Celestial hemisphere:  Southern  ·  Constellation: Serpens (Ser)  ·  Contains:  Checkmark Nebula  ·  IC 4701  ·  IC 4706  ·  IC 4707  ·  LDN 357  ·  LDN 359  ·  LDN 376  ·  Lobster Nebula  ·  M 17  ·  M 18  ·  NGC 6596  ·  NGC 6605  ·  NGC 6618  ·  PGC 202135  ·  PGC 202159  ·  PGC 202168  ·  PGC 202230  ·  PGC 202232  ·  PGC 202235  ·  PGC 202245  ·  PGC 202253  ·  PGC 202272  ·  PGC 202273  ·  PGC 202274  ·  PGC 202292  ·  PGC 202306  ·  PGC 202318  ·  PGC 202326  ·  PGC 202343  ·  PGC 202348  ·  And 11 more.
Getting plate-solving status, please wait...
Two nebulae - NGC 6618 and IC 4701 in widefield, Ian Dixon
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Two nebulae - NGC 6618 and IC 4701 in widefield

Getting plate-solving status, please wait...
Two nebulae - NGC 6618 and IC 4701 in widefield, Ian Dixon
Powered byPixInsight

Two nebulae - NGC 6618 and IC 4701 in widefield

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Description

Omega Nebula - my atlas enthuses: "M17 is located in the rich star fields of the the Milky Way in Sagittarius. It can be found easily, along with its apparent neighbor, M 16, the Eagle Nebula. Starting from Altair (α Aql), follow δ Aql and λ Aql to γ Sct; M 17 is just over 2° SW of this star, and M 16 lies 2° NW. With a visual magnitude of 6.0, M 17 is visible to the naked eye from low latitudes under good observing conditions."

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Another trip with a small group of friends out to a remote dark site about 60km east of the city. The two Kevins, Ryan and David - thanks to you for showing me this great dark site.

The evening was calm and the seeing was quite good. Very good transparency. The idea was to warm up with a couple of DSOs and then catch Neowise at the end of the session.

I went back for some extra work on M17 (the swan, the omega, the checkmark or NGC 6618). Its a fascinating bright nebula.

Unguided with about 30 min integration.

Thanks for looking.

Comments

Revisions

  • Two nebulae - NGC 6618 and IC 4701 in widefield, Ian Dixon
    Original
  • Two nebulae - NGC 6618 and IC 4701 in widefield, Ian Dixon
    B
  • Final
    Two nebulae - NGC 6618 and IC 4701 in widefield, Ian Dixon
    C

B

Description: Stacked in APP and the initial stretch - no processing.
From there, the Workflow is: -> PS for black point -> Lightroom for tweaking.

Uploaded: ...

C

Description: I started this version from the beginning with additional care to resist my instincts to wield the exposure slider with the touch of a blacksmith. 🙂

I removed the greens in PS and tried to deemphasize my stars by 30%.

Please let me know what you think... this process went well away from my normal procedure.

Uploaded: ...

Sky plot

Sky plot

Histogram

Two nebulae - NGC 6618 and IC 4701 in widefield, Ian Dixon