NGC 6778 is a planetary nebula (PN) located about 10,300 [1] light years away from the Sun in the equatorial constellation of Aquila. It is positioned 5° to the SSW of the prominent star Delta Aquilae. This nebula was discovered by German astronomer Albert Marth during the …

NGC 6778 is a bipolar planetary nebula with a short orbiting (~0.15 days) binary central star. It displays two systems of fast collimated outflows with a radial velocity of ~100 km/s. The equatorial ring is highly disrupted with many radial features like filamentary wisps and cometary knots.

2012年1月10日 · The planetary nebula (PN) NGC 6778 harbors a binary central star with a short orbital period and displays two systems of fast collimated outflows. In order to assess the influence of the evolution...

2011年8月20日 · We suggest that the interaction of the fast collimated outflows of NGC 6778 with its nebular envelope has resulted in the disruption of the nebular shell and equatorial ring. Key words: planetary nebulae: general / planetary nebulae: individual: NGC 6778 / ISM: jets and outflows / binaries: close.

NGC 6778 is a Planetary Nebula in the Aquila constellation. NGC 6778 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres in certain times of the year.

2015年10月26日 · We present new optical spectra of the nearby, bright, planetary nebula NGC 6778. The nebula has been known to emit strong recombination lines for more than 40 years but this is the first detailed study of its abundances.

2012年1月10日 · The planetary nebula (PN) NGC 6778 harbors a binary central star with a short orbital period and displays two systems of fast collimated outflows.

NGC 6778 (α = 19h 18m 24 94, δ = 01° 35′ 47 641, PNG034.506.7) was found to show unusually strong ORLs reflecting a high adf value (average value ∼20, see Jones et al. 2016). It hosts a close binary central star with an orbital period of 3.7hr, making it one of the shortest period binary central stars known (Miszalski et al. 2011).

2011年8月20日 · The planetary nebula (PN) NGC 6778 harbors a binary central star with a short orbital period and displays two systems of fast collimated outflows.

2023年9月11日 · Historical Identification: Per Dreyer, NGC 6778 (= GC 5942, Marth #399, 1860 RA 19 11 04, NPD 91 52) is "small, extended, ill-defined disc". PGC Designation Note : For purposes of completeness, LEDA assigned a PGC designation to this object, even though it isn't a galaxy; and a search of the database for that designation does return a result ...