<p>Question: Tolerances given for <a href="https://en.wikipedia.org/wiki/Galactic_coordinate_system" rel="nofollow noreferrer">Galactic Directions</a>, in answer to 'How fast are we moving relative to the <a href="https://en.wikipedia.org/wiki/Cosmic_microwave_background" rel="nofollow noreferrer">CMB</a>?'</p>
<p>Where:</p>
<p><span class="math-container">$$ℓ = 264.021º ± 0.011º$$</span>
<span class="math-container">$$ =  48.253º ± 0.005º$$</span></p>
<p>I can find these values on the net, but I cannot find the tolerances given here.</p>
<p>The link given: <a href="https://ui.adsabs.harvard.edu/abs/2020A&amp;A...641A...6P/abstract" rel="nofollow noreferrer">Planck Collaboration et al. (2018)</a>, does not give any such information.</p>
<p>Can you help please?</p>

CC BY-SA 4.0
2024-03-30T20:53:54.060Z
Can you explain a bit more about what you want?  It's not clear to me what you mean. (1) "I can find these values on the net"  Please link to the place on the net where you can find the values.  (2)  "I cannot find the tolerances given here."  Where is "here"?  What do you mean by "tolerances"?   (3) "The link given <<. Planck Collaboration et al. (2018) >>"  This isn't a link,  it isn't a full citation.  What link are you asking about?
James K
CC BY-SA 4.0
2024-03-30T20:57:10.597Z
I hope you will add this information and clarify the question. If not I'll have to vote to close, as I don't think it is clear enough to answer.
James K
CC BY-SA 4.0
2024-03-31T11:24:56.930Z
The numbers you quote have error bars, which seem like perfectly valid "tolerances". So, again, it's not clear what you're asking about.
Peter Erwin
CC BY-SA 4.0
2024-03-31T22:38:00.880Z
The link given is incomplete.  I can find a link to a pdf, << arXiv:2009.14826v2 [astro-ph.CO] 18 Jan 2021 >> but though it gives the values, there are no tolerances.  Can you please direct me to the correct link, for I cannot find the details you are referring to.
DaveAt168
CC BY-SA 4.0
2024-04-01T11:48:36.630Z
I think you might be talking about https://arxiv.org/abs/1807.06209  Planck 2018 results. VI. Cosmological parameters  Or perhaps "https://www.aanda.org/articles/aa/full_html/2020/09/aa33880-18/aa33880-18.html"  By "Link" I mean a URL (starting https://) You need to include your link in the question.  And you need to follow up your own citations.  I still don't know what your doubt or question is.  What are you uncertain about?
James K
<observational-astronomy><cosmic-microwave-background>
Tolerances given for Galactic Directions in answer to 'How fast are we moving relative to the CMB?'
DaveAt168
# Tolerances given for Galactic Directions in answer to 'How fast are we moving relative to the CMB?'

(Asked by: username_0 on 2024-03-30)

Question: Tolerances given for [Galactic Directions](https://en.wikipedia.org/wiki/Galactic_coordinate_system), in answer to 'How fast are we moving relative to the [CMB](https://en.wikipedia.org/wiki/Cosmic_microwave_background)?'

Where:

$$ℓ = 264.021º ± 0.011º$$
$$ = 48.253º ± 0.005º$$

I can find these values on the net, but I cannot find the tolerances given here.

The link given: [Planck Collaboration et al. (2018)](https://ui.adsabs.harvard.edu/abs/2020A&A...641A...6P/abstract), does not give any such information.

Can you help please?

**Tags:** observational-astronomy, cosmic-microwave-background

> **Comments:**
> **username_1**: Can you explain a bit more about what you want?  It's not clear to me what you mean. (1) "I can find these values on the net"  Please link to the place on the net where you can find the values.  (2)  "I cannot find the tolerances given here."  Where is "here"?  What do you mean by "tolerances"?   (3) "The link given <<. Planck Collaboration et al. (2018) >>"  This isn't a link,  it isn't a full citation.  What link are you asking about?  
> **username_1**: I hope you will add this information and clarify the question. If not I'll have to vote to close, as I don't think it is clear enough to answer.  
> **username_2**: The numbers you quote have error bars, which seem like perfectly valid "tolerances". So, again, it's not clear what you're asking about.  
> **username_0**: The link given is incomplete.  I can find a link to a pdf, << arXiv:2009.14826v2 [astro-ph.CO] 18 Jan 2021 >> but though it gives the values, there are no tolerances.  Can you please direct me to the correct link, for I cannot find the details you are referring to.  
> **username_1**: I think you might be talking about https://arxiv.org/abs/1807.06209  Planck 2018 results. VI. Cosmological parameters  Or perhaps "https://www.aanda.org/articles/aa/full_html/2020/09/aa33880-18/aa33880-18.html"  By "Link" I mean a URL (starting https://) You need to include your link in the question.  And you need to follow up your own citations.  I still don't know what your doubt or question is.  What are you uncertain about?  

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## 0 answers

