.049 R)
• M15: 5,482,912 km (0.055 R)
• M16: 6,645,885 km (0.046 R)
• M17: 8,109,701 km (0.101 R)
• M18: 11,781,580 km (0.033 R)
• M19: 16,193,670 km (0.106 R)
• M20: 20,574,494 km (0.076 R)
• M21: 27,082,002 km (0.106 R)
• M22: 27,301,462 km (0.091 R)
• M23: 31,215,989 km (0.102 R)
• M24: 35,227,007 km (0.12 R)
• M25: 37,764,038 km (0.116 R)
• M26: 39,147,070 km (0.099 R)
• M27: 39,427,566 km (0.111 R)
• M28: 43,949,910 km (0.115 R)
• M29: 53,316,232 km (0.085 R)
• M30: 55,407,012 km (0.074 R)
• M31: 58,644,759 km (0.108 R)
• M32: 60,309,933 km (0.083 R)
• M33: 65,100,356 km (0.109 R)
• M34: 66,286,517 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.6

Radius: 4.8

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.79 AU - 10.59 AU

Year: 16805 Days

Day: 22.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,402,944 km

• M1: 61,485 km (0.101 R)
• M2: 322,234 km (0.113 R)
• M3: 591,809 km (0.104 R)
• M4: 755,918 km (0.107 R)
• M5: 1,376,749 km (0.092 R)
• M6: 2,419,147 km (0.063 R)
• M7: 2,740,483 km (0.079 R)
• M8: 3,850,200 km (0.044 R)
• M9: 5,698,033 km (0.075 R)
• M10: 7,228,420 km (0.111 R)
• M11: 9,684,517 km (0.104 R)
• M12: 13,061,390 km (0.114 R)
• M13: 21,757,814 km (0.1 R)
• M14: 27,920,199 km (0.078 R)
• M15: 28,827,659 km (0.106 R)
• M16: 29,340,032 km (0.118 R)
• M17: 29,858,688 km (0.071 R)
• M18: 33,660,718 km (0.105 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 18,110 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit