PNG 025.3+40.8 IC 4593

A very faint, small and diffuse planetary nebula without clearly defined edges or discernible structure.

Observation notes

PNG 025 was a very faint planetary nebula and appeared only weakly against the background. The object was small and clearly diffuse, but without clearly defined edges or discernible structure. Visually, the nebula lay between two pairs of stars. One pair included HIP 79386, the double star STF 2016, with a separation of about 7.4″. The double star was a distinct and attractive feature in the field of view.

Visual documentation

Photographic documentation of IC 4593 at the time of observation — **Photographic documentation.** The image was captured through the telescope with a Nikon D6 at the time of observation and subsequently processed to approximate the object's visual appearance at the eyepiece. For this type of documentation, a single exposure of approximately 10–15 seconds is normally used.

Object location in the sky

Visible above the southern horizon around midnight in June.IC 4593 is marked in Hercules. The chart shows the object's astronomical position and nearby constellation lines in the J2000 coordinate system.

Sources for object data

The object data are rounded and based on the following sources:

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Published 9 August 2026 · Last revised 29 August 2026 ·
Permanent address: omegadome.com/en/observations/ic4593-2026-08-08.html