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Solar Gravity 2018

Author Topic: A Late Horsehead  (Read 529 times)

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Offline allyman

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A Late Horsehead
« on: 12:52:44, 11 March, 2018 »
Hi Folks,

I thought I would capture the Horsehead before it's gone for the Summer.  90mins each RGB channel on MI G4-16000, Scope: 14.5" Conical Newt, Astrodon filters.

GrahamM.



Offline gdryland

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Re: A Late Horsehead
« Reply #1 on: 19:25:44, 12 March, 2018 »
Very nice image Graham. :thumbup:
Takahashi Epsilon ED180
Zenitstar 66
Atik 4000LE with 4021 chip hybrid, Atik 450, Atik314L+
EQ6 Observatory mount, with MkIII EQ6 Wedge and Rowan belt drive
True Tek  motor filter wheel
Baader 2" Ha, O3, S2, LRGB
Astronomik 1.25" Ha, O3, S2, LRGB
1.25" 13% Moon Filter

Offline Peter Shah

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Re: A Late Horsehead
« Reply #2 on: 20:22:51, 12 March, 2018 »
beautiful shot,
an AG12 and a few other bits

Offline allyman

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Re: A Late Horsehead
« Reply #3 on: 09:42:24, 14 March, 2018 »
Hi Folks,

Many thank for the  positive comments and for looking.

GrahamM.

Offline Roger B

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Re: A Late Horsehead
« Reply #4 on: 19:17:17, 16 March, 2018 »
Really nice capture

Rog
Scopes - TS65q, W/O 110 Triplet
Mount - EQ6 PRO via  Eqmod,  Rowan belt modded
Cameras - SX694, QSI583WSG,Lodestar Guidecam, GP-Cam, QHY5II.
TS 9mm OAG
Quantum 7x1.25 EFW, Baader LRGB,Ha,OIII,SII Filters 
Quark chromo

SGPro, Pixinsight.

************AND NO TIME TO USE IT************

Offline Annie

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Re: A Late Horsehead
« Reply #5 on: 21:24:20, 16 March, 2018 »
What a fabulous Horsehead!

Annie
Pulsar Observatory; NEQ6/EQ6 wedge; HEQ5 Pro; TS Star 71 Astrograph; Takahashi FSQ 106ed; Skymax 150 Pro; Nikon D600; Canon 550D modified; Canon 5D Mk11; ZWO ASI120 MM-S; Lacerta MGEN stand alone guider.

Offline allyman

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Re: A Late Horsehead
« Reply #6 on: 11:41:20, 18 March, 2018 »
Many thanks Rog and Annie for the positive comments. The Horsehead is just about everybody's favourite and I've tried it a few times, but this version with Astrodon filters has proved the best control of Alnitak so far. I had used the latest set of Baader filters previously but I got a halo though I can't be certain it wasn't down partially to atmospherics. Other images with the Baader filters also showed halos on the brighter stars like Deneb  etc. Of course the longer the integration time the greater the chance of a halo though not much chance of that imaging in the West of Scotland. I know there has been whole threads on filters vs filters  across many forums and the comment above is just my take on it.

The image was processed in Pixinsight.

GrahamM.   

Offline clive

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Re: A Late Horsehead
« Reply #7 on: 13:15:52, 18 March, 2018 »
Supurb image
Clive

Offline allyman

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Re: A Late Horsehead
« Reply #8 on: 09:27:01, 21 March, 2018 »
Hi Clive,

Thank you.

GrahamM.

Offline Terrierist

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Re: A Late Horsehead
« Reply #9 on: 20:58:48, 23 March, 2018 »
Thanks for sharing, inspirational stuff.

Offline salfranc

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Re: A Late Horsehead
« Reply #10 on: 19:58:39, 02 April, 2018 »
Everything is spot on. Great image.
Orion OMC 140, GP-DX& skysensor 2000,  EQ6 pro with 4' apo refractor,76mm Apo, 12" Reflector, Canon 300D, SC3 & ART285

Offline mikeobrien

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Re: A Late Horsehead
« Reply #11 on: 00:44:11, 10 May, 2018 »
Fab image, can I ask what's the configuration of a conical Newt?

Sent from my WAS-LX1A using Tapatalk

Mike

Offline midnight_lightning

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Re: A Late Horsehead
« Reply #12 on: 08:15:18, 10 May, 2018 »
Stunning
HEQ5 Pro (Belt Mod), Sky Watcher Esprit Pro 80/400, SX Mini Filter Wheel with OAG - Lodestar X2, SX814, Software - SGPro, PHD2, Stellarium (Scope), EQMOD, DSS, Star Tools.

Offline allyman

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Re: A Late Horsehead
« Reply #13 on: 09:52:55, 10 May, 2018 »
Hi Folks,

Sorry I missed some of the replies ... many thanks to all.

A conical newt, or should I say a conical mirrored newt is a mirror type manufactured by Robert Royce ...details here.

http://www.rfroyce.com/conical/

The rest of my scope and focuser is DIY, the Wynne corrector is a an Orion Optics one completely reworked and machined because the mechanical axis and optical axis did not appear to be orthogonal, I can burst into flames thinking about that episode. A good test for a Wynne corrector is to sit the corrector on a fixed cradle so that the corrector can rotate by hand whilst shining a fixed laser through the corrector onto a distant wall. If the spot stays relatively still all is well but if the spot scribes a large arc all is not well. I laser collimate through the corrector in place also with a dramatic improvement in star shape since the corrector rework.

Graham.

 

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