🌌 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: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.62 AU - 0.66 AU

Year: 336 Days

Day: 21.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,745,460 km

• M1: 322,234 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.8

Radius: 8.8

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.81 AU - 1.07 AU

Year: 598 Days

Day: 10.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,745,460 km

• M1: 110,403 km (0.102 R)
• M2: 284,984 km (0.108 R)
• M3: 571,913 km (0.04 R)
• M4: 811,868 km (0.052 R)
• M5: 1,241,812 km (0.115 R)
• M6: 1,501,663 km (0.086 R)
• M7: 1,783,506 km (0.096 R)
• M8: 2,419,596 km (0.061 R)
• M9: 2,636,812 km (0.103 R)
• M10: 3,254,950 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.5

Radius: 8.2

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.28 AU - 2.08 AU

Year: 1428 Days

Day: 10.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,745,460 km

• M1: 102,325 km (0.097 R)
• M2: 275,709 km (0.115 R)
• M3: 552,914 km (0.073 R)
• M4: 899,532 km (0.064 R)
• M5: 1,173,894 km (0.1 R)
• M6: 2,367,087 km (0.096 R)
• M7: 2,633,371 km (0.112 R)
• M8: 2,936,606 km (0.094 R)
• M9: 3,163,696 km (0.042 R)
• M10: 3,339,772 km (0.094 R)
• M11: 3,769,866 km (0.04 R)
• M12: 4,389,501 km (0.12 R)
• M13: 4,710,388 km (0.115 R)
• M14: 5,478,424 km (0.117 R)
• M15: 6,289,244 km (0.061 R)
• M16: 6,471,604 km (0.094 R)
• M17: 7,639,365 km (0.09 R)
• M18: 8,175,224 km (0.104 R)
• M19: 8,594,098 km (0.104 R)
• M20: 10,609,780 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.6

Radius: 9.7

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.75 AU - 2.27 AU

Year: 1869 Days

Day: 13.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,745,460 km

• M1: 129,851 km (0.088 R)
• M2: 321,486 km (0.093 R)
• M3: 514,916 km (0.03 R)
• M4: 1,413,101 km (0.108 R)
• M5: 2,109,629 km (0.087 R)
• M6: 2,299,768 km (0.077 R)
• M7: 2,657,157 km (0.06 R)
• M8: 2,938,850 km (0.076 R)
• M9: 3,316,136 km (0.052 R)
• M10: 3,872,640 km (0.079 R)
• M11: 4,421,066 km (0.114 R)
• M12: 4,950,942 km (0.109 R)
• M13: 5,164,717 km (0.084 R)
• M14: 5,371,611 km (0.116 R)
• M15: 5,713,442 km (0.11 R)
• M16: 6,053,777 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.5

Radius: 12.9

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.97 AU - 4.81 AU

Year: 5033 Days

Day: 9.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 55,745,460 km

• M1: 252,372 km (0.066 R)
• M2: 542,741 km (0.118 R)
• M3: 817,702 km (0.12 R)
• M4: 1,109,268 km (0.108 R)
• M5: 1,401,433 km (0.109 R)
• M6: 2,943,039 km (0.082 R)
• M7: 3,820,430 km (0.112 R)
• M8: 5,414,695 km (0.107 R)
• M9: 6,247,506 km (0.105 R)
• M10: 7,049,500 km (0.094 R)
• M11: 7,579,825 km (0.116 R)
• M12: 7,933,474 km (0.1 R)
• M13: 9,716,531 km (0.063 R)
• M14: 9,970,698 km (0.064 R)
• M15: 10,302,207 km (0.104 R)
• M16: 11,097,469 km (0.087 R)
• M17: 11,922,502 km (0.086 R)
• M18: 12,448,488 km (0.047 R)
• M19: 12,695,025 km (0.115 R)
• M20: 13,069,468 km (0.067 R)
• M21: 15,250,157 km (0.11 R)
• M22: 16,263,533 km (0.113 R)
• M23: 17,845,380 km (0.084 R)
• M24: 18,739,377 km (0.084 R)
• M25: 21,770,081 km (0.081 R)
• M26: 22,425,768 km (0.077 R)
• M27: 23,035,379 km (0.076 R)
• M28: 24,279,286 km (0.071 R)
• M29: 24,855,537 km (0.061 R)
• M30: 26,565,291 km (0.043 R)
• M31: 27,594,075 km (0.034 R)
• M32: 27,900,452 km (0.046 R)
• M33: 28,394,125 km (0.051 R)
• M34: 30,798,761 km (0.094 R)
• M35: 31,906,234 km (0.1 R)
• M36: 33,167,344 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.8

Radius: 8.7

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 4.57 AU - 6.11 AU

Year: 8095 Days

Day: 10.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,745,460 km

• M1: 110,403 km (0.091 R)
• M2: 497,263 km (0.104 R)
• M3: 854,802 km (0.096 R)
• M4: 1,198,728 km (0.055 R)
• M5: 1,734,587 km (0.085 R)
• M6: 2,620,207 km (0.108 R)
• M7: 3,142,752 km (0.071 R)
• M8: 5,276,616 km (0.079 R)
• M9: 5,705,364 km (0.067 R)
• M10: 6,015,630 km (0.094 R)
• M11: 7,045,162 km (0.111 R)
• M12: 7,415,118 km (0.063 R)
• M13: 7,616,327 km (0.109 R)
• M14: 9,465,207 km (0.102 R)
• M15: 9,750,041 km (0.032 R)
• M16: 10,932,014 km (0.068 R)
• M17: 12,767,281 km (0.057 R)
• M18: 13,332,461 km (0.098 R)
• M19: 14,923,584 km (0.04 R)
• M20: 15,425,784 km (0.099 R)
• M21: 16,868,805 km (0.043 R)
• M22: 17,249,382 km (0.109 R)
• M23: 17,595,402 km (0.079 R)
• M24: 18,535,176 km (0.097 R)
• M25: 18,813,877 km (0.056 R)
• M26: 20,197,508 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 762.8

Radius: 3.5

Gravity: 62.27 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.59 AU - 7.35 AU

Year: 10796 Days

Day: 19.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 55,745,460 km

• M1: 43,533 km (0.114 R)
• M2: 122,969 km (0.116 R)
• M3: 264,190 km (0.051 R)
• M4: 353,201 km (0.119 R)
• M5: 608,564 km (0.108 R)
• M6: 1,052,870 km (0.112 R)
• M7: 2,009,698 km (0.078 R)
• M8: 2,175,153 km (0.072 R)
• M9: 2,303,807 km (0.062 R)
• M10: 3,994,413 km (0.094 R)
• M11: 4,651,746 km (0.038 R)
• M12: 5,194,337 km (0.081 R)
• M13: 5,527,641 km (0.08 R)
• M14: 6,965,426 km (0.114 R)
• M15: 7,948,883 km (0.103 R)
• M16: 8,318,988 km (0.065 R)
• M17: 8,486,089 km (0.114 R)
• M18: 8,570,312 km (0.093 R)
• M19: 8,825,526 km (0.074 R)
• M20: 9,435,437 km (0.074 R)
• M21: 13,472,335 km (0.093 R)
• M22: 14,169,910 km (0.102 R)
• M23: 15,617,868 km (0.086 R)
• M24: 17,196,126 km (0.102 R)
• M25: 21,643,072 km (0.091 R)
• M26: 22,183,868 km (0.074 R)
• M27: 25,060,486 km (0.069 R)
• M28: 25,423,261 km (0.118 R)
• M29: 25,715,425 km (0.07 R)
• M30: 27,503,419 km (0.059 R)
• M31: 27,959,842 km (0.088 R)
• M32: 33,813,756 km (0.118 R)
• M33: 34,659,134 km (0.097 R)
• M34: 35,171,207 km (0.071 R)
• M35: 37,788,572 km (0.102 R)
• M36: 40,316,327 km (0.118 R)
• M37: 43,877,803 km (0.086 R)
• M38: 48,491,402 km (0.06 R)
• M39: 51,660,782 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 574.9

Radius: 3.7

Gravity: 41.99 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.55 AU - 7.61 AU

Year: 13690 Days

Day: 15 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 55,745,460 km

• M1: 89,609 km (0.061 R)
• M2: 174,282 km (0.03 R)
• M3: 808,427 km (0.113 R)
• M4: 944,411 km (0.084 R)
• M5: 2,525,810 km (0.092 R)
• M6: 3,174,616 km (0.057 R)
• M7: 6,001,867 km (0.054 R)
• M8: 7,105,151 km (0.112 R)
• M9: 7,224,680 km (0.111 R)
• M10: 11,125,594 km (0.084 R)
• M11: 11,780,832 km (0.109 R)
• M12: 12,245,483 km (0.099 R)
• M13: 12,507,579 km (0.096 R)
• M14: 13,859,644 km (0.099 R)
• M15: 14,026,596 km (0.111 R)
• M16: 15,049,247 km (0.103 R)
• M17: 16,048,261 km (0.055 R)
• M18: 16,590,105 km (0.113 R)
• M19: 16,895,135 km (0.118 R)
• M20: 19,172,912 km (0.116 R)
• M21: 19,369,334 km (0.102 R)
• M22: 20,433,424 km (0.098 R)
• M23: 20,703,897 km (0.078 R)
• M24: 20,907,948 km (0.084 R)
• M25: 22,293,673 km (0.062 R)
• M26: 25,574,654 km (0.11 R)
• M27: 25,725,747 km (0.097 R)
• M28: 27,182,980 km (0.117 R)
• M29: 27,338,712 km (0.115 R)
• M30: 28,441,398 km (0.107 R)
• M31: 29,891,151 km (0.104 R)
• M32: 32,133,473 km (0.098 R)
• M33: 33,586,816 km (0.09 R)
• M34: 34,544,542 km (0.075 R)
• M35: 36,410,177 km (0.097 R)
• M36: 37,681,310 km (0.066 R)
• M37: 38,509,933 km (0.041 R)
• M38: 39,628,775 km (0.047 R)
• M39: 42,301,939 km (0.104 R)
• M40: 43,081,644 km (0.051 R)
• M41: 44,862,307 km (0.118 R)
• M42: 53,212,711 km (0.099 R)
• M43: 54,637,032 km (0.066 R)
• M44: 55,634,102 km (0.114 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 10,804 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit