Username:

Password:

Altair AstroDIO DehumidifiersAtik CamerasModern AstronomyDavid HindsNe3 Filters

Author Topic: 1711 - Sharpless 264 - The Lambda Orionis Ring  (Read 172 times)

0 Members and 1 Guest are viewing this topic.

Offline chris.bailey

  • Administrator
  • Galactic Poster
  • *****
  • Posts: 9558
  • If at last you do succeed, don't try again
    • Rosemount Observatory
1711 - Sharpless 264 - The Lambda Orionis Ring
« on: 10:16:50, 18 November, 2017 »
Its getting towards Orion time of year and its back to the obscure dim Sharpless objects on my target list. This is another big one that is very rarely imaged. Being part of the Orion Molecular Cloud it goes on beyond this image but I think I have captured most of what is considered to be Sharpless 264. Not very showy but little different in its structural form. For last night I stopped the little Samyang lens down to f2.8 and that does appear to have improved the peripheral stars a little

Imaged: 17 November 2017
Mount: Paramount MX
Scope: Samyang 135mm f2.8
Camera: SX814 3.5nm Ha filter
Guided: Unguided
Exposures: 33 x 600
Image Scale: 5.68"/pxl
Captured: SkyX
Processed: Pixinsight
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

Offline Nimbus

  • Poster God
  • *****
  • Posts: 1897
Re: 1711 - Sharpless 264 - The Lambda Orionis Ring
« Reply #1 on: 10:21:30, 18 November, 2017 »
Wow what a massive object. I had not seen this before so thanks for sharing. I think stopping the lens has improved things with good detail across the image and star shapes. ATB Jim
EQ8 Pro
TAK FSQ 106 EDX IV
ATIK 16200 Mono, Atik OAG, Atik EFW3 2" LRGB S2 8.0nm /Ha 3.5nm/O3 8.5nm, Baader Filters, Lodestar Guider, Focusmax4, Robofocus
Maxim DL6.13, CdC & Photoshop CS3E,

Offline chris.bailey

  • Administrator
  • Galactic Poster
  • *****
  • Posts: 9558
  • If at last you do succeed, don't try again
    • Rosemount Observatory
Re: 1711 - Sharpless 264 - The Lambda Orionis Ring
« Reply #2 on: 10:31:57, 18 November, 2017 »
Thanks Jim. I didn't start imaging until about 11:30 last night (lots of cloud early on) but conditions then were extremely good at just over an arc second FWHM. Seeing then may well have played a part but I do think f2.8 has improved things, it may also have helped with the 3.5nm Ha filter and the tendency for there to be a centre wavelength shift on really fast optics. I was reluctant to loose that extra bit of speed and didn't want to introduce the classic stopped down lens diffraction spikes from the diaphragm so used a couple of step down rings.

There are quite a few of these really big Sharpless Objects and that was the real reason for getting the little Samyang 135. A lot of them are only now coming into view at a reasonable hour and with decent altitude. There are at least 6 more on my priority list for the next few weeks, assuming of course the weather plays ball.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

Offline Nimbus

  • Poster God
  • *****
  • Posts: 1897
Re: 1711 - Sharpless 264 - The Lambda Orionis Ring
« Reply #3 on: 11:37:45, 18 November, 2017 »
I think what you have lost in speed you have gained in quality on what is still a very fast system. Therefore I would stick with this current approach.  Atb Jim
EQ8 Pro
TAK FSQ 106 EDX IV
ATIK 16200 Mono, Atik OAG, Atik EFW3 2" LRGB S2 8.0nm /Ha 3.5nm/O3 8.5nm, Baader Filters, Lodestar Guider, Focusmax4, Robofocus
Maxim DL6.13, CdC & Photoshop CS3E,

Offline Roger B

  • Administrator
  • Galactic Poster
  • *****
  • Posts: 8922
    • Capricorn1 observatory
Re: 1711 - Sharpless 264 - The Lambda Orionis Ring
« Reply #4 on: 17:31:48, 18 November, 2017 »
WOW,

That is a massive object,  bigger than 240 I think.     No wonder it's nit imaged that much

Well done

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 chris.bailey

  • Administrator
  • Galactic Poster
  • *****
  • Posts: 9558
  • If at last you do succeed, don't try again
    • Rosemount Observatory
Re: 1711 - Sharpless 264 - The Lambda Orionis Ring
« Reply #5 on: 17:44:16, 18 November, 2017 »
Rog

Its a LOT bigger than 240, which fits into this field of view quite easily and is probably my target for tonight...when it clears.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

 

ukbuysellRemote Imaging from AustraliaSharpSkyblank APTUKAI on Facebook
Powered by SMF 2.0.13 | SMF © 2006, Simple Machines LLC
DarkBreak by DzinerStudio. Theme modified by The UKAI Team

Page created in 0.159 seconds with 36 queries.
TinyPortal © 2005-2012