🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.55 AU - 0.79 AU

Year: 354 Days

Day: 45.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,891,694 km

• M1: 16,157 km (0.104 R)
• M2: 111,151 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.3

Radius: 9.8

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.76 AU - 1.18 AU

Year: 617 Days

Day: 12 Hours

Environment

Temp: -160 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,891,694 km

• M1: 122,072 km (0.114 R)
• M2: 433,834 km (0.092 R)
• M3: 811,568 km (0.101 R)
• M4: 1,319,603 km (0.108 R)
• M5: 2,047,247 km (0.088 R)
• M6: 2,361,253 km (0.113 R)
• M7: 2,717,894 km (0.119 R)
• M8: 3,338,127 km (0.077 R)
• M9: 3,713,468 km (0.103 R)
• M10: 4,829,767 km (0.092 R)
• M11: 5,168,457 km (0.114 R)
• M12: 5,539,609 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.5

Radius: 13.3

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.49 AU - 1.55 AU

Year: 1210 Days

Day: 14.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,891,694 km

• M1: 165,455 km (0.083 R)
• M2: 864,077 km (0.062 R)
• M3: 1,470,846 km (0.102 R)
• M4: 2,343,899 km (0.114 R)
• M5: 2,860,162 km (0.047 R)
• M6: 3,793,353 km (0.096 R)
• M7: 5,125,223 km (0.08 R)
• M8: 6,303,007 km (0.105 R)
• M9: 6,771,548 km (0.059 R)
• M10: 7,359,617 km (0.083 R)
• M11: 8,746,838 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.5

Radius: 9

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.43 AU - 1.91 AU

Year: 1393 Days

Day: 7.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,891,694 km

• M1: 112,049 km (0.113 R)
• M2: 424,260 km (0.077 R)
• M3: 745,446 km (0.073 R)
• M4: 1,039,855 km (0.073 R)
• M5: 1,884,784 km (0.112 R)
• M6: 2,704,730 km (0.1 R)
• M7: 3,014,247 km (0.079 R)
• M8: 4,116,784 km (0.106 R)
• M9: 5,677,987 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.8

Radius: 11.7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.01 AU - 4.61 AU

Year: 4802 Days

Day: 5.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,891,694 km

• M1: 146,905 km (0.064 R)
• M2: 785,538 km (0.056 R)
• M3: 1,280,707 km (0.096 R)
• M4: 1,933,852 km (0.082 R)
• M5: 2,511,898 km (0.09 R)
• M6: 3,299,381 km (0.102 R)
• M7: 5,479,920 km (0.1 R)
• M8: 6,688,820 km (0.083 R)
• M9: 9,803,148 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.9

Radius: 12.7

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.71 AU - 4.51 AU

Year: 5380 Days

Day: 11.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,891,694 km

• M1: 157,975 km (0.101 R)
• M2: 585,077 km (0.087 R)
• M3: 1,098,946 km (0.031 R)
• M4: 1,522,308 km (0.084 R)
• M5: 2,251,448 km (0.109 R)
• M6: 2,970,715 km (0.116 R)
• M7: 3,385,101 km (0.044 R)
• M8: 3,815,793 km (0.093 R)
• M9: 4,259,051 km (0.103 R)
• M10: 5,083,784 km (0.087 R)
• M11: 5,710,749 km (0.032 R)
• M12: 6,136,205 km (0.113 R)
• M13: 6,648,279 km (0.06 R)
• M14: 10,345,441 km (0.103 R)
• M15: 12,528,672 km (0.038 R)
• M16: 16,660,116 km (0.04 R)
• M17: 17,092,604 km (0.112 R)
• M18: 23,345,346 km (0.093 R)
• M19: 24,756,503 km (0.056 R)
• M20: 25,483,100 km (0.048 R)
• M21: 25,892,998 km (0.089 R)
• M22: 30,145,168 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632.1

Radius: 6.9

Gravity: 13.28 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 7 AU - 10.28 AU

Year: 16398 Days

Day: 18.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 64,891,694 km

• M1: 85,869 km (0.04 R)
• M2: 351,256 km (0.104 R)
• M3: 712,086 km (0.091 R)
• M4: 1,050,626 km (0.047 R)
• M5: 1,633,908 km (0.031 R)
• M6: 3,448,979 km (0.095 R)
• M7: 3,900,465 km (0.058 R)
• M8: 4,171,537 km (0.081 R)
• M9: 4,585,025 km (0.106 R)
• M10: 5,873,960 km (0.033 R)
• M11: 7,075,082 km (0.12 R)
• M12: 7,993,613 km (0.096 R)
• M13: 8,531,567 km (0.077 R)
• M14: 11,224,627 km (0.08 R)
• M15: 13,126,764 km (0.116 R)
• M16: 23,085,046 km (0.096 R)
• M17: 24,375,477 km (0.025 R)
• M18: 24,986,884 km (0.037 R)
• M19: 25,504,193 km (0.095 R)
• M20: 25,818,049 km (0.08 R)
• M21: 27,425,778 km (0.104 R)
• M22: 27,865,595 km (0.111 R)
• M23: 28,198,451 km (0.07 R)
• M24: 31,554,679 km (0.097 R)
• M25: 40,449,170 km (0.054 R)
• M26: 41,883,813 km (0.085 R)
• M27: 43,500,667 km (0.088 R)
• M28: 49,568,506 km (0.085 R)
• M29: 51,710,000 km (0.113 R)
• M30: 52,718,888 km (0.071 R)
• M31: 57,601,314 km (0.117 R)
• M32: 60,336,711 km (0.028 R)
• M33: 63,924,517 km (0.1 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: 237 - 11,565 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit