🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.9

Radius: 10.9

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.68 AU - 0.98 AU

Year: 481 Days

Day: 10.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,615,277 km

• M1: 135,536 km (0.108 R)
• M2: 556,803 km (0.119 R)
• M3: 969,544 km (0.031 R)
• M4: 1,468,154 km (0.114 R)
• M5: 1,969,755 km (0.069 R)
• M6: 2,720,886 km (0.119 R)
• M7: 3,086,204 km (0.117 R)
• M8: 3,557,587 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.3

Radius: 8.3

Gravity: 8.57 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.94 AU - 1.34 AU

Year: 774 Days

Day: 12.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,615,277 km

• M1: 103,223 km (0.12 R)
• M2: 463,005 km (0.097 R)
• M3: 1,119,590 km (0.097 R)
• M4: 1,398,441 km (0.107 R)
• M5: 1,809,087 km (0.097 R)
• M6: 3,651,834 km (0.027 R)
• M7: 5,074,061 km (0.106 R)
• M8: 6,811,341 km (0.09 R)
• M9: 8,234,615 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.9

Radius: 10.2

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.99 AU - 1.57 AU

Year: 921 Days

Day: 11.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,615,277 km

• M1: 128,654 km (0.032 R)
• M2: 491,579 km (0.039 R)
• M3: 1,183,768 km (0.07 R)
• M4: 1,519,166 km (0.087 R)
• M5: 2,148,824 km (0.101 R)
• M6: 2,904,891 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.4

Radius: 14.2

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.08 AU - 2.74 AU

Year: 2379 Days

Day: 13.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,615,277 km

• M1: 176,675 km (0.1 R)
• M2: 845,677 km (0.115 R)
• M3: 1,599,949 km (0.074 R)
• M4: 2,838,919 km (0.112 R)
• M5: 3,429,531 km (0.055 R)
• M6: 5,650,461 km (0.059 R)
• M7: 6,773,792 km (0.104 R)
• M8: 7,710,424 km (0.095 R)
• M9: 8,223,395 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.1

Radius: 8

Gravity: 11.27 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.58 AU - 4.78 AU

Year: 5434 Days

Day: 8.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,615,277 km

• M1: 108,010 km (0.044 R)
• M2: 358,436 km (0.117 R)
• M3: 743,651 km (0.086 R)
• M4: 2,601,956 km (0.047 R)
• M5: 2,971,163 km (0.071 R)
• M6: 4,393,390 km (0.092 R)
• M7: 4,756,763 km (0.052 R)
• M8: 6,513,641 km (0.073 R)
• M9: 9,532,975 km (0.119 R)
• M10: 9,791,480 km (0.077 R)
• M11: 11,832,294 km (0.112 R)
• M12: 13,700,771 km (0.109 R)
• M13: 16,859,680 km (0.112 R)
• M14: 17,301,891 km (0.12 R)
• M15: 22,083,189 km (0.089 R)
• M16: 23,073,078 km (0.066 R)
• M17: 27,329,586 km (0.101 R)
• M18: 28,204,135 km (0.118 R)
• M19: 30,193,787 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 599.3

Radius: 4.4

Gravity: 30.96 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 6.5 AU - 10.46 AU

Year: 15701 Days

Day: 24.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,615,277 km

• M1: 54,753 km (0.073 R)
• M2: 239,506 km (0.069 R)
• M3: 807,529 km (0.101 R)
• M4: 2,063,254 km (0.109 R)
• M5: 3,265,722 km (0.111 R)
• M6: 3,697,012 km (0.077 R)
• M7: 4,541,492 km (0.119 R)
• M8: 6,196,045 km (0.096 R)
• M9: 10,518,675 km (0.1 R)
• M10: 17,125,815 km (0.09 R)
• M11: 20,469,925 km (0.073 R)
• M12: 26,578,306 km (0.117 R)
• M13: 27,974,054 km (0.07 R)
• M14: 28,634,379 km (0.109 R)
• M15: 31,379,949 km (0.117 R)
• M16: 34,046,231 km (0.115 R)
• M17: 34,421,124 km (0.108 R)
• M18: 39,137,047 km (0.075 R)
• M19: 40,659,654 km (0.076 R)
• M20: 43,969,806 km (0.077 R)
• M21: 50,631,848 km (0.06 R)
• M22: 53,272,999 km (0.107 R)
• M23: 55,658,037 km (0.111 R)
• M24: 56,526,902 km (0.105 R)
• M25: 61,190,765 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 646.2

Radius: 3.5

Gravity: 52.75 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 9.03 AU - 10.63 AU

Year: 19596 Days

Day: 19.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 73,615,277 km

• M1: 55,800 km (0.119 R)
• M2: 216,618 km (0.093 R)
• M3: 444,605 km (0.086 R)
• M4: 686,654 km (0.077 R)
• M5: 1,351,617 km (0.06 R)
• M6: 3,533,651 km (0.097 R)
• M7: 6,353,422 km (0.081 R)
• M8: 7,019,581 km (0.067 R)
• M9: 7,584,911 km (0.089 R)
• M10: 7,779,837 km (0.049 R)
• M11: 8,805,630 km (0.054 R)
• M12: 11,372,879 km (0.103 R)
• M13: 12,150,937 km (0.053 R)
• M14: 13,884,777 km (0.115 R)
• M15: 14,398,197 km (0.111 R)
• M16: 19,239,633 km (0.117 R)
• M17: 22,670,361 km (0.115 R)
• M18: 25,495,516 km (0.089 R)
• M19: 26,043,344 km (0.091 R)
• M20: 33,631,397 km (0.114 R)
• M21: 36,593,434 km (0.072 R)
• M22: 53,320,571 km (0.058 R)
• M23: 56,219,329 km (0.09 R)
• M24: 61,541,871 km (0.05 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 471 - 16,481 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit