<p>The <a href="http://pluto.jhuapl.edu/soc/Pluto-Encounter/view_obs.php?image=029932/lor_0299323899_0x630_sci_2.jpg&amp;utc_time=2015-07-16%3Cbr%3E03:39:40%20UTC&amp;description=OpNav%20Campaign%204,%20LORRI%201X1&amp;target=PLUTO&amp;range=2.0M%20km&amp;exposure=100%20msec&amp;imgType=approved" rel="nofollow">"raw" LORRI image</a> is 1024x1024 pixels. The field of view is about 0.29°, see section 3.6 of <a href="http://sbn.pds.nasa.gov/holdings/nh-x-lorri-2-plutocruise-v1.0/document/morgan_spie.pdf" rel="nofollow">this paper</a>, or abstract of <a href="http://arxiv.org/ftp/arxiv/papers/0709/0709.4278.pdf" rel="nofollow">this paper</a>.
Pluto is a little less than 250 pixels in the raw image, corresponding to 0.29° x 250/1024 = 4'15'', well consistent with your estimate.</p>

CC BY-SA 3.0
2015-12-03T22:52:24.510Z
2015-12-03T22:58:31.817Z
2015-12-03T22:58:31.817Z
Gerald
<p>The <a href="http://www.slate.com/blogs/bad_astronomy/2015/07/24/pluto_ice_flows_and_a_ring_of_light.html" rel="nofollow">Sun-Pluto eclipse picture</a> was taken from 2 million km from Pluto. At that distance, Pluto will have angular size of just 4'5". Hence this picture must be a zoomed up image. Approximately how much will be the zoom of this image? Also, is it possible to give the power of its camera in megapixel terms? Thanks for your responses.</p>

CC BY-SA 3.0
2015-10-22T21:40:32.487Z
Voted you up for the amazing photos.   Most cameras launched in space need very high zoom to be useful.
userLTK
<pluto>
How much is the zoom of Sun-Pluto eclipse image
rnso
# How much is the zoom of Sun-Pluto eclipse image

(Asked by: username_0 on 2015-10-16)

The [Sun-Pluto eclipse picture](http://www.slate.com/blogs/bad_astronomy/2015/07/24/pluto_ice_flows_and_a_ring_of_light.html) was taken from 2 million km from Pluto. At that distance, Pluto will have angular size of just 4'5". Hence this picture must be a zoomed up image. Approximately how much will be the zoom of this image? Also, is it possible to give the power of its camera in megapixel terms? Thanks for your responses.

**Tags:** pluto

> **Comments:**
> **username_1**: Voted you up for the amazing photos.   Most cameras launched in space need very high zoom to be useful.  

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## 1 answers

### Answer by username_2 on 2015-12-03. Score: 4

The ["raw" LORRI image](http://pluto.jhuapl.edu/soc/Pluto-Encounter/view_obs.php?image=029932/lor_0299323899_0x630_sci_2.jpg&utc_time=2015-07-16%3Cbr%3E03:39:40%20UTC&description=OpNav%20Campaign%204,%20LORRI%201X1&target=PLUTO&range=2.0M%20km&exposure=100%20msec&imgType=approved) is 1024x1024 pixels. The field of view is about 0.29°, see section 3.6 of [this paper](http://sbn.pds.nasa.gov/holdings/nh-x-lorri-2-plutocruise-v1.0/document/morgan_spie.pdf), or abstract of [this paper](http://arxiv.org/ftp/arxiv/papers/0709/0709.4278.pdf).
Pluto is a little less than 250 pixels in the raw image, corresponding to 0.29° x 250/1024 = 4'15'', well consistent with your estimate.


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