🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.71 AU - 1.17 AU

Year: 319 Days

Day: 35.8 Hours

Environment

Temp: 168 °C

Axial Tilt: 25.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.08 AU - 1.2 AU

Year: 426 Days

Day: 12.8 Hours

Environment

Temp: 27 °C

Axial Tilt: 13.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 60,323,754 km

• M1: 214,075 km (0.062 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.28 AU - 3.4 AU

Year: 2135 Days

Day: 36.2 Hours

Environment

Temp: -107 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.52 AU - 5.3 AU

Year: 3806 Days

Day: 45.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 28.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,323,754 km

• M1: 543,040 km (0.07 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.95 AU - 5.91 AU

Year: 3830 Days

Day: 16.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.6

Radius: 12.6

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.16 AU - 8 AU

Year: 6591 Days

Day: 9.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,323,754 km

• M1: 156,629 km (0.106 R)
• M2: 587,920 km (0.111 R)
• M3: 1,036,264 km (0.111 R)
• M4: 1,762,712 km (0.114 R)
• M5: 2,729,563 km (0.095 R)
• M6: 3,157,562 km (0.063 R)
• M7: 5,373,107 km (0.107 R)
• M8: 6,084,893 km (0.106 R)
• M9: 6,677,301 km (0.093 R)
• M10: 7,156,014 km (0.072 R)
• M11: 7,578,927 km (0.091 R)
• M12: 11,590,843 km (0.119 R)
• M13: 12,175,771 km (0.045 R)
• M14: 14,592,225 km (0.057 R)
• M15: 15,023,965 km (0.117 R)
• M16: 16,770,071 km (0.095 R)
• M17: 18,720,079 km (0.112 R)
• M18: 20,202,444 km (0.114 R)
• M19: 21,207,144 km (0.096 R)
• M20: 22,982,870 km (0.099 R)
• M21: 24,943,201 km (0.115 R)
• M22: 27,384,040 km (0.12 R)
• M23: 27,947,276 km (0.027 R)
• M24: 30,678,933 km (0.066 R)
• M25: 31,696,348 km (0.074 R)
• M26: 35,656,652 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.9

Radius: 6.7

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 14.58 AU - 16.08 AU

Year: 20999 Days

Day: 15 Hours

Environment

Temp: -189 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 60,323,754 km

• M1: 88,712 km (0.061 R)
• M2: 313,408 km (0.098 R)
• M3: 778,956 km (0.109 R)
• M4: 1,001,408 km (0.066 R)
• M5: 1,215,184 km (0.058 R)
• M6: 1,489,097 km (0.082 R)
• M7: 5,218,423 km (0.032 R)
• M8: 5,721,969 km (0.097 R)
• M9: 6,701,087 km (0.057 R)
• M10: 8,541,739 km (0.087 R)
• M11: 11,388,587 km (0.058 R)
• M12: 11,806,563 km (0.112 R)
• M13: 12,358,878 km (0.101 R)
• M14: 12,609,754 km (0.08 R)
• M15: 15,454,208 km (0.036 R)
• M16: 17,650,454 km (0.066 R)
• M17: 18,453,795 km (0.09 R)
• M18: 20,046,713 km (0.092 R)
• M19: 20,480,696 km (0.088 R)
• M20: 24,475,259 km (0.1 R)
• M21: 26,602,391 km (0.114 R)
• M22: 30,530,681 km (0.058 R)
• M23: 34,208,994 km (0.041 R)
• M24: 36,603,757 km (0.091 R)
• M25: 37,513,461 km (0.12 R)
• M26: 38,705,158 km (0.102 R)
• M27: 46,996,470 km (0.106 R)
• M28: 49,950,430 km (0.109 R)
• M29: 51,069,123 km (0.064 R)
• M30: 52,204,571 km (0.111 R)
• M31: 53,855,533 km (0.108 R)
• M32: 55,711,593 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.9

Radius: 6.2

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 12.48 AU - 19.82 AU

Year: 22706 Days

Day: 17.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,323,754 km

• M1: 88,113 km (0.061 R)
• M2: 462,856 km (0.088 R)
• M3: 763,548 km (0.117 R)
• M4: 1,764,656 km (0.083 R)
• M5: 2,812,590 km (0.083 R)
• M6: 4,773,668 km (0.104 R)
• M7: 5,019,158 km (0.101 R)
• M8: 5,370,564 km (0.056 R)
• M9: 5,738,126 km (0.043 R)
• M10: 6,942,388 km (0.113 R)
• M11: 7,665,844 km (0.075 R)
• M12: 8,438,517 km (0.099 R)
• M13: 10,699,240 km (0.118 R)
• M14: 12,624,564 km (0.057 R)
• M15: 13,699,425 km (0.087 R)
• M16: 14,898,901 km (0.096 R)
• M17: 16,373,337 km (0.101 R)
• M18: 20,884,312 km (0.069 R)
• M19: 22,726,609 km (0.091 R)
• M20: 24,312,496 km (0.106 R)
• M21: 27,604,547 km (0.031 R)
• M22: 33,247,678 km (0.056 R)
• M23: 34,598,397 km (0.077 R)
• M24: 41,774,457 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 211.4

Radius: 6.2

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 15.09 AU - 19.73 AU

Year: 25414 Days

Day: 18.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,323,754 km

• M1: 92,152 km (0.105 R)
• M2: 338,091 km (0.082 R)
• M3: 1,330,075 km (0.102 R)
• M4: 2,145,233 km (0.045 R)
• M5: 2,572,635 km (0.098 R)
• M6: 2,864,650 km (0.065 R)
• M7: 3,254,202 km (0.085 R)
• M8: 3,461,844 km (0.047 R)
• M9: 4,833,806 km (0.113 R)
• M10: 5,036,212 km (0.113 R)
• M11: 5,903,132 km (0.107 R)
• M12: 6,493,146 km (0.052 R)
• M13: 7,252,206 km (0.105 R)
• M14: 9,199,671 km (0.025 R)
• M15: 10,600,804 km (0.102 R)
• M16: 13,221,011 km (0.097 R)
• M17: 14,435,596 km (0.082 R)
• M18: 14,785,805 km (0.102 R)
• M19: 17,007,034 km (0.107 R)
• M20: 20,565,070 km (0.059 R)
• M21: 25,493,721 km (0.062 R)
• M22: 31,271,640 km (0.101 R)
• M23: 36,298,128 km (0.119 R)
• M24: 38,531,176 km (0.078 R)
• M25: 38,934,491 km (0.117 R)
• M26: 39,476,784 km (0.067 R)
• M27: 40,854,281 km (0.103 R)
• M28: 45,178,557 km (0.115 R)
• M29: 47,143,525 km (0.105 R)
• M30: 49,007,365 km (0.039 R)
• M31: 52,386,332 km (0.102 R)
• M32: 53,047,106 km (0.086 R)
• M33: 57,128,584 km (0.113 R)

Kuiper Belt

Range: 31.4 - 53.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 19,368 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit