07.176 Nightlight BCA

  • Hamer, John;Personal communication 2017;
  • L/W=1.000
  • H/W=0.696
  • Vol/W^3=0.297
  • 53+8 Facets
  • Gear: 96
  • Remarks: BCA=Below the Critical Angle
12 24 36 48 60 72 84 <96> W W U U L L T T C C P P a b c d T a 1 2 g1 g2 3 4 1 2 g1 3 4 a b c d a b c d T a 1 2 g1 g2 3 4 1 2 g1 3 4 a b c d PC 07.176 Nightlight. BCA. Designed by J Hamer. April 2010. Copyright assigned to the public domain. Angles for R.I. = 1.540 53 facets + 8 girdles 4-fold, mirror-image symmetry; 96 index L/W = 1.000 T/W = 0.316 U/W = 0.316 P/W = 0.459 C/W = 0.217 Vol/W³ = 0.297 pc07176.asc
137.50°10-14-34-38-58-62-82-86Cut to centrepoint
237.99°12-36-60-84Meet 1 at centrepoint
g190.00°96-24-48-72Size ztone
g290.00°12-36-60-84Meet 1, 2, g1
339.78°06-18-30-42-54-66-78-90Meet 1, 2, g1, g2
441.46°96-24-48-72Meet 1, 3, 4
a29.00°12-36-60-84Size girdle
b32.53°04-20-28-44-52-68-76-92Meet a, g1, g2
c25.58°02-22-26-46-50-70-74-94MeetG1, b
d21.69°08-16-32-40-56-64-80-88Meet c, b, a
T0.00°TableMeet c, d

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