🌌 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: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.61 AU - 0.67 AU

Year: 331 Days

Day: 25.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 1.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,212,956 km

• M1: 808,277 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.57 AU - 0.75 AU

Year: 346 Days

Day: 36.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.8

Radius: 13

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.62 AU - 0.92 AU

Year: 436 Days

Day: 13.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 90,212,956 km

• M1: 161,865 km (0.039 R)
• M2: 576,999 km (0.108 R)
• M3: 1,057,657 km (0.115 R)
• M4: 1,762,263 km (0.095 R)
• M5: 2,299,768 km (0.1 R)
• M6: 2,714,603 km (0.093 R)
• M7: 3,223,834 km (0.1 R)
• M8: 3,896,426 km (0.074 R)
• M9: 5,117,444 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.7

Radius: 12.1

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.76 AU - 1.26 AU

Year: 655 Days

Day: 14 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,212,956 km

• M1: 150,495 km (0.106 R)
• M2: 676,332 km (0.109 R)
• M3: 1,240,914 km (0.085 R)
• M4: 1,629,420 km (0.113 R)
• M5: 2,072,379 km (0.115 R)
• M6: 2,871,980 km (0.104 R)
• M7: 4,046,174 km (0.103 R)
• M8: 5,115,350 km (0.084 R)
• M9: 5,630,415 km (0.09 R)
• M10: 6,960,939 km (0.074 R)
• M11: 7,998,250 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.6

Radius: 9.8

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.21 AU - 3.05 AU

Year: 2754 Days

Day: 6.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 90,212,956 km

• M1: 160,818 km (0.108 R)
• M2: 555,158 km (0.101 R)
• M3: 899,233 km (0.088 R)
• M4: 1,225,506 km (0.11 R)
• M5: 1,579,155 km (0.039 R)
• M6: 2,301,114 km (0.105 R)
• M7: 2,768,757 km (0.069 R)
• M8: 3,194,513 km (0.117 R)
• M9: 3,974,965 km (0.092 R)
• M10: 4,410,444 km (0.117 R)
• M11: 5,377,146 km (0.088 R)
• M12: 6,878,360 km (0.092 R)
• M13: 9,196,080 km (0.115 R)
• M14: 9,700,674 km (0.074 R)
• M15: 10,376,557 km (0.108 R)
• M16: 11,083,557 km (0.111 R)
• M17: 13,216,224 km (0.106 R)
• M18: 14,862,997 km (0.052 R)
• M19: 16,484,489 km (0.115 R)
• M20: 16,961,107 km (0.072 R)
• M21: 19,017,480 km (0.106 R)
• M22: 20,075,735 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.4

Radius: 12.5

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.18 AU - 3.28 AU

Year: 2912 Days

Day: 12.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,212,956 km

• M1: 155,432 km (0.09 R)
• M2: 581,786 km (0.091 R)
• M3: 1,162,974 km (0.106 R)
• M4: 1,567,187 km (0.117 R)
• M5: 2,313,082 km (0.118 R)
• M6: 2,916,859 km (0.099 R)
• M7: 3,682,800 km (0.054 R)
• M8: 4,578,742 km (0.028 R)
• M9: 6,273,536 km (0.074 R)
• M10: 7,106,796 km (0.111 R)
• M11: 8,528,275 km (0.088 R)
• M12: 9,627,072 km (0.068 R)
• M13: 10,612,922 km (0.094 R)
• M14: 11,193,810 km (0.1 R)
• M15: 12,555,600 km (0.117 R)
• M16: 14,322,351 km (0.094 R)
• M17: 14,776,081 km (0.096 R)
• M18: 15,343,655 km (0.098 R)
• M19: 19,424,984 km (0.096 R)
• M20: 22,179,979 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.6

Radius: 12

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.87 AU - 3.89 AU

Year: 4012 Days

Day: 13.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,212,956 km

• M1: 171,738 km (0.102 R)
• M2: 641,476 km (0.103 R)
• M3: 1,639,593 km (0.086 R)
• M4: 2,544,211 km (0.094 R)
• M5: 3,756,253 km (0.053 R)
• M6: 5,382,083 km (0.053 R)
• M7: 6,113,317 km (0.048 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.9

Radius: 7.7

Gravity: 14.92 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 6.64 AU - 10.16 AU

Year: 15719 Days

Day: 17.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 90,212,956 km

• M1: 95,892 km (0.098 R)
• M2: 423,960 km (0.1 R)
• M3: 676,631 km (0.098 R)
• M4: 1,452,446 km (0.075 R)
• M5: 1,779,317 km (0.096 R)
• M6: 2,698,297 km (0.076 R)
• M7: 3,608,151 km (0.084 R)
• M8: 4,777,707 km (0.078 R)
• M9: 5,582,993 km (0.092 R)
• M10: 6,348,485 km (0.119 R)
• M11: 6,911,422 km (0.032 R)
• M12: 7,227,971 km (0.032 R)
• M13: 8,958,818 km (0.087 R)
• M14: 9,722,665 km (0.081 R)
• M15: 12,341,076 km (0.091 R)
• M16: 13,148,157 km (0.048 R)
• M17: 13,990,094 km (0.071 R)
• M18: 15,858,571 km (0.062 R)
• M19: 16,251,265 km (0.112 R)
• M20: 17,719,120 km (0.07 R)
• M21: 23,552,539 km (0.111 R)
• M22: 28,081,016 km (0.112 R)
• M23: 35,375,857 km (0.054 R)
• M24: 36,046,505 km (0.062 R)
• M25: 36,725,679 km (0.099 R)
• M26: 37,137,223 km (0.117 R)
• M27: 37,413,380 km (0.113 R)
• M28: 38,109,609 km (0.084 R)
• M29: 47,962,573 km (0.099 R)
• M30: 51,819,206 km (0.106 R)
• M31: 54,799,196 km (0.068 R)
• M32: 59,574,659 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 136.7

Radius: 3.2

Gravity: 13.35 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 9.78 AU - 10.94 AU

Year: 21531 Days

Day: 17.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 90,212,956 km

• M1: 39,943 km (0.054 R)
• M2: 273,166 km (0.092 R)
• M3: 435,928 km (0.09 R)
• M4: 668,852 km (0.107 R)
• M5: 978,819 km (0.097 R)
• M6: 1,457,083 km (0.106 R)
• M7: 1,597,705 km (0.113 R)
• M8: 2,641,001 km (0.056 R)
• M9: 3,116,872 km (0.094 R)
• M10: 3,907,496 km (0.057 R)
• M11: 4,235,714 km (0.12 R)
• M12: 4,915,636 km (0.116 R)
• M13: 6,525,908 km (0.113 R)
• M14: 7,974,314 km (0.11 R)
• M15: 8,411,739 km (0.106 R)
• M16: 10,579,861 km (0.058 R)
• M17: 12,561,733 km (0.086 R)
• M18: 13,455,880 km (0.101 R)
• M19: 13,825,087 km (0.111 R)
• M20: 15,038,924 km (0.06 R)
• M21: 15,303,114 km (0.104 R)
• M22: 15,637,914 km (0.077 R)
• M23: 19,026,456 km (0.055 R)
• M24: 20,202,893 km (0.088 R)
• M25: 22,873,215 km (0.105 R)
• M26: 26,818,859 km (0.083 R)
• M27: 33,494,814 km (0.066 R)
• M28: 34,058,648 km (0.038 R)
• M29: 37,333,645 km (0.091 R)
• M30: 39,797,222 km (0.091 R)
• M31: 43,692,302 km (0.061 R)
• M32: 45,181,848 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874.4

Radius: 4.3

Gravity: 47.29 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 10.03 AU - 11.53 AU

Year: 22853 Days

Day: 15.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 90,212,956 km

• M1: 54,603 km (0.118 R)
• M2: 681,717 km (0.119 R)
• M3: 974,780 km (0.09 R)
• M4: 1,908,121 km (0.086 R)
• M5: 2,662,244 km (0.115 R)
• M6: 3,504,181 km (0.105 R)
• M7: 4,053,055 km (0.078 R)
• M8: 4,366,014 km (0.112 R)
• M9: 7,681,402 km (0.116 R)
• M10: 8,602,326 km (0.088 R)
• M11: 9,838,603 km (0.105 R)
• M12: 10,212,448 km (0.111 R)
• M13: 10,856,617 km (0.085 R)
• M14: 11,323,362 km (0.103 R)
• M15: 11,664,894 km (0.093 R)
• M16: 11,942,996 km (0.079 R)
• M17: 12,877,385 km (0.08 R)
• M18: 13,324,832 km (0.068 R)
• M19: 13,937,136 km (0.099 R)
• M20: 15,971,966 km (0.088 R)
• M21: 17,373,100 km (0.093 R)
• M22: 18,382,736 km (0.115 R)
• M23: 18,570,332 km (0.088 R)
• M24: 20,821,331 km (0.104 R)
• M25: 26,329,076 km (0.059 R)
• M26: 28,153,122 km (0.11 R)
• M27: 29,159,617 km (0.076 R)
• M28: 34,839,549 km (0.118 R)
• M29: 37,786,029 km (0.104 R)
• M30: 39,009,739 km (0.067 R)
• M31: 42,510,629 km (0.11 R)
• M32: 48,145,532 km (0.111 R)
• M33: 49,764,480 km (0.053 R)
• M34: 51,605,431 km (0.114 R)
• M35: 64,257,970 km (0.062 R)
• M36: 67,325,325 km (0.115 R)
• M37: 67,548,076 km (0.114 R)
• M38: 69,574,978 km (0.087 R)
• M39: 88,332,756 km (0.056 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 13,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit