When is the best time to observe NGC 5820?

NGC 5820 is best observed from March through May, with peak visibility during April when it transits around midnight in the Northern Hemisphere.

Where is NGC 5820 located in the sky?

NGC 5820 lies in the constellation Boötes at right ascension 14h 59m and declination +53° 53′.

What telescope do I need to see NGC 5820?

At magnitude 11.9, NGC 5820 is best observed with a 6-inch (150 mm) or larger telescope.

NGC 5820 — Galaxy in Boötes

Galaxy Fair (35/100)

Lenticular

Magnitude 11.9^m Galaxy Boötes (Boo) Visible

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1Properties

Magnitude 11.9

Angular Size 1.7′ × 1.1′

Position Angle 94°

Distance 152.31 million ly

Galaxy Type Lenticular (S0)

Description

B, E 90deg +/- , sbM, B D* f 8'

Position & Identifiers

RA 14h 58m 42.0s

Dec +53° 52' 60.0"

Constellation Boötes (Boo)

Catalog NGC 5820

2How easy to spot?

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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

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Best season Mar – May (peak: Apr)

4 Eyepiece View

Telescope Eyepiece

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125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

NGC 5820 · 1.7′×1.1′ · 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.

Galaxy mag 9.9 2.2° Draco

NGC 5908

Hard+

Barred spiral galaxy

Galaxy mag 11.9 3.0° Draco

NGC 5907

Medium

Edge-on galaxy

Galaxy mag 10.4 3.5° Draco

NGC 5879

Medium

Barred spiral galaxy

Galaxy mag 11.5 3.5° Draco

39 Boo

Easy

Tight double — a rewarding split at 2.5″

Double Star mag 5.69 5.4° Boötes

44 Boo

Medium

Eclipsing binary, period 6.4h

Variable Star mag 4.76 6.3° Boötes

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