Deep Sky Object in Summer
NGC6894 (Planetary Nebula in Cygnus)


Date & Time: Nov 3 2024, from 19:09 to 20:06 JST(+0900)
Composed 15 shots with 4 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(2040×2040)
Device Size...10×10mm
Sensitivity...ISO4000, White Balance...Daylight


NGC6894 / Planetary nebula, type IV+II
R.A.20h 16m 24.0s (2000.0)
Dec.+30°33' 51" (2000.0)
Apparent Size60.0"
Real Size0.42 light yrs.
Magnitude14.4
Distance1460 light yrs.
Other IDsHenize 2-460, PK 69-2.1
NGC6894 is a small planetary nebula lurking in the southern part of the constellation Cygnus. It can be found 10.3 degrees ENE of Albireo. It appears as a neat ring with a visual diameter of 1 arc minute, but under strong magnification, a complex nebular structure can be observed within the hollow interior. The central star has a brightness of 18th magnitude, and its distance from Earth is estimated to be 1460 light-years.



Crescent Nebula(NGC6888)
Blue Flash Nebula(NGC6905)

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