When is the best time to observe NGC 7633?

NGC 7633 is best observed from August through October, with peak visibility during September when it transits around midnight in the Northern Hemisphere.

Where is NGC 7633 located in the sky?

NGC 7633 lies in the constellation Indus at right ascension 23h 23m and declination -67° 39′.

What telescope do I need to see NGC 7633?

At magnitude 12.7, NGC 7633 is a challenging target that needs at least an 8-inch (200 mm) telescope and dark skies.

NGC 7633 — Galaxy in Indus

Galaxy Fair (33/100)

Lenticular

Magnitude 12.7^m Galaxy Indus (Ind) Visible

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1Properties

Magnitude 12.67

Angular Size 2.2′ × 1.3′

Position Angle 85°

Distance 174.68 million ly

Galaxy Type Lenticular (S0-a)

Description

F, vS, E 90deg , psbM

Position & Identifiers

RA 23h 23m 06.0s

Dec -67° 39' 00.0"

Constellation Indus (Ind)

Catalog NGC 7633

2How easy to spot?

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

Easy Medium Hard Very hard Impossible

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

Medium on Seestar S50

3Visibility

Set a location in User Settings to see visibility data.

Best season Aug – Oct (peak: Sep)

4 Eyepiece View

Telescope Eyepiece

125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

NGC 7633 · 2.2′×1.3′ · 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

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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.

IC 5235

Medium

Bright spiral galaxy

Galaxy mag 11.53 4.2° Tucana

NGC 7358

Hard+

Bright spiral galaxy

Galaxy mag 12.75 4.5° Tucana

Delta Tuc

Easy

Easy double, sep 6.8″

Double Star mag 4.48 6.2° Tucana

NGC 7216

Hard+

Elliptical galaxy

Galaxy mag 12.59 6.6° Indus

NGC 121

Medium+

Compact globular cluster

Globular Cluster mag 10.6 6.7° Tucana

Nu Tuc

Medium

Semi-regular variable, range 4.7–5.2

Variable Star mag 4.81 7.8° Tucana

NGC 7192

Medium

Elliptical galaxy

Galaxy mag 12.0 8.4° Indus

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