second of arc

1/3600 degree. Astronomy.

快速换算 — second of arc 与常用单位

实时换算器,三个方向。输入任意值,三个结果同步更新。

second of arc
degree
1 ″ = 0.0003°
second of arc
radian
1 ″ = 4.85e-6rad
second of arc
gradian
1 ″ = 0.0003gon

换算表 — second of arc 与全部Angle单位

1 ″(正向)与 1 反向单位 → {symbol} 的所有数值。

目标 / 来源 1 ″ = 1 目标单位 =
degree (°) 0.00027778 ° 3,600
radian (rad) 4.848137e-6 rad 206,264.8062471
gradian (gon) 0.00030864 gon 3,240
minute of arc (′) 0.01666667 60
turn (tr) 7.716049e-7 tr 1,296,000

Frequently Asked Questions

What does ″ stand for?

second of arc (″) is a unit of Angle.

How many ″ are in 1 rad?

1 rad = 4.8481e-6 ″, so 1 ″ = 206,264.806247 rad.

Is this the SI base unit?

No. second of arc is one of several units in the Angle category. The SI base is rad.

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