Thursday, March 26, 2026

20260325 Seestar S30 Messier marathon: Session one

Partially cloudy (maybe 2-3/10) sky, bright moon

Last time should be session zero, since this was the session I got the idea about a messier marathon.

So this is session one, I am going to capture a few open clusters.  Mainly a filling session, to catch some targets before it's getting too low or disappearing soon.

My first target is M36.  It is pretty close to the moon.  So I didn't spend much time with it, so 5 minutes first.  Less than optimal, will come back later if I have time.

My second target is M37.  Even closer to the moon.  Again, 5 minutes.  Less than optimal, will come back later.

My third target is M38 with NGC 1907, also close to the moon.  Again, 5 minutes.  Less than optimal and come back later.


Next one is M34, this is farther away from the moon.  But since it's just an open cluster, I spend 9 minutes on it.

Switching to M51 finally, one of the best targets of the tonight recommended by Seestar.  I will give it the rest of the observation time tonight.  At least 30 minutes, the one below was around 35 minutes:

Finally, accumulated for one hours of exposure.

Going from target to target quickly tonight, this is the feeling of running a marathon.

The sky is getting clearer, but it's time to sleep.

When the mini-observatory box is done, I could then leave the setup alone.

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