<p>What you are seeing is a result of internal reflections within the telescope that took the image used for plotting in the app you are using.</p>
<p>Here is a similar image (from <a href="https://asterisk.apod.com/viewtopic.php?f=8&amp;t=12721" rel="noreferrer">Google oops?</a>)</p>
<p><a href="https://i.sstatic.net/idvUam.jpg" rel="noreferrer"><img src="https://i.sstatic.net/idvUam.jpg" alt="enter image description here" /></a></p>
<p>Quoting from <a href="https://asterisk.apod.com/viewtopic.php?f=8&amp;t=12721#p87880" rel="noreferrer">Internal reflections</a> :</p>
<blockquote>
<p>The bluish features in both images are internal reflections in the
telescope. When there is a very bright object in the field of view,
the light can reflect around inside the telescope and camera before
being recorded. The artifact is blue because both examples are from
blue stars. There is probably a red artifact, too, but it is much
fainter and more difficult to identify. Canis Major contains the
brightest star in the sky, Sirius. Vega is somewhere near the top 10
brightest stars. These are both likely to create reflection artifacts.
The &quot;spider&quot; shaped shadow in the middle of the reflection is due to
the secondary mirror of the telescope. The blue streaks near the top
of the APOD image on November 30, 2005 are due to light leakage from
sigma Orionis (one of the bright stars in the belt of Orion).</p>
</blockquote>
<p>Additional details about this and other artifacts can be found in the YouTube video <a href="https://www.youtube.com/watch?v=cpwkiqbJQvY" rel="noreferrer">Google Sky Artifacts - Blue Donuts In Outer Space</a>.</p>

CC BY-SA 4.0
2022-02-25T19:56:54.377Z
2022-02-25T19:56:54.377Z
GrapefruitIsAwesome
<p>Consider:</p>
<p><a href="https://i.sstatic.net/aP7Kvl.png4" rel="nofollow noreferrer"><img src="https://i.sstatic.net/aP7Kvl.png4" alt="" /></a></p>
<p>I tried <a href="https://en.wikipedia.org/wiki/Google_Lens" rel="nofollow noreferrer">Google Lens</a> to tell the answer, but it is not giving a true answer.</p>
<p>I am using the Android app <em>Stellarium</em>.</p>
<p><a href="https://i.sstatic.net/3Z3L5l.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/3Z3L5l.png" alt="Enter image description here" /></a></p>

CC BY-SA 4.0
2022-02-25T19:19:44.480Z
Can you please provide the name of the software you are using in your question?
GrapefruitIsAwesome
CC BY-SA 4.0
2022-02-25T19:21:55.943Z
Not enough for an answer but: [Google Sky Artifacts - Blue Donuts In Outer Space](https://www.youtube.com/watch?v=cpwkiqbJQvY)
GrapefruitIsAwesome
CC BY-SA 4.0
2022-02-25T19:23:29.687Z
it is an android app `stellarium` i thought so it would be app specific random image but i even search it on `worldwidetelescope.org` and found the same object at that constellation could you confirm it?please
leanatdo
CC BY-SA 4.0
2022-02-26T09:33:52.123Z
It would be good if you can give your question a more descriptive title.
PM 2Ring
CC BY-SA 4.0
2022-02-26T12:49:39.393Z
Spiderman. It's Spiderman.
Vilx-
<observational-astronomy><amateur-observing><photography>
What have I encountered here?
leanatdo
# What have I encountered here?

(Asked by: username_0 on 2022-02-25)

Consider:

[![](https://i.sstatic.net/aP7Kvl.png4)](https://i.sstatic.net/aP7Kvl.png4)

I tried [Google Lens](https://en.wikipedia.org/wiki/Google_Lens) to tell the answer, but it is not giving a true answer.

I am using the Android app *Stellarium*.

[![Enter image description here](https://i.sstatic.net/3Z3L5l.png)](https://i.sstatic.net/3Z3L5l.png)

**Tags:** observational-astronomy, amateur-observing, photography
> **Comments:**
> **username_1**: Can you please provide the name of the software you are using in your question?  
> **username_1**: Not enough for an answer but: [Google Sky Artifacts - Blue Donuts In Outer Space](https://www.youtube.com/watch?v=cpwkiqbJQvY)  
> **username_0**: it is an android app `stellarium` i thought so it would be app specific random image but i even search it on `worldwidetelescope.org` and found the same object at that constellation could you confirm it?please  
> **username_2**: It would be good if you can give your question a more descriptive title.  
> **username_3**: Spiderman. It's Spiderman.  

---

## 1 answers

### Answer by username_1 on 2022-02-25. Score: 12 | Accepted answer

What you are seeing is a result of internal reflections within the telescope that took the image used for plotting in the app you are using.

Here is a similar image (from [Google oops?](https://asterisk.apod.com/viewtopic.php?f=8&t=12721))

[![enter image description here](https://i.sstatic.net/idvUam.jpg)](https://i.sstatic.net/idvUam.jpg)

Quoting from [Internal reflections](https://asterisk.apod.com/viewtopic.php?f=8&t=12721#p87880) :

> The bluish features in both images are internal reflections in the
> telescope. When there is a very bright object in the field of view,
> the light can reflect around inside the telescope and camera before
> being recorded. The artifact is blue because both examples are from
> blue stars. There is probably a red artifact, too, but it is much
> fainter and more difficult to identify. Canis Major contains the
> brightest star in the sky, Sirius. Vega is somewhere near the top 10
> brightest stars. These are both likely to create reflection artifacts.
> The "spider" shaped shadow in the middle of the reflection is due to
> the secondary mirror of the telescope. The blue streaks near the top
> of the APOD image on November 30, 2005 are due to light leakage from
> sigma Orionis (one of the bright stars in the belt of Orion).

Additional details about this and other artifacts can be found in the YouTube video [Google Sky Artifacts - Blue Donuts In Outer Space](https://www.youtube.com/watch?v=cpwkiqbJQvY).


---

