Deep Sky Object in Spring
PK238+34.1 (Planetary Nebula in Hydra)
|Date & Time: ||Mar 28 2009, from 23:39 to 24:15 JST(+0900)
|Composed 4shots with 12 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
|with BaaderPlanetarium Moon & Skyglow filter|
|Auto-guided with Meade LX200 Equatorial & Pictor 201XT
|Digital Camera: ||Nikon D50 (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording Format...12bit CCD-RAW, converted to 8bit TIFF(3008×2000)|
This picture has captured a very minor and indistinct planetary nebula lying in western Hydra.
The nebula is positioned about 1 degree south of iota Hya,
fairly large one with a diameter of 4.5 arc minutes but very dimmer brightness about 13th magnitude, perhaps you cannot detect it even if you can use larger ranged telescopes.
A 7th magnitude star is glittering just southwest edge of the nebula, this star obstructs the clear figure of the nebula through our own eyes.
This image barely shows you a greenish blued round shape of the nebula but cannot detect detailed inner structure.
|PK238+34.1 / Planetary Nebula, type IIb|
|R.A.||09h 39m 09.1s (2000.0)|
|Dec.||-02°48' 32" (2000.0)|