🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.2

Radius: 13.2

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.72 AU - 0.88 AU

Year: 462 Days

Day: 10.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 53,383,838 km

• M1: 164,109 km (0.091 R)
• M2: 714,479 km (0.107 R)
• M3: 1,152,951 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.7

Radius: 14.2

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.78 AU - 1.2 AU

Year: 636 Days

Day: 10.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,383,838 km

• M1: 177,124 km (0.088 R)
• M2: 620,532 km (0.095 R)
• M3: 1,265,299 km (0.097 R)
• M4: 1,775,727 km (0.062 R)
• M5: 2,250,850 km (0.092 R)
• M6: 2,845,202 km (0.035 R)
• M7: 3,809,959 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.6

Radius: 11.6

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.24 AU - 1.44 AU

Year: 1002 Days

Day: 6.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,383,838 km

• M1: 144,960 km (0.075 R)
• M2: 722,109 km (0.083 R)
• M3: 1,140,235 km (0.067 R)
• M4: 1,505,852 km (0.058 R)
• M5: 1,892,413 km (0.034 R)
• M6: 2,532,991 km (0.048 R)
• M7: 3,142,752 km (0.104 R)
• M8: 4,028,072 km (0.068 R)
• M9: 4,547,476 km (0.117 R)
• M10: 5,033,520 km (0.091 R)
• M11: 5,700,427 km (0.115 R)
• M12: 6,154,756 km (0.086 R)
• M13: 6,917,705 km (0.109 R)
• M14: 7,460,745 km (0.097 R)
• M15: 8,005,281 km (0.093 R)
• M16: 9,379,786 km (0.11 R)
• M17: 9,861,043 km (0.117 R)
• M18: 10,678,146 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.4

Radius: 13.6

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.18 AU - 1.78 AU

Year: 1163 Days

Day: 6 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,383,838 km

• M1: 169,195 km (0.119 R)
• M2: 868,266 km (0.103 R)
• M3: 1,646,325 km (0.042 R)
• M4: 2,107,684 km (0.109 R)
• M5: 2,539,125 km (0.112 R)
• M6: 3,187,482 km (0.063 R)
• M7: 3,901,812 km (0.033 R)
• M8: 5,171,748 km (0.059 R)
• M9: 6,180,486 km (0.086 R)
• M10: 6,701,237 km (0.099 R)
• M11: 7,448,478 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.4

Radius: 14

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.7 AU - 2.4 AU

Year: 1895 Days

Day: 6.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 71.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,383,838 km

• M1: 174,132 km (0.116 R)
• M2: 646,562 km (0.077 R)
• M3: 1,164,021 km (0.112 R)
• M4: 1,783,057 km (0.106 R)
• M5: 2,749,010 km (0.055 R)
• M6: 3,259,738 km (0.061 R)
• M7: 3,901,812 km (0.084 R)
• M8: 4,400,721 km (0.062 R)
• M9: 5,441,323 km (0.053 R)
• M10: 6,230,303 km (0.035 R)
• M11: 7,759,193 km (0.118 R)
• M12: 8,349,656 km (0.12 R)
• M13: 9,306,932 km (0.098 R)
• M14: 10,673,210 km (0.109 R)
• M15: 13,162,967 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.2

Radius: 13.4

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.04 AU - 2.14 AU

Year: 1951 Days

Day: 12.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,383,838 km

• M1: 166,652 km (0.082 R)
• M2: 588,219 km (0.107 R)
• M3: 1,060,649 km (0.114 R)
• M4: 1,627,326 km (0.116 R)
• M5: 2,184,877 km (0.056 R)
• M6: 2,883,349 km (0.095 R)
• M7: 3,849,602 km (0.098 R)
• M8: 4,311,710 km (0.1 R)
• M9: 5,760,864 km (0.099 R)
• M10: 6,938,200 km (0.096 R)
• M11: 9,598,798 km (0.105 R)
• M12: 10,244,761 km (0.064 R)
• M13: 11,249,461 km (0.093 R)
• M14: 12,397,774 km (0.1 R)
• M15: 13,288,480 km (0.115 R)
• M16: 15,333,931 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.8

Radius: 8.4

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.95 AU - 2.79 AU

Year: 2356 Days

Day: 6.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 53,383,838 km

• M1: 106,214 km (0.048 R)
• M2: 423,362 km (0.089 R)
• M3: 744,399 km (0.061 R)
• M4: 1,196,933 km (0.097 R)
• M5: 1,903,633 km (0.086 R)
• M6: 2,244,716 km (0.103 R)
• M7: 2,597,617 km (0.062 R)
• M8: 3,050,899 km (0.063 R)
• M9: 3,381,660 km (0.12 R)
• M10: 3,717,956 km (0.101 R)
• M11: 4,095,990 km (0.092 R)
• M12: 4,562,436 km (0.069 R)
• M13: 4,907,409 km (0.108 R)
• M14: 5,223,509 km (0.106 R)
• M15: 6,599,360 km (0.096 R)
• M16: 8,844,376 km (0.077 R)
• M17: 9,313,664 km (0.09 R)
• M18: 10,448,813 km (0.096 R)
• M19: 11,673,571 km (0.107 R)
• M20: 12,569,363 km (0.095 R)
• M21: 13,774,822 km (0.048 R)
• M22: 14,914,758 km (0.073 R)
• M23: 15,340,065 km (0.113 R)
• M24: 16,067,111 km (0.077 R)
• M25: 16,414,028 km (0.082 R)
• M26: 16,918,472 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.2

Radius: 9.9

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.33 AU - 3.41 AU

Year: 3139 Days

Day: 6 Hours

Environment

Temp: -201 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,383,838 km

• M1: 123,119 km (0.117 R)
• M2: 578,345 km (0.081 R)
• M3: 925,562 km (0.067 R)
• M4: 1,425,668 km (0.098 R)
• M5: 2,033,783 km (0.109 R)
• M6: 2,539,723 km (0.053 R)
• M7: 3,075,583 km (0.079 R)
• M8: 3,844,815 km (0.112 R)
• M9: 4,395,784 km (0.09 R)
• M10: 4,737,166 km (0.054 R)
• M11: 5,244,901 km (0.095 R)
• M12: 6,060,659 km (0.049 R)
• M13: 6,542,513 km (0.119 R)
• M14: 6,928,177 km (0.092 R)
• M15: 7,519,238 km (0.093 R)
• M16: 7,975,810 km (0.117 R)
• M17: 8,873,099 km (0.085 R)
• M18: 9,235,724 km (0.106 R)
• M19: 10,785,857 km (0.059 R)
• M20: 13,856,204 km (0.084 R)
• M21: 18,796,224 km (0.108 R)
• M22: 20,007,070 km (0.115 R)
• M23: 21,985,651 km (0.116 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.1

Radius: 10.1

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 3.38 AU - 4.02 AU

Year: 4595 Days

Day: 13.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,383,838 km

• M1: 147,952 km (0.085 R)
• M2: 663,616 km (0.106 R)
• M3: 994,078 km (0.06 R)
• M4: 1,308,383 km (0.045 R)
• M5: 2,435,753 km (0.066 R)
• M6: 3,021,727 km (0.094 R)
• M7: 4,316,048 km (0.117 R)
• M8: 6,060,359 km (0.12 R)
• M9: 7,232,159 km (0.032 R)
• M10: 9,282,997 km (0.078 R)
• M11: 10,178,639 km (0.081 R)
• M12: 10,793,187 km (0.05 R)
• M13: 16,970,682 km (0.092 R)
• M14: 22,056,411 km (0.076 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.8

Radius: 4

Gravity: 53.36 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.68 AU - 7.18 AU

Year: 10528 Days

Day: 20.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 53,383,838 km

• M1: 49,816 km (0.065 R)
• M2: 311,762 km (0.119 R)
• M3: 550,819 km (0.097 R)
• M4: 2,109,180 km (0.072 R)
• M5: 2,517,433 km (0.097 R)
• M6: 2,707,721 km (0.071 R)
• M7: 2,839,816 km (0.063 R)
• M8: 2,999,437 km (0.117 R)
• M9: 4,115,138 km (0.071 R)
• M10: 5,241,012 km (0.119 R)
• M11: 6,171,959 km (0.067 R)
• M12: 6,837,221 km (0.105 R)
• M13: 7,124,599 km (0.09 R)
• M14: 7,679,457 km (0.117 R)
• M15: 7,855,833 km (0.11 R)
• M16: 8,035,051 km (0.07 R)
• M17: 9,167,358 km (0.077 R)
• M18: 10,837,169 km (0.056 R)
• M19: 11,284,317 km (0.098 R)
• M20: 13,385,718 km (0.11 R)
• M21: 15,522,873 km (0.089 R)
• M22: 18,109,121 km (0.09 R)
• M23: 19,219,437 km (0.072 R)
• M24: 19,381,601 km (0.079 R)
• M25: 19,708,771 km (0.058 R)
• M26: 21,400,275 km (0.05 R)
• M27: 22,460,176 km (0.059 R)
• M28: 24,021,080 km (0.099 R)
• M29: 26,146,267 km (0.094 R)
• M30: 26,848,031 km (0.1 R)
• M31: 27,356,813 km (0.103 R)
• M32: 27,872,028 km (0.117 R)
• M33: 28,393,676 km (0.096 R)
• M34: 31,887,385 km (0.102 R)
• M35: 34,688,156 km (0.082 R)
• M36: 34,928,709 km (0.095 R)
• M37: 35,779,472 km (0.049 R)
• M38: 42,673,241 km (0.087 R)
• M39: 44,489,659 km (0.072 R)
• M40: 49,179,402 km (0.047 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: 505 - 14,772 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit