Deep Sky Object in Spring
PK164+31.1 (Planetary Nebula in Lynx)

Date & Time: Oct 19 2012, from 27:21 to 28:22 JST(+0900)
6 shots composed with 10 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with Astronomik CLS-CCD filter
Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
Digital Camera: Canon EOS 550D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
CCD Sensitivity...ISO1600

PK164+31.1 / Planetary Nebula, type IV
R.A.07h 57m 46.6s (2000.0)
Dec.+53° 24' 55" (2000.0)
Apparent Size:6.6'
Real SizeN/A
This is a fairly large sized planetary nebula in center of Lynx. The nebula has a visual diameter of a bit larger than 6 arc minutes, we can capture it with telephoto lenses. But it's very dimmed so we can hardly appreciate through telescopes. This nebula has an anomalous figure with a round rim with a rectangular hole.



Copyright(c) 2012 by Naoyuki Kurita, All rights reserved.
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