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NGC 1973 — Diffuse Nebula in Orion

Diffuse Nebula Good (53/100)
Magnitude 7.0m DiffuseNebula Orion (Ori) Visible
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1Properties

Magnitude 7.00
Angular Size 5.0′
*8-9 inv in neb (1977)

Position & Identifiers

RA 05h 35m 06.0s
Dec -04° 43' 60.0"
Constellation Orion (Ori)
Catalog NGC 1973

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 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

NGC 1973 · 5.0′×5.0′ · 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 1975
Medium+
Diffuse nebula
Diffuse Nebula mag 7.00 0.1° Orion
NGC 1981
Easy
Rich open cluster
Open Cluster mag 4.6 0.3° Orion
M43
NGC 1982
Easy
Emission nebula — try an OIII filter
Emission Nebula mag 9.0 0.5° Orion
Theta Ori
HIP 26235; Theta2 Orionis; 43 Orionis
Easy
Easy double, sep 52.3″
Double Star mag 5.08 0.7° Orion
NGC 2071
Medium+
Diffuse nebula
Diffuse Nebula mag 8.00 5.9° Orion
Show on Map

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