🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.48 AU - 0.54 AU

Year: 239 Days

Day: 39.9 Hours

Environment

Temp: -109 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 37,286,775 km

• M1: 13,015 km (0.064 R)
• M2: 34,258 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.4

Radius: 8.6

Gravity: 12.76 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.85 AU - 0.91 AU

Year: 542 Days

Day: 13.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 57.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,286,775 km

• M1: 106,962 km (0.07 R)
• M2: 379,829 km (0.104 R)
• M3: 676,631 km (0.067 R)
• M4: 944,561 km (0.097 R)
• M5: 1,272,479 km (0.103 R)
• M6: 1,629,270 km (0.062 R)
• M7: 1,909,467 km (0.094 R)
• M8: 2,300,516 km (0.073 R)
• M9: 2,766,813 km (0.077 R)
• M10: 5,306,386 km (0.12 R)
• M11: 5,575,513 km (0.045 R)
• M12: 5,891,613 km (0.069 R)
• M13: 6,298,669 km (0.089 R)
• M14: 7,169,179 km (0.102 R)
• M15: 7,633,531 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.9

Radius: 12.5

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.05 AU - 1.59 AU

Year: 995 Days

Day: 5.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,286,775 km

• M1: 155,432 km (0.05 R)
• M2: 575,204 km (0.097 R)
• M3: 1,091,466 km (0.119 R)
• M4: 1,488,050 km (0.036 R)
• M5: 2,202,081 km (0.079 R)
• M6: 2,597,767 km (0.116 R)
• M7: 3,569,704 km (0.102 R)
• M8: 4,248,430 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.1

Radius: 13.6

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.71 AU - 2.21 AU

Year: 1800 Days

Day: 9.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,286,775 km

• M1: 169,195 km (0.091 R)
• M2: 596,596 km (0.113 R)
• M3: 1,071,121 km (0.115 R)
• M4: 1,986,510 km (0.084 R)
• M5: 2,826,951 km (0.038 R)
• M6: 3,359,819 km (0.038 R)
• M7: 4,338,937 km (0.085 R)
• M8: 6,291,189 km (0.12 R)
• M9: 7,007,015 km (0.066 R)
• M10: 7,697,110 km (0.078 R)
• M11: 8,182,106 km (0.073 R)
• M12: 8,773,616 km (0.074 R)
• M13: 9,303,342 km (0.088 R)
• M14: 11,225,076 km (0.078 R)
• M15: 11,956,460 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.1

Radius: 15

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.97 AU - 3.03 AU

Year: 2593 Days

Day: 5.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,286,775 km

• M1: 186,848 km (0.076 R)
• M2: 975,079 km (0.076 R)
• M3: 1,832,275 km (0.096 R)
• M4: 2,561,714 km (0.091 R)
• M5: 3,543,974 km (0.093 R)
• M6: 4,946,603 km (0.06 R)
• M7: 6,063,052 km (0.078 R)
• M8: 6,718,889 km (0.102 R)
• M9: 7,639,664 km (0.059 R)
• M10: 8,975,872 km (0.083 R)
• M11: 12,374,137 km (0.049 R)
• M12: 13,757,768 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.6

Radius: 11.6

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.24 AU - 3.08 AU

Year: 2846 Days

Day: 14.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 139.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 37,286,775 km

• M1: 145,110 km (0.102 R)
• M2: 589,416 km (0.059 R)
• M3: 1,213,987 km (0.084 R)
• M4: 2,363,946 km (0.06 R)
• M5: 3,724,688 km (0.093 R)
• M6: 4,242,296 km (0.107 R)
• M7: 4,878,686 km (0.039 R)
• M8: 5,270,333 km (0.058 R)
• M9: 5,762,809 km (0.052 R)
• M10: 6,145,181 km (0.093 R)
• M11: 6,961,088 km (0.048 R)
• M12: 8,284,281 km (0.097 R)
• M13: 8,808,173 km (0.09 R)
• M14: 9,961,124 km (0.097 R)
• M15: 12,117,278 km (0.088 R)
• M16: 12,610,502 km (0.077 R)
• M17: 13,399,032 km (0.052 R)
• M18: 15,074,529 km (0.116 R)
• M19: 15,803,519 km (0.1 R)
• M20: 16,176,766 km (0.11 R)
• M21: 16,941,061 km (0.03 R)
• M22: 18,016,520 km (0.072 R)
• M23: 19,744,825 km (0.117 R)
• M24: 20,428,487 km (0.115 R)
• M25: 21,712,037 km (0.111 R)

Asteroid Belt

Center: 4.09 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.9

Radius: 12.9

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 4.27 AU - 6.75 AU

Year: 8485 Days

Day: 10.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 37,286,775 km

• M1: 174,880 km (0.09 R)
• M2: 693,087 km (0.103 R)
• M3: 1,142,928 km (0.096 R)
• M4: 2,246,212 km (0.071 R)
• M5: 2,833,234 km (0.076 R)
• M6: 3,258,690 km (0.109 R)
• M7: 3,845,264 km (0.058 R)
• M8: 4,718,167 km (0.078 R)
• M9: 5,750,542 km (0.047 R)
• M10: 6,785,759 km (0.089 R)
• M11: 7,218,546 km (0.1 R)
• M12: 8,838,541 km (0.101 R)
• M13: 11,426,884 km (0.11 R)
• M14: 12,516,555 km (0.114 R)
• M15: 13,392,301 km (0.052 R)
• M16: 15,083,205 km (0.108 R)
• M17: 16,075,039 km (0.113 R)
• M18: 16,651,739 km (0.11 R)
• M19: 17,846,727 km (0.114 R)
• M20: 21,774,718 km (0.112 R)
• M21: 23,528,604 km (0.052 R)
• M22: 24,022,875 km (0.067 R)
• M23: 30,216,376 km (0.104 R)
• M24: 32,092,184 km (0.047 R)
• M25: 32,802,624 km (0.1 R)
• M26: 36,075,078 km (0.109 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: 414 - 16,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit