NGC 7109 — Galaxy in Piscis Austrinus
Fair (24/100)
Observe
1Properties
Magnitude
13.62
Angular Size
0.9′ × 0.8′
Position Angle
105°
Distance
245.98 million ly
Galaxy Type
Elliptical (E)
eF, vS, am st
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Position & Identifiers
2How easy to spot?
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | V. hard+ | V. hard+ | V. hard |
| 150 mm Newton 150mm Newt. | Hard | Hard | V. hard+ |
| Celestron C8 (203 mm SCT) 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
Jul – Sep
(peak: Aug)
4
Eyepiece View
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
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Visibility scores assume a 150 mm Newton at Bortle 4.
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Built the Leviathan of Parsonstown; first to resolve spiral structure of nebulae
Biography
Galaxies and the Interstellar Medium
The Hubble tuning fork, Tully-Fisher distances, metallicity, Wolf-Rayet stars, HII regions, interstellar dust, the 21-cm hydrogen line, and the Sunyaev-Zel'dovich effect — the working toolkit astronomers use to read galaxies and the stuff between their stars.
Article
Piscis Austrinus
Mythology, bright stars, and deep-sky highlights.
Constellation
