🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.52 AU - 0.78 AU

Year: 344 Days

Day: 45 Hours

Environment

Temp: -143 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,598,168 km

• M1: 29,620 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.7

Radius: 13.5

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.57 AU - 0.81 AU

Year: 376 Days

Day: 10.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,598,168 km

• M1: 167,849 km (0.104 R)
• M2: 646,712 km (0.08 R)
• M3: 1,102,088 km (0.096 R)
• M4: 1,537,567 km (0.066 R)
• M5: 2,000,423 km (0.107 R)
• M6: 2,587,744 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.3

Radius: 13.8

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.04 AU - 1.72 AU

Year: 1063 Days

Day: 9.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,598,168 km

• M1: 171,589 km (0.089 R)
• M2: 673,789 km (0.067 R)
• M3: 1,418,936 km (0.071 R)
• M4: 1,961,378 km (0.108 R)
• M5: 2,793,591 km (0.107 R)
• M6: 3,258,990 km (0.081 R)
• M7: 4,078,786 km (0.096 R)
• M8: 4,563,333 km (0.049 R)
• M9: 5,325,235 km (0.043 R)
• M10: 7,955,316 km (0.09 R)
• M11: 9,034,066 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.1

Radius: 12

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.54 AU - 2.26 AU

Year: 1718 Days

Day: 7.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,598,168 km

• M1: 149,299 km (0.119 R)
• M2: 631,602 km (0.103 R)
• M3: 1,031,178 km (0.083 R)
• M4: 2,312,035 km (0.103 R)
• M5: 3,012,004 km (0.077 R)
• M6: 3,426,988 km (0.118 R)
• M7: 6,438,692 km (0.071 R)
• M8: 6,896,013 km (0.087 R)
• M9: 8,807,575 km (0.093 R)
• M10: 10,081,101 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.9

Radius: 12

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.79 AU - 2.25 AU

Year: 1883 Days

Day: 13.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,598,168 km

• M1: 149,299 km (0.108 R)
• M2: 560,094 km (0.106 R)
• M3: 994,078 km (0.094 R)
• M4: 2,924,938 km (0.118 R)
• M5: 3,372,684 km (0.112 R)
• M6: 4,050,662 km (0.045 R)
• M7: 4,769,031 km (0.073 R)
• M8: 5,167,709 km (0.035 R)
• M9: 5,844,639 km (0.077 R)
• M10: 6,866,093 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.6

Radius: 11.8

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.95 AU - 2.15 AU

Year: 1925 Days

Day: 9.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,598,168 km

• M1: 149,448 km (0.099 R)
• M2: 884,423 km (0.097 R)
• M3: 1,339,350 km (0.049 R)
• M4: 2,054,278 km (0.078 R)
• M5: 2,492,899 km (0.09 R)
• M6: 3,596,482 km (0.112 R)
• M7: 6,173,156 km (0.083 R)
• M8: 10,640,149 km (0.101 R)
• M9: 11,008,309 km (0.119 R)
• M10: 12,485,737 km (0.066 R)
• M11: 13,484,602 km (0.037 R)
• M12: 15,453,161 km (0.111 R)
• M13: 16,117,974 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.9

Radius: 14.5

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.26 AU - 2.32 AU

Year: 2273 Days

Day: 12.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,598,168 km

• M1: 181,911 km (0.082 R)
• M2: 662,868 km (0.116 R)
• M3: 1,137,393 km (0.116 R)
• M4: 1,883,886 km (0.052 R)
• M5: 3,033,994 km (0.109 R)
• M6: 3,891,789 km (0.108 R)
• M7: 4,448,592 km (0.083 R)
• M8: 5,014,670 km (0.112 R)
• M9: 5,942,027 km (0.069 R)
• M10: 6,525,310 km (0.076 R)
• M11: 7,063,563 km (0.092 R)
• M12: 7,544,221 km (0.115 R)
• M13: 8,540,393 km (0.118 R)
• M14: 9,759,466 km (0.046 R)
• M15: 10,429,216 km (0.038 R)
• M16: 11,626,597 km (0.103 R)
• M17: 12,624,265 km (0.104 R)
• M18: 14,383,087 km (0.107 R)
• M19: 15,065,852 km (0.059 R)
• M20: 16,057,835 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.1

Radius: 8

Gravity: 8.33 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7.2 AU - 8.74 AU

Year: 14760 Days

Day: 15.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 71,598,168 km

• M1: 115,190 km (0.109 R)
• M2: 410,497 km (0.112 R)
• M3: 690,693 km (0.119 R)
• M4: 991,086 km (0.028 R)
• M5: 1,434,344 km (0.03 R)
• M6: 1,782,907 km (0.088 R)
• M7: 2,058,168 km (0.106 R)
• M8: 2,566,800 km (0.091 R)
• M9: 3,751,167 km (0.057 R)
• M10: 4,060,834 km (0.068 R)
• M11: 4,541,642 km (0.115 R)
• M12: 5,093,658 km (0.11 R)
• M13: 5,545,294 km (0.085 R)
• M14: 8,168,642 km (0.063 R)
• M15: 9,133,997 km (0.104 R)
• M16: 10,833,878 km (0.075 R)
• M17: 12,057,888 km (0.094 R)
• M18: 12,923,461 km (0.06 R)
• M19: 14,366,632 km (0.065 R)
• M20: 17,030,820 km (0.101 R)
• M21: 17,647,462 km (0.075 R)
• M22: 18,519,319 km (0.096 R)
• M23: 23,787,557 km (0.12 R)
• M24: 26,046,784 km (0.096 R)
• M25: 28,018,036 km (0.079 R)
• M26: 28,660,708 km (0.054 R)
• M27: 28,985,635 km (0.039 R)
• M28: 29,864,223 km (0.108 R)
• M29: 30,647,517 km (0.067 R)
• M30: 31,444,276 km (0.082 R)
• M31: 32,254,946 km (0.096 R)
• M32: 32,842,417 km (0.079 R)
• M33: 35,016,523 km (0.066 R)
• M34: 37,801,886 km (0.118 R)
• M35: 39,917,948 km (0.063 R)
• M36: 41,694,572 km (0.118 R)
• M37: 45,404,599 km (0.068 R)
• M38: 49,484,283 km (0.057 R)
• M39: 54,462,002 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.5

Radius: 7.1

Gravity: 16.32 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.49 AU - 10.79 AU

Year: 16660 Days

Day: 21.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,598,168 km

• M1: 90,058 km (0.05 R)
• M2: 602,431 km (0.057 R)
• M3: 892,052 km (0.072 R)
• M4: 2,409,573 km (0.117 R)
• M5: 3,452,569 km (0.11 R)
• M6: 4,699,318 km (0.116 R)
• M7: 4,980,861 km (0.12 R)
• M8: 5,348,573 km (0.087 R)
• M9: 7,003,424 km (0.098 R)
• M10: 10,977,342 km (0.103 R)
• M11: 11,985,781 km (0.109 R)
• M12: 12,781,642 km (0.114 R)
• M13: 14,774,884 km (0.107 R)
• M14: 23,376,313 km (0.107 R)
• M15: 29,538,249 km (0.093 R)
• M16: 31,479,431 km (0.092 R)
• M17: 32,228,767 km (0.119 R)
• M18: 41,273,005 km (0.118 R)
• M19: 44,470,959 km (0.077 R)
• M20: 45,256,049 km (0.084 R)
• M21: 46,370,553 km (0.111 R)
• M22: 48,654,314 km (0.067 R)
• M23: 52,392,914 km (0.085 R)
• M24: 61,981,689 km (0.103 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: 348 - 11,176 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit