🌌 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 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.5

Radius: 14.8

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.49 AU - 0.55 AU

Year: 259 Days

Day: 12.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,663,951 km

• M1: 184,005 km (0.075 R)
• M2: 664,065 km (0.098 R)
• M3: 1,221,766 km (0.05 R)
• M4: 1,745,358 km (0.067 R)
• M5: 2,443,083 km (0.12 R)
• M6: 3,062,717 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.7

Radius: 11.3

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.6 AU - 0.86 AU

Year: 431 Days

Day: 12.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,663,951 km

• M1: 140,472 km (0.083 R)
• M2: 651,648 km (0.087 R)
• M3: 1,059,153 km (0.063 R)
• M4: 1,664,725 km (0.071 R)
• M5: 2,055,026 km (0.068 R)
• M6: 2,649,378 km (0.096 R)
• M7: 3,177,459 km (0.089 R)
• M8: 3,539,934 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.7

Radius: 12

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.14 AU - 1.54 AU

Year: 1071 Days

Day: 5.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,663,951 km

• M1: 151,094 km (0.073 R)
• M2: 548,725 km (0.106 R)
• M3: 1,269,637 km (0.043 R)
• M4: 1,815,221 km (0.1 R)
• M5: 2,525,661 km (0.092 R)
• M6: 2,902,647 km (0.115 R)
• M7: 3,582,719 km (0.087 R)
• M8: 5,242,358 km (0.077 R)
• M9: 6,004,111 km (0.091 R)
• M10: 6,793,838 km (0.085 R)
• M11: 7,651,333 km (0.06 R)
• M12: 9,030,924 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.3

Radius: 9.8

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.73 AU - 2.09 AU

Year: 1822 Days

Day: 12.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,663,951 km

• M1: 125,812 km (0.084 R)
• M2: 438,172 km (0.081 R)
• M3: 867,668 km (0.102 R)
• M4: 1,369,718 km (0.036 R)
• M5: 2,413,762 km (0.09 R)
• M6: 2,864,799 km (0.094 R)
• M7: 3,720,050 km (0.097 R)
• M8: 4,198,464 km (0.115 R)
• M9: 5,012,875 km (0.091 R)
• M10: 7,130,583 km (0.076 R)
• M11: 7,897,870 km (0.105 R)
• M12: 9,226,449 km (0.07 R)
• M13: 10,867,537 km (0.072 R)
• M14: 11,176,158 km (0.079 R)
• M15: 11,561,372 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.8

Radius: 12.6

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.71 AU - 3.09 AU

Year: 3409 Days

Day: 7.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,663,951 km

• M1: 157,676 km (0.094 R)
• M2: 601,533 km (0.117 R)
• M3: 1,104,032 km (0.026 R)
• M4: 2,102,748 km (0.08 R)
• M5: 3,487,575 km (0.044 R)
• M6: 4,441,561 km (0.113 R)
• M7: 5,606,330 km (0.1 R)
• M8: 6,154,008 km (0.056 R)
• M9: 6,563,307 km (0.045 R)
• M10: 8,014,407 km (0.106 R)
• M11: 11,009,057 km (0.088 R)
• M12: 12,129,545 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.1

