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IC 5139 — Galaxy in Piscis Austrinus

Galaxy Fair (25/100)

Elliptical

Magnitude 12.6m Galaxy Piscis Austrinus (PsA) Visible
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1Properties

Magnitude 12.57
Angular Size 2.2′ × 1.0′
Position Angle 32°
Distance 249.84 million ly
Galaxy Type Elliptical (E-S0)
vF, S, lE

Position & Identifiers

RA 21h 50m 24.0s
Dec -31° 00' 00.0"
Constellation Piscis Austrinus (PsA)
Catalog IC 5139

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Hard Hard V. hard+
150mm Newt. Medium Hard+ Hard
C8 203mm Medium+ Medium 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 Jul – Sep (peak: Aug)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

IC 5139 · 2.2′×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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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 7173
Medium
Elliptical galaxy
Galaxy mag 12.1 2.7° Piscis Austrinus
NGC 7176
Medium
Elliptical galaxy
Galaxy mag 11.9 2.7° Piscis Austrinus
NGC 7187
Hard+
Bright spiral galaxy
Galaxy mag 12.55 3.2° Piscis Austrinus
NGC 7135
Medium
Elliptical galaxy
Galaxy mag 11.7 3.9° Piscis Austrinus
M30
Jellyfish Cluster
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 7.2 8.1° Capricornus
Show on Map

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