MDM Observatory 1.3m Telescope Observing Report for 2025 Sep 13

Observer(s): John Thorstensen
Institution(s): Dartmouth

Instrument: Templeton direct

Worked for 8 hours (most of the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from 3AM until end.
   Beg: Seeing 1.5 arcsec, Clear, Winds Light & Variable
   Mid: Seeing 1.5 arcsec, Clear, Winds Light & Variable
   End: Patchy Clouds, Winds Calm

Observing Summary:

A very nice night until a raft of mid-level cumulus clouds showed
up abruptly at 3 AM.  I soldiered on for a while, but eventually
called it.  A substantial sucker hole came through as I was
returning from having topped off the 1.3m dewar, with lovely 
views of the last-quarter moon, Orion, and Sirius. 

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Submitted on 2025 Sep 14 [5:06:26]