<p>According to <a href="https://en.wikipedia.org/wiki/S62_(star)" rel="nofollow noreferrer">wikipedia</a> it is 10 degrees.  Wikipedia cites <a href="https://arxiv.org/pdf/2002.02341.pdf" rel="nofollow noreferrer">Peißker et al</a>, 
which uses the formula:
<span class="math-container">$$\Delta\phi = \frac{6\pi G}{c^2}\frac{M}{a(1-e^2)}$$</span> to derive a relativistic periapse shift of 9.9 degrees per orbit.</p>

CC BY-SA 4.0
2020-03-30T18:23:48.510Z
9.9 degrees per orbit is not the correct value. If you do the numerical calculation you'll find 1.26 degrees. The value given in Peissker's paper is wrong (Peissker did agree) and so is the publication in Wikipedia.
Rene Kail
CC BY-SA 4.0
2020-03-28T14:58:59.697Z
2020-03-28T14:58:59.697Z
James K
<p>What is the angle of precession of the star S62 orbiting the Milky Way supermassive black hole?</p>

CC BY-SA 4.0
2020-03-28T10:04:56.193Z
This is [cross-posted from Physics SE](https://physics.stackexchange.com/q/538660/83380) but in an even shorter and less clear form than it was there! `-1` because none of the concerns raised in comments there were addressed there or here.
uhoh
<star><black-hole>
What is the precession of the star S62?
Rene Kail
# What is the precession of the star S62?

(Asked by: username_0 on 2020-03-28)

What is the angle of precession of the star S62 orbiting the Milky Way supermassive black hole?

**Tags:** star, black-hole

> **Comments:**
> **username_1**: This is [cross-posted from Physics SE](https://physics.stackexchange.com/q/538660/83380) but in an even shorter and less clear form than it was there! `-1` because none of the concerns raised in comments there were addressed there or here.  

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## 1 answers

### Answer by username_2 on 2020-03-28. Score: 1

According to [wikipedia](https://en.wikipedia.org/wiki/S62_(star)) it is 10 degrees. Wikipedia cites [Peißker et al](https://arxiv.org/pdf/2002.02341.pdf),
which uses the formula:
$$\Delta\phi = \frac{6\pi G}{c^2}\frac{M}{a(1-e^2)}$$ to derive a relativistic periapse shift of 9.9 degrees per orbit.

> **Comments:**
> **username_0**: 9.9 degrees per orbit is not the correct value. If you do the numerical calculation you'll find 1.26 degrees. The value given in Peissker's paper is wrong (Peissker did agree) and so is the publication in Wikipedia.  

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