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NGC 6251 — Galaxy in Ursa Minor

Galaxy Fair (20/100)

Elliptical

Magnitude 14.0m Galaxy Ursa Minor (UMi) Visible
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1Properties

Magnitude 14.0
Angular Size 1.7′ × 1.4′
Position Angle 20°
Distance 279.37 million ly
Galaxy Type Elliptical (E)
cF, S, bM, p of 2

Position & Identifiers

RA 16h 32m 32.0s
Dec +82° 32' 16.4"
Constellation Ursa Minor (UMi)
Catalog NGC 6251

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. V. hard+ V. hard V. hard
150mm Newt. Hard V. hard+ V. hard+
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 Apr – Jun (peak: May)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 6251 · 1.7′×1.4′ · 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.

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