When is the best time to observe NGC 1765?

NGC 1765 is best observed from October through December, with peak visibility during November when it transits around midnight in the Northern Hemisphere.

Where is NGC 1765 located in the sky?

NGC 1765 lies in the constellation Dorado at right ascension 04h 58m and declination -62° 02′.

What telescope do I need to see NGC 1765?

At magnitude 13.1, NGC 1765 is a challenging target that needs at least an 8-inch (200 mm) telescope and dark skies.

NGC 1765 — Galaxy in Dorado

Galaxy Fair (24/100)

Elliptical

Magnitude 13.1^m Galaxy Dorado (Dor) Visible

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1Properties

Magnitude 13.10

Angular Size 1.2′ × 1.0′

Position Angle 129°

Distance 408.02 million ly

Galaxy Type Elliptical (E)

Description

cF, S, R, glbM

Position & Identifiers

RA 04h 58m 24.0s

Dec -62° 01' 60.0"

Constellation Dorado (Dor)

Catalog NGC 1765

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	Hard+	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 Oct – Dec (peak: Nov)

4 Eyepiece View

Telescope Eyepiece

125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

NGC 1765 · 1.2′×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

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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.

R Dor

Easy

Semi-regular variable, range 4.8–6.6

Variable Star mag 5.40 2.5° Dorado

NGC 1868

Medium

Compact globular cluster

Globular Cluster mag 11.57 2.7° Dorado

NGC 1831

Medium+

Open cluster

Open Cluster mag 11.0 3.0° Dorado

NGC 1892

Hard+

Bright spiral galaxy

Galaxy mag 12.29 3.6° Dorado

NGC 1947

Easy

Elliptical galaxy

Galaxy mag 10.8 3.7° Dorado

IC 2056

Hard+

Barred spiral galaxy

Galaxy mag 12.0 5.4° Reticulum

NGC 1534

Hard

Bright spiral galaxy

Galaxy mag 12.92 5.8° Reticulum

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