Deep Sky Object in Autumn
PK131-5.1 (Planetary Nebula in Perseus)


Date & Time: Dec 28 2024, from 18:17 to 18:59 JST(+0900)
Composed 8 shots with 6 minutes 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


PK131-5.1 / Planetary Nebula
R.A.01h 53m 03.1s (2000.0)
Dec.+56°24' 17" (2000.0)
Apparent Size24.0"
Real SizeN/A
Magnitude14.9
DistanceN/A
Other IDs -
PK131-5.1 is a small planetary nebula located at the northernmost edge of the constellation Perseus. To locate it, trace 5.2 degrees southeast from δ Cassiopeiae, one of the stars forming the "W" shape in Cassiopeia. With a brightness of 14th magnitude or dimmer and an apparent diameter of 24 arcseconds, a large telescope is required for visual observation. The nebula is nearly circular in shape, and its edge is outlined by a reddish Hα-emitting composition.



PK107+7.1
Around PK136+5.1 & Abell 6

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