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NGC 621 — Galaxy in Triangulum

Galaxy Fair (24/100)

Lenticular

Magnitude 14.0m Galaxy Triangulum (Tri) Visible
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1Properties

Magnitude 14.0
Angular Size 1.1′ × 1.1′
Position Angle 105°
Distance 240.29 million ly
Galaxy Type Lenticular (S0)
vF, eS, R, bMN

Position & Identifiers

RA 01h 36m 49.1s
Dec +35° 30' 43.9"
Constellation Triangulum (Tri)
Catalog NGC 621

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 V. 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 Sep – Nov (peak: Oct)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 621 · 1.1′×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

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11

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12

Relativistic Travel

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