🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.2

Radius: 14.5

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.42 AU - 0.62 AU

Year: 250 Days

Day: 13 Hours

Environment

Temp: -137 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,880,859 km

• M1: 183,108 km (0.095 R)
• M2: 281,394 km (0.08 R)
• M3: 375,640 km (0.086 R)
• M4: 516,711 km (0.102 R)
• M5: 643,121 km (0.091 R)
• M6: 779,255 km (0.115 R)
• M7: 882,927 km (0.096 R)
• M8: 978,071 km (0.118 R)
• M9: 1,069,924 km (0.1 R)
• M10: 1,176,288 km (0.11 R)
• M11: 1,267,244 km (0.112 R)
• M12: 1,444,816 km (0.104 R)
• M13: 1,543,102 km (0.077 R)
• M14: 1,639,443 km (0.043 R)
• M15: 1,847,833 km (0.079 R)
• M16: 1,959,882 km (0.04 R)
• M17: 2,116,211 km (0.087 R)
• M18: 2,281,517 km (0.094 R)
• M19: 2,441,587 km (0.072 R)
• M20: 2,560,368 km (0.048 R)
• M21: 2,655,961 km (0.082 R)
• M22: 2,819,621 km (0.074 R)
• M23: 2,949,771 km (0.068 R)
• M24: 3,200,347 km (0.087 R)
• M25: 3,341,867 km (0.089 R)
• M26: 3,435,665 km (0.108 R)
• M27: 3,586,459 km (0.087 R)
• M28: 3,705,390 km (0.039 R)
• M29: 3,796,794 km (0.05 R)
• M30: 3,889,096 km (0.069 R)
• M31: 4,005,333 km (0.056 R)
• M32: 4,117,083 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.6

Radius: 10.6

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.21 AU - 1.21 AU

Year: 888 Days

Day: 6.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 71,880,859 km

• M1: 133,142 km (0.109 R)
• M2: 206,894 km (0.098 R)
• M3: 315,801 km (0.116 R)
• M4: 416,480 km (0.095 R)
• M5: 517,459 km (0.087 R)
• M6: 594,801 km (0.04 R)
• M7: 681,867 km (0.092 R)
• M8: 784,192 km (0.032 R)
• M9: 914,342 km (0.114 R)
• M10: 993,928 km (0.111 R)
• M11: 1,064,090 km (0.052 R)
• M12: 1,234,930 km (0.081 R)
• M13: 1,310,926 km (0.098 R)
• M14: 1,521,859 km (0.049 R)
• M15: 1,631,664 km (0.083 R)
• M16: 1,962,126 km (0.111 R)
• M17: 2,135,360 km (0.029 R)
• M18: 2,298,122 km (0.105 R)
• M19: 2,385,039 km (0.103 R)
• M20: 2,473,002 km (0.1 R)
• M21: 2,652,370 km (0.069 R)
• M22: 2,785,662 km (0.117 R)
• M23: 2,981,186 km (0.066 R)
• M24: 3,512,408 km (0.113 R)
• M25: 3,613,088 km (0.029 R)
• M26: 3,733,215 km (0.066 R)
• M27: 3,807,864 km (0.108 R)
• M28: 3,882,962 km (0.114 R)
• M29: 3,977,658 km (0.067 R)
• M30: 4,305,277 km (0.103 R)
• M31: 4,541,791 km (0.063 R)
• M32: 4,722,057 km (0.056 R)
• M33: 4,853,703 km (0.072 R)
• M34: 5,069,124 km (0.041 R)
• M35: 5,152,001 km (0.097 R)
• M36: 5,456,134 km (0.038 R)
• M37: 5,573,119 km (0.096 R)
• M38: 5,733,937 km (0.096 R)
• M39: 5,874,559 km (0.092 R)
• M40: 5,961,625 km (0.108 R)
• M41: 6,049,139 km (0.05 R)
• M42: 6,359,106 km (0.037 R)
• M43: 6,515,885 km (0.1 R)
• M44: 6,765,115 km (0.1 R)
• M45: 6,845,000 km (0.115 R)
• M46: 7,005,818 km (0.086 R)
• M47: 7,086,750 km (0.101 R)
• M48: 7,214,507 km (0.109 R)
• M49: 7,284,519 km (0.09 R)
• M50: 7,472,414 km (0.095 R)
• M51: 7,590,596 km (0.1 R)
• M52: 7,757,098 km (0.096 R)
• M53: 7,900,862 km (0.116 R)
• M54: 8,045,373 km (0.089 R)
• M55: 8,118,078 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46

