🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.1

Radius: 8.2

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.51 AU - 0.59 AU

Year: 272 Days

Day: 15 Hours

Environment

Temp: -151 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,865,970 km

• M1: 102,026 km (0.118 R)
• M2: 374,443 km (0.109 R)
• M3: 673,490 km (0.071 R)
• M4: 946,057 km (0.097 R)
• M5: 1,328,878 km (0.115 R)
• M6: 2,037,673 km (0.109 R)
• M7: 2,303,508 km (0.103 R)
• M8: 2,784,764 km (0.098 R)
• M9: 3,067,804 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.9

Radius: 10

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.57 AU - 0.65 AU

Year: 318 Days

Day: 8.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,865,970 km

• M1: 124,316 km (0.117 R)
• M2: 643,869 km (0.07 R)
• M3: 1,257,968 km (0.107 R)
• M4: 2,169,917 km (0.101 R)
• M5: 2,594,925 km (0.086 R)
• M6: 2,918,954 km (0.066 R)
• M7: 3,292,350 km (0.095 R)
• M8: 4,307,371 km (0.08 R)
• M9: 4,836,649 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453

Radius: 13.1

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.93 AU - 1.19 AU

Year: 728 Days

Day: 6.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,865,970 km

• M1: 164,109 km (0.073 R)
• M2: 667,954 km (0.099 R)
• M3: 1,146,368 km (0.102 R)
• M4: 1,654,403 km (0.102 R)
• M5: 2,063,703 km (0.039 R)
• M6: 2,480,482 km (0.113 R)
• M7: 3,225,629 km (0.095 R)
• M8: 4,187,992 km (0.08 R)
• M9: 4,610,906 km (0.113 R)
• M10: 5,740,669 km (0.075 R)
• M11: 6,206,816 km (0.111 R)
• M12: 6,678,049 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.1

Radius: 14.3

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.95 AU - 1.33 AU

Year: 812 Days

Day: 6.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,865,970 km

• M1: 178,321 km (0.119 R)
• M2: 647,759 km (0.09 R)
• M3: 1,105,528 km (0.116 R)
• M4: 1,635,703 km (0.076 R)
• M5: 2,743,027 km (0.089 R)
• M6: 5,005,246 km (0.041 R)
• M7: 5,472,739 km (0.12 R)
• M8: 6,802,066 km (0.048 R)
• M9: 7,333,886 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.3

Radius: 13.2

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.13 AU - 3.49 AU

Year: 3141 Days

Day: 11.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,865,970 km

• M1: 164,258 km (0.044 R)
• M2: 675,285 km (0.093 R)
• M3: 1,101,938 km (0.099 R)
• M4: 1,983,069 km (0.039 R)
• M5: 3,026,515 km (0.11 R)
• M6: 3,516,747 km (0.054 R)
• M7: 4,943,761 km (0.035 R)
• M8: 7,123,851 km (0.114 R)
• M9: 7,568,755 km (0.103 R)
• M10: 10,157,546 km (0.08 R)
• M11: 11,054,385 km (0.093 R)
• M12: 13,005,889 km (0.065 R)
• M13: 14,162,430 km (0.097 R)
• M14: 15,597,074 km (0.115 R)
• M15: 16,186,490 km (0.079 R)
• M16: 18,574,820 km (0.087 R)
• M17: 19,055,029 km (0.067 R)
• M18: 21,124,416 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.4

Radius: 13.2

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.57 AU - 3.33 AU

Year: 3379 Days

Day: 10.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 34,865,970 km

• M1: 164,258 km (0.105 R)
• M2: 692,788 km (0.03 R)
• M3: 1,166,564 km (0.026 R)
• M4: 1,886,579 km (0.074 R)
• M5: 2,392,369 km (0.05 R)
• M6: 2,871,681 km (0.083 R)
• M7: 3,304,916 km (0.101 R)
• M8: 3,761,938 km (0.12 R)
• M9: 4,757,960 km (0.098 R)
• M10: 5,343,636 km (0.096 R)
• M11: 5,814,271 km (0.104 R)
• M12: 8,183,452 km (0.094 R)
• M13: 11,178,551 km (0.095 R)
• M14: 11,733,410 km (0.09 R)
• M15: 12,261,939 km (0.091 R)
• M16: 12,806,176 km (0.081 R)
• M17: 13,272,173 km (0.092 R)
• M18: 16,968,438 km (0.088 R)
• M19: 17,759,661 km (0.092 R)
• M20: 19,598,817 km (0.082 R)
• M21: 20,850,951 km (0.032 R)
• M22: 21,366,465 km (0.113 R)
• M23: 21,824,534 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.6

Radius: 13.2

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.65 AU - 5.89 AU

Year: 6947 Days

Day: 6.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,865,970 km

• M1: 164,109 km (0.06 R)
• M2: 620,233 km (0.075 R)
• M3: 1,220,719 km (0.066 R)
• M4: 2,174,255 km (0.068 R)
• M5: 2,731,956 km (0.103 R)
• M6: 3,684,596 km (0.084 R)
• M7: 4,738,513 km (0.04 R)
• M8: 5,490,691 km (0.109 R)
• M9: 7,379,065 km (0.072 R)
• M10: 10,243,415 km (0.101 R)
• M11: 13,337,099 km (0.035 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.3

Radius: 7.7

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.81 AU - 9.27 AU

Year: 13807 Days

Day: 23.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 34,865,970 km

• M1: 95,743 km (0.106 R)
• M2: 373,995 km (0.075 R)
• M3: 1,141,581 km (0.112 R)
• M4: 1,462,319 km (0.101 R)
• M5: 1,772,735 km (0.107 R)
• M6: 3,893,135 km (0.111 R)
• M7: 4,520,698 km (0.081 R)
• M8: 5,570,875 km (0.045 R)
• M9: 6,007,850 km (0.043 R)
• M10: 7,681,551 km (0.105 R)
• M11: 8,342,475 km (0.031 R)
• M12: 10,183,277 km (0.104 R)
• M13: 11,369,737 km (0.06 R)
• M14: 12,435,473 km (0.119 R)
• M15: 14,764,412 km (0.112 R)
• M16: 15,119,258 km (0.081 R)
• M17: 15,723,335 km (0.099 R)
• M18: 16,031,506 km (0.111 R)
• M19: 20,777,947 km (0.075 R)
• M20: 25,953,585 km (0.117 R)
• M21: 26,470,745 km (0.06 R)
• M22: 31,633,667 km (0.118 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 19,816 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit