Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Hemisphere:  Northern  ·  Contains:  5 alf Cep  ·  Alderamin  ·  B152  ·  B153  ·  B154  ·  B157  ·  B160  ·  B161  ·  B162  ·  B163  ·  B354  ·  B364  ·  B365  ·  B366  ·  B367  ·  B368  ·  Erakis  ·  IC 1396  ·  IC1396  ·  PK097+03.1  ·  PK098+02.1  ·  PK098+04.1  ·  PK100+04.1  ·  Sh2-128  ·  Sh2-129  ·  Sh2-131  ·  The star Alderamin (αCep)  ·  The star Garnet Star (μCep)  ·  VdB140  ·  VdB142  ·  And 1 more.
Getting plate-solving status, please wait...
From the elephant trunk to the bat and a hint of Outters 4 (IC1396, SH2-129, OU-4, VDB-140), 


            Sven Hoffmann
Powered byPixInsight

From the elephant trunk to the bat and a hint of Outters 4 (IC1396, SH2-129, OU-4, VDB-140)

Technical card

Imaging telescopes or lenses: Samyang 135mm f/2

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: SkyWatcher AZ-EQ5 GT

Software: Pleaides Astrophoto PixInsight 1.8 Ripley  ·  Sequence Generator Pro  ·  Photoshop CC  ·  Straton  ·  Astro Pixel Processor

Filters: Baader 7nm Ha  ·  Baader 8.5nm OIII

Accessory: ZWO EFW 8x 1.25"

Dates:Oct. 5, 2018Oct. 6, 2018

Baader 7nm Ha: 167x120" (gain: 139.00) -20C bin 1x1
Baader 8.5nm OIII: 174x120" (gain: 139.00) -20C bin 1x1

Integration: 11.4 hours

Darks: ~16

Flats: ~16

Flat darks: ~16

Avg. Moon age: 26.06 days

Avg. Moon phase: 13.26%

Bortle Dark-Sky Scale: 5.00

Mean FWHM: 7.00

Temperature: 10.00 job: 2307621

RA center: 21h 25' 8"

DEC center: +58° 56' 47"

Pixel scale: 6.048 arcsec/pixel

Orientation: 128.394 degrees

Field radius: 4.643 degrees

Resolution: 3237x4485

Data source: Backyard


Hi everyone,

I had been looking around again for interesting compositions where I could combine multiple multiple objects and image them together and I found this when experimented around with SGPs framing and mosaic wizard.

Unfortunately there was still a little tilt in my setup when I shot this which I have resolved as well as I can now. I'm not entirely happy with the Samyang 135mm f/2 lens to be honest because the stars do not look too good in the corners but I seem to be out of options, it's just the way it is and I have not seen many better samples out there. It may not be as good as the Esprit, but you can still take some good images with it :) I stopped it down to pretty much exactly f/3.

I am a little disappointed that I could not get OU-4 imaged well, there is just a hint of it. Even without the moon in the sky the 8.5nm filter just does not cut it from my location :( Sooner or later I see 3nm filters in my future, if they were't so extremely expensive.



Sven Hoffmann
License: None (All rights reserved)

Sky plot

Sky plot


From the elephant trunk to the bat and a hint of Outters 4 (IC1396, SH2-129, OU-4, VDB-140), 


            Sven Hoffmann