The constellation of Virgo sets behind Mount Carega (gigiastro)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: 30 Vir · 31 Vir · 32 Vir · M 100 · M 60 · M 84 · M 86 · M 87 · M 88 · M 89 · M 90 · NGC 4216 · NGC 4302 · NGC 4321 · NGC 4374 · NGC 4406 · NGC 4438 · NGC 4486 · NGC 4501 · NGC 4552 · NGC 4569 · NGC 4649 · The star 20 Vir · The star 27 Vir · The star 33 Vir · The star d1 Vir · The star d2 Vir · The star ρ Vir · Virgo Galaxy

The constellation of Virgo sets behind Mount Carega

187x30s ISO 800 (lens aperture set to f/4): the first 168 with the tracking motor engaged,
the last 19 with the engine off to obtain static images of the foreground.
The final processing would have had to create, by tilting the field of 45 °, the image
of the Virgo constellation setting behind Monte Carega.
RESULT:
Only in the first 80 poses are stars perceived (in a field constantly tormented by veils of clouds);
then the stars are replaced, approaching the horizon, by a diffuse glow, which becomes intolerable
with overexposure to building lights...
"SOLUTION":
The processed image of the first 80 exposures (with the stars) was brought exactly into place
expected on the occasion of the imminent dive of the M 87 behind Cima Carega and, to the "burned"
image of the static poses mentioned above, was replaced (with a suitable mask!),
the one obtained with a single exposure made at the morning twilight of another day,
exactly from the same location.
The mountains are located 91 km away from the shooting location.

Final
Original
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B

Title: Annotated

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Status	Basic success
Started	...
Astrometry.net job	6116794
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The constellation of Virgo sets behind Mount Carega

The constellation of Virgo sets behind Mount Carega

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The constellation of Virgo sets behind Mount Carega

The constellation of Virgo sets behind Mount Carega

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