That night I wanted to test the Optolong L-Ultimate filter. It was the first clear night after 2 months, but it was really cold at -15°C (5°F) ! The cooling of the camera was almost a heater ;-).
Here are a few impressions from that night:
Set up at -8°C:
Power supply at -15°C
:
Decorated cables
:
And cooled camera:
Object description (wikipedia.org):
IC 443 (also known as the
Jellyfish Nebula and
Sharpless 248 (
Sh2-248)) is a galactic
supernova remnant (SNR) in the constellation
Gemini.
On the plane of the sky, it is located near the star
Eta Geminorum. Its distance is roughly 5,000 [url=mw-redirect=https://en.wikipedia.org/wiki/Light_year]light years[/url] from Earth.
IC 443 may be the remains of a
supernova that occurred 3,000 - 30,000 years ago.
The same supernova event likely created the
neutron starCXOU J061705.3+222127, the collapsed remnant of the stellar core.
IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
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