🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.44 AU - 0.68 AU

Year: 275 Days

Day: 43.9 Hours

Environment

Temp: -114 °C

Axial Tilt: 5.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,200,478 km

• M1: 111,899 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.1

Radius: 11.6

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.67 AU - 0.75 AU

Year: 392 Days

Day: 9.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 76,200,478 km

• M1: 153,787 km (0.109 R)
• M2: 582,235 km (0.111 R)
• M3: 1,776,624 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.9

Radius: 15

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.76 AU - 1.12 AU

Year: 598 Days

Day: 13.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,200,478 km

• M1: 186,549 km (0.096 R)
• M2: 905,965 km (0.057 R)
• M3: 1,503,159 km (0.093 R)
• M4: 2,112,172 km (0.079 R)
• M5: 3,102,809 km (0.037 R)
• M6: 3,573,444 km (0.067 R)
• M7: 4,340,582 km (0.093 R)
• M8: 4,933,139 km (0.051 R)
• M9: 5,508,942 km (0.11 R)
• M10: 6,205,469 km (0.103 R)
• M11: 6,919,201 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.6

Radius: 11.7

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.02 AU - 2.2 AU

Year: 2011 Days

Day: 13.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,200,478 km

• M1: 145,559 km (0.108 R)
• M2: 585,227 km (0.08 R)
• M3: 975,378 km (0.031 R)
• M4: 1,475,035 km (0.108 R)
• M5: 1,906,625 km (0.043 R)
• M6: 2,312,334 km (0.099 R)
• M7: 3,908,544 km (0.076 R)
• M8: 4,314,403 km (0.061 R)
• M9: 4,748,236 km (0.109 R)
• M10: 5,483,660 km (0.116 R)
• M11: 6,293,433 km (0.066 R)
• M12: 6,738,786 km (0.072 R)
• M13: 8,519,449 km (0.104 R)
• M14: 9,009,831 km (0.09 R)
• M15: 10,167,120 km (0.056 R)

Asteroid Belt

Center: 2.57 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.9

Radius: 13

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.01 AU - 3.03 AU

Year: 3443 Days

Day: 12.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,200,478 km

• M1: 165,605 km (0.107 R)
• M2: 821,741 km (0.081 R)
• M3: 1,338,602 km (0.073 R)
• M4: 1,744,910 km (0.033 R)
• M5: 2,383,692 km (0.105 R)
• M6: 3,816,092 km (0.079 R)
• M7: 6,912,618 km (0.109 R)
• M8: 7,363,058 km (0.073 R)
• M9: 8,157,572 km (0.099 R)
• M10: 11,054,983 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.1

Radius: 3.2

Gravity: 48.25 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 6.74 AU - 10.06 AU

Year: 15971 Days

Day: 16.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 134 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,200,478 km

• M1: 42,486 km (0.07 R)
• M2: 162,912 km (0.041 R)
• M3: 289,322 km (0.096 R)
• M4: 821,143 km (0.045 R)
• M5: 1,221,018 km (0.078 R)
• M6: 2,449,964 km (0.118 R)
• M7: 5,142,576 km (0.102 R)
• M8: 6,777,382 km (0.061 R)
• M9: 7,509,514 km (0.071 R)
• M10: 13,960,772 km (0.066 R)
• M11: 20,000,039 km (0.115 R)
• M12: 21,047,373 km (0.088 R)
• M13: 28,324,262 km (0.096 R)
• M14: 39,226,058 km (0.1 R)
• M15: 40,724,280 km (0.119 R)
• M16: 44,562,812 km (0.08 R)
• M17: 46,343,476 km (0.113 R)
• M18: 51,969,103 km (0.114 R)
• M19: 55,621,685 km (0.066 R)
• M20: 55,962,020 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.4

Radius: 3.1

Gravity: 64.97 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.97 AU - 10.19 AU

Year: 20994 Days

Day: 20.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 76,200,478 km

• M1: 40,541 km (0.107 R)
• M2: 190,887 km (0.116 R)
• M3: 764,296 km (0.1 R)
• M4: 1,158,636 km (0.096 R)
• M5: 1,692,550 km (0.1 R)
• M6: 1,857,856 km (0.086 R)
• M7: 3,220,693 km (0.085 R)
• M8: 3,562,374 km (0.065 R)
• M9: 3,896,426 km (0.119 R)
• M10: 4,054,850 km (0.058 R)
• M11: 4,351,054 km (0.066 R)
• M12: 4,591,308 km (0.094 R)
• M13: 5,060,597 km (0.096 R)
• M14: 5,249,389 km (0.113 R)
• M15: 5,721,670 km (0.079 R)
• M16: 5,885,180 km (0.118 R)
• M17: 6,840,961 km (0.04 R)
• M18: 6,978,741 km (0.106 R)
• M19: 7,696,212 km (0.108 R)
• M20: 8,408,896 km (0.111 R)
• M21: 10,996,491 km (0.114 R)
• M22: 11,506,171 km (0.055 R)
• M23: 13,413,843 km (0.077 R)
• M24: 18,102,390 km (0.103 R)
• M25: 18,543,703 km (0.109 R)
• M26: 19,910,429 km (0.12 R)
• M27: 20,097,726 km (0.111 R)
• M28: 20,380,616 km (0.115 R)
• M29: 25,386,160 km (0.088 R)
• M30: 26,050,225 km (0.119 R)
• M31: 27,182,681 km (0.064 R)
• M32: 31,912,966 km (0.082 R)
• M33: 36,042,465 km (0.09 R)
• M34: 38,887,368 km (0.112 R)
• M35: 45,018,936 km (0.102 R)
• M36: 50,191,432 km (0.08 R)
• M37: 60,317,113 km (0.074 R)
• M38: 61,102,502 km (0.063 R)
• M39: 62,693,625 km (0.109 R)
• M40: 68,480,071 km (0.109 R)
• M41: 68,906,574 km (0.111 R)
• M42: 71,065,272 km (0.098 R)
• M43: 73,938,448 km (0.083 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 189 - 14,745 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit