🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.09 AU - 1.39 AU

Year: 504 Days

Day: 13.9 Hours

Environment

Temp: 11 °C

Axial Tilt: 9.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 90,227,796 km

• M1: 615,745 km (0.026 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.39 AU - 1.57 AU

Year: 658 Days

Day: 35.6 Hours

Environment

Temp: -30 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,227,796 km

• M1: 43,234 km (0.089 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.64 AU - 1.88 AU

Year: 853 Days

Day: 16 Hours

Environment

Temp: -54 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,227,796 km

• M1: 30,069 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.57 AU - 2.23 AU

Year: 957 Days

Day: 44.8 Hours

Environment

Temp: -61 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.54 AU - 4.04 AU

Year: 2180 Days

Day: 41.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 13.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 358.8

Radius: 3.2

Gravity: 35.04 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 10.72 AU - 16.04 AU

Year: 17876 Days

Day: 22.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 90,227,796 km

• M1: 39,943 km (0.027 R)
• M2: 286,031 km (0.116 R)
• M3: 388,356 km (0.114 R)
• M4: 949,946 km (0.09 R)
• M5: 1,315,264 km (0.118 R)
• M6: 1,590,824 km (0.106 R)
• M7: 1,817,315 km (0.063 R)
• M8: 2,065,049 km (0.054 R)
• M9: 2,416,006 km (0.098 R)
• M10: 2,805,259 km (0.077 R)
• M11: 2,943,936 km (0.119 R)
• M12: 3,210,071 km (0.059 R)
• M13: 4,046,174 km (0.113 R)
• M14: 4,163,758 km (0.098 R)
• M15: 4,374,840 km (0.043 R)
• M16: 4,984,152 km (0.059 R)
• M17: 5,153,497 km (0.067 R)
• M18: 7,106,198 km (0.101 R)
• M19: 7,277,488 km (0.05 R)
• M20: 7,451,620 km (0.079 R)
• M21: 10,572,082 km (0.12 R)
• M22: 10,964,926 km (0.068 R)
• M23: 12,447,440 km (0.067 R)
• M24: 18,080,548 km (0.098 R)
• M25: 18,641,690 km (0.053 R)
• M26: 21,267,282 km (0.116 R)
• M27: 21,623,026 km (0.078 R)
• M28: 21,802,394 km (0.111 R)
• M29: 25,005,284 km (0.12 R)
• M30: 25,202,903 km (0.119 R)
• M31: 28,293,445 km (0.106 R)
• M32: 29,487,236 km (0.114 R)
• M33: 34,720,469 km (0.066 R)
• M34: 36,976,106 km (0.068 R)
• M35: 41,223,788 km (0.09 R)
• M36: 45,490,768 km (0.111 R)
• M37: 49,109,241 km (0.087 R)
• M38: 52,106,135 km (0.093 R)
• M39: 52,752,248 km (0.111 R)
• M40: 56,741,575 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.9

Radius: 8

Gravity: 14.34 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 13.94 AU - 17.08 AU

Year: 22310 Days

Day: 19.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 90,227,796 km

• M1: 99,483 km (0.05 R)
• M2: 688,898 km (0.06 R)
• M3: 1,284,148 km (0.101 R)
• M4: 2,035,877 km (0.08 R)
• M5: 2,460,735 km (0.076 R)
• M6: 2,810,495 km (0.104 R)
• M7: 3,673,226 km (0.091 R)
• M8: 4,701,861 km (0.059 R)
• M9: 5,445,811 km (0.115 R)
• M10: 6,776,933 km (0.102 R)
• M11: 7,265,370 km (0.108 R)
• M12: 7,672,725 km (0.107 R)
• M13: 8,095,339 km (0.112 R)
• M14: 8,477,861 km (0.087 R)
• M15: 10,964,776 km (0.118 R)
• M16: 12,196,266 km (0.096 R)
• M17: 15,927,536 km (0.051 R)
• M18: 17,958,925 km (0.05 R)
• M19: 20,057,933 km (0.074 R)
• M20: 21,064,128 km (0.078 R)
• M21: 21,579,642 km (0.095 R)
• M22: 23,948,226 km (0.047 R)
• M23: 24,736,906 km (0.096 R)
• M24: 25,310,763 km (0.114 R)
• M25: 33,739,705 km (0.106 R)
• M26: 34,730,492 km (0.108 R)
• M27: 37,517,201 km (0.07 R)
• M28: 41,567,564 km (0.099 R)
• M29: 44,199,588 km (0.103 R)
• M30: 51,447,605 km (0.089 R)
• M31: 54,671,739 km (0.072 R)
• M32: 55,841,145 km (0.083 R)
• M33: 56,432,057 km (0.059 R)
• M34: 60,065,340 km (0.102 R)
• M35: 61,519,432 km (0.096 R)
• M36: 66,242,087 km (0.118 R)
• M37: 70,052,644 km (0.035 R)
• M38: 78,599,768 km (0.114 R)
• M39: 80,088,716 km (0.116 R)
• M40: 81,849,333 km (0.11 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 20,202 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit