🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.61 AU - 0.89 AU

Year: 237 Days

Day: 12.1 Hours

Environment

Temp: 128 °C

Axial Tilt: 42.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.94 AU - 1.52 AU

Year: 498 Days

Day: 39.7 Hours

Environment

Temp: 4 °C

Axial Tilt: 16.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.05 AU - 1.53 AU

Year: 535 Days

Day: 30.3 Hours

Environment

Temp: -2 °C

Axial Tilt: 13.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 95,732,206 km

• M1: 210,035 km (0.109 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.45 AU - 2.21 AU

Year: 904 Days

Day: 30.6 Hours

Environment

Temp: -57 °C

Axial Tilt: 42.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.84 AU - 3.1 AU

Year: 1869 Days

Day: 30.9 Hours

Environment

Temp: -105 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 4.49 AU - 4.99 AU

Year: 3769 Days

Day: 31.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,732,206 km

• M1: 2,605,995 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36

Radius: 12.9

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 5.38 AU - 5.94 AU

Year: 4918 Days

Day: 10.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 95,732,206 km

• M1: 198,816 km (0.047 R)
• M2: 419,323 km (0.11 R)
• M3: 540,946 km (0.071 R)
• M4: 647,759 km (0.071 R)
• M5: 788,231 km (0.075 R)
• M6: 919,728 km (0.111 R)
• M7: 1,016,518 km (0.105 R)
• M8: 1,117,197 km (0.077 R)
• M9: 1,555,369 km (0.067 R)
• M10: 1,882,390 km (0.111 R)
• M11: 2,082,103 km (0.102 R)
• M12: 2,260,274 km (0.077 R)
• M13: 2,482,876 km (0.089 R)
• M14: 2,581,910 km (0.115 R)
• M15: 2,722,980 km (0.12 R)
• M16: 2,866,744 km (0.093 R)
• M17: 3,302,223 km (0.113 R)
• M18: 3,422,650 km (0.044 R)
• M19: 3,511,212 km (0.109 R)
• M20: 3,668,140 km (0.088 R)
• M21: 3,804,423 km (0.116 R)
• M22: 3,977,359 km (0.093 R)
• M23: 4,223,746 km (0.094 R)
• M24: 4,427,050 km (0.097 R)
• M25: 4,609,110 km (0.115 R)
• M26: 5,233,981 km (0.112 R)
• M27: 5,608,723 km (0.049 R)
• M28: 5,700,576 km (0.077 R)
• M29: 5,845,836 km (0.082 R)
• M30: 6,180,486 km (0.103 R)
• M31: 6,411,765 km (0.104 R)
• M32: 6,549,245 km (0.088 R)
• M33: 7,322,367 km (0.113 R)
• M34: 7,991,369 km (0.102 R)
• M35: 8,154,131 km (0.111 R)
• M36: 8,393,039 km (0.078 R)
• M37: 8,740,555 km (0.089 R)
• M38: 9,216,575 km (0.096 R)
• M39: 9,970,100 km (0.115 R)
• M40: 10,776,133 km (0.088 R)
• M41: 10,857,813 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787.3

Radius: 6.1

Gravity: 21.16 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 16.61 AU - 18.03 AU

Year: 26328 Days

Day: 23.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 95,732,206 km

• M1: 812,616 km (0.11 R)
• M2: 1,145,321 km (0.069 R)
• M3: 1,309,729 km (0.075 R)
• M4: 1,697,786 km (0.1 R)
• M5: 1,847,384 km (0.115 R)
• M6: 2,488,261 km (0.069 R)
• M7: 2,788,804 km (0.062 R)
• M8: 3,010,508 km (0.11 R)
• M9: 3,806,368 km (0.064 R)
• M10: 4,303,332 km (0.068 R)
• M11: 4,979,664 km (0.115 R)
• M12: 7,078,672 km (0.066 R)
• M13: 7,320,123 km (0.097 R)
• M14: 9,678,533 km (0.079 R)
• M15: 11,393,075 km (0.1 R)
• M16: 12,904,013 km (0.038 R)
• M17: 13,570,771 km (0.074 R)
• M18: 13,795,467 km (0.112 R)
• M19: 14,096,907 km (0.108 R)
• M20: 15,402,447 km (0.095 R)
• M21: 15,480,537 km (0.091 R)
• M22: 15,872,484 km (0.109 R)
• M23: 16,506,330 km (0.095 R)
• M24: 16,586,215 km (0.058 R)
• M25: 16,746,285 km (0.111 R)
• M26: 17,148,554 km (0.092 R)
• M27: 18,623,140 km (0.089 R)
• M28: 18,872,819 km (0.092 R)
• M29: 20,910,042 km (0.101 R)
• M30: 21,256,361 km (0.117 R)
• M31: 23,105,092 km (0.059 R)
• M32: 23,463,080 km (0.111 R)
• M33: 25,188,392 km (0.057 R)
• M34: 25,372,248 km (0.03 R)
• M35: 26,298,857 km (0.042 R)
• M36: 28,471,616 km (0.111 R)
• M37: 29,822,186 km (0.091 R)
• M38: 30,211,888 km (0.116 R)
• M39: 32,085,751 km (0.103 R)
• M40: 34,506,095 km (0.093 R)
• M41: 34,812,771 km (0.082 R)
• M42: 36,880,064 km (0.102 R)
• M43: 38,774,422 km (0.044 R)
• M44: 38,986,851 km (0.105 R)
• M45: 41,132,383 km (0.025 R)
• M46: 41,566,068 km (0.109 R)
• M47: 41,674,676 km (0.045 R)
• M48: 42,110,305 km (0.103 R)
• M49: 42,656,935 km (0.057 R)
• M50: 43,757,228 km (0.1 R)
• M51: 43,867,780 km (0.085 R)
• M52: 45,313,195 km (0.103 R)
• M53: 45,424,945 km (0.1 R)
• M54: 46,774,168 km (0.115 R)
• M55: 50,088,658 km (0.085 R)
• M56: 50,783,840 km (0.092 R)
• M57: 54,425,949 km (0.12 R)
• M58: 55,021,199 km (0.113 R)
• M59: 55,379,337 km (0.118 R)
• M60: 56,338,409 km (0.109 R)
• M61: 56,699,388 km (0.119 R)
• M62: 57,181,991 km (0.05 R)
• M63: 58,516,105 km (0.073 R)
• M64: 59,370,458 km (0.113 R)
• M65: 59,492,829 km (0.081 R)
• M66: 61,215,000 km (0.083 R)
• M67: 61,958,053 km (0.113 R)
• M68: 64,330,824 km (0.081 R)
• M69: 66,478,900 km (0.066 R)
• M70: 68,778,818 km (0.066 R)
• M71: 69,035,977 km (0.106 R)
• M72: 69,164,631 km (0.11 R)
• M73: 69,293,435 km (0.065 R)
• M74: 69,680,295 km (0.079 R)
• M75: 70,197,155 km (0.109 R)
• M76: 70,715,213 km (0.118 R)
• M77: 71,104,616 km (0.103 R)
• M78: 71,234,616 km (0.096 R)
• M79: 73,587,641 km (0.11 R)
• M80: 74,905,748 km (0.119 R)
• M81: 77,431,708 km (0.061 R)
• M82: 79,176,019 km (0.077 R)
• M83: 79,445,595 km (0.072 R)
• M84: 85,037,264 km (0.11 R)
• M85: 85,727,808 km (0.092 R)
• M86: 86,143,091 km (0.071 R)
• M87: 86,420,296 km (0.091 R)
• M88: 87,114,580 km (0.061 R)
• M89: 89,910,115 km (0.047 R)
• M90: 90,191,210 km (0.1 R)
• M91: 90,895,367 km (0.107 R)
• M92: 91,177,658 km (0.098 R)
• M93: 91,742,839 km (0.101 R)
• M94: 92,167,547 km (0.073 R)
• M95: 93,019,058 km (0.091 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 10,639 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit