Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  4 Sgr  ·  7 Sgr  ·  9 Sgr  ·  B296  ·  B85  ·  B88  ·  B89  ·  HD164031  ·  HD164105  ·  HD164146  ·  HD164147  ·  HD164171  ·  HD164193  ·  HD164194  ·  HD164225  ·  HD164226  ·  HD164265  ·  HD164266  ·  HD164294  ·  HD164384  ·  HD164385  ·  HD164386  ·  HD164402  ·  HD164403  ·  HD164452  ·  HD164453  ·  HD164492  ·  HD164514  ·  HD164515  ·  HD164534  ·  And 252 more.
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Lagoon & Trifid (M8, M20) from suburban Chicago, Gerould Kern
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Lagoon & Trifid (M8, M20) from suburban Chicago

Getting plate-solving status, please wait...
Lagoon & Trifid (M8, M20) from suburban Chicago, Gerould Kern
Powered byPixInsight

Lagoon & Trifid (M8, M20) from suburban Chicago

Equipment

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Acquisition details

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Description

A second night of imaging yielded more data, making for a stronger presentation. This is a compilation of 60 images at 180 seconds each for a total of three hours. I used an IDAS NBZ UHS filter.

I finally got a patch of clear sky last night (June 22-23), so I took a shot at M8 (the Lagoon Nebula) and M20 (the Trifid Nebula). I established a new observation post in our south yard where I can shoot through a gap in the trees. For horizon-hugging objects in Sagittarius, I have a window of somewhere between 2-3 hours. This constellation hangs in the direction of downtown Chicago about 35 miles away, so the sky is bathed in light pollution.  Using my RASA 8, I only got about an hour and ten minutes, but the photo turned out reasonably well for a first attempt.

Comments

Revisions

  • Lagoon & Trifid (M8, M20) from suburban Chicago, Gerould Kern
    Original
  • Lagoon & Trifid (M8, M20) from suburban Chicago, Gerould Kern
    B
  • Final
    Lagoon & Trifid (M8, M20) from suburban Chicago, Gerould Kern
    C

B

Description: A second night of imaging yielded more data, making for a stronger presentation. This is a compilation of 60 images at 180 seconds each for a total of three hours. I used an IDAS NBZ UHS filter.

I finally got a patch of clear sky last night (June 22-23), so I took a shot at M8 (the Lagoon Nebula) and M20 (the Trifid Nebula). I established a new observation post in our south yard where I can shoot through a gap in the trees. For horizon-hugging objects in Sagittarius, I have a window of somewhere between 2-3 hours. This constellation hangs in the direction of downtown Chicago about 35 miles away, so the sky is bathed in light pollution. Using my RASA 8, I only got about an hour and ten minutes, but the photo turned out reasonably well for a first attempt.

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Sky plot

Sky plot

Histogram

Lagoon & Trifid (M8, M20) from suburban Chicago, Gerould Kern