convertimate Right ascension

Degrees to decimal hours

Type a value in ° to get it in h instantly.

18.6h

That's about the same as Vega.

What it means

Where is that on the sky?

Star positions are J2000. Right ascension minutes and seconds are time units, 15 times larger than arcminutes and arcseconds.

The math

How to convert ° to h

To convert degrees to decimal hours, multiply by 0.0666667.

Example: 279 ° × 0.0666667 = 18.6 h.

In the other direction, 1 h = 15 °.

Every unit

That position in every unit

Tables

° to h conversion table

° to h conversion table
°h
0 °0 h
15 °1 h
30 °2 h
45 °3 h
60 °4 h
75 °5 h
90 °6 h
120 °8 h
150 °10 h
180 °12 h
210 °14 h
240 °16 h
270 °18 h
300 °20 h
330 °22 h
345 °23 h
h to ° conversion table
h to ° conversion table
h°
0 h0 °
1 h15 °
2 h30 °
3 h45 °
4 h60 °
5 h75 °
6 h90 °
8 h120 °
10 h150 °
12 h180 °
14 h210 °
16 h240 °
18 h270 °
20 h300 °
22 h330 °
23 h345 °

Quick answers

Quick answers

How many h is 1 °?
1 ° is 0.0666667 h.
How many h is 10 °?
10 ° is 0.666667 h.
How many h is 279 °?
279 ° is 18.6 h.

The units

About these units

Degrees (°)

Right ascension in decimal degrees.

Decimal hours (h)

Right ascension in decimal hours.

Learn more about position units

Keep going

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