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Contains:  IC 2177, Cone nebula, Christmas Tree cluster, NGC 2264, Horsehead nebula, IC 434, NGC 1990, M 42, Great Nebula in Orion, NGC 1976, Witch Head nebula, IC 2118, The star ιOri, The star Cursa (βEri), The star Mintaka (δOri), The star Saiph (κOri), The star Alnitak (ζOri), The star Alnilam (εOri), The star Bellatrix (γOri), The star Betelgeuse (αOri), The star Procyon (αCMi), The star Rigel (βOri), Part of the constellation Orion (Ori), Part of the constellation Monoceros (Mon), Part of the constellation Eridanus (Eri)
Getting plate-solving status, please wait...
Winter is leaving, 


Winter is leaving

Winter is leaving

Technical card

Resolution: 8082x5170

Dates:Jan. 2, 2019Jan. 3, 2019Jan. 5, 2019Feb. 2, 2019Feb. 25, 2019Feb. 26, 2019Feb. 27, 2019Feb. 28, 2019

Hutech IDAS LPS D1 clip Sony A7: 250x30" ISO320
Hutech IDAS LPS D1 clip Sony A7: 1671x30" ISO3200

Integration: 16.0 hours

Avg. Moon age: 25.03 days

Avg. Moon phase: 25.56% job: 2586382

RA center: 97.151 degrees

DEC center: -0.968 degrees

Pixel scale: 18.985 arcsec/pixel

Orientation: 350.262 degrees

Field radius: 25.299 degrees

Locations: Home, Sèvremoine, France

Data source: Backyard



As the winter sky is slowly leaving, I present you my mosaic of the winter nebulae.

It was a very tough work, especially for matching all the panels because of the different sky quality (most of the time high clouds this winter).
So, 12 panels, with variable integration time, from 80 to 240 x 30 sec per panel.
Pictures taken in January and February.

Matching is not perfect, but I'm quite satisfied wth the result considering the sky quality.
It needs one more panel to avoid the lower Sirius reflection ;-)

The original mosaic is almost 85 mpx. This picture is reduced at 70% with 70% jpeg compression. It may take some time to be completely loaded.



License: None (All rights reserved)

Sky plot

Sky plot


Winter is leaving,