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Final drawing:

NGC 2997

NGC 2997

Drawing data

Object(s):
NGC 2997 Ant GX
Date(s) of observation:
2016.05.07/08. (Hakos)
2016.05.08/09. (Hakos)
2016.05.09/10. (Hakos)
Place(s) of observation:
Hakos Astrofarm, Namibia (1835m amsl.)
Telescope(s) used:
16" f/4.5 Newtonian (Dobson)
Enlargement(s) used:
180x (10mm Delos), 225x (8mm Planetary)
Author / Observer:
Peter Kiss

Description

NGC 2997 drawing inverted into positive.
NGC 2997 drawing inverted into positive. Peter Kiss

The observers of the Souhern Hemisphere can call themselves lucky to be able to access such beauties in the sky. You don't need to struggle for hours to spot the barely visible details. You just take a look into the eyepiece and an incredible spiral galaxy greets you. NGC 2997 is really bright (9.4m) and quite big (more than 8'). Furthermore the spiral arms show a lot of contrast. They are not as tenuous as those of NGC 6744.

The nucleus is very bright and non-stellar. This is surrounded by a bright circular region. The two main arms start a little further out. Numerous details are visible in the arms. A couple of the spots are inhomogenious. The bifurcation of the right arm is a spectacular detail as well near the 11.4m bright foreground star. The other foreground stars are in the 15-16m range. A lot could be written about the position of the bright parts of the arms, areas with more or less contrast, etc. But I think the drawing speaks for itself. These are moment that remain etched into your mind.

Comparison with the photograph

Photo of NGC 2997 made with the HAWK-I detector mounted on the 8.2 meter Yepun unit of the VLT telescope of the European Southern Observatory (ESO).
Photo of NGC 2997 made with the HAWK-I detector mounted on the 8.2 meter Yepun unit of the VLT telescope of the European Southern Observatory (ESO). Credit: ESO/P. Grosbøl. Source: eso.org
Drawing of NGC 2997 made with a 16
Drawing of NGC 2997 made with a 16" telescope. Peter Kiss

You can see the ESO (European Southern Obervatory) photo of NGC 2997 on the left. The photo was taken with the HAWK-I instrument mounted on the 8.2 meter 4th (Yepun) unit of the VLT. The HAWK-I operates in near infrared so the photo was not taken in visible light. This questions the whole point of the comparison. But the morphology of the galaxy is not really different in visible and near infrared so it might be worth including it here. I cropped my drawing to show a similar field as the ESO photo.

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