🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.4

Radius: 13.3

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.61 AU - 0.71 AU

Year: 358 Days

Day: 11 Hours

Environment

Temp: -146 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 33,933,649 km

• M1: 177,423 km (0.096 R)
• M2: 954,584 km (0.1 R)
• M3: 1,443,919 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.7

Radius: 14.8

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.9 AU - 1.4 AU

Year: 822 Days

Day: 5.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,933,649 km

• M1: 184,005 km (0.079 R)
• M2: 734,526 km (0.075 R)
• M3: 1,232,836 km (0.104 R)
• M4: 1,697,337 km (0.07 R)
• M5: 2,183,680 km (0.055 R)
• M6: 2,651,473 km (0.085 R)
• M7: 4,712,034 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.6

Radius: 12

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.14 AU - 1.74 AU

Year: 1152 Days

Day: 7.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,933,649 km

• M1: 149,448 km (0.088 R)
• M2: 537,356 km (0.115 R)
• M3: 1,368,970 km (0.055 R)
• M4: 2,056,821 km (0.076 R)
• M5: 2,680,794 km (0.104 R)
• M6: 3,086,054 km (0.118 R)
• M7: 3,685,493 km (0.11 R)
• M8: 4,484,645 km (0.086 R)
• M9: 4,963,807 km (0.107 R)
• M10: 5,579,851 km (0.043 R)
• M11: 5,960,578 km (0.085 R)
• M12: 6,680,592 km (0.038 R)
• M13: 7,061,917 km (0.107 R)
• M14: 8,348,608 km (0.107 R)
• M15: 9,338,198 km (0.099 R)
• M16: 10,372,967 km (0.096 R)
• M17: 11,115,271 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.6

Radius: 13.9

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.95 AU - 2.51 AU

Year: 2221 Days

Day: 14.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,933,649 km

• M1: 173,085 km (0.048 R)
• M2: 738,116 km (0.101 R)
• M3: 1,239,568 km (0.101 R)
• M4: 1,716,187 km (0.119 R)
• M5: 2,598,066 km (0.075 R)
• M6: 4,000,995 km (0.116 R)
• M7: 5,009,584 km (0.089 R)
• M8: 5,596,157 km (0.071 R)
• M9: 6,111,971 km (0.095 R)
• M10: 10,067,488 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.8

Radius: 11.9

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.16 AU - 2.6 AU

Year: 2448 Days

Day: 11.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,933,649 km

• M1: 148,251 km (0.106 R)
• M2: 1,314,217 km (0.088 R)
• M3: 2,143,588 km (0.061 R)
• M4: 2,537,928 km (0.113 R)
• M5: 4,127,256 km (0.104 R)
• M6: 4,995,671 km (0.114 R)
• M7: 5,654,052 km (0.064 R)
• M8: 7,094,081 km (0.118 R)
• M9: 8,255,409 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.6

Radius: 14.1

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.96 AU - 3.3 AU

Year: 3693 Days

Day: 8.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 151 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,933,649 km

• M1: 175,478 km (0.105 R)
• M2: 729,140 km (0.116 R)
• M3: 1,219,223 km (0.101 R)
• M4: 1,911,861 km (0.096 R)
• M5: 2,423,186 km (0.107 R)
• M6: 2,941,244 km (0.104 R)
• M7: 3,708,382 km (0.106 R)
• M8: 4,446,647 km (0.025 R)
• M9: 5,032,622 km (0.093 R)
• M10: 6,389,175 km (0.118 R)
• M11: 7,262,827 km (0.116 R)
• M12: 10,246,856 km (0.117 R)
• M13: 11,104,949 km (0.12 R)
• M14: 12,733,023 km (0.095 R)
• M15: 15,127,636 km (0.07 R)
• M16: 17,124,767 km (0.072 R)
• M17: 19,784,019 km (0.036 R)
• M18: 20,600,973 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.9

