Deep Sky Object in Autumn
PK104-29.1 (Jones 1, Planetary Nebula in Pegasus)


Date & Time: Oct 16 2004, from 20:40 to 21:08 JST(+0900)
Composed 4 shots with 8 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 x 2016)
CCD Sensitivity...ISO1600, White Balance...Auto



PK104-29.1 / Planetary Nebula, type IIIb
R.A.23h 35m 54.0s (2000.0)
Dec.-30° 28' 00" (2000.0)
Apparent Size0.9'
Real SizeN/A
Magnitude12.1
DistanceN/A
It's a large but indistinct planetary nebula in northern Pegasus. The nebula has a catalogue number of PK104-29.1, but often called "Jones 1" in USA. A visual diameter is estimated larger than 1 arc minute, you can record a figure of the nebula only with small telephoto lenses in films. But the nebula is very pale, this image shows you only edges of north and south regions. The real shape of the nebula is almost round.



vdB14, vdB15
Abell85

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