Stars last night. Also something weird

OK so i was out shooting the stars last night, hoping to get a few meteors. Well instead i got some weird red streak on the bottom of my shots. I have no idea what it is, or where its from. Here are the specs from last nights shots. I used my 24-105L, i took a couple shots at full zoom and the red streak is not there. They only show up when im zoomed out to 24mm. I also know it was not a red light from anywhere near me because i took different shots that were pointing in different directions. Im completely stumped by this, because its not in any normal shots (ones that are not long exposures). So any help would be great. I also have a uv filter on the lens. Also, the sensor was cleaned beforehand so i know it wasnt dirty.

aliens. they're coming.

Even though your camera angle and subject has changed, the object is in exactly the same place. I am guessing it is a hair, illuminated by a LED inside or outside the camera.

Alternatively, could it be a crack in your lens or even in the CMOS chip or filter glass, again lit by a LED somewhere?

Baz.

now that i take a closer look, there is a tiny tiny almost like a bubble in my filter. il take it off, and do another couple tries tonight to see what happens.

I was going to suggest taking the filter off and retesting.

I think this makes post number 4,723 where people are posting strange things in their photos due to a UV filter. Why the heck does everybody use them?

Who cares? Sweet pic of the Milkey Way!

Often UV filters are recommended to "protect" the front lens assembly in case of accident etc.

Yes and often they cause ghosting and other issues. The only time I can conceivably see to use a "UV" filter (all DLSR lenses/sensors provide adequate filtering of UV) is if you were in a high risk situation. Otherwise leave the UV off. Keeping the UV on all the time is akin to being a biker and wearing your helmet wherever you go on or off bike. "UV" filters are applicable in appropriate situations - i.e. in a dust storm, near/in the ocean with a weather proof body, close ups of mud wrestlers etc.

If you want to protect your front element, keep your hood on. If your using an UWA then be more careful. I used to keep a UV on all my lenses until I got frustrated with the fact that I negated the IQ by keeping them on. I was spending way too much time PP my pics due to "UV" filter issues than actually keeping my lenses "safe". I will admit that having a "UV" filter on while in White Sands National Monument during a sandstorm was useful, but most other times it just caused too many issues. Again this is my opinion. I am sure you will hear about a bizillion other stories of how the "UV" filter took one for the team when a long branch reached in through the hood and toasted the menscius (sp) lens.

edit: another reason to use a hood during astrophotography is to prevent rapid cooldown of your lens. The hood will prevent the rapid heat transfer from your front lens to the cosmos thus causing condensation. I have been able to image/view a few hours longer by maintaining a hood on my camera/telescopes then by going bare. So another reason to utilize a hood - which can be constructed from a mere black flexible foam sheet obtained from a hobby store (note: this will NOT protect your lens as inferred from the above - you would need a hood made of sturdier materials)

Update: It was the crappy Canon uv filter i had on there. I usually take it off when shooting at night, but i forgot. Took some new shots last night and i will post them later after i edit. Thanks for the nice compliment on the photo. Thanks again for the help guys.