The Horsehead Nebula / Barnard 33 (Francesco)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 sig Ori · 50 zet Ori · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 434 · IC 435 · NGC 2023 · NGC 2024 · Orion B · Sh2-277 · The star Alnitak (ζOri) · The star σOri

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The Horsehead Nebula / Barnard 33

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The Horsehead Nebula / Barnard 33

February and the end of January are often quite generous and bring some clear skies, like this year.

But it have been very cold, -17C, -18C for the most. I missed two clear nights due to technical problems, one was my fault and one was the cold (I changed filter and maybe some humidity came in between the filter and the camera, so after 15 subframes it started to developed a frost-line from the bottom to the middle of the frame (probably on the filter), the day after I dried up it with a hairdryer and the problem did not uppare again).

By the way, last clear night, (the 13 February), I was taking subs of the Leo Triplet after this object and noticed that the dew-heaters were not working and frost built up on both the telescope's and guidescope's lenses and on the dew-heater straps too.

I use a Pegasus pocket power box and Astrozap straps and never had this problem before. The temperature had dropped to -17, maybe too cold for them? Let me know if you too have had a similar problem.

Anyway, I managed to take 35 subframes of this beautiful object before it disappeared behind trees (the object is low on the horizon from my location and I have trees to the south with a narrow "window" between them.)

Clear skies to everyone and stay safe!

D

Description: Removed some green-cast.

Uploaded: ...

ASI 071 mcc
The OSC Club (One Shot Camera)

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Status	Advanced success
Started	...
Astrometry.net job	4258528
PixInsight job	LWZU5M2Y1QX1TGV1JNWJIQUND0NSJ929
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h41m02s.14
RA (top/left)	05h42m57s.94
RA (top/right)	05h37m28s.39
RA (bottom/right)	05h39m06s.10
RA (bottom/left)	05h44m35s.48

Dec (center)	-02°26′58″.6
Dec (top/left)	-01°41′05″.7
Dec (top/right)	-02°16′55″.9
Dec (bottom/right)	-03°12′43″.6
Dec (bottom/left)	-02°37′00″.0

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The Horsehead Nebula / Barnard 33

The Horsehead Nebula / Barnard 33

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The Horsehead Nebula / Barnard 33

The Horsehead Nebula / Barnard 33

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