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IC 2128 — Diffuse Nebula in Dorado

Diffuse Nebula Modest (14/100)
Magnitude 11.1m DiffuseNebula Dorado (Dor) Visible
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1Properties

Magnitude 11.10
Angular Size 4.8′ × 3.6′
Position Angle 40°
Cl, few st and neb (in LMC)

Position & Identifiers

RA 05h 22m 44.2s
Dec -68° 03' 40.0"
Constellation Dorado (Dor)
Catalog IC 2128

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Hard Hard V. hard+
150mm Newt. Medium Hard+ Hard+
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. Medium Hard+ Hard
150mm Newt. Medium+ Medium+ Medium
C8 203mm Easy Medium+ Medium+
Easy on Seestar S50

3Visibility

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Best season Nov – Jan (peak: Dec)

4 Filter Response Guide

5 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

IC 2128 · 4.8′×3.6′ · N up, E left

Explore

6 Surface Brightness

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

NGC 1953
Hard+
Compact globular cluster
Globular Cluster mag 11.74 0.8° Dorado
NGC 1966
Medium
Open cluster
Open Cluster mag 11.83 0.8° Dorado
NGC 2069
Medium+
Diffuse nebula
Diffuse Nebula mag 10.10 1.7° Dorado
Tarantula Nebula
NGC 2070
Medium+
Emission nebula — try an OIII filter
Emission Nebula mag 8.0 1.8° Dorado
NGC 1714
Hard+
Diffuse nebula
Diffuse Nebula mag 11.61 3.1° Dorado
IC 2105
Hard+
Diffuse nebula
Diffuse Nebula mag 11.30 3.2° Dorado
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