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NGC 842 — Galaxy in Cetus

Galaxy Fair (33/100)

Lenticular

Magnitude 12.7m Galaxy Cetus (Cet) Visible
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1Properties

Magnitude 12.69
Angular Size 1.7′ × 0.8′
Position Angle 157°
Distance 176.69 million ly
Galaxy Type Lenticular (S0)
vF, vS, R, psbM, 3rd of 3

Position & Identifiers

RA 02h 09m 50.8s
Dec -07° 45' 45.0"
Constellation Cetus (Cet)
Catalog NGC 842

2How easy to spot?

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

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

Medium on Seestar S50

3Visibility

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Best season Sep – Nov (peak: Oct)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 842 · 1.7′×0.8′ · N up, E left

5 Best Magnification

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6 Surface Brightness

7 Morphology Decoder

8 Inclination & True Shape

9 Redshift

10 Size Comparator

Discover

11

Light Travel Time Machine

12

Relativistic Travel

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 788
Hard+
Bright spiral galaxy
Galaxy mag 12.3 2.4° Cetus
NGC 833
Hard
Bright spiral galaxy
Galaxy mag 12.7 2.4° Cetus
NGC 838
Hard+
Bright spiral galaxy
Galaxy mag 12.8 2.4° Cetus
NGC 883
Hard+
Elliptical galaxy
Galaxy mag 13.0 2.5° Cetus
Mira
68 Cet
Easy
Mira-type variable, range 2.0–10.1
Variable Star mag 3.04 5.3° Cetus
66 Cet
Easy
Easy double, sep 16.8″
Double Star mag 5.54 5.4° Cetus
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