The Milk Carton, The Witch Head and the Astrobin Forum (Brian Boyle)

Celestial hemisphere: Southern · Constellation: Eridanus (Eri) · Contains: 19 bet Ori · 20 tau Ori · 3 iot Lep · 61 ome Eri · 62 b Eri · 63 Eri · 65 psi Eri · 66 Eri · 67 bet Eri · 68 Eri · 69 lam Eri · Cursa · IC 2118 · IC 398 · IC 399 · LBN 916 · LBN 923 · LBN 945 · LBN 959 · LBN 968 · LBN 975 · LBN 980 · LDN 1615 · LDN 1616 · NGC 1683 · NGC 1684 · NGC 1685 · NGC 1694 · NGC 1699 · NGC 1700 · And 34 more.

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The Milk Carton, The Witch Head and the Astrobin Forum

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The Milk Carton, The Witch Head and the Astrobin Forum

The first good night in over 3 weeks, although still ended prematurely at 2.30am by heavy dew.

Still getting to grips with my new Nikon 200mm f2 lens, and wanted to try out the Witches Head/LDN1615 as the two map onto a 200mm Fram quite nicely.

Thanks to helpful advice received on the Astrobin forum, and a cut-out piece of plastic from a milk carton, I was able to wedge open the aperture ring at around f/2.6 on my new Nikon 200mm f2 lens. Even at the aperture the thing is fast - and the image quality is noticeably better. I might stop it down a little more, but given that the nights are now quite short here (4hours), I really need every photon in a dark sky if I am going to capture the wonders of Orion over the next lunation or two.

Only 3.5 hours possible in total, but the final result goes quite deep.

Original
B
Final
C

C

Description: Better star reduction and improved stretch

Uploaded: ...

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New Zealand Astrophotography

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Status	Advanced success
Started	...
Astrometry.net job	5605931
PixInsight job	GASCHUNZI0AXF1OJXT6Z4YR8RJVEOR7C
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h05m42s.61
RA (top/left)	04h53m50s.13
RA (top/right)	05h20m07s.11
RA (bottom/right)	05h17m21s.34
RA (bottom/left)	04h51m34s.15

Dec (center)	-07°16′35″.7
Dec (top/left)	-12°17′47″.0
Dec (top/right)	-11°52′23″.9
Dec (bottom/right)	-02°13′22″.8
Dec (bottom/left)	-02°38′10″.9

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The Milk Carton, The Witch Head and the Astrobin Forum

The Milk Carton, The Witch Head and the Astrobin Forum

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The Milk Carton, The Witch Head and the Astrobin Forum

The Milk Carton, The Witch Head and the Astrobin Forum

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