Abell 7

Constellation: Lepus

Abell 7 (a.k.a PK 215-30.1 and PNG 215.5-30.8) is a faint planetary nebula in the constellation Lepus, just South of Orion. Its fading white dwarf can be seen quasi in the middle of the nebula. It is located about 1’800 Ly from Earth, its diameter is about 8 Ly and is about 20’000 yrs old. The galaxy to (10 arcmin NW of the PN’s center) is MCG-03-13-058 (a.k.a. Leda 1661 and PGC 16611) is about 160 million Ly away. Link to interactive sky chart.

Dates:

This is derived from the outstanding data taken by Martin Pugh during October 2025 (Martin’s website: Remote Astrophotography with Martin Pugh (martinpughastrophotography.space).

His telescope is located in Chile (Observatory: El Sauce).

Colour palette is HOO with RGB stars.

Telescope & Mount:

Planewave CDK24 on a Planewave L600 mount.

Imaging:

Camera: Moravian C3-61000 (bin 2×2)

Data:
Astrodon Ha: 149x300s
Astrodon OIII: 121x300s

Stars:
Astrodon R: 20x180s
Astrodon G: 21x180s
Astrodon B: 21x180s

Total integration time: 25h 36′