Radius: 11.1

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.66 AU - 4.22 AU

Year: 4255 Days

Day: 13.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 177.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 33,933,649 km

• M1: 138,079 km (0.109 R)
• M2: 596,746 km (0.108 R)
• M3: 948,151 km (0.081 R)
• M4: 1,772,735 km (0.025 R)
• M5: 2,569,343 km (0.114 R)
• M6: 2,939,000 km (0.117 R)
• M7: 4,401,319 km (0.059 R)
• M8: 4,767,834 km (0.087 R)
• M9: 5,747,999 km (0.059 R)
• M10: 6,187,069 km (0.051 R)
• M11: 6,618,958 km (0.096 R)
• M12: 8,309,115 km (0.065 R)
• M13: 9,125,620 km (0.063 R)
• M14: 11,210,416 km (0.082 R)
• M15: 11,766,770 km (0.091 R)
• M16: 12,118,176 km (0.111 R)
• M17: 13,262,150 km (0.049 R)
• M18: 13,933,396 km (0.097 R)
• M19: 14,778,774 km (0.092 R)
• M20: 16,137,422 km (0.101 R)
• M21: 16,736,711 km (0.114 R)
• M22: 17,691,893 km (0.049 R)
• M23: 18,742,519 km (0.111 R)
• M24: 22,011,382 km (0.086 R)
• M25: 22,411,407 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.3

Radius: 12

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 4.83 AU - 5.65 AU

Year: 7999 Days

Day: 14.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,933,649 km

• M1: 150,346 km (0.075 R)
• M2: 631,453 km (0.031 R)
• M3: 1,153,100 km (0.074 R)
• M4: 1,683,126 km (0.12 R)
• M5: 3,565,067 km (0.07 R)
• M6: 4,888,260 km (0.078 R)
• M7: 5,338,101 km (0.105 R)
• M8: 5,815,617 km (0.078 R)
• M9: 7,669,434 km (0.053 R)
• M10: 8,115,385 km (0.089 R)
• M11: 10,302,955 km (0.105 R)
• M12: 10,886,237 km (0.09 R)
• M13: 11,949,728 km (0.063 R)
• M14: 15,057,774 km (0.053 R)
• M15: 16,586,664 km (0.031 R)
• M16: 18,272,632 km (0.066 R)
• M17: 19,536,584 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 274.4

Radius: 3.5

Gravity: 22.4 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.56 AU - 7.12 AU

Year: 9411 Days

Day: 22.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 33,933,649 km

• M1: 44,580 km (0.064 R)
• M2: 169,794 km (0.115 R)
• M3: 560,394 km (0.115 R)
• M4: 811,718 km (0.117 R)
• M5: 1,043,445 km (0.113 R)
• M6: 1,471,744 km (0.037 R)
• M7: 2,572,335 km (0.055 R)
• M8: 2,719,240 km (0.074 R)
• M9: 3,193,915 km (0.11 R)
• M10: 3,342,316 km (0.1 R)
• M11: 4,104,367 km (0.115 R)
• M12: 4,753,921 km (0.092 R)
• M13: 6,319,762 km (0.081 R)
• M14: 6,452,755 km (0.105 R)
• M15: 6,758,981 km (0.081 R)
• M16: 7,888,296 km (0.075 R)
• M17: 8,437,170 km (0.086 R)
• M18: 9,920,284 km (0.092 R)
• M19: 10,282,161 km (0.105 R)
• M20: 10,699,689 km (0.077 R)
• M21: 14,340,901 km (0.098 R)
• M22: 18,866,535 km (0.085 R)
• M23: 20,563,873 km (0.105 R)
• M24: 21,901,727 km (0.081 R)
• M25: 22,825,194 km (0.051 R)
• M26: 22,981,524 km (0.106 R)
• M27: 25,163,409 km (0.057 R)
• M28: 30,215,180 km (0.099 R)
• M29: 32,431,322 km (0.12 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 207 - 18,405 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit