🌌 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: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.47 AU - 0.65 AU

Year: 275 Days

Day: 46.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,293,295 km

• M1: 152,590 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.53 AU - 0.68 AU

Year: 305 Days

Day: 32.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.1

Radius: 10.9

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.74 AU - 1.1 AU

Year: 579 Days

Day: 11 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 68,293,295 km

• M1: 135,536 km (0.108 R)
• M2: 508,334 km (0.11 R)
• M3: 933,341 km (0.101 R)
• M4: 1,471,744 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.7

Radius: 13.6

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.03 AU - 1.41 AU

Year: 884 Days

Day: 8.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,293,295 km

• M1: 169,195 km (0.048 R)
• M2: 612,454 km (0.045 R)
• M3: 1,564,195 km (0.114 R)
• M4: 2,093,473 km (0.103 R)
• M5: 2,525,212 km (0.111 R)
• M6: 3,051,497 km (0.115 R)
• M7: 4,520,997 km (0.102 R)
• M8: 5,371,012 km (0.082 R)
• M9: 6,062,454 km (0.041 R)
• M10: 6,614,619 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.7

Radius: 8.7

Gravity: 13.19 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.15 AU - 1.37 AU

Year: 928 Days

Day: 11.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,293,295 km

• M1: 108,458 km (0.104 R)
• M2: 409,001 km (0.071 R)
• M3: 699,220 km (0.108 R)
• M4: 1,390,213 km (0.054 R)
• M5: 1,953,599 km (0.104 R)
• M6: 2,362,300 km (0.084 R)
• M7: 2,711,910 km (0.116 R)
• M8: 3,165,641 km (0.06 R)
• M9: 3,940,707 km (0.111 R)
• M10: 4,470,433 km (0.075 R)
• M11: 5,588,378 km (0.047 R)
• M12: 6,484,320 km (0.115 R)
• M13: 6,834,977 km (0.079 R)
• M14: 7,297,384 km (0.118 R)
• M15: 8,503,442 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.4

Radius: 10.2

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.74 AU - 1.92 AU

Year: 1624 Days

Day: 8.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,293,295 km

• M1: 126,859 km (0.082 R)
• M2: 509,830 km (0.103 R)
• M3: 874,848 km (0.116 R)
• M4: 1,215,782 km (0.101 R)
• M5: 1,695,692 km (0.069 R)
• M6: 2,030,791 km (0.054 R)
• M7: 2,499,780 km (0.116 R)
• M8: 3,114,927 km (0.096 R)
• M9: 3,810,707 km (0.07 R)
• M10: 4,223,597 km (0.115 R)
• M11: 5,805,445 km (0.089 R)
• M12: 6,781,122 km (0.105 R)
• M13: 7,777,743 km (0.112 R)
• M14: 8,504,489 km (0.084 R)
• M15: 9,275,966 km (0.05 R)
• M16: 9,760,812 km (0.113 R)
• M17: 10,399,146 km (0.05 R)
• M18: 10,746,064 km (0.115 R)
• M19: 11,100,910 km (0.118 R)
• M20: 13,724,707 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.8

Radius: 8.4

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.29 AU - 3.49 AU

Year: 3223 Days

Day: 10.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,293,295 km

• M1: 104,419 km (0.058 R)
• M2: 475,123 km (0.11 R)
• M3: 785,239 km (0.085 R)
• M4: 1,506,301 km (0.1 R)
• M5: 1,799,214 km (0.04 R)
• M6: 2,191,609 km (0.076 R)
• M7: 2,488,710 km (0.103 R)
• M8: 2,754,396 km (0.116 R)
• M9: 3,101,613 km (0.046 R)
• M10: 3,546,367 km (0.065 R)
• M11: 3,847,956 km (0.074 R)
• M12: 4,625,566 km (0.094 R)
• M13: 4,964,405 km (0.071 R)
• M14: 5,251,932 km (0.091 R)
• M15: 7,024,218 km (0.075 R)
• M16: 7,617,075 km (0.084 R)
• M17: 8,030,563 km (0.084 R)
• M18: 8,427,746 km (0.087 R)
• M19: 9,461,617 km (0.12 R)
• M20: 9,732,837 km (0.095 R)
• M21: 11,055,432 km (0.086 R)
• M22: 13,576,755 km (0.117 R)
• M23: 14,902,491 km (0.097 R)
• M24: 15,643,749 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.8

Radius: 3.8

Gravity: 56.36 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.53 AU - 6.87 AU

Year: 11377 Days

Day: 16.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 68,293,295 km

• M1: 47,273 km (0.054 R)
• M2: 230,082 km (0.076 R)
• M3: 364,271 km (0.115 R)
• M4: 676,930 km (0.083 R)
• M5: 942,467 km (0.098 R)
• M6: 1,758,673 km (0.107 R)
• M7: 2,070,135 km (0.057 R)
• M8: 3,585,113 km (0.094 R)
• M9: 4,142,664 km (0.1 R)
• M10: 4,503,793 km (0.029 R)
• M11: 4,628,857 km (0.079 R)
• M12: 5,288,584 km (0.049 R)
• M13: 5,533,775 km (0.115 R)
• M14: 5,749,794 km (0.105 R)
• M15: 8,137,975 km (0.111 R)
• M16: 8,370,450 km (0.068 R)
• M17: 10,338,260 km (0.12 R)
• M18: 12,410,041 km (0.119 R)
• M19: 16,672,832 km (0.084 R)
• M20: 17,351,857 km (0.081 R)
• M21: 20,422,802 km (0.117 R)
• M22: 22,812,478 km (0.066 R)
• M23: 24,698,160 km (0.1 R)
• M24: 27,927,230 km (0.096 R)
• M25: 29,099,030 km (0.069 R)
• M26: 29,315,648 km (0.105 R)
• M27: 31,199,683 km (0.032 R)
• M28: 33,517,852 km (0.114 R)
• M29: 34,718,823 km (0.054 R)
• M30: 35,700,036 km (0.031 R)
• M31: 35,824,052 km (0.078 R)
• M32: 37,079,179 km (0.105 R)
• M33: 42,116,438 km (0.101 R)
• M34: 42,532,619 km (0.063 R)
• M35: 45,376,625 km (0.046 R)
• M36: 54,336,191 km (0.065 R)
• M37: 55,325,332 km (0.047 R)

Asteroid Belt

Center: 8.29 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 478.8

Radius: 5.3

Gravity: 17.05 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 9.16 AU - 10.58 AU

Year: 20342 Days

Day: 22.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,293,295 km

• M1: 65,973 km (0.094 R)
• M2: 548,875 km (0.105 R)
• M3: 715,975 km (0.09 R)
• M4: 1,144,873 km (0.079 R)
• M5: 1,747,154 km (0.058 R)
• M6: 3,780,189 km (0.085 R)
• M7: 10,690,413 km (0.077 R)
• M8: 12,306,370 km (0.101 R)
• M9: 12,901,769 km (0.085 R)
• M10: 14,729,406 km (0.088 R)
• M11: 15,552,195 km (0.074 R)
• M12: 16,722,948 km (0.077 R)
• M13: 17,784,195 km (0.075 R)
• M14: 19,326,549 km (0.051 R)
• M15: 25,214,721 km (0.117 R)
• M16: 32,194,958 km (0.093 R)
• M17: 32,568,055 km (0.115 R)
• M18: 34,998,272 km (0.087 R)
• M19: 48,326,395 km (0.093 R)
• M20: 54,591,853 km (0.091 R)
• M21: 57,097,019 km (0.076 R)
• M22: 66,467,680 km (0.057 R)
• M23: 67,275,060 km (0.08 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 427 - 14,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit