🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.79 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.24 AU - 1.9 AU

Year: 715 Days

Day: 14.9 Hours

Environment

Temp: -46 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.95 AU - 4.35 AU

Year: 3073 Days

Day: 29.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50

Radius: 8.3

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.79 AU - 7.49 AU

Year: 6218 Days

Day: 10.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,944,357 km

• M1: 103,372 km (0.086 R)
• M2: 379,081 km (0.11 R)
• M3: 677,828 km (0.036 R)
• M4: 1,312,572 km (0.088 R)
• M5: 2,716,847 km (0.101 R)
• M6: 3,124,950 km (0.101 R)
• M7: 4,193,976 km (0.099 R)
• M8: 4,540,146 km (0.056 R)
• M9: 4,925,959 km (0.062 R)
• M10: 5,625,478 km (0.039 R)
• M11: 6,389,325 km (0.059 R)
• M12: 9,065,481 km (0.107 R)
• M13: 9,978,477 km (0.115 R)
• M14: 10,318,962 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.1

Radius: 10.7

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 6.38 AU - 8.18 AU

Year: 7139 Days

Day: 5 Hours

Environment

Temp: -162 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,944,357 km

• M1: 186,399 km (0.095 R)
• M2: 565,779 km (0.109 R)
• M3: 967,300 km (0.077 R)
• M4: 1,329,027 km (0.08 R)
• M5: 1,689,259 km (0.081 R)
• M6: 2,039,617 km (0.106 R)
• M7: 2,595,373 km (0.045 R)
• M8: 2,929,126 km (0.102 R)
• M9: 3,729,774 km (0.12 R)
• M10: 4,281,491 km (0.078 R)
• M11: 4,914,739 km (0.101 R)
• M12: 9,141,477 km (0.044 R)
• M13: 9,833,068 km (0.116 R)
• M14: 12,426,796 km (0.117 R)
• M15: 14,162,430 km (0.037 R)
• M16: 14,620,499 km (0.085 R)
• M17: 15,147,682 km (0.113 R)
• M18: 17,909,408 km (0.072 R)
• M19: 18,717,237 km (0.082 R)
• M20: 20,045,815 km (0.117 R)
• M21: 21,287,029 km (0.094 R)
• M22: 22,734,089 km (0.094 R)
• M23: 23,441,986 km (0.057 R)
• M24: 23,841,562 km (0.116 R)
• M25: 25,150,693 km (0.104 R)
• M26: 25,653,940 km (0.105 R)
• M27: 29,458,514 km (0.038 R)
• M28: 31,253,389 km (0.079 R)
• M29: 34,336,750 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.3

Radius: 11.2

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 8.3 AU - 12.68 AU

Year: 12348 Days

Day: 7 Hours

Environment

Temp: -169 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,944,357 km

• M1: 144,362 km (0.051 R)
• M2: 604,375 km (0.058 R)
• M3: 1,241,812 km (0.087 R)
• M4: 2,260,424 km (0.115 R)
• M5: 2,966,376 km (0.105 R)
• M6: 3,350,394 km (0.039 R)
• M7: 4,220,006 km (0.106 R)
• M8: 6,568,843 km (0.095 R)
• M9: 9,000,406 km (0.059 R)
• M10: 9,724,310 km (0.089 R)
• M11: 10,258,225 km (0.032 R)
• M12: 10,905,984 km (0.068 R)
• M13: 12,334,344 km (0.095 R)
• M14: 14,908,475 km (0.087 R)
• M15: 17,887,268 km (0.089 R)
• M16: 19,656,263 km (0.103 R)
• M17: 20,223,239 km (0.117 R)
• M18: 20,583,171 km (0.079 R)
• M19: 24,017,789 km (0.118 R)
• M20: 26,767,248 km (0.028 R)
• M21: 27,552,188 km (0.118 R)
• M22: 30,750,890 km (0.118 R)
• M23: 31,708,316 km (0.079 R)
• M24: 33,281,637 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.1

Radius: 11.7

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10.22 AU - 10.76 AU

Year: 12348 Days

Day: 6.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,944,357 km

• M1: 173,833 km (0.092 R)
• M2: 1,352,814 km (0.118 R)
• M3: 2,235,291 km (0.095 R)
• M4: 3,000,335 km (0.064 R)
• M5: 6,837,670 km (0.026 R)
• M6: 7,217,948 km (0.057 R)
• M7: 8,230,725 km (0.081 R)
• M8: 10,141,988 km (0.084 R)
• M9: 11,947,784 km (0.057 R)
• M10: 15,076,473 km (0.08 R)
• M11: 16,052,899 km (0.111 R)
• M12: 18,131,262 km (0.093 R)
• M13: 19,765,319 km (0.088 R)
• M14: 20,539,788 km (0.081 R)
• M15: 24,541,231 km (0.116 R)
• M16: 28,640,812 km (0.065 R)
• M17: 29,432,334 km (0.068 R)
• M18: 30,749,543 km (0.069 R)
• M19: 39,489,799 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.9

Radius: 3.7

Gravity: 31.99 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 12.28 AU - 15.5 AU

Year: 18814 Days

Day: 23.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 95.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 76,944,357 km

• M1: 46,076 km (0.092 R)
• M2: 194,028 km (0.097 R)
• M3: 603,777 km (0.109 R)
• M4: 904,469 km (0.083 R)
• M5: 1,883,288 km (0.094 R)
• M6: 2,068,191 km (0.109 R)
• M7: 2,224,670 km (0.111 R)
• M8: 2,410,171 km (0.112 R)
• M9: 2,696,202 km (0.064 R)
• M10: 3,283,224 km (0.085 R)
• M11: 3,469,324 km (0.102 R)
• M12: 3,747,576 km (0.064 R)
• M13: 5,045,637 km (0.115 R)
• M14: 5,738,126 km (0.087 R)
• M15: 5,930,359 km (0.028 R)
• M16: 6,409,371 km (0.056 R)
• M17: 6,616,415 km (0.07 R)
• M18: 9,675,242 km (0.119 R)
• M19: 10,002,862 km (0.117 R)
• M20: 10,225,463 km (0.094 R)
• M21: 12,315,196 km (0.112 R)
• M22: 12,699,962 km (0.096 R)
• M23: 16,919,818 km (0.037 R)
• M24: 23,127,980 km (0.105 R)
• M25: 24,308,008 km (0.12 R)
• M26: 24,811,405 km (0.103 R)
• M27: 25,014,709 km (0.106 R)
• M28: 25,424,457 km (0.109 R)
• M29: 28,642,457 km (0.08 R)
• M30: 30,581,246 km (0.067 R)
• M31: 34,087,221 km (0.115 R)
• M32: 35,613,120 km (0.106 R)
• M33: 36,131,775 km (0.044 R)
• M34: 43,486,007 km (0.063 R)
• M35: 45,127,843 km (0.117 R)
• M36: 48,852,681 km (0.102 R)
• M37: 50,300,638 km (0.106 R)
• M38: 51,117,443 km (0.114 R)
• M39: 55,680,776 km (0.089 R)
• M40: 55,854,759 km (0.109 R)
• M41: 59,958,527 km (0.08 R)
• M42: 61,803,817 km (0.03 R)
• M43: 62,552,405 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 277.8

Radius: 7.5

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 15.39 AU - 16.35 AU

Year: 22977 Days

Day: 17.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,944,357 km

• M1: 93,648 km (0.111 R)
• M2: 370,404 km (0.083 R)
• M3: 689,347 km (0.1 R)
• M4: 1,068,727 km (0.102 R)
• M5: 1,809,237 km (0.107 R)
• M6: 2,230,504 km (0.064 R)
• M7: 2,760,829 km (0.063 R)
• M8: 3,142,453 km (0.114 R)
• M9: 4,997,766 km (0.06 R)
• M10: 8,421,313 km (0.097 R)
• M11: 9,969,352 km (0.091 R)
• M12: 11,101,359 km (0.103 R)
• M13: 12,128,947 km (0.106 R)
• M14: 16,492,417 km (0.116 R)
• M15: 20,007,369 km (0.069 R)
• M16: 23,406,532 km (0.096 R)
• M17: 24,787,170 km (0.088 R)
• M18: 25,191,533 km (0.063 R)
• M19: 26,221,365 km (0.111 R)
• M20: 29,030,065 km (0.05 R)
• M21: 30,047,331 km (0.061 R)
• M22: 31,088,083 km (0.119 R)
• M23: 31,322,653 km (0.094 R)
• M24: 39,741,123 km (0.116 R)
• M25: 42,274,114 km (0.112 R)
• M26: 46,425,156 km (0.101 R)
• M27: 50,192,629 km (0.073 R)
• M28: 51,656,594 km (0.12 R)
• M29: 54,840,036 km (0.045 R)
• M30: 56,218,581 km (0.054 R)
• M31: 58,686,646 km (0.043 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.3

Radius: 6.8

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 19.56 AU - 19.76 AU

Year: 31681 Days

Day: 19.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,944,357 km

• M1: 84,972 km (0.081 R)
• M2: 304,581 km (0.101 R)
• M3: 525,388 km (0.07 R)
• M4: 1,187,358 km (0.044 R)
• M5: 1,959,134 km (0.03 R)
• M6: 2,286,753 km (0.119 R)
• M7: 2,556,179 km (0.074 R)
• M8: 3,351,740 km (0.115 R)
• M9: 3,946,242 km (0.057 R)
• M10: 4,235,714 km (0.112 R)
• M11: 5,077,801 km (0.035 R)
• M12: 7,324,461 km (0.12 R)
• M13: 9,294,217 km (0.103 R)
• M14: 9,807,786 km (0.069 R)
• M15: 10,521,817 km (0.109 R)
• M16: 11,722,639 km (0.06 R)
• M17: 12,664,058 km (0.116 R)
• M18: 17,189,394 km (0.065 R)
• M19: 22,484,111 km (0.089 R)
• M20: 26,674,048 km (0.063 R)
• M21: 28,061,120 km (0.112 R)
• M22: 29,495,464 km (0.089 R)
• M23: 34,091,260 km (0.065 R)
• M24: 37,979,459 km (0.051 R)
• M25: 38,995,677 km (0.03 R)
• M26: 52,105,986 km (0.116 R)
• M27: 52,462,328 km (0.105 R)
• M28: 57,243,476 km (0.12 R)
• M29: 60,718,485 km (0.105 R)
• M30: 62,106,902 km (0.063 R)
• M31: 63,313,858 km (0.104 R)
• M32: 71,322,730 km (0.093 R)
• M33: 72,646,072 km (0.097 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 17,897 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit