Sh 2-78

Last updated
Sharpless 2-78
Nebula
Observation data: epoch
Right ascension 19h 03m 08s
Declination +14° 06′ 58″ [1]
Distance2170  ly
Apparent magnitude (V)14.0
Apparent diameter27' [2]
Constellation Aquila
Physical characteristics
Radius 7.6 [3]  ly
DesignationsPN G046.8+03.8
See also: Lists of nebulae

Sh 2-78 is a planetary nebula in Aquila. [4]

It was discovered by Stewart Sharpless while assembling his catalogue, and identified as a planetary nebula in 1990. It has a central star with a magnitude of 17. [5] The central star is a variable star, with a variability of 0.3 in magnitude. [6]

References

  1. ↑ "sh 2-78 Search".
  2. ↑ Mohery, M.; Ali, A.; Mindil, A.; Alghamdi, S.A. "Interacting planetary nebulae III: Verification and galactic population based on the measurements of Gaia EDR3".
  3. ↑ "Astrobasics Sharpless (Sh2)".
  4. ↑ Cappellaro, Enrico; Turatto, Massimo; Salvadori, L.; Sabbadin, Federico. "Four newly identifield planetary nebulae in the Palomar plate 18h48m +12".
  5. ↑ Acker, A.; Ochsenbein, F.; Stenholm, B.; Tylenda, R.; Marcout, J.; Schohn, C. "Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (1992)".
  6. ↑ De Marco, Orsola; Passy, Jean-Claude; Frew, D.J.; Maxwell, Moe; Jacoby, G.H. "The binary fraction of planetary nebula central stars – I. A high-precision, I-band excess search".
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