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NGC 281 — Emission Nebula in Cassiopeia

Emission Nebula Excellent (64/100)
EmissionNebula Cassiopeia (Cas) Visible
Star Map
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1Properties

Magnitude 7.0
Angular Size 35.0′ × 30.0′
F, vL, dif, S triple * on np edge

Position & Identifiers

RA 00h 52m 48.0s
Dec +56° 37' 00.0"
Constellation Cassiopeia (Cas)
Catalog NGC 281

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Medium+ Medium+ Medium
150mm Newt. Medium+ Medium+ Medium+
C8 203mm Medium+ Medium+ Medium+
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

With O-III filter

Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Easy Easy Easy
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy on Seestar S50

3Visibility

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Best season Aug – Oct (peak: Sep)

4 Filter Response Guide

5 Eyepiece View

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50x TFOV: 1.0° Lim. mag: 13.6
N E

NGC 281 · 35.0′×30.0′ · N up, E left

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6 Surface Brightness

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