NIKON D5200What system you use? What is the exif data of your picture? That looks like a single exposure.
I have already explained how to shoot startrail in this forum, if you search for it you can find.
Hi Punto,NIKON D5200
Exposure - 30s
ISO - 4000
focal length - 18mm
max aperture - 3.6
EXIF version - 0230
The star trails is composed from 69 shots.
I didnt used any intervalometer but uses interval shooting feature of Nikon.Hi Punto,
If you notice, your star trail has dotted lines. To eliminate/reduce the gap between the dots you need to keep the static time between the exposure as short as possible. For you D5200, it should be approximately 4-5 secs, just enough to save the file to your memory card.
You can also remove the dots in Photoshop by applying circular rotation. This will be trial and error till you get the correct angle of rotation.
I would also suggest to include the foreground and make a good composition. Latter you'll have to select one picture and composite the foreground with your star trail.
PS:Which intervalometer are you using?
If not tripod then you need some type of support for the camera, however it will be more pain to shoot. So a tripod is a must.I didnt used any intervalometer but uses interval shooting feature of Nikon.
Also Is there any hack for shooting star trail without using tripod?
This time I am going for D3400 which does not support intervalometer.If not tripod then you need some type of support for the camera, however it will be more pain to shoot. So a tripod is a must.
You also need an external intervalometer to avoid touching the camera and have more control.
You can get an excellent app for Android called qdslrdashboard. It is worth every bit of the 10 dollars it cost. You can do lot of stuff in this.