🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.44 AU - 0.7 AU

Year: 274 Days

Day: 29.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.7

Radius: 11.7

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.56 AU - 0.9 AU

Year: 397 Days

Day: 6.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,730,027 km

• M1: 145,559 km (0.099 R)
• M2: 526,585 km (0.042 R)
• M3: 1,176,886 km (0.114 R)
• M4: 1,580,202 km (0.038 R)
• M5: 2,038,121 km (0.064 R)
• M6: 2,406,282 km (0.114 R)
• M7: 2,848,643 km (0.039 R)
• M8: 3,444,790 km (0.047 R)
• M9: 4,595,048 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.3

Radius: 12.4

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.84 AU - 1.3 AU

Year: 704 Days

Day: 12.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,730,027 km

• M1: 154,235 km (0.051 R)
• M2: 544,985 km (0.111 R)
• M3: 984,055 km (0.098 R)
• M4: 1,380,489 km (0.105 R)
• M5: 2,068,490 km (0.039 R)
• M6: 2,488,261 km (0.065 R)
• M7: 3,036,687 km (0.025 R)
• M8: 3,525,723 km (0.067 R)
• M9: 4,017,002 km (0.071 R)
• M10: 4,594,899 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.7

Radius: 8.7

Gravity: 10.94 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5 AU - 5.84 AU

Year: 8023 Days

Day: 6.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,730,027 km

• M1: 108,159 km (0.102 R)
• M2: 701,016 km (0.099 R)
• M3: 1,248,544 km (0.117 R)
• M4: 2,092,126 km (0.077 R)
• M5: 2,578,618 km (0.1 R)
• M6: 3,412,776 km (0.113 R)
• M7: 3,803,077 km (0.105 R)
• M8: 4,222,998 km (0.118 R)
• M9: 4,910,700 km (0.104 R)
• M10: 5,409,309 km (0.114 R)
• M11: 7,913,578 km (0.116 R)
• M12: 8,687,747 km (0.111 R)
• M13: 10,486,960 km (0.102 R)
• M14: 12,635,485 km (0.082 R)
• M15: 13,571,818 km (0.119 R)
• M16: 14,180,083 km (0.087 R)
• M17: 14,616,460 km (0.105 R)
• M18: 16,046,765 km (0.12 R)
• M19: 19,487,367 km (0.072 R)
• M20: 20,027,116 km (0.091 R)
• M21: 20,576,738 km (0.05 R)
• M22: 25,708,244 km (0.042 R)
• M23: 27,592,280 km (0.1 R)
• M24: 28,077,276 km (0.083 R)
• M25: 29,465,545 km (0.096 R)
• M26: 30,587,977 km (0.12 R)
• M27: 33,135,480 km (0.049 R)
• M28: 33,904,413 km (0.114 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 814.2

Radius: 3.2

Gravity: 79.51 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 7.23 AU - 7.59 AU

Year: 12825 Days

Day: 20.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 55,730,027 km

• M1: 39,793 km (0.074 R)
• M2: 148,551 km (0.116 R)
• M3: 254,316 km (0.101 R)
• M4: 360,830 km (0.036 R)
• M5: 463,753 km (0.083 R)
• M6: 787,782 km (0.091 R)
• M7: 1,129,464 km (0.069 R)
• M8: 1,440,927 km (0.077 R)
• M9: 2,172,759 km (0.105 R)
• M10: 3,148,138 km (0.109 R)
• M11: 3,901,961 km (0.115 R)
• M12: 4,477,315 km (0.101 R)
• M13: 4,605,370 km (0.09 R)
• M14: 5,072,714 km (0.082 R)
• M15: 5,353,509 km (0.034 R)
• M16: 5,946,216 km (0.096 R)
• M17: 6,179,290 km (0.073 R)
• M18: 6,338,163 km (0.076 R)
• M19: 10,114,162 km (0.083 R)
• M20: 10,728,411 km (0.12 R)
• M21: 11,015,789 km (0.115 R)
• M22: 11,847,553 km (0.104 R)
• M23: 12,784,335 km (0.048 R)
• M24: 14,245,756 km (0.071 R)
• M25: 14,662,835 km (0.053 R)
• M26: 15,088,142 km (0.07 R)
• M27: 19,039,770 km (0.095 R)
• M28: 19,801,821 km (0.083 R)
• M29: 22,210,197 km (0.082 R)
• M30: 23,919,652 km (0.104 R)
• M31: 25,817,301 km (0.108 R)
• M32: 27,277,975 km (0.041 R)
• M33: 32,823,568 km (0.102 R)
• M34: 44,435,804 km (0.066 R)
• M35: 44,730,811 km (0.107 R)
• M36: 45,773,657 km (0.107 R)
• M37: 47,907,521 km (0.119 R)
• M38: 50,426,450 km (0.073 R)
• M39: 57,280,875 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 194.2

Radius: 6.1

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 8.77 AU - 13.45 AU

Year: 23545 Days

Day: 21 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,730,027 km

• M1: 75,846 km (0.055 R)
• M2: 291,267 km (0.115 R)
• M3: 744,249 km (0.035 R)
• M4: 1,297,612 km (0.044 R)
• M5: 1,533,827 km (0.116 R)
• M6: 2,039,767 km (0.097 R)
• M7: 2,608,089 km (0.102 R)
• M8: 3,326,608 km (0.105 R)
• M9: 4,752,425 km (0.108 R)
• M10: 5,528,389 km (0.099 R)
• M11: 6,583,503 km (0.107 R)
• M12: 11,390,232 km (0.095 R)
• M13: 13,404,119 km (0.117 R)
• M14: 15,430,572 km (0.107 R)
• M15: 16,442,601 km (0.058 R)
• M16: 16,814,501 km (0.105 R)
• M17: 20,848,707 km (0.115 R)
• M18: 23,743,276 km (0.115 R)
• M19: 27,307,595 km (0.114 R)
• M20: 28,785,024 km (0.12 R)
• M21: 30,314,961 km (0.042 R)
• M22: 30,761,810 km (0.067 R)
• M23: 30,986,805 km (0.086 R)
• M24: 31,554,380 km (0.098 R)
• M25: 32,710,173 km (0.105 R)
• M26: 33,180,209 km (0.073 R)
• M27: 39,442,675 km (0.111 R)
• M28: 42,570,767 km (0.066 R)
• M29: 47,491,639 km (0.085 R)
• M30: 53,750,365 km (0.075 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: 431 - 14,533 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit