I've been puzzling for the last 2 days , trying to identify this image.
I went out on the evening of the 14 December, to get some images of the moon. The conditions for seeing were terrible , I think partially due to a neighbours central heating sending up waves of heat turbulence, but I got a few shots of the moon anyway (bond crater region pic attached). Mars has been quite poor this opposition and low down, due to my high latitude in the UK, meaning I have not managed to image it this year. However, even though its small now and probably wouldn't reveal much detail, I thought I'd at least get some images, since it was clearly just above the moon.
At just after 1800UT on this evening, I moved the scope upwards the 10deg or so journey to mars from the moon. I was having trouble with finder scope alignment, but generally bright planets are not hard to find. After I little messing around, I locked on to what I thought was Mars, but immediately noticed a companion (see pic A ) very close. Could it be phobos I thought but as Mars is 1st mag, and phobos being listed as 12.8 . I thought this very unlikely. However, If not then what is this faint companion close to the bright object.
Maybe I had got a bright star rather than mars and it was a double star, but yet no other bright stars seems to be in the region.
My ZWO ASI 120MM does not show colour so the image is purely mono, and my scope is a celestron C8, at F/10.
I set the exposure to about 2 seconds for this sequence which I stacked with registax.
I've only got 2 other faint stars in shot, I've not been able to match up to any star charts. You can see other marks on the image which I'm sure are noise or artefacts showing movement as the images are stacked.
I think the scale of this image is out 4'arc lengthwise. Image 2 is a slightly stretched version showing the fainter stars a bit clearer.
In the region of Mars at that time we seem to have .
96 Aquari 10th mag
HD 220035 - 6.2 mag
phi Aquari - 5.7 mag
I've had a look at star charts around these possibles, but not managed to find any matches for the centre bright object, and the 2 fainter objects, or the close faint object.
So there is my puzzle. Much appreciated, if anyone could shed any light on this. I really hate it when I fail so ID things like this, but I'm really stuck now.
By the way, has anyone managed to image phobos or demos, must be a real challenge.