🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.51 AU - 0.55 AU

Year: 253 Days

Day: 21.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,606,594 km

• M1: 19,298 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.4

Radius: 12.6

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.54 AU - 0.86 AU

Year: 384 Days

Day: 13.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 59.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 51,606,594 km

• M1: 156,779 km (0.11 R)
• M2: 565,630 km (0.071 R)
• M3: 986,448 km (0.036 R)
• M4: 1,787,246 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.2

Radius: 14.2

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.78 AU - 1.14 AU

Year: 617 Days

Day: 13.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,606,594 km

• M1: 176,675 km (0.111 R)
• M2: 688,001 km (0.08 R)
• M3: 1,157,289 km (0.11 R)
• M4: 1,712,746 km (0.111 R)
• M5: 2,844,005 km (0.086 R)
• M6: 3,721,696 km (0.105 R)
• M7: 4,368,557 km (0.065 R)
• M8: 5,203,762 km (0.119 R)
• M9: 5,694,742 km (0.1 R)
• M10: 6,179,888 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.1

Radius: 9.6

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.05 AU - 1.19 AU

Year: 778 Days

Day: 12.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,606,594 km

• M1: 119,379 km (0.04 R)
• M2: 461,061 km (0.084 R)
• M3: 851,810 km (0.059 R)
• M4: 1,167,911 km (0.06 R)
• M5: 1,494,333 km (0.112 R)
• M6: 1,900,342 km (0.049 R)
• M7: 2,421,840 km (0.066 R)
• M8: 3,137,516 km (0.117 R)
• M9: 4,172,285 km (0.112 R)
• M10: 4,897,535 km (0.107 R)
• M11: 5,364,280 km (0.118 R)
• M12: 5,782,107 km (0.112 R)
• M13: 6,345,343 km (0.11 R)
• M14: 6,748,061 km (0.068 R)
• M15: 8,206,939 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.3

Radius: 9.8

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.06 AU - 1.36 AU

Year: 873 Days

Day: 13.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,606,594 km

• M1: 121,922 km (0.053 R)
• M2: 453,880 km (0.069 R)
• M3: 1,010,982 km (0.055 R)
• M4: 1,526,048 km (0.105 R)
• M5: 2,159,445 km (0.061 R)
• M6: 2,548,400 km (0.087 R)
• M7: 3,239,691 km (0.092 R)
• M8: 3,637,023 km (0.078 R)
• M9: 4,005,483 km (0.057 R)
• M10: 4,563,184 km (0.108 R)
• M11: 5,620,093 km (0.097 R)
• M12: 5,972,994 km (0.088 R)
• M13: 7,280,928 km (0.032 R)
• M14: 7,917,019 km (0.097 R)
• M15: 8,261,243 km (0.119 R)
• M16: 8,615,491 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.1

Radius: 12.7

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.93 AU - 3.07 AU

Year: 2593 Days

Day: 5.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,606,594 km

• M1: 157,975 km (0.092 R)
• M2: 647,908 km (0.057 R)
• M3: 1,184,067 km (0.047 R)
• M4: 1,606,681 km (0.096 R)
• M5: 2,254,739 km (0.083 R)
• M6: 3,364,905 km (0.117 R)
• M7: 3,873,837 km (0.084 R)
• M8: 4,452,182 km (0.109 R)
• M9: 5,067,478 km (0.081 R)
• M10: 9,276,115 km (0.086 R)
• M11: 10,745,166 km (0.113 R)
• M12: 11,221,635 km (0.116 R)

Asteroid Belt

Center: 3.07 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.4

Radius: 13.2

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.33 AU - 3.95 AU

Year: 4556 Days

Day: 7.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,606,594 km

• M1: 164,258 km (0.095 R)
• M2: 584,628 km (0.099 R)
• M3: 1,047,035 km (0.107 R)
• M4: 1,595,012 km (0.074 R)
• M5: 2,082,702 km (0.113 R)
• M6: 2,636,662 km (0.12 R)
• M7: 3,268,713 km (0.117 R)
• M8: 3,823,871 km (0.109 R)
• M9: 4,563,034 km (0.11 R)
• M10: 5,907,022 km (0.108 R)
• M11: 6,419,693 km (0.109 R)
• M12: 9,085,677 km (0.101 R)
• M13: 10,147,074 km (0.048 R)
• M14: 11,108,240 km (0.06 R)
• M15: 12,564,576 km (0.108 R)
• M16: 18,766,006 km (0.049 R)
• M17: 22,160,980 km (0.106 R)
• M18: 24,383,855 km (0.047 R)
• M19: 27,407,975 km (0.061 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288.7

Radius: 7.3

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 5.36 AU - 7.78 AU

Year: 11047 Days

Day: 18 Hours

Environment

Temp: -218 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 51,606,594 km

• M1: 90,806 km (0.097 R)
• M2: 383,719 km (0.107 R)
• M3: 726,148 km (0.03 R)
• M4: 1,691,653 km (0.089 R)
• M5: 2,434,257 km (0.118 R)
• M6: 3,115,824 km (0.11 R)
• M7: 3,943,101 km (0.075 R)
• M8: 5,478,124 km (0.117 R)
• M9: 5,892,361 km (0.059 R)
• M10: 6,396,057 km (0.112 R)
• M11: 7,186,383 km (0.111 R)
• M12: 8,325,421 km (0.079 R)
• M13: 8,617,436 km (0.034 R)
• M14: 10,371,920 km (0.072 R)
• M15: 11,206,526 km (0.108 R)
• M16: 12,191,329 km (0.073 R)
• M17: 14,332,074 km (0.1 R)
• M18: 15,869,791 km (0.098 R)
• M19: 16,384,408 km (0.114 R)
• M20: 17,176,828 km (0.107 R)
• M21: 18,483,565 km (0.117 R)
• M22: 21,138,927 km (0.052 R)
• M23: 21,998,516 km (0.069 R)
• M24: 30,023,245 km (0.114 R)
• M25: 30,414,893 km (0.111 R)
• M26: 31,610,479 km (0.042 R)
• M27: 34,095,000 km (0.048 R)
• M28: 35,384,833 km (0.071 R)
• M29: 36,373,226 km (0.054 R)
• M30: 37,492,966 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.4

Radius: 7.7

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 7.12 AU - 7.54 AU

Year: 13019 Days

Day: 17.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 51,606,594 km

• M1: 95,743 km (0.103 R)
• M2: 1,054,366 km (0.078 R)
• M3: 1,431,652 km (0.113 R)
• M4: 2,539,274 km (0.116 R)
• M5: 2,989,713 km (0.071 R)
• M6: 4,277,602 km (0.089 R)
• M7: 4,665,658 km (0.099 R)
• M8: 4,979,964 km (0.108 R)
• M9: 5,581,497 km (0.08 R)
• M10: 6,495,988 km (0.059 R)
• M11: 6,888,533 km (0.048 R)
• M12: 7,255,347 km (0.099 R)
• M13: 7,678,111 km (0.099 R)
• M14: 9,190,396 km (0.104 R)
• M15: 9,435,736 km (0.091 R)
• M16: 10,146,176 km (0.055 R)
• M17: 10,567,743 km (0.104 R)
• M18: 11,903,054 km (0.11 R)
• M19: 13,285,039 km (0.03 R)
• M20: 14,241,867 km (0.107 R)
• M21: 14,504,710 km (0.091 R)
• M22: 16,507,676 km (0.059 R)
• M23: 16,870,750 km (0.091 R)
• M24: 19,725,377 km (0.11 R)
• M25: 20,632,538 km (0.071 R)
• M26: 21,567,226 km (0.114 R)
• M27: 22,976,587 km (0.056 R)
• M28: 23,338,315 km (0.088 R)
• M29: 25,204,399 km (0.113 R)
• M30: 28,186,632 km (0.065 R)
• M31: 29,869,459 km (0.079 R)
• M32: 39,041,005 km (0.099 R)
• M33: 40,864,154 km (0.101 R)
• M34: 41,931,086 km (0.032 R)
• M35: 42,200,662 km (0.118 R)
• M36: 47,108,369 km (0.071 R)
• M37: 48,577,271 km (0.061 R)
• M38: 48,874,821 km (0.11 R)
• M39: 51,452,243 km (0.1 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 11,749 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit