When is the best time to observe IC 2106?

IC 2106 is best observed from October through December, with peak visibility during November when it transits around midnight in the Northern Hemisphere.

Where is IC 2106 located in the sky?

IC 2106 lies in the constellation Caelum at right ascension 04h 57m and declination -28° 30′.

What telescope do I need to see IC 2106?

At magnitude 12.9, IC 2106 is a challenging target that needs at least an 8-inch (200 mm) telescope and dark skies.

IC 2106 — Galaxy in Caelum

Galaxy Fair (39/100)

Barred Spiral

Magnitude 12.9^m Galaxy Caelum (Cae) Visible

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1Properties

Magnitude 12.94

Angular Size 1.8′ × 1.0′

Position Angle 156°

Distance 233.97 million ly

Galaxy Type Barred Spiral (SBb)

Description

eeF, pL, D* 24s f

Position & Identifiers

RA 04h 56m 33.9s

Dec -28° 30' 14.0"

Constellation Caelum (Cae)

Catalog IC 2106

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 Oct – Dec (peak: Nov)

4 Eyepiece View

Telescope Eyepiece

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125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

IC 2106 · 1.8′×1.0′ · 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 1744

Hard+

Barred spiral galaxy

Galaxy mag 11.2 2.6° Lepus

NGC 1800

Hard

Bright spiral galaxy

Galaxy mag 12.6 4.0° Columba

Gamma Cae

Medium

Easy double, sep 3.2″

Double Star mag 4.55 7.2° Caelum

M79

NGC 1904

Easy

Globular cluster — dense ball of ancient stars

Globular Cluster mag 7.7 7.3° Lepus

NGC 1808

Medium+

Bright spiral galaxy

Galaxy mag 9.9 9.3° Columba

IC 2122

Hard

Elliptical galaxy

Galaxy mag 13.08 9.8° Columba

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