<p>Wikipedia , on several asteroid articles, claims that right ascension and declination of the North Pole can give you the axial tilt of the object. What formula is used to convert these 2 values into the axial tilt? (Ceres, for example, has an R.A. Of 291 degrees and a declination of 59 degrees; its axial tilt is approximately 3 degrees. How is this figured?</p>

CC BY-SA 3.0
2015-09-23T13:23:28.473Z
Could you show how this is done?
Damon Blevins
CC BY-SA 3.0
2015-09-23T16:35:11.127Z
No I saw it before
Damon Blevins
CC BY-SA 3.0
2015-09-23T16:55:33.253Z
I saw the values as different a long time ago and I saw it for Ceres.maybe I was wrong. But I don't know how it's done and I really want to, mathematically.
Damon Blevins
CC BY-SA 3.0
2015-09-23T18:01:06.697Z
I just want to know how the axial tilt is determined via the right ascension and declination, as shown in multiple Wikipedia articles on asteroids, such as Pallas and Eunomia. Im not wanting to know specifically this object, but for example, how did these 2 numbers reveal Ceres' axial tilt to be 3 degrees? What math can be done to show this?
Damon Blevins
<planet>
North Pole Right Ascension/Declination to axial tilt conversion
Damon Blevins
# North Pole Right Ascension/Declination to axial tilt conversion

(Asked by: username_0 on 2015-03-15)

Wikipedia , on several asteroid articles, claims that right ascension and declination of the North Pole can give you the axial tilt of the object. What formula is used to convert these 2 values into the axial tilt? (Ceres, for example, has an R.A. Of 291 degrees and a declination of 59 degrees; its axial tilt is approximately 3 degrees. How is this figured?

**Tags:** planet
> **Comments:**
> **username_0**: Could you show how this is done?  
> **username_0**: No I saw it before  
> **username_0**: I saw the values as different a long time ago and I saw it for Ceres.maybe I was wrong. But I don't know how it's done and I really want to, mathematically.  
> **username_0**: I just want to know how the axial tilt is determined via the right ascension and declination, as shown in multiple Wikipedia articles on asteroids, such as Pallas and Eunomia. Im not wanting to know specifically this object, but for example, how did these 2 numbers reveal Ceres' axial tilt to be 3 degrees? What math can be done to show this?  

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## 0 answers