Radius: 14.7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.37 AU - 1.76 AU

Year: 1299 Days

Day: 12.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 71,880,859 km

• M1: 192,532 km (0.093 R)
• M2: 291,716 km (0.06 R)
• M3: 411,095 km (0.073 R)
• M4: 562,937 km (0.106 R)
• M5: 659,577 km (0.061 R)
• M6: 770,279 km (0.083 R)
• M7: 942,616 km (0.101 R)
• M8: 1,066,782 km (0.056 R)
• M9: 1,171,351 km (0.089 R)
• M10: 1,292,974 km (0.08 R)
• M11: 1,526,347 km (0.08 R)
• M12: 1,694,944 km (0.063 R)
• M13: 2,093,622 km (0.072 R)
• M14: 2,265,959 km (0.072 R)
• M15: 2,387,283 km (0.062 R)
• M16: 2,550,644 km (0.081 R)
• M17: 2,700,391 km (0.104 R)
• M18: 2,829,494 km (0.083 R)
• M19: 2,924,788 km (0.097 R)
• M20: 3,081,866 km (0.066 R)
• M21: 3,329,151 km (0.115 R)
• M22: 3,436,263 km (0.1 R)
• M23: 3,699,555 km (0.053 R)
• M24: 3,856,932 km (0.066 R)
• M25: 4,009,672 km (0.052 R)
• M26: 4,411,192 km (0.086 R)
• M27: 4,557,200 km (0.111 R)
• M28: 4,775,912 km (0.075 R)
• M29: 4,933,139 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.7

Radius: 13

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.79 AU - 1.83 AU

Year: 1624 Days

Day: 14.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 71,880,859 km

• M1: 181,013 km (0.114 R)
• M2: 265,686 km (0.09 R)
• M3: 359,484 km (0.09 R)
• M4: 487,390 km (0.095 R)
• M5: 604,974 km (0.116 R)
• M6: 839,693 km (0.084 R)
• M7: 1,001,408 km (0.034 R)
• M8: 1,174,343 km (0.088 R)
• M9: 1,308,832 km (0.051 R)
• M10: 1,602,941 km (0.059 R)
• M11: 1,699,881 km (0.077 R)
• M12: 1,927,868 km (0.057 R)
• M13: 2,234,693 km (0.116 R)
• M14: 2,383,992 km (0.052 R)
• M15: 2,516,236 km (0.059 R)
• M16: 3,203,040 km (0.119 R)
• M17: 3,475,308 km (0.088 R)
• M18: 3,625,953 km (0.072 R)
• M19: 3,802,628 km (0.112 R)
• M20: 4,152,238 km (0.088 R)
• M21: 4,238,257 km (0.09 R)
• M22: 4,424,507 km (0.092 R)
• M23: 4,600,883 km (0.064 R)
• M24: 4,754,071 km (0.084 R)
• M25: 4,934,785 km (0.091 R)
• M26: 5,504,304 km (0.085 R)
• M27: 5,585,386 km (0.117 R)
• M28: 5,872,614 km (0.098 R)
• M29: 6,025,054 km (0.12 R)
• M30: 6,235,090 km (0.119 R)
• M31: 6,475,942 km (0.111 R)
• M32: 6,590,385 km (0.066 R)
• M33: 6,705,575 km (0.115 R)
• M34: 7,172,919 km (0.082 R)
• M35: 7,350,940 km (0.12 R)
• M36: 7,650,884 km (0.119 R)
• M37: 7,741,690 km (0.099 R)
• M38: 8,046,869 km (0.118 R)
• M39: 8,139,171 km (0.101 R)
• M40: 8,606,216 km (0.12 R)
• M41: 9,034,066 km (0.085 R)
• M42: 9,664,471 km (0.118 R)
• M43: 9,746,301 km (0.059 R)
• M44: 9,828,281 km (0.091 R)
• M45: 9,943,621 km (0.08 R)
• M46: 10,026,348 km (0.057 R)
• M47: 10,392,714 km (0.066 R)
• M48: 10,543,808 km (0.12 R)
• M49: 10,628,031 km (0.088 R)
• M50: 10,780,471 km (0.113 R)
• M51: 11,121,405 km (0.105 R)
• M52: 11,207,274 km (0.119 R)
• M53: 11,622,259 km (0.086 R)
• M54: 11,726,827 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.1

Radius: 14.4

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.73 AU - 2.23 AU

Year: 1858 Days

Day: 9.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 71,880,859 km

• M1: 219,011 km (0.115 R)
• M2: 310,266 km (0.088 R)
• M3: 437,424 km (0.039 R)
• M4: 597,344 km (0.106 R)
• M5: 727,345 km (0.062 R)
• M6: 868,715 km (0.099 R)
• M7: 968,646 km (0.108 R)
• M8: 1,136,046 km (0.053 R)
• M9: 1,256,473 km (0.098 R)
• M10: 1,411,157 km (0.051 R)
• M11: 1,719,328 km (0.085 R)
• M12: 1,826,889 km (0.115 R)
• M13: 1,925,923 km (0.116 R)
• M14: 2,038,121 km (0.06 R)
• M15: 2,424,533 km (0.08 R)
• M16: 2,558,572 km (0.11 R)
• M17: 2,682,739 km (0.078 R)
• M18: 2,847,147 km (0.09 R)
• M19: 2,950,070 km (0.097 R)
• M20: 3,054,340 km (0.078 R)
• M21: 3,213,063 km (0.109 R)
• M22: 3,333,938 km (0.054 R)
• M23: 3,594,388 km (0.085 R)
• M24: 3,790,511 km (0.06 R)
• M25: 3,889,993 km (0.102 R)
• M26: 4,179,017 km (0.118 R)
• M27: 4,505,289 km (0.042 R)
• M28: 4,886,166 km (0.061 R)
• M29: 5,057,156 km (0.108 R)
• M30: 5,230,241 km (0.117 R)
• M31: 5,533,625 km (0.057 R)
• M32: 5,647,020 km (0.077 R)
• M33: 6,024,755 km (0.108 R)
• M34: 6,141,441 km (0.075 R)
• M35: 6,701,386 km (0.115 R)
• M36: 6,805,058 km (0.116 R)
• M37: 7,313,541 km (0.067 R)
• M38: 7,545,417 km (0.045 R)
• M39: 7,671,379 km (0.105 R)
• M40: 7,798,088 km (0.109 R)
• M41: 7,888,894 km (0.064 R)
• M42: 8,404,408 km (0.078 R)
• M43: 8,779,450 km (0.048 R)
• M44: 9,064,285 km (0.063 R)
• M45: 9,332,962 km (0.114 R)
• M46: 9,507,094 km (0.092 R)
• M47: 9,643,228 km (0.081 R)
• M48: 9,780,110 km (0.106 R)
• M49: 10,433,853 km (0.034 R)
• M50: 10,534,084 km (0.075 R)
• M51: 10,755,937 km (0.062 R)
• M52: 11,020,127 km (0.083 R)
• M53: 11,430,773 km (0.095 R)
• M54: 11,534,145 km (0.066 R)
• M55: 11,972,168 km (0.12 R)
• M56: 12,649,846 km (0.073 R)
• M57: 12,842,828 km (0.111 R)
• M58: 13,998,621 km (0.101 R)
• M59: 14,131,613 km (0.057 R)
• M60: 14,443,375 km (0.119 R)
• M61: 14,847,738 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.8

Radius: 14.4

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.18 AU - 3.56 AU

Year: 3242 Days

Day: 8.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 71,880,859 km

• M1: 201,957 km (0.041 R)
• M2: 328,517 km (0.071 R)
• M3: 562,039 km (0.068 R)
• M4: 894,595 km (0.108 R)
• M5: 1,024,147 km (0.063 R)
• M6: 1,317,808 km (0.045 R)
• M7: 1,802,056 km (0.041 R)
• M8: 1,897,499 km (0.079 R)
• M9: 2,093,772 km (0.057 R)
• M10: 2,946,180 km (0.119 R)
• M11: 3,223,535 km (0.092 R)
• M12: 3,630,441 km (0.1 R)
• M13: 3,928,440 km (0.11 R)
• M14: 4,603,276 km (0.04 R)
• M15: 4,702,759 km (0.088 R)
• M16: 5,141,978 km (0.072 R)
• M17: 5,477,227 km (0.101 R)
• M18: 5,807,838 km (0.109 R)
• M19: 7,105,300 km (0.047 R)
• M20: 7,297,833 km (0.058 R)
• M21: 7,427,235 km (0.109 R)
• M22: 8,098,930 km (0.088 R)
• M23: 8,448,839 km (0.085 R)
• M24: 8,790,072 km (0.079 R)
• M25: 9,373,653 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.6

Radius: 11.6

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.54 AU - 4.34 AU

Year: 5215 Days

Day: 11.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 71,880,859 km

• M1: 163,959 km (0.104 R)
• M2: 246,388 km (0.067 R)
• M3: 449,392 km (0.097 R)
• M4: 755,768 km (0.099 R)
• M5: 850,763 km (0.071 R)
• M6: 939,026 km (0.058 R)
• M7: 1,042,398 km (0.098 R)
• M8: 1,299,258 km (0.116 R)
• M9: 1,376,600 km (0.107 R)
• M10: 1,508,994 km (0.105 R)
• M11: 1,801,308 km (0.071 R)
• M12: 2,081,804 km (0.068 R)
• M13: 2,751,105 km (0.077 R)
• M14: 3,268,115 km (0.08 R)
• M15: 3,447,333 km (0.073 R)
• M16: 3,519,888 km (0.1 R)
• M17: 3,740,844 km (0.075 R)
• M18: 4,391,445 km (0.072 R)
• M19: 4,529,824 km (0.089 R)
• M20: 4,709,939 km (0.089 R)
• M21: 4,811,068 km (0.09 R)
• M22: 5,139,435 km (0.092 R)
• M23: 5,327,330 km (0.111 R)
• M24: 5,496,375 km (0.12 R)
• M25: 5,992,143 km (0.109 R)
• M26: 6,234,491 km (0.105 R)
• M27: 6,367,933 km (0.113 R)
• M28: 6,570,039 km (0.109 R)
• M29: 6,774,240 km (0.108 R)
• M30: 7,096,175 km (0.059 R)
• M31: 7,305,762 km (0.103 R)
• M32: 7,470,170 km (0.058 R)
• M33: 7,659,710 km (0.071 R)
• M34: 7,755,004 km (0.056 R)
• M35: 8,879,681 km (0.052 R)
• M36: 8,954,779 km (0.062 R)
• M37: 9,563,493 km (0.079 R)
• M38: 10,028,742 km (0.117 R)
• M39: 10,264,209 km (0.11 R)
• M40: 10,343,047 km (0.04 R)
• M41: 10,713,900 km (0.076 R)
• M42: 10,793,935 km (0.1 R)
• M43: 10,981,531 km (0.079 R)
• M44: 11,251,256 km (0.106 R)
• M45: 11,495,998 km (0.08 R)
• M46: 12,268,521 km (0.113 R)
• M47: 12,632,942 km (0.089 R)
• M48: 12,717,614 km (0.071 R)
• M49: 12,972,529 km (0.049 R)
• M50: 13,372,554 km (0.095 R)
• M51: 13,602,934 km (0.081 R)
• M52: 13,805,639 km (0.086 R)
• M53: 13,980,071 km (0.115 R)
• M54: 14,096,907 km (0.1 R)
• M55: 14,213,892 km (0.088 R)
• M56: 14,390,118 km (0.119 R)
• M57: 14,744,815 km (0.095 R)
• M58: 16,008,767 km (0.107 R)
• M59: 16,592,049 km (0.119 R)
• M60: 16,715,617 km (0.091 R)
• M61: 16,932,833 km (0.11 R)
• M62: 17,369,958 km (0.077 R)
• M63: 17,747,543 km (0.083 R)
• M64: 18,000,813 km (0.037 R)
• M65: 18,896,754 km (0.037 R)
• M66: 18,993,694 km (0.084 R)
• M67: 19,155,409 km (0.074 R)
• M68: 19,252,797 km (0.101 R)
• M69: 20,466,335 km (0.118 R)
• M70: 20,632,239 km (0.083 R)
• M71: 20,931,884 km (0.063 R)
• M72: 21,166,004 km (0.034 R)
• M73: 21,468,342 km (0.09 R)
• M74: 21,636,938 km (0.06 R)
• M75: 21,941,520 km (0.045 R)
• M76: 22,247,447 km (0.067 R)
• M77: 22,383,881 km (0.118 R)
• M78: 22,657,645 km (0.047 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.7

