Arcseconds to Quarter circles Table - Angle Measurement

***0.1 - 0.54***
arcseconds to quarter circles
0.1	≈ 3.0864197530864E-7
0.11	≈ 3.3950617283951E-7
0.12	≈ 3.7037037037037E-7
0.13	≈ 4.0123456790123E-7
0.14	≈ 4.320987654321E-7
0.15	≈ 4.6296296296296E-7
0.16	≈ 4.9382716049383E-7
0.17	≈ 5.2469135802469E-7
0.18	≈ 5.5555555555556E-7
0.19	≈ 5.8641975308642E-7
0.20	≈ 6.1728395061728E-7
0.21	≈ 6.4814814814815E-7
0.22	≈ 6.7901234567901E-7
0.23	≈ 7.0987654320988E-7
0.24	≈ 7.4074074074074E-7
0.25	≈ 7.716049382716E-7
0.26	≈ 8.0246913580247E-7
0.27	≈ 8.3333333333333E-7
0.28	≈ 8.641975308642E-7
0.29	≈ 8.9506172839506E-7
0.30	≈ 9.2592592592593E-7
0.31	≈ 9.5679012345679E-7
0.32	≈ 9.8765432098765E-7
0.33	≈ 1.0185185185185E-6
0.34	≈ 1.0493827160494E-6
0.35	≈ 1.0802469135802E-6
0.36	≈ 1.1111111111111E-6
0.37	≈ 1.141975308642E-6
0.38	≈ 1.1728395061728E-6
0.39	≈ 1.2037037037037E-6
0.40	≈ 1.2345679012346E-6
0.41	≈ 1.2654320987654E-6
0.42	≈ 1.2962962962963E-6
0.43	≈ 1.3271604938272E-6
0.44	≈ 1.358024691358E-6
0.45	≈ 1.3888888888889E-6
0.46	≈ 1.4197530864198E-6
0.47	≈ 1.4506172839506E-6
0.48	≈ 1.4814814814815E-6
0.49	≈ 1.5123456790123E-6
0.50	≈ 1.5432098765432E-6
0.51	≈ 1.5740740740741E-6
0.52	≈ 1.6049382716049E-6
0.53	≈ 1.6358024691358E-6
0.54	≈ 1.6666666666667E-6

***0.55 - 0.99***
arcseconds to quarter circles
0.55	≈ 1.6975308641975E-6
0.56	≈ 1.7283950617284E-6
0.57	≈ 1.7592592592593E-6
0.58	≈ 1.7901234567901E-6
0.59	≈ 1.820987654321E-6
0.60	≈ 1.8518518518519E-6
0.61	≈ 1.8827160493827E-6
0.62	≈ 1.9135802469136E-6
0.63	≈ 1.9444444444444E-6
0.64	≈ 1.9753086419753E-6
0.65	≈ 2.0061728395062E-6
0.66	≈ 2.037037037037E-6
0.67	≈ 2.0679012345679E-6
0.68	≈ 2.0987654320988E-6
0.69	≈ 2.1296296296296E-6
0.70	≈ 2.1604938271605E-6
0.71	≈ 2.1913580246914E-6
0.72	≈ 2.2222222222222E-6
0.73	≈ 2.2530864197531E-6
0.74	≈ 2.283950617284E-6
0.75	≈ 2.3148148148148E-6
0.76	≈ 2.3456790123457E-6
0.77	≈ 2.3765432098765E-6
0.78	≈ 2.4074074074074E-6
0.79	≈ 2.4382716049383E-6
0.80	≈ 2.4691358024691E-6
0.81	≈ 2.5E-6
0.82	≈ 2.5308641975309E-6
0.83	≈ 2.5617283950617E-6
0.84	≈ 2.5925925925926E-6
0.85	≈ 2.6234567901235E-6
0.86	≈ 2.6543209876543E-6
0.87	≈ 2.6851851851852E-6
0.88	≈ 2.716049382716E-6
0.89	≈ 2.7469135802469E-6
0.90	≈ 2.7777777777778E-6
0.91	≈ 2.8086419753086E-6
0.92	≈ 2.8395061728395E-6
0.93	≈ 2.8703703703704E-6
0.94	≈ 2.9012345679012E-6
0.95	≈ 2.9320987654321E-6
0.96	≈ 2.962962962963E-6
0.97	≈ 2.9938271604938E-6
0.98	≈ 3.0246913580247E-6
0.99	≈ 3.0555555555556E-6

