LDN 1153, 1160, 1164, and 1165 in Cephus

First saw this area imaged a couple of years ago, and was really struck by LDN 1165 and 1164 in particular…always looked like a seahorse to me. Made a note to image it at some point. When I began looking at framing option, I saw 1160 and 1153 could add some interest to the field if I framed it so “the seahorse” was off to the left, so that became my goal.

Pretty happy with the end result on this. LRGB becomes more difficult to do well here every year, particularly when it’s as warm as it was early this month. Our 25C overnight lows made it difficult at best to get the sensor down to a reasonable temp.

Acquisition Details :

  • Data Acquisition

    • Acquired 2018-09-29 to 2018-10-12 from TriStar Observatory
    • After frame rejection
      • Lum : 205 x 300s
      • Red : 109 x 120s
      • Green : 109 x 120s
      • Blue : 108 * 120s
      • Total Integration Time : 33h 23m
  • Equipment

    • Stellarvue SV80ST
    • Astro-Physics Mach1 GTO
    • Atik 414ex
    • Orion 1.25" LRGB filters
    • QHY5L-II guidcam in a Starlight XPress mini filter wheel w/ OAG
  • Software

    • Sequence Generator Pro for capture session management
    • PHD2 for guiding
    • PixInsight for post processing
  • Plate Solve

      ===============================================================================
      Referentiation Matrix (Gnomonic projection = Matrix * Coords[x,y]):
      		   -0.000380617        +2.71178e-06           +0.505464
      		   -2.85559e-06        -0.000380646           +0.377226
      					 +0                  +0                  +1
      Projection origin.. [1335.001819 981.000515]px -> [RA:22 04 25.257 Dec:+59 03 10.27]
      Resolution ........ 1.370 arcsec/px
      Rotation .......... -0.421 deg
      Focal ............. 484.69 mm
      Pixel size ........ 3.22 um
      Field of view ..... 1d 0' 58.7" x 44' 48.5"
      Image center ...... RA: 22 04 25.257  Dec: +59 03 10.27
      Image bounds:
         top-left ....... RA: 22 08 23.753  Dec: +59 25 34.68
         top-right ...... RA: 22 00 24.306  Dec: +59 25 06.95
         bottom-left .... RA: 22 08 21.080  Dec: +58 40 46.25
         bottom-right ... RA: 22 00 31.941  Dec: +58 40 19.09
      ===============================================================================
2 Likes

Beeeeautiful!

1 Like

Thanks for the kind word!

Stunning image ! I will definitely give it a try when I get a chance.

1 Like

Thanks! It’s really quite a fun…and for me anyway, challenging…target.

www.mainsequencesoftware.com