Can You Spot All the Galaxies in This Virgo Supercluster Photo?

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Discussion Overview

The discussion revolves around identifying and analyzing galaxies within a photo of the Virgo Supercluster. Participants share their observations and experiences related to imaging this region, including the challenges of capturing multiple galaxies and the technical aspects of their imaging process.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant mentions their goal to stitch together multiple image stacks to capture the entire Virgo region, sharing a specific frame that includes several galaxies.
  • Another participant estimates seeing 7-8 galaxies in the image, while others provide differing counts, with one claiming to see 12 and another suggesting 15.
  • A participant discusses the presence of faint lines in the image attributed to a passing airplane, asserting that one frame still holds statistical significance.
  • One participant shares a more comprehensive image that includes 9 or 10 Messier objects and at least 100 NGC objects, noting the ongoing process of stacking additional frames.
  • Another participant refers to a final assembly of the image, highlighting specific galaxies within the frame.
  • One participant humorously notes that there appear to be a few galaxies present in the image, indicating a light-hearted tone in the discussion.

Areas of Agreement / Disagreement

Participants express varying counts of visible galaxies, indicating a lack of consensus on the exact number present in the image. The discussion remains unresolved regarding the total number of galaxies identified.

Contextual Notes

Participants mention challenges related to weather conditions affecting their imaging efforts, as well as the technical aspects of combining multiple image stacks, which may influence the clarity and visibility of the galaxies.

Who May Find This Useful

Astronomy enthusiasts, astrophotographers, and individuals interested in galaxy identification and imaging techniques may find this discussion relevant.

Andy Resnick
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Virgo is favorably located right now (for me)- my goal for the next month or two is to stitch together a bunch of image stacks to get the entire region. Here's one 'frame' from last night, showing M84, M86, The Eyes, NGC 4388, 4402, 4461, 4458, 4477, 4459... you get the idea.

RGB-1_zpsmonkogi8.jpg
 
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Do I see 7-8 galaxies there?
 
a good bunch of little fuzzies :)
 
There's 12 easily visible galaxies in the image above. The faint lines are due to a passing airplane- 1 frame still has statistical significance! I've so far obtained 3 different fields of view, I think I need about 8-10 to really cover the region. This being cleveland, 8-10 clear nights over a 2 month period is not a sure bet... stay tuned!
 
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Yup. that's pretty cool :smile:

I can pick out an easy 15 fuzzies :)

That's one group I have yet to image
 
I only see like 12
 
Here's a first cut of the whole field of view, from 8 separate stacks fused together using Hugin:

virgo_filtered_small_zpsnr5dek3h.jpg


There's 9 or 10 Messier objects and at least 100 NGC objects present in this image. I'm still stacking some of the subframes and could acquire a few additional stacks around the periphery, but I'm not sure I'll have a chance before Virgo moves out of position... It's also about 10k x 12k pixels. I'll post the full image to my blog when it's done.

Next up... the globular cluster in Hercules...
 
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Here's the more-or-less final assembly, tweaked for viewing at highly reduced magnification:

virgo2x_zpszlmgtyzu.jpg


For reference, near the bottom-center is the 'siamese twins' pair of galaxies and near the top-center is M88.
 
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There appears to be a few galaxies there!
 

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