***1.00 - 1.44***
arcseconds to quarter circles
1.00	≈ 3.0864197530864E-6
1.01	≈ 3.1172839506173E-6
1.02	≈ 3.1481481481481E-6
1.03	≈ 3.179012345679E-6
1.04	≈ 3.2098765432099E-6
1.05	≈ 3.2407407407407E-6
1.06	≈ 3.2716049382716E-6
1.07	≈ 3.3024691358025E-6
1.08	≈ 3.3333333333333E-6
1.09	≈ 3.3641975308642E-6
1.10	≈ 3.3950617283951E-6
1.11	≈ 3.4259259259259E-6
1.12	≈ 3.4567901234568E-6
1.13	≈ 3.4876543209877E-6
1.14	≈ 3.5185185185185E-6
1.15	≈ 3.5493827160494E-6
1.16	≈ 3.5802469135802E-6
1.17	≈ 3.6111111111111E-6
1.18	≈ 3.641975308642E-6
1.19	≈ 3.6728395061728E-6
1.20	≈ 3.7037037037037E-6
1.21	≈ 3.7345679012346E-6
1.22	≈ 3.7654320987654E-6
1.23	≈ 3.7962962962963E-6
1.24	≈ 3.8271604938272E-6
1.25	≈ 3.858024691358E-6
1.26	≈ 3.8888888888889E-6
1.27	≈ 3.9197530864198E-6
1.28	≈ 3.9506172839506E-6
1.29	≈ 3.9814814814815E-6
1.30	≈ 4.0123456790123E-6
1.31	≈ 4.0432098765432E-6
1.32	≈ 4.0740740740741E-6
1.33	≈ 4.1049382716049E-6
1.34	≈ 4.1358024691358E-6
1.35	≈ 4.1666666666667E-6
1.36	≈ 4.1975308641975E-6
1.37	≈ 4.2283950617284E-6
1.38	≈ 4.2592592592593E-6
1.39	≈ 4.2901234567901E-6
1.40	≈ 4.320987654321E-6
1.41	≈ 4.3518518518519E-6
1.42	≈ 4.3827160493827E-6
1.43	≈ 4.4135802469136E-6
1.44	≈ 4.4444444444444E-6

***1.45 - 1.89***
arcseconds to quarter circles
1.45	≈ 4.4753086419753E-6
1.46	≈ 4.5061728395062E-6
1.47	≈ 4.537037037037E-6
1.48	≈ 4.5679012345679E-6
1.49	≈ 4.5987654320988E-6
1.50	≈ 4.6296296296296E-6
1.51	≈ 4.6604938271605E-6
1.52	≈ 4.6913580246914E-6
1.53	≈ 4.7222222222222E-6
1.54	≈ 4.7530864197531E-6
1.55	≈ 4.783950617284E-6
1.56	≈ 4.8148148148148E-6
1.57	≈ 4.8456790123457E-6
1.58	≈ 4.8765432098765E-6
1.59	≈ 4.9074074074074E-6
1.60	≈ 4.9382716049383E-6
1.61	≈ 4.9691358024691E-6
1.62	≈ 5.0E-6
1.63	≈ 5.0308641975309E-6
1.64	≈ 5.0617283950617E-6
1.65	≈ 5.0925925925926E-6
1.66	≈ 5.1234567901235E-6
1.67	≈ 5.1543209876543E-6
1.68	≈ 5.1851851851852E-6
1.69	≈ 5.216049382716E-6
1.70	≈ 5.2469135802469E-6
1.71	≈ 5.2777777777778E-6
1.72	≈ 5.3086419753086E-6
1.73	≈ 5.3395061728395E-6
1.74	≈ 5.3703703703704E-6
1.75	≈ 5.4012345679012E-6
1.76	≈ 5.4320987654321E-6
1.77	≈ 5.462962962963E-6
1.78	≈ 5.4938271604938E-6
1.79	≈ 5.5246913580247E-6
1.80	≈ 5.5555555555556E-6
1.81	≈ 5.5864197530864E-6
1.82	≈ 5.6172839506173E-6
1.83	≈ 5.6481481481481E-6
1.84	≈ 5.679012345679E-6
1.85	≈ 5.7098765432099E-6
1.86	≈ 5.7407407407407E-6
1.87	≈ 5.7716049382716E-6
1.88	≈ 5.8024691358025E-6
1.89	≈ 5.8333333333333E-6

***1.90 - 2.34***
arcseconds to quarter circles
1.90	≈ 5.8641975308642E-6
1.91	≈ 5.8950617283951E-6
1.92	≈ 5.9259259259259E-6
1.93	≈ 5.9567901234568E-6
1.94	≈ 5.9876543209877E-6
1.95	≈ 6.0185185185185E-6
1.96	≈ 6.0493827160494E-6
1.97	≈ 6.0802469135802E-6
1.98	≈ 6.1111111111111E-6
1.99	≈ 6.141975308642E-6
2.00	≈ 6.1728395061728E-6
2.01	≈ 6.2037037037037E-6
2.02	≈ 6.2345679012346E-6
2.03	≈ 6.2654320987654E-6
2.04	≈ 6.2962962962963E-6
2.05	≈ 6.3271604938272E-6
2.06	≈ 6.358024691358E-6
2.07	≈ 6.3888888888889E-6
2.08	≈ 6.4197530864198E-6
2.09	≈ 6.4506172839506E-6
2.10	≈ 6.4814814814815E-6
2.11	≈ 6.5123456790123E-6
2.12	≈ 6.5432098765432E-6
2.13	≈ 6.5740740740741E-6
2.14	≈ 6.6049382716049E-6
2.15	≈ 6.6358024691358E-6
2.16	≈ 6.6666666666667E-6
2.17	≈ 6.6975308641975E-6
2.18	≈ 6.7283950617284E-6
2.19	≈ 6.7592592592593E-6
2.20	≈ 6.7901234567901E-6
2.21	≈ 6.820987654321E-6
2.22	≈ 6.8518518518519E-6
2.23	≈ 6.8827160493827E-6
2.24	≈ 6.9135802469136E-6
2.25	≈ 6.9444444444444E-6
2.26	≈ 6.9753086419753E-6
2.27	≈ 7.0061728395062E-6
2.28	≈ 7.037037037037E-6
2.29	≈ 7.0679012345679E-6
2.30	≈ 7.0987654320988E-6
2.31	≈ 7.1296296296296E-6
2.32	≈ 7.1604938271605E-6
2.33	≈ 7.1913580246914E-6
2.34	≈ 7.2222222222222E-6

***2.35 - 2.79***
arcseconds to quarter circles
2.35	≈ 7.2530864197531E-6
2.36	≈ 7.2839506172839E-6
2.37	≈ 7.3148148148148E-6
2.38	≈ 7.3456790123457E-6
2.39	≈ 7.3765432098765E-6
2.40	≈ 7.4074074074074E-6
2.41	≈ 7.4382716049383E-6
2.42	≈ 7.4691358024691E-6
2.43	≈ 7.5E-6
2.44	≈ 7.5308641975309E-6
2.45	≈ 7.5617283950617E-6
2.46	≈ 7.5925925925926E-6
2.47	≈ 7.6234567901235E-6
2.48	≈ 7.6543209876543E-6
2.49	≈ 7.6851851851852E-6
2.50	≈ 7.716049382716E-6
2.51	≈ 7.7469135802469E-6
2.52	≈ 7.7777777777778E-6
2.53	≈ 7.8086419753086E-6
2.54	≈ 7.8395061728395E-6
2.55	≈ 7.8703703703704E-6
2.56	≈ 7.9012345679012E-6
2.57	≈ 7.9320987654321E-6
2.58	≈ 7.962962962963E-6
2.59	≈ 7.9938271604938E-6
2.60	≈ 8.0246913580247E-6
2.61	≈ 8.0555555555556E-6
2.62	≈ 8.0864197530864E-6
2.63	≈ 8.1172839506173E-6
2.64	≈ 8.1481481481481E-6
2.65	≈ 8.179012345679E-6
2.66	≈ 8.2098765432099E-6
2.67	≈ 8.2407407407407E-6
2.68	≈ 8.2716049382716E-6
2.69	≈ 8.3024691358025E-6
2.70	≈ 8.3333333333333E-6
2.71	≈ 8.3641975308642E-6
2.72	≈ 8.3950617283951E-6
2.73	≈ 8.4259259259259E-6
2.74	≈ 8.4567901234568E-6
2.75	≈ 8.4876543209877E-6
2.76	≈ 8.5185185185185E-6
2.77	≈ 8.5493827160494E-6
2.78	≈ 8.5802469135802E-6
2.79	≈ 8.6111111111111E-6

Symbol	Definition
≡	exactly equal
≈	approximately equal to
=	equal to
`digits`	indicates that `digits` repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)

A second of arc, arcsecond (arcsec), arc second, or second arc is a unit of angular measurement equal to 1/3600 of one degree.

1/4 circle or quarter circle is equal to 360°/4 = 90°. Plural name is quarter circles.

Arcsecond to Quarter circle Conversion Table