<p>Mmm... it's a pretty small scope using a fairly high power. The disc of Mars is not going to be very large (just a few seconds of arc across) so I don't think you should expect to see something that looks like a HST image! Mars is pretty red as a rule, so 'red light' is what you should be seeing because the disc is too small to show much detail.</p>

CC BY-SA 4.0
2020-12-14T02:45:35.917Z
2020-12-14T02:45:35.917Z
Michael Poxon
<p>I have a 700 mm focal and 76 mm aperture telescope. I bought it a few days ago. I tried to spot Mars for 3 days but I only see red light. I use an 20 mm eyepiece for finding it and 4 mm eyepiece for seeing but only red light is visible. Please help me.</p>

CC BY-SA 4.0
2020-11-12T11:09:05.757Z
Is the red light just a dot or a ring of red light?
EDIT : If you could also link to your telescope model, it would be great.
RyugaGod
CC BY-SA 4.0
2020-11-12T22:10:41.023Z
If you go to [astronomy.tools' FoV calculator](http://astronomy.tools/calculators/field_of_view/), select Mars from the "Solar system" dropdown, then enter in your telescope and eyepiece details, and click "Add to view"; does the resulting image look like what you can see?
Aaron F
CC BY-SA 4.0
2021-01-13T06:20:48.370Z
As RyugaGod asked, is it a dot/disk or a ring?  'Cause my first thought is you're out of focus, and a ring would be very indicative of that.  Also, I assume you DON'T have a filter on there that's red?  (I've left filters on my camera that I forgot about.)
Stuart Robbins
<observational-astronomy><solar-system><photography><mars><night-sky>
When I see Mars, I see only red light
free fire nation
# When I see Mars, I see only red light

(Asked by: username_0 on 2020-11-12)

I have a 700 mm focal and 76 mm aperture telescope. I bought it a few days ago. I tried to spot Mars for 3 days but I only see red light. I use an 20 mm eyepiece for finding it and 4 mm eyepiece for seeing but only red light is visible. Please help me.

**Tags:** observational-astronomy, solar-system, photography, mars, night-sky

> **Comments:**
> **username_1**: Is the red light just a dot or a ring of red light? EDIT : If you could also link to your telescope model, it would be great.  
> **username_2**: If you go to [astronomy.tools' FoV calculator](http://astronomy.tools/calculators/field_of_view/), select Mars from the "Solar system" dropdown, then enter in your telescope and eyepiece details, and click "Add to view"; does the resulting image look like what you can see?  
> **username_3**: As username_1 asked, is it a dot/disk or a ring?  'Cause my first thought is you're out of focus, and a ring would be very indicative of that.  Also, I assume you DON'T have a filter on there that's red?  (I've left filters on my camera that I forgot about.)  

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## 1 answers

### Answer by username_4 on 2020-12-14. Score: 1

Mmm... it's a pretty small scope using a fairly high power. The disc of Mars is not going to be very large (just a few seconds of arc across) so I don't think you should expect to see something that looks like a HST image! Mars is pretty red as a rule, so 'red light' is what you should be seeing because the disc is too small to show much detail.


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