Deep Sky Object in Spring
NGC2818 (Planetary Nebula in Pyxis)



Date & Time: Apr 4 2025, from 21:31 to 22:09 JST(+0900)
Composed 13 shots with 3 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



NGC2818 / Planetary nebula, type IIIb
R.A.09h 16m 01.5s (2000.0)
Dec.-36°37' 37" (2000.0)
Apparent Size93.0×55.0"
Real Size3.25 light yrs.
Magnitude13.0
Distance10400 light yrs.
Other IDsPK 261+8.1
NGC2818A / Open Cluster, type III 1 m n
R.A.09h 16m 10.0s (2000.0)
Dec.-36°37' 06" (2000.0)
Apparent Size9.0'
Real SizeN/A
# of Stars40
Magnitude8.2
DistanceN/A
Other IDsCr 206, Mel 96
This is a small planetary nebula located at the southeastern edge of the constellation Pyxis, about 7.4 degrees east of the βPyx. It has a major axis of approximately 1.5 arcminutes and exhibits a bipolar structure extending east to west. The nebula is located about 10,000 light-years from the solar system, and its actual size is slightly over 3 light-years.
The open cluster that appears to overlap with the planetary nebula is NGC2818A. It spans about 9 arcminutes and consists of roughly 40 stars. Since NGC2818 has a different radial velocity, the two objects are considered to be unrelated and only appear to lie in the same direction by chance.




M97(Owl Nebula)

NGC3132


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