Radius: 7.8

Gravity: 9.74 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.28 AU - 10.86 AU

Year: 19742 Days

Day: 15.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 71,880,859 km

• M1: 108,758 km (0.114 R)
• M2: 331,210 km (0.112 R)
• M3: 527,332 km (0.097 R)
• M4: 759,508 km (0.079 R)
• M5: 923,767 km (0.117 R)
• M6: 1,542,055 km (0.12 R)
• M7: 1,630,766 km (0.039 R)
• M8: 1,690,905 km (0.109 R)
• M9: 1,782,608 km (0.056 R)
• M10: 2,002,966 km (0.086 R)
• M11: 2,539,424 km (0.118 R)
• M12: 2,896,514 km (0.118 R)
• M13: 3,118,368 km (0.064 R)
• M14: 4,908,157 km (0.029 R)
• M15: 5,808,885 km (0.076 R)
• M16: 6,421,489 km (0.067 R)
• M17: 7,809,458 km (0.09 R)
• M18: 8,222,497 km (0.036 R)
• M19: 8,748,932 km (0.067 R)
• M20: 12,128,947 km (0.108 R)
• M21: 13,581,542 km (0.117 R)
• M22: 13,705,110 km (0.102 R)
• M23: 14,391,166 km (0.1 R)
• M24: 14,960,834 km (0.081 R)
• M25: 15,216,347 km (0.108 R)
• M26: 15,344,553 km (0.039 R)
• M27: 15,473,357 km (0.074 R)
• M28: 16,515,455 km (0.034 R)
• M29: 17,245,194 km (0.089 R)
• M30: 19,149,425 km (0.039 R)
• M31: 19,496,492 km (0.103 R)
• M32: 19,705,780 km (0.092 R)
• M33: 20,267,370 km (0.03 R)
• M34: 20,691,929 km (0.105 R)
• M35: 21,478,065 km (0.113 R)
• M36: 22,346,780 km (0.118 R)
• M37: 22,932,306 km (0.066 R)
• M38: 23,671,170 km (0.071 R)
• M39: 27,169,816 km (0.069 R)
• M40: 27,403,488 km (0.104 R)
• M41: 28,819,731 km (0.085 R)
• M42: 29,456,868 km (0.115 R)
• M43: 29,536,903 km (0.096 R)
• M44: 29,937,675 km (0.042 R)
• M45: 30,179,126 km (0.114 R)
• M46: 31,232,744 km (0.032 R)
• M47: 34,633,553 km (0.087 R)
• M48: 35,225,811 km (0.108 R)
• M49: 36,420,499 km (0.091 R)
• M50: 37,109,098 km (0.096 R)
• M51: 37,281,884 km (0.069 R)
• M52: 38,324,431 km (0.11 R)
• M53: 38,586,527 km (0.08 R)
• M54: 39,112,662 km (0.118 R)
• M55: 39,906,130 km (0.096 R)
• M56: 40,349,238 km (0.081 R)
• M57: 41,061,624 km (0.086 R)
• M58: 41,598,680 km (0.115 R)
• M59: 43,223,762 km (0.102 R)
• M60: 43,952,602 km (0.047 R)
• M61: 44,501,926 km (0.032 R)
• M62: 45,145,795 km (0.103 R)
• M63: 46,349,459 km (0.099 R)
• M64: 47,095,504 km (0.067 R)
• M65: 48,316,223 km (0.098 R)
• M66: 48,883,049 km (0.065 R)
• M67: 49,167,435 km (0.108 R)
• M68: 51,654,050 km (0.068 R)
• M69: 52,718,439 km (0.087 R)
• M70: 53,302,021 km (0.029 R)
• M71: 53,497,096 km (0.106 R)
• M72: 54,083,520 km (0.093 R)
• M73: 54,279,493 km (0.116 R)
• M74: 56,450,607 km (0.093 R)
• M75: 59,557,605 km (0.088 R)
• M76: 61,182,986 km (0.074 R)
• M77: 61,387,187 km (0.105 R)
• M78: 62,308,710 km (0.081 R)
• M79: 68,251,186 km (0.099 R)
• M80: 70,914,028 km (0.075 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 18,801 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit