When is the best time to observe NGC 818?

NGC 818 is best observed from September through November, with peak visibility during October when it transits around midnight in the Northern Hemisphere.

Where is NGC 818 located in the sky?

NGC 818 lies in the constellation Andromeda at right ascension 02h 09m and declination +38° 47′.

What telescope do I need to see NGC 818?

At magnitude 13.0, NGC 818 is a challenging target that needs at least an 8-inch (200 mm) telescope and dark skies.

NGC 818 — Galaxy in Andromeda

Galaxy Good (48/100)

Barred Spiral

Magnitude 13.0^m Galaxy Andromeda (And) Visible

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1Properties

Magnitude 13.0

Angular Size 2.2′ × 0.8′

Position Angle 112°

Distance 197.74 million ly

Galaxy Type Barred Spiral (Sbc)

Description

pB, cL, lE, mbM

Position & Identifiers

RA 02h 08m 44.5s

Dec +38° 46' 37.9"

Constellation Andromeda (And)

Catalog NGC 818

2How easy to spot?

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	V. hard+	V. hard	V. hard
150 mm Newton 150mm Newt.	Hard	Hard	V. hard+
Celestron C8 (203 mm SCT) C8 203mm	Hard+	Hard+	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

Telescope Eyepiece

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125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

NGC 818 · 2.2′×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.

59 And

Easy

Easy double, sep 16.6″

Double Star mag 5.63 0.5° Andromeda

NGC 752

Easy

Scattered bright open cluster

Open Cluster mag 5.7 2.4° Andromeda

Galaxy mag 9.9 4.4° Andromeda

NGC 679

Hard+

Elliptical galaxy

Galaxy mag 12.4 4.8° Andromeda

IC 239

Hard+

Galaxy

Galaxy mag 11.2 5.4° Andromeda

NGC 750

Medium

Elliptical galaxy

Galaxy mag 12.2 6.0° Triangulum

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