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Basic object information

Object name: NGC 7139
Object type: Planetary nebula
Magnitude: 13.3
Size: 1.3'
Size: 1.4'x1.2'
Magnitude of central star: 18.1
Object classification: 3b
Description: vF,cS,R,r Notes: H III 696

Catalog information

RA (J2000.0): 21h 46m 06.0s
Dec (J2000.0): +63° 48' 00"

Constellation: Cepheus

Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 11/12.10.2004 23:10

Telescope: Newton 406/1830mm

Height: 76°
Visuality: III
Weather: +0°C, good

A faint roundish planetary. A slightly darker center is visible with an UHC-filter at 244x but annularity is ambivalent.

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