🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.56 AU - 0.6 AU

Year: 281 Days

Day: 23.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,278,265 km

• M1: 27,825 km (0.105 R)
• M2: 58,942 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.8

Radius: 8.9

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.66 AU - 0.74 AU

Year: 372 Days

Day: 5.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,278,265 km

• M1: 110,702 km (0.089 R)
• M2: 390,151 km (0.057 R)
• M3: 667,207 km (0.041 R)
• M4: 975,528 km (0.115 R)
• M5: 1,370,616 km (0.09 R)
• M6: 1,701,377 km (0.105 R)
• M7: 2,018,524 km (0.084 R)
• M8: 2,338,664 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.7

Radius: 12.4

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.71 AU - 2.97 AU

Year: 3043 Days

Day: 7.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,278,265 km

• M1: 154,535 km (0.117 R)
• M2: 793,168 km (0.088 R)
• M3: 1,228,947 km (0.116 R)
• M4: 1,694,046 km (0.103 R)
• M5: 2,414,360 km (0.056 R)
• M6: 5,217,824 km (0.093 R)
• M7: 5,973,593 km (0.074 R)
• M8: 7,182,792 km (0.118 R)
• M9: 8,684,306 km (0.096 R)
• M10: 10,157,097 km (0.07 R)
• M11: 10,735,442 km (0.088 R)
• M12: 11,173,615 km (0.088 R)
• M13: 12,516,255 km (0.027 R)
• M14: 13,091,609 km (0.11 R)
• M15: 14,342,696 km (0.05 R)
• M16: 14,728,359 km (0.077 R)
• M17: 15,170,421 km (0.076 R)
• M18: 17,352,007 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.7

Radius: 14

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.97 AU - 3.05 AU

Year: 3320 Days

Day: 15 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,278,265 km

• M1: 174,581 km (0.116 R)
• M2: 614,847 km (0.107 R)
• M3: 1,238,970 km (0.108 R)
• M4: 1,783,655 km (0.091 R)
• M5: 2,935,260 km (0.076 R)
• M6: 4,957,823 km (0.061 R)
• M7: 5,742,763 km (0.052 R)
• M8: 6,609,084 km (0.104 R)
• M9: 8,274,408 km (0.101 R)
• M10: 9,671,802 km (0.039 R)
• M11: 10,617,559 km (0.079 R)
• M12: 11,330,094 km (0.044 R)
• M13: 12,536,601 km (0.048 R)
• M14: 13,496,271 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.3

Radius: 9.9

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.5 AU - 4.56 AU

Year: 6130 Days

Day: 10.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,278,265 km

• M1: 123,119 km (0.052 R)
• M2: 499,806 km (0.115 R)
• M3: 891,903 km (0.108 R)
• M4: 1,646,325 km (0.089 R)
• M5: 2,339,412 km (0.115 R)
• M6: 2,926,882 km (0.032 R)
• M7: 3,316,734 km (0.096 R)
• M8: 6,086,539 km (0.109 R)
• M9: 6,824,505 km (0.081 R)
• M10: 7,163,494 km (0.068 R)
• M11: 10,295,176 km (0.056 R)
• M12: 10,787,353 km (0.09 R)
• M13: 11,342,062 km (0.101 R)
• M14: 12,558,741 km (0.029 R)
• M15: 13,224,751 km (0.105 R)
• M16: 13,699,575 km (0.071 R)
• M17: 16,126,650 km (0.043 R)
• M18: 19,428,275 km (0.083 R)
• M19: 20,042,225 km (0.117 R)
• M20: 20,668,891 km (0.106 R)
• M21: 21,094,048 km (0.103 R)
• M22: 21,524,890 km (0.119 R)
• M23: 22,928,267 km (0.081 R)
• M24: 24,391,634 km (0.111 R)
• M25: 27,931,867 km (0.112 R)
• M26: 28,277,738 km (0.102 R)
• M27: 29,066,268 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.4

Radius: 8.9

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.34 AU - 6.06 AU

Year: 7539 Days

Day: 5.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,278,265 km

• M1: 111,002 km (0.075 R)
• M2: 476,320 km (0.101 R)
• M3: 1,074,562 km (0.093 R)
• M4: 1,710,652 km (0.037 R)
• M5: 2,084,646 km (0.111 R)
• M6: 4,252,319 km (0.065 R)
• M7: 5,454,638 km (0.101 R)
• M8: 6,179,888 km (0.101 R)
• M9: 7,033,643 km (0.055 R)
• M10: 8,477,562 km (0.096 R)
• M11: 9,858,500 km (0.097 R)
• M12: 11,521,280 km (0.091 R)
• M13: 13,826,434 km (0.063 R)
• M14: 17,498,164 km (0.104 R)
• M15: 18,303,449 km (0.072 R)
• M16: 21,351,805 km (0.071 R)
• M17: 24,416,616 km (0.085 R)
• M18: 26,053,816 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.8

Radius: 11.1

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.32 AU - 6.68 AU

Year: 8201 Days

Day: 14 Hours

Environment

Temp: -216 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,278,265 km

• M1: 146,606 km (0.079 R)
• M2: 501,901 km (0.119 R)
• M3: 913,893 km (0.116 R)
• M4: 1,390,363 km (0.118 R)
• M5: 2,232,000 km (0.04 R)
• M6: 4,027,773 km (0.101 R)
• M7: 4,490,778 km (0.093 R)
• M8: 8,141,565 km (0.104 R)
• M9: 9,249,636 km (0.099 R)
• M10: 9,864,334 km (0.034 R)
• M11: 10,759,976 km (0.096 R)
• M12: 11,817,933 km (0.048 R)
• M13: 15,020,075 km (0.114 R)
• M14: 16,958,863 km (0.114 R)
• M15: 21,653,843 km (0.088 R)
• M16: 24,475,558 km (0.117 R)
• M17: 24,923,454 km (0.057 R)
• M18: 26,113,655 km (0.105 R)
• M19: 26,675,694 km (0.102 R)
• M20: 27,150,069 km (0.113 R)
• M21: 28,805,369 km (0.1 R)
• M22: 33,182,005 km (0.107 R)
• M23: 33,952,134 km (0.111 R)
• M24: 34,959,826 km (0.077 R)
• M25: 37,863,371 km (0.112 R)
• M26: 40,050,940 km (0.098 R)
• M27: 40,798,630 km (0.027 R)
• M28: 42,967,201 km (0.041 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 10,381 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit