Psi Andromedae — Star in Andromeda
Observe
1Physical Properties
Magnitude
4.95
Spectral Type
G5Ib+A0V
supergiant
Star Color
Orange
(B-V 1.11)
Distance
3,262 ly
2Position & Identifiers
RA
23h 46m 02.1s
Dec
+46° 25' 13.0"
Constellation
Andromeda
(And)
HR
9003
HIP
117221
HD
223047
SAO
53355
Bayer
Psi
Flamsteed
20 And
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium | Medium | Hard+ |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 150 mm telescope 150mm scope | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
4Visibility
Set a location in User Settings to see visibility data.
Best season
Aug – Oct
(peak: Sep)
5Survey Image
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Explore
6
Size Comparison
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7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
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10
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
13
Stellar Fusion
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14Stellar Notes
Component A has composite spectrum but star unresolved by interferometer. vsini of G5 component <19:k/s, A0 component | =<50k/s. Component B, 14.6v at 25"; C, 13.1v at 62".
15
Light Travel Time Machine
16
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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Article
Andromeda
Mythology, bright stars, and deep-sky highlights.
Constellation
