M5

kio

47691

Deep Sky

Apr 24th, 2023

1670

IC 4540NGC 5904IC 4537

Resolution:: 3124x2292 px
File size:: 9722 KB

Show astrometry on hover

Technical information

Telescope/Lens: Nikkor 300mm f/4.5 ED Lens
Camera: Olympus PEN E-PL7
Mount: Homemade Astrotracker
Software: DeepSkyStacker, FITStackerV13, Adobe Photoshop

Location: Липки, Тульская область, Россия

Light pollution

Yellow, Bortle 5 zone

Date taken: Apr 23rd, 2023

Exposure

35 × 300″ · ISO/Gain: 400 · Apr 23rd, 2023

Total exposure: 2 h 55 m

Comments

scuttum

Without guiding? It holds for 5 minutes without any smearing, not even a pixel? That's a good astrotracker, especially for a homemade one.

Apr 26th, 2023

kioReply to scuttum

Thank you. In this case, out of 44 frames, 9 had to be discarded. The tracker is performing quite accurately; the decisive factor is the precision of the polar alignment.

Apr 26th, 2023

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