IC 4642
| Nebula | |
|---|---|
 The IC 4642 nebula. | |
| Observation data: {{{epoch}}} epoch | |
| Class | Planetary nebula |
| Right ascension | 17h 13m 51s |
| Declination | -55 25’ 39” |
| Notable features | Helium and Nitrogen depleted |
IC 4642 is a planetary nebula located in the constellation of Ara. It is elliptical in shape with multiple shells. It is depleted in the elements helium and nitrogen.[1][2]
Central star
[edit]The central star in IC 4642 is a variable star with no definitive spectral classification. It has been referred to as an absorption line star. It may be accompanied by a sub-stellar companion object.[1]
References
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- ^ a b Mohery, Mahmoud; Ali, Alaa; Hamam, Kholoud Ahmed; Khames, Aya Atef; Alsubaie, Abdullah Saad (2025-05-13). "Uncovering the integral spectral characteristics of the planetary nebula IC 4642". Scientific Reports. 15 (1): 16539. doi:10.1038/s41598-025-00168-2. ISSN 2045-2322.
- ^ "IC 4642 - Planetary Nebula in Ara | TheSkyLive.com". theskylive.com. Retrieved 2025-05-13.