When is the best time to observe NGC 6739?

NGC 6739 is best observed from June through August, with peak visibility during July when it transits around midnight in the Northern Hemisphere.

Where is NGC 6739 located in the sky?

NGC 6739 lies in the constellation Pavo at right ascension 19h 08m and declination -61° 22′.

What telescope do I need to see NGC 6739?

At magnitude 12.1, NGC 6739 is a challenging target that needs at least an 8-inch (200 mm) telescope and dark skies.

NGC 6739 — Galaxy in Pavo

Galaxy Fair (33/100)

Lenticular

Magnitude 12.1^m Galaxy Pavo (Pav) Visible

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1Properties

Magnitude 12.14

Angular Size 2.6′ × 0.9′

Position Angle 173°

Distance 197.88 million ly

Galaxy Type Lenticular (S0)

Description

cF, vS, cE, psbM, 3 st p

Position & Identifiers

RA 19h 07m 48.0s

Dec -61° 22' 00.0"

Constellation Pavo (Pav)

Catalog NGC 6739

2How easy to spot?

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

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 Jun – Aug (peak: Jul)

4 Eyepiece View

Telescope Eyepiece

125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

NGC 6739 · 2.6′×0.9′ · 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.

NGC 6746

Hard+

Elliptical galaxy

Galaxy mag 12.84 0.7° Pavo

NGC 6733

Hard+

Elliptical galaxy

Galaxy mag 12.59 0.9° Pavo

IC 4831

Medium

Edge-on galaxy

Galaxy mag 12.08 1.2° Pavo

IC 4798

Hard+

Bright spiral galaxy

Galaxy mag 12.34 1.4° Pavo

C93

NGC 6752

Easy

Large bright globular cluster

Globular Cluster mag 5.4 1.4° Pavo

Xi Pav

Medium

Easy double, sep 3.7″

Double Star mag 4.36 5.3° Pavo

Kappa Pav

Medium+

Variable star, range 3.9–4.8

Variable Star mag 4.44 6.0° Pavo

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