🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.62 AU - 0.72 AU

Year: 349 Days

Day: 12.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.3

Radius: 10.3

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.98 AU - 1.36 AU

Year: 805 Days

Day: 6.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,340,325 km

• M1: 128,056 km (0.087 R)
• M2: 555,158 km (0.116 R)
• M3: 980,016 km (0.09 R)
• M4: 1,441,675 km (0.116 R)
• M5: 3,168,932 km (0.061 R)
• M6: 5,116,846 km (0.079 R)
• M7: 5,441,772 km (0.095 R)
• M8: 6,076,516 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.6

Radius: 14.6

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.16 AU - 1.32 AU

Year: 878 Days

Day: 6.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,340,325 km

• M1: 181,612 km (0.057 R)
• M2: 818,001 km (0.1 R)
• M3: 1,562,101 km (0.076 R)
• M4: 2,146,281 km (0.045 R)
• M5: 2,804,511 km (0.1 R)
• M6: 4,517,556 km (0.078 R)
• M7: 5,211,092 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.6

Radius: 9.4

Gravity: 10.83 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.66 AU - 1.78 AU

Year: 1434 Days

Day: 7.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,340,325 km

• M1: 116,836 km (0.09 R)
• M2: 439,967 km (0.051 R)
• M3: 922,271 km (0.078 R)
• M4: 1,571,675 km (0.108 R)
• M5: 2,285,107 km (0.086 R)
• M6: 3,047,458 km (0.093 R)
• M7: 3,655,274 km (0.102 R)
• M8: 4,171,985 km (0.106 R)
• M9: 4,595,796 km (0.115 R)
• M10: 5,828,931 km (0.107 R)
• M11: 6,334,722 km (0.102 R)
• M12: 6,662,491 km (0.11 R)
• M13: 7,054,587 km (0.12 R)
• M14: 8,264,684 km (0.057 R)
• M15: 8,966,148 km (0.077 R)
• M16: 13,122,725 km (0.095 R)
• M17: 13,490,736 km (0.057 R)
• M18: 14,162,131 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.7

Radius: 13.6

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.79 AU - 2.01 AU

Year: 1665 Days

Day: 15 Hours

Environment

Temp: -185 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,340,325 km

• M1: 169,644 km (0.108 R)
• M2: 752,028 km (0.077 R)
• M3: 1,513,631 km (0.042 R)
• M4: 2,007,603 km (0.104 R)
• M5: 2,448,618 km (0.102 R)
• M6: 2,927,331 km (0.101 R)
• M7: 3,562,673 km (0.087 R)
• M8: 5,051,023 km (0.05 R)
• M9: 6,505,114 km (0.084 R)
• M10: 7,200,146 km (0.058 R)
• M11: 8,916,332 km (0.076 R)
• M12: 9,743,609 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.1

Radius: 11

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.13 AU - 2.41 AU

Year: 2175 Days

Day: 13.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 59,340,325 km

• M1: 136,732 km (0.116 R)
• M2: 493,972 km (0.115 R)
• M3: 892,950 km (0.113 R)
• M4: 1,244,355 km (0.114 R)
• M5: 1,734,288 km (0.073 R)
• M6: 2,177,696 km (0.063 R)
• M7: 2,711,312 km (0.084 R)
• M8: 3,807,266 km (0.117 R)
• M9: 4,413,436 km (0.059 R)
• M10: 4,920,723 km (0.039 R)
• M11: 5,442,221 km (0.074 R)
• M12: 6,052,879 km (0.108 R)
• M13: 6,708,567 km (0.075 R)
• M14: 7,112,631 km (0.084 R)
• M15: 7,594,186 km (0.101 R)
• M16: 9,171,097 km (0.115 R)
• M17: 9,851,917 km (0.075 R)
• M18: 10,837,917 km (0.115 R)
• M19: 13,005,590 km (0.081 R)
• M20: 13,362,979 km (0.068 R)
• M21: 14,474,940 km (0.109 R)
• M22: 15,151,422 km (0.105 R)
• M23: 19,545,111 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.6

Radius: 11.5

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.83 AU - 2.75 AU

Year: 2203 Days

Day: 11.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,340,325 km

• M1: 149,149 km (0.08 R)
• M2: 506,838 km (0.12 R)
• M3: 1,738,926 km (0.107 R)
• M4: 2,521,472 km (0.115 R)
• M5: 3,762,087 km (0.04 R)
• M6: 4,964,256 km (0.029 R)
• M7: 5,597,055 km (0.116 R)
• M8: 6,209,508 km (0.068 R)
• M9: 7,157,660 km (0.115 R)
• M10: 9,404,919 km (0.114 R)
• M11: 13,728,447 km (0.101 R)
• M12: 14,493,939 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.2

Radius: 12.1

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 4.6 AU - 5.52 AU

Year: 7237 Days

Day: 5.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,340,325 km

• M1: 158,275 km (0.12 R)
• M2: 832,063 km (0.111 R)
• M3: 1,222,215 km (0.115 R)
• M4: 2,170,665 km (0.107 R)
• M5: 3,077,228 km (0.091 R)
• M6: 3,717,058 km (0.115 R)
• M7: 4,220,904 km (0.104 R)
• M8: 5,523,303 km (0.107 R)
• M9: 7,171,572 km (0.066 R)
• M10: 7,622,460 km (0.114 R)
• M11: 8,616,688 km (0.106 R)
• M12: 9,052,616 km (0.074 R)
• M13: 9,811,975 km (0.027 R)
• M14: 11,457,851 km (0.087 R)
• M15: 15,501,481 km (0.089 R)
• M16: 18,672,357 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.5

Radius: 5.3

Gravity: 32.66 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.88 AU - 8.22 AU

Year: 11902 Days

Day: 19.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 59,340,325 km

• M1: 67,020 km (0.06 R)
• M2: 242,947 km (0.115 R)
• M3: 519,105 km (0.101 R)
• M4: 916,437 km (0.06 R)
• M5: 1,367,175 km (0.079 R)
• M6: 1,634,506 km (0.119 R)
• M7: 1,990,100 km (0.069 R)
• M8: 3,581,971 km (0.063 R)
• M9: 4,395,036 km (0.096 R)
• M10: 4,911,448 km (0.078 R)
• M11: 5,115,200 km (0.085 R)
• M12: 5,649,414 km (0.08 R)
• M13: 6,219,980 km (0.112 R)
• M14: 6,539,521 km (0.057 R)
• M15: 7,928,687 km (0.066 R)
• M16: 8,790,969 km (0.119 R)
• M17: 12,116,231 km (0.081 R)
• M18: 12,301,583 km (0.108 R)
• M19: 12,869,157 km (0.12 R)
• M20: 17,813,815 km (0.075 R)
• M21: 21,641,426 km (0.083 R)
• M22: 21,914,592 km (0.082 R)
• M23: 22,654,054 km (0.067 R)
• M24: 25,575,701 km (0.09 R)
• M25: 26,395,348 km (0.094 R)
• M26: 26,602,840 km (0.077 R)
• M27: 27,764,168 km (0.112 R)
• M28: 28,520,535 km (0.102 R)
• M29: 29,512,967 km (0.042 R)
• M30: 34,450,594 km (0.084 R)
• M31: 35,702,429 km (0.036 R)
• M32: 41,711,776 km (0.073 R)
• M33: 42,418,476 km (0.068 R)
• M34: 55,513,675 km (0.091 R)
• M35: 56,025,450 km (0.095 R)
• M36: 57,231,957 km (0.115 R)
• M37: 58,985,393 km (0.03 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: 504 - 15,985 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit