Deep Sky Object in Autumn
Saturn Nebula (NGC7009 in Aquarius)


Date & Time: Oct 21 2023, from 20:38 to 20:59 JST(+0900)
Composed 8shots with 2 minutes & 5shots with 15 seconds 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


NGC7009 / Planetary Nebula, type IV+VI
R.A.21h 04m 12.0s (2000.0)
Dec.-11° 22' 00" (2000.0)
Apparent Size44×26"
Real Size0.31×0.18 light yrs.
Magnitude8.4
Distance1430 light yrs.
Other IDsPK 37-34.1
In western part of Aquarius, it's a small planetary nebula lying about 4.5 degrees southeast from ε Aqr. This nebula is well known as "Saturn Nebula" because the nebula has projections in both sides. The central round part has a diameter of about 30 arc seconds, your telescope-aided eyes can detect uneven structures in central part. NGC7009 is a remnant of star about 1430 light years away.

⇒ Display the spectral profile of NGC7009 (in new window)



NGC1579
NGC7023

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