Deep Sky Object in Spring
NGC4361 (Planetary Nebula in Corvus)

Date & Time: Jan 31 2004, from 25:58 to 26:07 JST(+0900)
Composed 3 shots with 3 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Fujifilm FinePix S2 Pro
Location: Ooizumi vil., Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024×2016)
CCD Sensitivity...ISO1600, White Balance...Auto

NGC4361 / Planetary Nebula, type IIIa+II
R.A.12h 24m 30.0s (2000.0)
Dec.-18° 48' 00" (2000.0)
Apparent Size81"
Real Size1.69 light yrs.
Distance4300 light yrs.
NGC4361 is a compact planetary nebula positioned in the square of Corvus in spring's southern skies. The nebula has a brightness and size of 10th magnitude and only 1.8 arc minutes, respectively. Maybe you can distinguish the nebula from normal stars by using of magnifying power over 100, and the nebula has a bit bluish color. The picture tells you the nebula has a fairly warped shape, not simple oval appearance. The nebula was formed by gaseous matter gushed out from a dead dwarf star.

⇒ Display the spectral profile of NGC4361
(in new window)

Jupiter Nebula(NGC3242)


Copyright(c) 2004 by Naoyuki Kurita, All rights reserved.
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