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NGC 5982 (Dra), Draco-Trio
Click on the image for a larger version
| Date/Site: |
27. June and 8. July 2019. Remote observatory on the AAR club's site in Presberg |
Exposure/
Filter: |
R: 66 x 180 seconds,
G: 67 x 180 seconds,
B: 65 x 180 seconds,
L: 95 x 180 seconds (-20°C) |
| Camera: |
QSI 632 with Astronomik Type II-filters |
Optics/
Instrument: |
250mm f/4 Newton with Baader RCC1 on 10Micron GM1000 HPS |
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Guiding: Lodestar attached to a 61mm-finder,
focusing: Microtouch and FocusMax,
data acquired remotely using CCD-Commander and MaximDL 6,
processing: PixInsight 1.8 |
A fine group of galaxies showing distinct morphologies: NGC 5985 is a SAB(r)b-spiral with an active nucleus, classifying her as a Seyfert-galaxy. NGC 5982 is an elliptical galaxy (E3), which is the result of a merger of at least two galaxies. It shows tidal shells that are dynamically decoupled from the nucleus and two different populations of globular clusters. NGC 5981 is a spiral seen edge on with a fine dust-lane.
This image shows that not the sheer amount of integration-time but the local seeing is the main limiting factor.
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© Friedhelm Hübner, last revision: 03.12.2023