🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.54 AU - 0.6 AU

Year: 154 Days

Day: 40.5 Hours

Environment

Temp: 219 °C

Axial Tilt: 19.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 38,130,445 km

• M1: 124,316 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.87 AU - 0.93 AU

Year: 306 Days

Day: 27.1 Hours

Environment

Temp: 152 °C

Axial Tilt: 10.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 38,130,445 km

• M1: 418,425 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.22 AU - 1.58 AU

Year: 593 Days

Day: 28.8 Hours

Environment

Temp: -13 °C

Axial Tilt: 32.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 38,130,445 km

• M1: 391,498 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.35 AU - 1.65 AU

Year: 658 Days

Day: 36.8 Hours

Environment

Temp: -29 °C

Axial Tilt: 49.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,130,445 km

• M1: 44,281 km (0.102 R)
• M2: 455,226 km (0.119 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.62 AU - 2.12 AU

Year: 916 Days

Day: 17.1 Hours

Environment

Temp: -49 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.58 AU - 2.58 AU

Year: 1074 Days

Day: 37.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,130,445 km

• M1: 1,764,208 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305.4

Radius: 7.5

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 11.48 AU - 16.06 AU

Year: 18301 Days

Day: 19.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 38,130,445 km

• M1: 112,647 km (0.066 R)
• M2: 193,729 km (0.085 R)
• M3: 436,227 km (0.093 R)
• M4: 704,756 km (0.062 R)
• M5: 857,196 km (0.055 R)
• M6: 1,239,269 km (0.026 R)
• M7: 1,521,111 km (0.065 R)
• M8: 1,570,030 km (0.103 R)
• M9: 1,771,239 km (0.087 R)
• M10: 2,226,166 km (0.101 R)
• M11: 3,082,015 km (0.083 R)
• M12: 3,366,401 km (0.032 R)
• M13: 4,374,990 km (0.053 R)
• M14: 4,551,665 km (0.06 R)
• M15: 5,207,053 km (0.088 R)
• M16: 5,432,048 km (0.052 R)
• M17: 5,698,632 km (0.118 R)
• M18: 5,775,525 km (0.073 R)
• M19: 6,284,307 km (0.095 R)
• M20: 6,807,302 km (0.111 R)
• M21: 8,678,920 km (0.054 R)
• M22: 10,367,432 km (0.031 R)
• M23: 10,888,631 km (0.062 R)
• M24: 11,857,875 km (0.08 R)
• M25: 11,956,311 km (0.031 R)
• M26: 13,209,791 km (0.114 R)
• M27: 13,260,804 km (0.094 R)
• M28: 13,619,540 km (0.107 R)
• M29: 14,033,627 km (0.074 R)
• M30: 14,189,956 km (0.107 R)
• M31: 14,821,110 km (0.1 R)
• M32: 14,874,217 km (0.118 R)
• M33: 15,622,954 km (0.12 R)
• M34: 15,784,969 km (0.062 R)
• M35: 16,329,206 km (0.102 R)
• M36: 17,885,323 km (0.111 R)
• M37: 17,941,871 km (0.04 R)
• M38: 18,054,967 km (0.096 R)
• M39: 18,968,112 km (0.11 R)
• M40: 20,424,896 km (0.101 R)
• M41: 22,585,090 km (0.042 R)
• M42: 22,707,162 km (0.037 R)
• M43: 24,565,317 km (0.098 R)
• M44: 24,879,771 km (0.025 R)
• M45: 25,069,013 km (0.097 R)
• M46: 26,536,119 km (0.039 R)
• M47: 27,117,606 km (0.099 R)
• M48: 27,312,532 km (0.039 R)
• M49: 27,834,180 km (0.117 R)
• M50: 29,219,456 km (0.061 R)
• M51: 29,352,598 km (0.064 R)
• M52: 30,492,085 km (0.111 R)
• M53: 31,441,284 km (0.103 R)
• M54: 31,577,717 km (0.111 R)
• M55: 31,714,300 km (0.112 R)
• M56: 32,056,580 km (0.028 R)
• M57: 32,537,986 km (0.068 R)
• M58: 34,768,640 km (0.054 R)
• M59: 35,546,698 km (0.1 R)
• M60: 35,688,816 km (0.116 R)
• M61: 36,402,099 km (0.104 R)
• M62: 36,760,535 km (0.073 R)
• M63: 37,480,999 km (0.109 R)
• M64: 39,375,656 km (0.12 R)
• M65: 39,522,710 km (0.096 R)
• M66: 40,112,575 km (0.047 R)
• M67: 41,151,981 km (0.116 R)
• M68: 41,675,124 km (0.076 R)
• M69: 42,350,858 km (0.115 R)
• M70: 45,551,654 km (0.1 R)
• M71: 46,635,790 km (0.101 R)
• M72: 46,869,312 km (0.119 R)
• M73: 47,493,584 km (0.107 R)
• M74: 50,417,026 km (0.076 R)
• M75: 50,656,532 km (0.065 R)
• M76: 51,297,259 km (0.049 R)
• M77: 51,940,680 km (0.114 R)
• M78: 54,622,820 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66

Radius: 3.4

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 15.52 AU - 16.42 AU

Year: 22858 Days

Day: 22.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 38,130,445 km

• M1: 126,709 km (0.026 R)
• M2: 250,128 km (0.065 R)
• M3: 370,105 km (0.055 R)
• M4: 442,810 km (0.082 R)
• M5: 673,490 km (0.073 R)
• M6: 1,157,588 km (0.092 R)
• M7: 1,192,893 km (0.093 R)
• M8: 1,246,749 km (0.083 R)
• M9: 1,356,703 km (0.101 R)
• M10: 1,745,807 km (0.043 R)
• M11: 1,973,645 km (0.087 R)
• M12: 1,994,888 km (0.069 R)
• M13: 4,107,359 km (0.09 R)
• M14: 5,150,206 km (0.073 R)
• M15: 5,297,111 km (0.09 R)
• M16: 6,552,836 km (0.092 R)
• M17: 6,744,022 km (0.11 R)
• M18: 6,776,036 km (0.118 R)
• M19: 8,303,579 km (0.042 R)
• M20: 9,569,776 km (0.108 R)
• M21: 9,859,098 km (0.105 R)
• M22: 10,446,569 km (0.105 R)
• M23: 11,120,956 km (0.1 R)
• M24: 11,578,277 km (0.105 R)
• M25: 12,354,091 km (0.061 R)
• M26: 12,432,630 km (0.119 R)
• M27: 13,833,016 km (0.067 R)
• M28: 14,283,305 km (0.066 R)
• M29: 15,408,880 km (0.102 R)
• M30: 16,866,412 km (0.107 R)
• M31: 17,876,946 km (0.109 R)
• M32: 18,099,248 km (0.093 R)
• M33: 18,367,178 km (0.061 R)
• M34: 18,501,666 km (0.05 R)
• M35: 19,818,277 km (0.117 R)
• M36: 24,781,336 km (0.108 R)
• M37: 24,830,703 km (0.096 R)
• M38: 28,895,278 km (0.085 R)
• M39: 30,577,805 km (0.113 R)
• M40: 33,215,066 km (0.117 R)
• M41: 35,476,985 km (0.09 R)
• M42: 36,598,371 km (0.1 R)
• M43: 36,937,061 km (0.099 R)
• M44: 37,390,193 km (0.106 R)
• M45: 37,731,276 km (0.07 R)

Kuiper Belt

Range: 30.6 - 45.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 17,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit