🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.39 AU - 0.65 AU

Year: 242 Days

Day: 47.1 Hours

Environment

Temp: -117 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.6 AU - 0.6 AU

Year: 300 Days

Day: 29.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 3.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,310,051 km

• M1: 558,000 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100

Radius: 8.9

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.72 AU - 1.1 AU

Year: 561 Days

Day: 12.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,310,051 km

• M1: 119,529 km (0.098 R)
• M2: 418,276 km (0.119 R)
• M3: 924,664 km (0.094 R)
• M4: 1,273,377 km (0.063 R)
• M5: 1,716,037 km (0.075 R)
• M6: 2,672,865 km (0.099 R)
• M7: 3,590,050 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403

Radius: 9.5

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.95 AU - 1.25 AU

Year: 745 Days

Day: 5.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,310,051 km

• M1: 119,529 km (0.097 R)
• M2: 472,280 km (0.08 R)
• M3: 992,133 km (0.107 R)
• M4: 1,326,484 km (0.076 R)
• M5: 1,849,927 km (0.09 R)
• M6: 2,496,040 km (0.069 R)
• M7: 3,487,725 km (0.087 R)
• M8: 5,181,771 km (0.053 R)
• M9: 5,527,641 km (0.092 R)
• M10: 7,089,742 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.7

Radius: 12.4

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.27 AU - 2.07 AU

Year: 1393 Days

Day: 8.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,310,051 km

• M1: 155,283 km (0.118 R)
• M2: 591,959 km (0.103 R)
• M3: 1,070,373 km (0.108 R)
• M4: 1,963,173 km (0.109 R)
• M5: 2,497,985 km (0.071 R)
• M6: 4,138,924 km (0.08 R)
• M7: 5,697,734 km (0.059 R)
• M8: 6,328,588 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.4

Radius: 10.1

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.87 AU - 2.31 AU

Year: 1951 Days

Day: 9.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,310,051 km

• M1: 129,402 km (0.092 R)
• M2: 708,944 km (0.081 R)
• M3: 1,526,646 km (0.072 R)
• M4: 2,206,569 km (0.103 R)
• M5: 2,699,045 km (0.089 R)
• M6: 3,608,151 km (0.054 R)
• M7: 4,548,523 km (0.1 R)
• M8: 4,874,946 km (0.109 R)
• M9: 5,349,470 km (0.117 R)
• M10: 7,848,951 km (0.107 R)
• M11: 9,582,342 km (0.089 R)
• M12: 11,595,032 km (0.087 R)
• M13: 12,363,666 km (0.072 R)
• M14: 13,454,832 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 11.9

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.51 AU - 2.75 AU

Year: 2754 Days

Day: 8.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,310,051 km

• M1: 153,487 km (0.052 R)
• M2: 950,994 km (0.117 R)
• M3: 1,407,866 km (0.099 R)
• M4: 2,055,176 km (0.104 R)
• M5: 4,306,474 km (0.056 R)
• M6: 5,766,400 km (0.114 R)
• M7: 7,920,459 km (0.078 R)
• M8: 11,956,011 km (0.049 R)
• M9: 13,790,530 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.6

Radius: 12.6

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.84 AU - 2.9 AU

Year: 3139 Days

Day: 6.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,310,051 km

• M1: 156,779 km (0.053 R)
• M2: 548,725 km (0.116 R)
• M3: 1,198,728 km (0.071 R)
• M4: 1,623,885 km (0.11 R)
• M5: 2,493,946 km (0.103 R)
• M6: 3,096,078 km (0.102 R)
• M7: 3,978,555 km (0.067 R)
• M8: 4,434,081 km (0.11 R)
• M9: 4,973,082 km (0.089 R)
• M10: 5,959,680 km (0.096 R)
• M11: 7,515,797 km (0.107 R)
• M12: 11,501,383 km (0.094 R)
• M13: 13,079,043 km (0.118 R)
• M14: 15,843,162 km (0.099 R)
• M15: 16,994,617 km (0.109 R)
• M16: 19,402,096 km (0.082 R)
• M17: 20,527,820 km (0.031 R)
• M18: 21,171,839 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.8

Radius: 9.1

Gravity: 10.29 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.39 AU - 3.63 AU

Year: 4246 Days

Day: 5.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,310,051 km

• M1: 113,096 km (0.088 R)
• M2: 397,482 km (0.092 R)
• M3: 696,827 km (0.112 R)
• M4: 1,028,485 km (0.074 R)
• M5: 1,704,668 km (0.091 R)
• M6: 2,308,445 km (0.089 R)
• M7: 2,936,457 km (0.091 R)
• M8: 3,300,877 km (0.08 R)
• M9: 4,991,782 km (0.107 R)
• M10: 5,316,858 km (0.083 R)
• M11: 5,656,146 km (0.099 R)
• M12: 6,253,789 km (0.103 R)
• M13: 7,788,215 km (0.1 R)
• M14: 8,915,136 km (0.081 R)
• M15: 9,476,876 km (0.107 R)
• M16: 10,715,247 km (0.092 R)
• M17: 12,058,336 km (0.058 R)
• M18: 12,398,672 km (0.103 R)
• M19: 13,047,777 km (0.094 R)
• M20: 13,877,596 km (0.102 R)
• M21: 14,632,168 km (0.084 R)
• M22: 15,357,119 km (0.063 R)
• M23: 16,047,214 km (0.064 R)
• M24: 20,082,168 km (0.07 R)
• M25: 22,187,459 km (0.106 R)
• M26: 24,435,765 km (0.111 R)
• M27: 25,138,875 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.8

Radius: 4.4

Gravity: 21.32 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.39 AU - 8.21 AU

Year: 11449 Days

Day: 17.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 44,310,051 km

• M1: 55,501 km (0.092 R)
• M2: 268,379 km (0.094 R)
• M3: 519,553 km (0.07 R)
• M4: 887,714 km (0.109 R)
• M5: 1,190,799 km (0.109 R)
• M6: 2,314,578 km (0.103 R)
• M7: 2,483,025 km (0.076 R)
• M8: 2,802,866 km (0.116 R)
• M9: 3,172,223 km (0.091 R)
• M10: 3,824,619 km (0.101 R)
• M11: 5,653,304 km (0.082 R)
• M12: 7,140,157 km (0.117 R)
• M13: 7,417,661 km (0.096 R)
• M14: 9,051,718 km (0.096 R)
• M15: 11,547,609 km (0.112 R)
• M16: 12,893,990 km (0.104 R)
• M17: 14,529,843 km (0.079 R)
• M18: 15,169,374 km (0.097 R)
• M19: 16,367,353 km (0.099 R)
• M20: 17,988,097 km (0.097 R)
• M21: 18,133,805 km (0.098 R)
• M22: 21,299,446 km (0.052 R)
• M23: 21,791,623 km (0.087 R)
• M24: 23,748,512 km (0.072 R)
• M25: 29,702,358 km (0.104 R)
• M26: 29,906,110 km (0.068 R)
• M27: 31,464,172 km (0.068 R)
• M28: 35,308,389 km (0.069 R)
• M29: 35,997,436 km (0.117 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 19,567 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit