NGC 1535

NGC 1535

Emission nebula
Planetary nebula
NGC 1535 using the 0.8m Schulman Telescope from the Mount Lemmon SkyCenter
Observation data: J2000 epoch
Right ascension	04^h 14^m 15.782^s[1]
Declination	−12° 44′ 21.68″[1]
Distance	5500–7500 ly   (1740–2310[2] pc)
Apparent magnitude (V)	10.5[1]
Apparent dimensions (V)	0.650′ × 0.611′[1]
Constellation	Eridanus
Designations	2MASX J04141578-1244216, IRAS 04119-1251, PN G 206.4-40.5, PK 206-40.1, dML87 112, UITBOC 627, VERA J0414-1244

NGC 1535, also known as Cleopatra's Eye,^[3] is a planetary nebula in the constellation of Eridanus, discovered by William Herschel on February 1, 1785.^[4] It is very similar to the Eskimo Nebula in both color and structure but the central star can be quite difficult to observe visually.^[5] The object is included in the Astronomical League's Herschel 400 Observing Program.^[6]

At the center of NGC 1535, there is an O-type star with a spectral type of O(H)5.^[7]

References

1. "NGC 1535". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 11 July 2015.
2. Smith, H. (9 April 2015). "On the distances of planetary nebulae". Monthly Notices of the Royal Astronomical Society. 449 (3): 2980–3005. arXiv:1409.3422. Bibcode:2015MNRAS.449.2980S. doi:10.1093/mnras/stv456.
3. Stoyan, Ronald; Schurig, Stephan (2014). interstellarum Deep Sky Atlas. Erlangen: Cambridge University Press; Oculum-Verlag GmbH. ISBN 978-1-107-50338-0. OCLC 920437579.
4. Seligman, Courtney. "Celestial Atlas: NGC Objects: NGC 1500 - 1549". cseligman.com. Archived from the original on 1 January 2016. Retrieved 11 July 2015.
5. "Best of AOP - Planetary Nebulae: NGC 1535". Caelum Observatory (mirror of NOAO/AOP. NOAO. Archived from the original on 13 July 2015. Retrieved 11 July 2015.
6. "The Herschel 400 Club Observing List in New General Catalog (N.G.C.) Number Order" (PDF). The Astronomical League. Retrieved 2024-03-05.
7. González-Santamaría, I.; Manteiga, M.; Manchado, A.; Ulla, A.; Dafonte, C.; López Varela, P. (2021). "Planetary nebulae in Gaia EDR3: Central star identification, properties, and binarity". Astronomy & Astrophysics. 656: A51. arXiv:2109.12114. Bibcode:2021A&A...656A..51G. doi:10.1051/0004-6361/202141916. S2CID 237940344.

External links

• Media related to NGC 1535 at Wikimedia Commons
• "NGC 1535". Mt. Lemmon SkyCenter. University of Arizona. Archived from the original on 2016-08-26. Retrieved 2015-12-26.
• "Cleopatra's Eye (NGC 1535)". Observing at Skyhound.