Radius: 12.3

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.37 AU - 3.77 AU

Year: 3713 Days

Day: 12.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,663,951 km

• M1: 153,039 km (0.051 R)
• M2: 700,118 km (0.098 R)
• M3: 1,161,777 km (0.08 R)
• M4: 1,663,678 km (0.089 R)
• M5: 3,412,477 km (0.086 R)
• M6: 4,082,825 km (0.038 R)
• M7: 4,718,915 km (0.109 R)
• M8: 6,019,070 km (0.07 R)
• M9: 6,783,366 km (0.078 R)
• M10: 7,744,383 km (0.116 R)
• M11: 9,164,366 km (0.119 R)
• M12: 9,661,330 km (0.071 R)
• M13: 10,176,395 km (0.094 R)
• M14: 10,626,236 km (0.026 R)
• M15: 11,966,334 km (0.106 R)
• M16: 12,560,686 km (0.074 R)
• M17: 13,957,781 km (0.105 R)
• M18: 14,668,221 km (0.039 R)
• M19: 16,774,858 km (0.105 R)
• M20: 17,173,237 km (0.069 R)
• M21: 18,953,003 km (0.1 R)
• M22: 20,142,007 km (0.117 R)
• M23: 20,657,372 km (0.073 R)
• M24: 23,864,301 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.7

Radius: 9.4

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.58 AU - 3.84 AU

Year: 4933 Days

Day: 13.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 27,663,951 km

• M1: 127,607 km (0.057 R)
• M2: 695,331 km (0.101 R)
• M3: 1,000,959 km (0.094 R)
• M4: 1,584,541 km (0.034 R)
• M5: 2,350,482 km (0.098 R)
• M6: 2,766,364 km (0.047 R)
• M7: 3,325,860 km (0.072 R)
• M8: 3,643,307 km (0.091 R)
• M9: 4,202,503 km (0.085 R)
• M10: 4,550,468 km (0.119 R)
• M11: 4,968,295 km (0.105 R)
• M12: 5,994,985 km (0.12 R)
• M13: 7,060,421 km (0.063 R)
• M14: 7,723,439 km (0.075 R)
• M15: 9,173,341 km (0.108 R)
• M16: 9,562,595 km (0.071 R)
• M17: 11,363,305 km (0.106 R)
• M18: 12,041,432 km (0.074 R)
• M19: 13,982,165 km (0.076 R)
• M20: 14,290,337 km (0.115 R)
• M21: 14,655,505 km (0.062 R)
• M22: 14,973,400 km (0.087 R)
• M23: 16,066,811 km (0.115 R)
• M24: 16,575,743 km (0.06 R)
• M25: 19,283,764 km (0.103 R)
• M26: 20,975,865 km (0.085 R)
• M27: 22,906,576 km (0.031 R)
• M28: 23,263,366 km (0.072 R)
• M29: 24,727,930 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114.3

Radius: 3.3

Gravity: 10.5 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 6.06 AU - 6.4 AU

Year: 10734 Days

Day: 16.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 27,663,951 km

• M1: 40,990 km (0.078 R)
• M2: 181,612 km (0.11 R)
• M3: 381,475 km (0.074 R)
• M4: 855,999 km (0.114 R)
• M5: 980,614 km (0.104 R)
• M6: 1,245,851 km (0.062 R)
• M7: 1,362,238 km (0.049 R)
• M8: 1,521,111 km (0.053 R)
• M9: 1,642,136 km (0.087 R)
• M10: 1,944,772 km (0.056 R)
• M11: 4,060,984 km (0.117 R)
• M12: 4,788,927 km (0.096 R)
• M13: 5,292,473 km (0.108 R)
• M14: 5,458,527 km (0.099 R)
• M15: 7,453,265 km (0.056 R)
• M16: 8,237,906 km (0.107 R)
• M17: 8,688,345 km (0.042 R)
• M18: 9,637,992 km (0.07 R)
• M19: 10,964,477 km (0.096 R)
• M20: 11,279,979 km (0.117 R)
• M21: 16,180,506 km (0.105 R)
• M22: 16,530,415 km (0.077 R)
• M23: 17,004,940 km (0.064 R)
• M24: 17,306,080 km (0.102 R)
• M25: 20,583,620 km (0.055 R)
• M26: 21,410,746 km (0.077 R)
• M27: 22,692,501 km (0.096 R)
• M28: 24,556,490 km (0.098 R)
• M29: 25,096,090 km (0.088 R)
• M30: 25,329,762 km (0.119 R)
• M31: 27,581,210 km (0.115 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 15,384 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit