Abell 78 Explained

Abell 78 is a planetary nebula located in the constellation of Cygnus. It has a fainter halo consisting mostly hydrogen, and an inner elliptical ring that is mostly made of helium.

The central star of the planetary nebula has a spectral type of [WC5], similar to that of a carbon-rich Wolf–Rayet star.^[1]

External links

• https://web.archive.org/web/20160401153809/http://crescent.astro.illinois.edu/projects/spitzer-pne/Abell_78_img.php
• https://www.astronomy-mall.com/Adventures.In.Deep.Space/abellcat.htm
• NOAO>Outreach>Planetary Nebula Sampler: Abell 78

Notes and References

1. 10.1051/0004-6361/202141916. Planetary nebulae in Gaia EDR3: Central star identification, properties, and binarity. 2021. González-Santamaría. I.. Manteiga. M.. Manchado. A.. Ulla. A.. Dafonte. C.. López Varela. P.. Astronomy & Astrophysics. 656. A51. 2109.12114. 2021A&A...656A..51G. 237940344.