🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.5

Radius: 8.3

Gravity: 10.14 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.59 AU - 0.91 AU

Year: 426 Days

Day: 8.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,878,336 km

• M1: 103,223 km (0.111 R)
• M2: 393,742 km (0.107 R)
• M3: 666,010 km (0.09 R)
• M4: 1,339,799 km (0.111 R)
• M5: 1,676,543 km (0.062 R)
• M6: 2,138,053 km (0.084 R)
• M7: 2,408,526 km (0.115 R)
• M8: 3,268,115 km (0.077 R)
• M9: 3,654,377 km (0.117 R)
• M10: 4,057,244 km (0.118 R)
• M11: 4,403,413 km (0.119 R)
• M12: 4,709,491 km (0.118 R)
• M13: 5,612,463 km (0.119 R)
• M14: 5,885,629 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.1

Radius: 8.5

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.66 AU - 1.02 AU

Year: 505 Days

Day: 10 Hours

Environment

Temp: -149 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,878,336 km

• M1: 105,915 km (0.105 R)
• M2: 373,995 km (0.092 R)
• M3: 855,251 km (0.067 R)
• M4: 1,534,874 km (0.108 R)
• M5: 1,821,803 km (0.088 R)
• M6: 2,242,921 km (0.072 R)
• M7: 2,545,557 km (0.051 R)
• M8: 2,811,393 km (0.118 R)
• M9: 3,387,793 km (0.083 R)
• M10: 3,710,925 km (0.105 R)
• M11: 4,699,318 km (0.119 R)
• M12: 5,070,470 km (0.089 R)
• M13: 5,818,908 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.8

Radius: 9.6

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1 AU - 1.56 AU

Year: 950 Days

Day: 10.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,878,336 km

• M1: 119,379 km (0.12 R)
• M2: 495,618 km (0.089 R)
• M3: 883,824 km (0.1 R)
• M4: 1,237,174 km (0.077 R)
• M5: 1,643,482 km (0.066 R)
• M6: 2,000,872 km (0.059 R)
• M7: 2,302,610 km (0.095 R)
• M8: 2,837,722 km (0.118 R)
• M9: 3,771,662 km (0.072 R)
• M10: 4,567,672 km (0.047 R)
• M11: 5,133,451 km (0.104 R)
• M12: 5,666,169 km (0.091 R)
• M13: 6,048,242 km (0.077 R)
• M14: 6,686,875 km (0.04 R)
• M15: 7,535,544 km (0.095 R)
• M16: 7,998,400 km (0.038 R)
• M17: 8,557,896 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.3

Radius: 13.8

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.91 AU - 4.13 AU

Year: 5287 Days

Day: 8.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,878,336 km

• M1: 178,171 km (0.091 R)
• M2: 718,369 km (0.103 R)
• M3: 1,200,673 km (0.097 R)
• M4: 3,339,623 km (0.08 R)
• M5: 6,227,311 km (0.102 R)
• M6: 7,698,606 km (0.119 R)
• M7: 9,633,804 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.7

Radius: 11.8

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 4.45 AU - 4.81 AU

Year: 6536 Days

Day: 12.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 37,878,336 km

• M1: 146,756 km (0.09 R)
• M2: 533,466 km (0.103 R)
• M3: 933,790 km (0.119 R)
• M4: 1,687,464 km (0.092 R)
• M5: 2,891,128 km (0.057 R)
• M6: 3,370,739 km (0.027 R)
• M7: 3,952,077 km (0.106 R)
• M8: 4,518,155 km (0.067 R)
• M9: 5,021,103 km (0.071 R)
• M10: 8,403,810 km (0.12 R)
• M11: 9,700,824 km (0.11 R)
• M12: 10,444,923 km (0.066 R)
• M13: 11,276,987 km (0.099 R)
• M14: 13,017,558 km (0.118 R)
• M15: 14,809,591 km (0.115 R)
• M16: 17,224,250 km (0.057 R)
• M17: 17,969,547 km (0.047 R)
• M18: 21,865,823 km (0.116 R)
• M19: 22,982,122 km (0.079 R)
• M20: 26,115,001 km (0.096 R)
• M21: 26,648,617 km (0.091 R)
• M22: 27,280,369 km (0.112 R)
• M23: 29,330,757 km (0.117 R)
• M24: 32,596,329 km (0.097 R)
• M25: 34,476,026 km (0.032 R)
• M26: 36,426,782 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.7

Radius: 12.5

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.36 AU - 6.28 AU

Year: 8050 Days

Day: 7.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,878,336 km

• M1: 158,574 km (0.114 R)
• M2: 788,680 km (0.113 R)
• M3: 2,031,240 km (0.034 R)
• M4: 3,143,500 km (0.042 R)
• M5: 4,288,223 km (0.106 R)
• M6: 5,035,016 km (0.093 R)
• M7: 5,439,977 km (0.112 R)
• M8: 6,073,374 km (0.104 R)
• M9: 7,945,741 km (0.115 R)
• M10: 12,020,189 km (0.104 R)
• M11: 12,747,384 km (0.074 R)
• M12: 19,332,383 km (0.117 R)
• M13: 21,786,387 km (0.08 R)
• M14: 22,431,004 km (0.118 R)
• M15: 24,136,270 km (0.095 R)
• M16: 24,904,006 km (0.06 R)
• M17: 27,058,365 km (0.054 R)
• M18: 27,803,363 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.6

Radius: 5.8

Gravity: 25.82 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.88 AU - 9.38 AU

Year: 13826 Days

Day: 23.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,878,336 km

• M1: 72,106 km (0.079 R)
• M2: 330,611 km (0.063 R)
• M3: 875,297 km (0.082 R)
• M4: 1,255,575 km (0.076 R)
• M5: 1,468,901 km (0.11 R)
• M6: 1,826,141 km (0.084 R)
• M7: 2,006,706 km (0.102 R)
• M8: 2,577,721 km (0.063 R)
• M9: 3,251,360 km (0.103 R)
• M10: 3,601,270 km (0.063 R)
• M11: 6,210,705 km (0.096 R)
• M12: 6,878,360 km (0.117 R)
• M13: 7,500,688 km (0.083 R)
• M14: 8,015,604 km (0.075 R)
• M15: 10,143,484 km (0.082 R)
• M16: 13,416,087 km (0.047 R)
• M17: 16,696,319 km (0.096 R)
• M18: 31,303,354 km (0.119 R)
• M19: 36,980,444 km (0.11 R)
• M20: 44,351,580 km (0.103 R)
• M21: 45,413,126 km (0.059 R)
• M22: 46,027,226 km (0.111 R)
• M23: 55,041,245 km (0.106 R)
• M24: 60,236,181 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 64.3

Radius: 5.4

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 9.9 AU - 11.48 AU

Year: 22929 Days

Day: 16.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,878,336 km

• M1: 70,610 km (0.115 R)
• M2: 392,844 km (0.072 R)
• M3: 2,045,152 km (0.109 R)
• M4: 2,241,724 km (0.057 R)
• M5: 3,466,931 km (0.1 R)
• M6: 7,482,736 km (0.087 R)
• M7: 8,991,730 km (0.098 R)
• M8: 9,566,784 km (0.056 R)
• M9: 9,886,474 km (0.04 R)
• M10: 11,799,532 km (0.097 R)
• M11: 13,714,834 km (0.066 R)
• M12: 14,416,597 km (0.079 R)
• M13: 19,065,800 km (0.118 R)
• M14: 21,221,655 km (0.1 R)
• M15: 24,454,315 km (0.109 R)
• M16: 26,187,406 km (0.11 R)
• M17: 30,874,906 km (0.052 R)
• M18: 32,690,725 km (0.11 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 18,634 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit