🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.3

Radius: 11.3

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.65 AU - 0.75 AU

Year: 391 Days

Day: 7.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,931,306 km

• M1: 140,622 km (0.034 R)
• M2: 588,518 km (0.104 R)
• M3: 986,000 km (0.081 R)
• M4: 1,453,343 km (0.1 R)
• M5: 1,824,496 km (0.08 R)
• M6: 2,341,805 km (0.105 R)
• M7: 2,858,666 km (0.086 R)
• M8: 3,815,344 km (0.072 R)
• M9: 4,758,110 km (0.06 R)
• M10: 5,115,649 km (0.118 R)
• M11: 5,745,755 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.9

Radius: 10.8

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.73 AU - 0.75 AU

Year: 424 Days

Day: 10.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 89,931,306 km

• M1: 142,417 km (0.087 R)
• M2: 482,603 km (0.109 R)
• M3: 1,048,232 km (0.102 R)
• M4: 1,426,565 km (0.108 R)
• M5: 1,889,122 km (0.07 R)
• M6: 2,264,014 km (0.095 R)
• M7: 2,750,806 km (0.038 R)
• M8: 3,143,650 km (0.062 R)
• M9: 3,777,945 km (0.1 R)
• M10: 4,583,978 km (0.117 R)
• M11: 5,334,510 km (0.096 R)
• M12: 5,985,261 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.6

Radius: 10.5

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.85 AU - 0.99 AU

Year: 588 Days

Day: 12.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,931,306 km

• M1: 130,599 km (0.095 R)
• M2: 624,122 km (0.119 R)
• M3: 1,047,335 km (0.116 R)
• M4: 1,402,929 km (0.118 R)
• M5: 1,907,822 km (0.066 R)
• M6: 2,289,296 km (0.101 R)
• M7: 3,467,080 km (0.095 R)
• M8: 4,535,209 km (0.09 R)
• M9: 5,221,863 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.8

Radius: 14.5

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.85 AU - 1.03 AU

Year: 608 Days

Day: 11.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,931,306 km

• M1: 180,265 km (0.102 R)
• M2: 705,653 km (0.11 R)
• M3: 1,175,091 km (0.032 R)
• M4: 1,795,025 km (0.063 R)
• M5: 2,767,561 km (0.031 R)
• M6: 3,632,984 km (0.065 R)
• M7: 4,217,164 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.2

Radius: 11.4

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.87 AU - 1.27 AU

Year: 738 Days

Day: 5.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,931,306 km

• M1: 142,268 km (0.07 R)
• M2: 521,349 km (0.065 R)
• M3: 943,215 km (0.054 R)
• M4: 1,397,843 km (0.114 R)
• M5: 1,794,726 km (0.103 R)
• M6: 2,287,800 km (0.032 R)
• M7: 2,718,792 km (0.117 R)
• M8: 3,178,207 km (0.11 R)
• M9: 3,689,383 km (0.111 R)
• M10: 4,477,315 km (0.111 R)
• M11: 4,946,154 km (0.085 R)
• M12: 5,319,251 km (0.105 R)
• M13: 5,749,495 km (0.075 R)
• M14: 6,511,397 km (0.094 R)
• M15: 7,114,875 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 811.9

Radius: 6.2

Gravity: 21.12 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.61 AU - 6.69 AU

Year: 11436 Days

Day: 20.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 89,931,306 km

• M1: 77,342 km (0.061 R)
• M2: 303,983 km (0.048 R)
• M3: 568,472 km (0.11 R)
• M4: 805,285 km (0.1 R)
• M5: 1,543,102 km (0.047 R)
• M6: 1,759,570 km (0.076 R)
• M7: 2,049,790 km (0.053 R)
• M8: 2,951,865 km (0.072 R)
• M9: 4,481,503 km (0.094 R)
• M10: 4,828,122 km (0.115 R)
• M11: 5,091,414 km (0.043 R)
• M12: 6,836,623 km (0.073 R)
• M13: 7,687,835 km (0.089 R)
• M14: 8,047,318 km (0.103 R)
• M15: 8,995,170 km (0.043 R)
• M16: 11,224,328 km (0.094 R)
• M17: 11,512,155 km (0.098 R)
• M18: 13,601,438 km (0.088 R)
• M19: 17,804,391 km (0.072 R)
• M20: 18,038,661 km (0.066 R)
• M21: 22,890,718 km (0.108 R)
• M22: 23,917,558 km (0.114 R)
• M23: 24,202,991 km (0.061 R)
• M24: 28,759,891 km (0.112 R)
• M25: 33,618,830 km (0.095 R)
• M26: 37,827,617 km (0.065 R)
• M27: 38,344,777 km (0.108 R)
• M28: 39,393,158 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 727.3

Radius: 3.7

Gravity: 53.13 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 8.51 AU - 12.83 AU

Year: 23242 Days

Day: 24.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 89,931,306 km

• M1: 46,076 km (0.092 R)
• M2: 166,502 km (0.064 R)
• M3: 291,566 km (0.11 R)
• M4: 445,353 km (0.031 R)
• M5: 643,570 km (0.058 R)
• M6: 795,711 km (0.12 R)
• M7: 1,202,168 km (0.094 R)
• M8: 1,385,875 km (0.088 R)
• M9: 1,501,663 km (0.04 R)
• M10: 1,829,432 km (0.115 R)
• M11: 2,031,090 km (0.095 R)
• M12: 2,503,072 km (0.091 R)
• M13: 2,777,733 km (0.113 R)
• M14: 3,328,104 km (0.067 R)
• M15: 3,506,574 km (0.051 R)
• M16: 4,181,859 km (0.082 R)
• M17: 6,175,251 km (0.062 R)
• M18: 7,965,039 km (0.093 R)
• M19: 8,230,875 km (0.111 R)
• M20: 9,768,891 km (0.116 R)
• M21: 10,894,465 km (0.117 R)
• M22: 11,090,139 km (0.088 R)
• M23: 15,267,809 km (0.061 R)
• M24: 21,591,012 km (0.056 R)
• M25: 26,302,597 km (0.074 R)
• M26: 27,248,654 km (0.079 R)
• M27: 29,586,120 km (0.083 R)
• M28: 37,988,285 km (0.1 R)
• M29: 39,501,767 km (0.058 R)
• M30: 41,212,568 km (0.08 R)
• M31: 41,687,541 km (0.054 R)
• M32: 42,487,291 km (0.105 R)
• M33: 42,648,408 km (0.06 R)
• M34: 47,849,328 km (0.113 R)
• M35: 48,902,497 km (0.112 R)
• M36: 51,970,300 km (0.11 R)
• M37: 52,710,211 km (0.096 R)
• M38: 60,093,913 km (0.033 R)
• M39: 65,955,158 km (0.055 R)
• M40: 69,693,310 km (0.046 R)
• M41: 71,045,525 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 800.9

Radius: 6.3

Gravity: 20.18 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 10.79 AU - 10.87 AU

Year: 23767 Days

Day: 18.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 89,931,306 km

• M1: 83,625 km (0.105 R)
• M2: 446,400 km (0.045 R)
• M3: 1,967,511 km (0.03 R)
• M4: 5,047,731 km (0.089 R)
• M5: 6,593,676 km (0.101 R)
• M6: 8,542,188 km (0.07 R)
• M7: 10,202,874 km (0.094 R)
• M8: 11,377,516 km (0.108 R)
• M9: 12,639,674 km (0.101 R)
• M10: 13,229,538 km (0.118 R)
• M11: 14,070,278 km (0.082 R)
• M12: 14,784,309 km (0.039 R)
• M13: 20,173,871 km (0.091 R)
• M14: 20,473,217 km (0.12 R)
• M15: 21,805,236 km (0.112 R)
• M16: 28,330,994 km (0.083 R)
• M17: 31,831,734 km (0.106 R)
• M18: 36,194,457 km (0.089 R)
• M19: 36,488,865 km (0.109 R)
• M20: 39,990,652 km (0.066 R)
• M21: 42,718,270 km (0.107 R)
• M22: 46,776,561 km (0.093 R)
• M23: 53,144,644 km (0.11 R)
• M24: 65,363,050 km (0.086 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 14,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit